background image

Output voltage is adjustable by the external resistor.

The temperature coefficient could become worse, depending on the type of a resistor.

 Resistor

・・・・

Metal film type, coefficient of less than ±100ppm/

When TRM is opened, output voltage is the minimum.

R

TRM

 is calculated in the following expressions.

Table.5.1.1

Calculation result

Fig.5.1.1

Connecting

BRFS/BRDS 5-1

2.1 Pin configuration

5. Adjustable voltage range

(a)BRFS30

(b)BRFS40

60S

120

150/

BRDS40

60S

120

150

+VOUT

+TRM

GND

Load

+S

R

TRM

BRFS30

]

[

8

.

0

8

Ω

k

VOUT

R

TRM

]

[

7

.

0

14

Ω

k

VOUT

R

TRM

]

[

6

.

0

12

Ω

k

VOUT

R

TRM

+VOUT

+TRM

GND

Load

+S

R

TRM

BRFS40

+VOUT

+TRM

GND

Load

+S

-S

R

TRM

-TRM

BRFS
50/50L/
60/100

No

VOUT

R

TRM

1

0.8

OPEN

2

1.0

40.0kΩ

3

1.2

20.0kΩ

4

1.5

11.429kΩ

5

1.8

8.0kΩ

6

2.5

4.706kΩ

7

3.3

3.2kΩ

No

VOUT

R

TRM

1

0.7

OPEN

2

1.0

46.6kΩ

3

1.2

28kΩ

4

1.5

17.5kΩ

5

1.8

12.7kΩ

No

VOUT

R

TRM

1

0.6

OPEN

2

1.0

30.0kΩ

3

1.2

20.0kΩ

4

1.5

13.3kΩ

5

1.8

10.0kΩ

(c)BRFS50

60

100/

BRDS60/100

(a)BRFS30

(c)BRFS50

60

100/

BRDS60/100

(a)BRFS30

Applications manual

For BRFS/BRDS series

(b)BRFS40

60S

120

150/

BRDS40

60S

120

150

(c)BRFS50

60

100/

BRDS60/100

(b)BRFS40

60S

120

150/

BRDS40

60S

120

150

Summary of Contents for CHS200483R3

Page 1: ...VER1 5 Qualification of BRNS BRFS BRDS series Point of Load applications to Intermediate Bus Architecture Page BRNS Page BRFS BRDS Page BRFS BRDS Page CHS and BR...

Page 2: ...e voltage BRNS 4 7 Rise time BRNS 4 8 Derating BRNS 4 9 5 Adjustable voltage range BRNS 5 1 6 Protect circuitry BRNS 6 1 Overcurrent protection BRNS 6 1 7 Remote ON OFF BRNS 7 1 8 Remote sensing BRNS...

Page 3: ...Fig 1 1 Pin connection for BRNS bottom view Table 1 1 Pin connection and function of BRNS a BRNS6 12 b BRNS20 BRNS 1 1 2 1 Pin configuration 1 Pin configuration Applications manual For BRNS series...

Page 4: ...ple distance between the line pattern layout and the unit Also avoid placing the DC output line pattern underneath the unit because it may increase the output noise Lay out the pattern away from the u...

Page 5: ...n for reflow of BRNS series Please make sure that the temperature of board s pattern near by VOUT and GND terminal While soldering having vibration or impact on the unit should be avoided because of s...

Page 6: ...size for stencil openings is shown in Fig 2 4 1 Fig 2 4 1 Recommended size for stencil openings Top view Dimensions in mm inches Recommended stencil thickness is 0 12mm BRNS 2 3 a BRNS6 12 b BRNS20 Ap...

Page 7: ...ept under uncontrolled condition which is 30 60 RH or higher Original reels are not heat resistant Please move them to heatresistant trays in preparation to bake To check moisture condition in the pac...

Page 8: ...s to turn on the power supply GND RC VOUT S GND S S only BRNS20 Connect resistance to set the output voltage between TRM and GND Between input and output is not isolated The BRNS series handle only th...

Page 9: ...the input side Install an external capacitor Ci between VIN and GND input pins for low line noise and for stable operation of the power supply Table 3 2 2 Recommended external input capacitor Ceramic...

Page 10: ...rity input voltage It will damage the power supply It is possible to protect the unit from the reverse input voltage by installing an external diode as shown in Fig 3 2 2 Fig 3 2 2 Reverse input volta...

Page 11: ...h Co and ESL of the wiring if resonance frequency and switching frequency are close Ripple and Ripple Noise are measured as shown in the Fig 3 3 2 Cin is shown in Table 3 2 2 Co1 and Co2 is shown in T...

Page 12: ...oad Current A 60 68 76 84 92 100 0 2 4 6 Efficiency Load Current A 60 68 76 84 92 100 0 4 8 12 Efficiency Load Current A 60 68 76 84 92 100 0 4 8 12 2 1 Pin configuration 4 Applications data Input Vol...

Page 13: ...8 76 84 92 100 0 5 10 15 20 Efficiency Load Current A 60 68 76 84 92 100 0 5 10 15 20 Efficiency Load Current A 60 68 76 84 92 100 0 5 10 15 20 Input Volt Input Volt Input Volt 14 4V 6 5V 12V Input Vo...

Page 14: ...nse BRNS 4 3 100 s div 100 s div 100 s div 100 s div 100 mV div 100 mV div Vin 12V Vout 1 2V Cin 22 F 2 Cout 1000 F Testing Circuitry Fig 4 2 3 2 Load 50 3A Load 0 0A Load 100 6A Load 50 3A Cycle Load...

Page 15: ...100 s div 100 s div 100 s div 100 s div Cycle Load Current 5 m t1 t2 50 s t1 t2 Vin 12V Vout 1 2V Cin 22 F 2 Cout 1000 F Testing Circuitry Fig 4 2 3 2 100 mV div 100 mV div Load 50 6 A Load 100 12A s...

Page 16: ...00 s div 100 s div 100 s div 100 s div Cycle Load Current 5 m t1 t2 50 s t1 t2 Vin 12V Vout 1 2V Cin 22 F 3 Cout 1000 F Testing Circuitry Fig 4 2 3 2 100 mV div 100 mV div Load 50 10 A Load 100 20A s...

Page 17: ...oad Response BRNS 4 6 Load 25mm Cout2 VIN VOUT GND DC Input Cin S 3mm Cout1 Cin 22 F 2 22 F 2 22 F 3 3 BRNS20 100 F 900 F No 1 2 Model Cout1 Cout2 BRNS6 BRNS12 100 F 900 F 100 F 900 F Oscilloscope Bw...

Page 18: ...mV div b BRNS12 Vin 12V Vout1 2V Load Current 20A BRNS20 Vin 12V Vout1 2V Load Current 12A Oscilloscope Bw 20MHz R C R 50 C 0 01uF 1 5m 50 Coaxial cable Load 25mm Cout2 3mm Cout1 VIN VOUT GND DC Input...

Page 19: ...g 4 4 2 Load current 0A Cin 22 F 2 Cout 100 F 47 F BRNS12 Rise at 25 200mV div 2V div 5ms div 5ms div Rise time 3 5ms Rise time 3 8ms Vin 8V Vout 0 6V Vin 12V Vout 5 5V Fig 4 4 3 Load current 0A Cin 2...

Page 20: ...specified point be less than or equal to the temperature shown in FIG 1 Ambient temperature must be maintained at 85 or less Fig 4 5 1 Derating curve for BRNS Fig 4 5 2 Temperature measurement locati...

Page 21: ...4 Measuring method Fig 4 5 5 Derating curve for BRNS6 at 12Vin 1 2Vout Fig 4 5 6 Derating curve for BRNS6 at 12Vin 3 3Vout BRNS 4 10 12 7mm 76mm 25 4mm BRNS20 PWB Measurement point for ambient tempera...

Page 22: ...NS12 at 12Vin 5 5Vout BRNS 4 11 0 6 5 4 Load current A 3 2 1 40 60 80 Ambient temperature 40 20 0 20 1m s 2m s 0 40 60 80 Ambient temperature 40 20 0 20 Load current A 12 10 8 6 4 2 1m s 2m s 0 40 60...

Page 23: ...ing curve for BRNS20 at 12Vin 5 5Vout BRNS 4 12 0 20 16 12 8 4 Load current A 40 Ambient temperature 20 0 20 40 60 80 1m s 2m s 0 40 60 80 Ambient temperature Load current A 20 16 12 8 4 40 20 0 20 1m...

Page 24: ...a resistor Resistor Metal film type coefficient of less than 100ppm When TRM is opened output voltage is 0 6V RTRM is calculated in the following expressions Fig 5 1 1 Calculation result Fig 5 1 2 Co...

Page 25: ...there is a possibility that the ripple voltage is high value If the ripple voltage value is problem connecting a capacitor of Table 3 3 1 value Fig 5 1 3 Operating area of BRNS series When start of DC...

Page 26: ...whenever possible The output voltage of the power module will recover automatically when the fault causing overcurrent is corrected When the output voltage drops after OCP works the power module ente...

Page 27: ...cification of Remote ON OFF Fig 7 1 1 Internal circuitrys of Remote ON OFF Fig 7 1 2 RC connection example ON OFF logic Between RC and GND Output voltage Optional R Positive L level 0 2 0 3V or short...

Page 28: ...e sensing function is use Fig 8 2 1 Connection when the remote sensing is in use Twisted pair wire or shield wire should be used for sensing wire Thick wire should be used for wiring between the power...

Page 29: ...10 Fig 9 1 1 Internal circuitry of PGood Fig 9 1 2 BRNS6 RC 5V div Vin 12V t0 5ms Max PGOOD Vout 5 5V Vout 2V div load current 0A PGOOD 2V div Cin 22uFx2 Cout 100uF 47uF 5ms div Fig 9 1 3 BRNS12 RC 5...

Page 30: ...ing C CSEQ nF 6 TRISE ms 15 CSEQ should be less than 1 0 F At the time of start the output voltage follows the SEQ voltage Output voltage and SEQ voltage are expressed in the following calculation BRN...

Page 31: ...you can control a start sequence of plural BRNS Fig 10 1 1 Example of sequence control If this function is unnecessary please make SEQ pin open BRNS 10 2 a The same time b The same voltage c The time...

Page 32: ...YNC pin is shown in Fig 11 1 2 If this function is unnecessary please make SYNC pin open or short to GND Please wire the input pin of both power supplies which is synchronizing to the same pattern and...

Page 33: ...r the power supply which output CLK started please start the synchronizing power supplies And when stop power supplies you should stop the power supply which output CLK at first The max voltage of CLK...

Page 34: ...ilable by wiring as shown below Fig 12 2 1 Redundancy operation Even a slight difference in output voltage can affect the balance between the values of I1 and I2 Current I3 should not exceed the rated...

Page 35: ...Fig 13 1 3 for Package form Reel The packed number is 200 Fig 13 1 1 Taping dimensions of BRNS6 12 Fig 13 1 2 Taping dimensions of BRNS20 BRNS 13 1 2 1 Pin configuration 13 Package Information Applica...

Page 36: ...Fig 13 1 3 Reel dimensions of BRNS BRNS 13 2 Applications manual For BRNS series...

Page 37: ...e BRFS BRDS 4 9 Ripple voltage BRFS BRDS 4 22 Rise time BRFS BRDS 4 24 Derating BRFS BRDS 4 26 Thermal simulation model BRFS BRDS 4 35 5 Adjustable voltage range BRFS BRDS 5 1 6 Protect circuitry BRFS...

Page 38: ...40 Fig 1 1 1 Pin connection for BRFS30 40 60S bottom view Table 1 1 1 Pin connection and function of BRFS30 40 60S BRFS BRDS 1 1 2 1 Pin configuration 1 Pin configuration Applications manual For BRFS...

Page 39: ...50 Fig 1 2 1 Pin connection for BRFS50 50L 60 100 120 150 bottom view a BRFS50 50L 60 120 b BRFS100 150 Table 1 2 1 Pin connection and function of BRFS50 50L 60 100 120 150 BRFS BRDS 1 2 Applications...

Page 40: ...1 3 BRDS40 Fig 13 1 Pin connection for BRDS40 60S bottom view Table 13 1 Pin connection and function of BRDS40 60S BRFS BRDS 1 3 Applications manual For BRFS BRDS series...

Page 41: ...S60 100 Fig 1 4 1 Pin connection for BRDS60 100 120 bottom view a BRDS60 120 b BRDS100 150 Table 1 4 1 Pin connection and function of BRDS60 100 120 150 BRFS BRDS 1 4 Applications manual For BRFS BRDS...

Page 42: ...he line pattern layout and the unit Also avoid placing the DC output line pattern underneath the unit because it may increase the output noise Lay out the pattern away from the unit Avoid placing the...

Page 43: ...d 1 BRFS100 150 d 2 BRDS100 150 BRFS BRDS 2 2 c 1 BRFS40 60S c 2 BRDS40 60S Applications manual For BRFS BRDS series...

Page 44: ...the PCB as an adsorption point Please see Fig 2 2 1 for details of the adsorption point Fig 2 2 1 Adsorption area b BRFS50 BRFS50L BRFS BRDS 2 3 d BRFS60 BRDS60 a BRFS30 c BRFS40 BRDS40 e BRFS100 BRD...

Page 45: ...ct on the unit should beavoided because of solder melting Please do not do the implementation except the reflow Because some parts drops please do not do reflow of the back side Fig 2 3 1 Recommended...

Page 46: ...der uncontrolled condition which is 30 60 RH or higher Original reels are not heat resistant Please move them to heat resistant trays in preparation to bake To check moisture condition in the pack Sil...

Page 47: ...wer supply GND RC VOUT S GND S S other model than BRFS30 40 Connect resistance to set the output voltage between TRM and GND Between input and output is not isolated The BRFS BRDS series handle only t...

Page 48: ...Table 3 2 2 Recommended external input capacitor Ceramic Ci is within 5mm for pins Make sure that ripple current of Ci is less than its rating When an impedance and inductance level of the input line...

Page 49: ...input voltage It will damage the power supply It is possible to protect the unit from the reverse input voltage by installing an external diode as shown in Fig 3 2 2 Fig 3 2 2 Reverse input voltage pr...

Page 50: ...frequency and switching frequency are close Ripple and Ripple Noise are measured as shown in Fig 3 3 2 Co1 Co2 and Co3 is shown in Table 3 3 2 Fig 3 3 2 Measuring method of Ripple and Ripple Noise Ta...

Page 51: ...are adjacent to each other between the layers of the multilayer board Fig 3 3 4 Inductance reduction of the multilayer board a Adjacent to the next layer b Adjacent in the same layer For the avoidanc...

Page 52: ...84 92 100 0 10 20 30 Input Volt Input Volt Input Volt 14V 4 5V 12V Load Current A Efficiency 60 68 76 84 92 100 0 10 20 30 Input Volt Input Volt Input Volt 14V 4 5V 12V Load Current A Efficiency 60 68...

Page 53: ...50 60 70 80 90 100 0 10 20 30 40 Input Volt Input Volt Input Volt 14V 4 5V 12V Efficiency Load Current A 50 60 70 80 90 100 0 10 20 30 40 Input Volt Input Volt Input Volt 14V 4 5V 12V Efficiency Load...

Page 54: ...14V 4 5V 12V Load Current A Efficiency 60 68 76 84 92 100 0 10 20 30 40 50 60 Input Volt Input Volt Input Volt 14V 4 5V 12V Load Current A Efficiency 60 68 76 84 92 100 0 10 20 30 40 50 60 Input Volt...

Page 55: ...80 90 100 0 10 20 30 40 50 60 Input Volt Input Volt Input Volt 14V 4 5V 12V Efficiency Load Current A 50 60 70 80 90 100 0 10 20 30 40 50 60 Input Volt Input Volt Input Volt 14V 4 5V 12V Efficiency L...

Page 56: ...4 92 100 0 20 40 60 80 100 120 Input Volt Input Volt Input Volt 14V 4 5V 12V Efficiency Load Current A 60 68 76 84 92 100 0 20 40 60 80 100 120 Input Volt Input Volt Input Volt 14V 4 5V 12V Load Curre...

Page 57: ...Volt Input Volt Input Volt 14V 4 5V 12V Input Volt Input Volt Input Volt 14V 4 5V 12V Applications manual For BRFS BRDS series Input Volt Input Volt Input Volt 14V 4 5V 12V Input Volt Input Volt Inpu...

Page 58: ...V Vout 1 2V Vout 1 8V BRFS BRDS 4 7 Input Volt Input Volt Input Volt 14V 4 5V 12V Input Volt Input Volt Input Volt 14V 4 5V 12V Input Volt Input Volt Input Volt 14V 4 5V 12V Applications manual For BR...

Page 59: ...6V Vout 1 0V Vout 1 2V Vout 1 8V Input Volt Input Volt Input Volt 14V 4 5V 12V Input Volt Input Volt Input Volt 14V 4 5V 12V Applications manual For BRFS BRDS series Input Volt Input Volt Input Volt...

Page 60: ...se BRFS BRDS 4 9 Min Load 0A Load 50 15A 100 s div 100 s div 100 s div 100 s div 100 mV div 100 mV div Cycle 5 m Load Current t1 t2 50 s t1 t2 Load 50 15A Load 100 30A Vin 12V Vout 1 2V Cin 22 F 4 Cou...

Page 61: ...100 s div 100 s div 100 s div 100 s div Cycle Load Current 5m t1 t2 50 s t1 t2 Vin 12V Vout 1 2V Cin 22 F 4 Cout 4000 F Testing Circuitry Fig 4 2 3 1 100 mV div 100 mV div s Load 100 40A Load 50 20A M...

Page 62: ...s div 100 s div 100 s div 100 s div Cycle Load Current 5 m t1 t2 50 s t1 t2 Vin 12V Vout 1 2V Cin 22 F 4 Cout 4000 F Testing Circuitry Fig 4 2 3 1 100 mV div 100 mV div s Min Load 0 A Load 50 25A Load...

Page 63: ...100 s div 100 s div 100 s div 100 s div Cycle Load Current 5 m t1 t2 50 s t1 t2 Vin 12V Vout 1 2V Cin 22 F 4 Cout 4000 F Testing Circuitry Fig 4 2 3 1 100 mV div 100 mV div s Load 100 60A Load 50 30A...

Page 64: ...100 s div 100 s div 100 s div 100 s div Cycle Load Current 5 m t1 t2 50 s t1 t2 Vin 12V Vout 1 2V Cin 22 F 4 Cout 8000 F Testing Circuitry Fig 4 2 3 1 100 mV div 100 mV div Load 50 50A Load 100 100A...

Page 65: ...100 s div 100 s div 100 s div 100 s div Cycle Load Current 5 m t1 t2 50 s t1 t2 Vin 12V Vout 1 2V Cin 22 F 4 Cout 4000 F Testing Circuitry Fig 4 2 3 2 100 mV div 100 mV div Load 50 30A Load 100 60A s...

Page 66: ...100 s div 100 s div 100 s div 100 s div Cycle Load Current 5 m t1 t2 50 s t1 t2 Vin 12V Vout 1 2V Cin 22 F 2 Cout 4000 F Testing Circuitry Fig 4 2 3 2 100 mV div 100 mV div Load 50 60A Load 100 120A...

Page 67: ...100 s div 100 s div 100 s div 100 s div Cycle Load Current 5 m t1 t2 50 s t1 t2 Vin 12V Vout 1 2V Cin 22 F 2 Cout 4000 F Testing Circuitry Fig 4 2 3 2 100 mV div 100 mV div Load 50 75A Load 100 150A...

Page 68: ...00 3000 4000 V mV Cout F 0 80 Vout 0 8V 0 80 Vout 1 2V 0 80 Vout 3 3V 0 100 200 300 400 500 0 1000 2000 3000 4000 V mV Cout F 0 50 Vout 0 8V 0 50 Vout 1 2V 0 50 Vout 3 3V 0 V V V VA VA VB or VB VA VB...

Page 69: ...400 0 1000 2000 3000 4000 V mV Cout F 0 80 Vout 0 7V 0 80 Vout 1 2V 0 80 Vout 2V 0 100 200 300 400 500 0 1000 2000 3000 4000 V mV Cout F 0 50 Vout 0 7V 0 50 Vout 1 2V 0 50 Vout 2 0V 0 100 200 300 400...

Page 70: ...0 200 300 400 500 0 1000 2000 3000 4000 V mV Cout F 0 50 Vout 0 6V 0 50 Vout 1 2V 0 50 Vout 2 0V 0 V V V VA VA VB or VB VA VB 0 100 200 300 400 500 0 2000 4000 6000 8000 V mV Cout F 0 50 Vout 0 7V 0 5...

Page 71: ...150 Fig 4 2 2 8 Capacitance Dynamic Load Response characteristics BRFS150 BRDS150 BRFS BRDS 4 20 0 V V V VA VA VB or VB VA VB Applications manual For BRFS BRDS series 0 V V V VA VA VB or VB VA VB Vin...

Page 72: ...sponse BRFS BRDS 4 21 Load L Cout VIN VOUT GND DC Input Cin S RC S 0 Applications manual For BRFS BRDS series Oscilloscope Bw 20MHz Load L Cout VIN VOUT GND DC Input Cin S RC S 0 Oscilloscope Bw 20MHz...

Page 73: ...RFS100 BRDS100 10 mV div 2 s div Applications manual For BRFS BRDS series f BRFS60S BRDS60S 2 s div 10 mV div Vin 12V Vout1 2V Load Cuurent 40A Cin 22 F 4 Cout 100 F 3 Cout Co0 Co2 4 Vin 12V Vout1 2V...

Page 74: ...4 Cout Co1 4 Vin 12V Vout1 2V Load Cuurent 150A Cin 22 F 2 Cout 100 F 4 Cout Co1 4 100 F 100 F 100 F Co3 Co4 100 F 100 F 100 F 100 F 100 F 100 F 100 F 100 F 100 F 100 F BRFS50 50L 60 BRDS60 3 4 BRFS10...

Page 75: ...t 300uF 200mV div 1V div 5ms div 5ms div Rise time 1 0ms Rise time 3 0ms a Vout 0 6V b Vout 2 0V Fig 4 4 3 BRFS50 Cout 200uF 200mV div 1V div 5ms div 5ms div Rise time 1 0ms Rise time 3 0ms a Vout 0 7...

Page 76: ...5ms div 5ms div Rise time 1 0ms Rise time 3 5ms a Vout 0 6V b Vout 2 0V Fig 4 4 7 BRFS120 BRDS120 Cout 400uF 200mV div 1V div 5ms div 5ms div Rise time 1 3ms Rise time 3 5ms a Vout 0 6V b Vout 1 8V Fi...

Page 77: ...ting curve in Fig 4 5 1 Ambient temperature must be kept at 85 or under Fig 4 5 1 Derating curve for BRFS Fig 4 5 2 Temperature measurement location a BRFS30 b BRFS50 c BRFS40 BRDS40 d BRFS60 BRDS60 e...

Page 78: ...4 Measuring method Fig 4 5 5 Derating curve for BRFS30 at 12Vin 0 8Vout Fig 4 5 6 Derating curve for BRFS30 at 12Vin 1 2Vout BRFS BRDS 4 27 PWB 12 7mm 76mm Measurement point for ambient temperature a...

Page 79: ...ng curve for BRFS50 at 12Vin 2 0Vout BRFS BRDS 4 28 0 100 50 40 20 0 20 40 60 80 Load factor Ambient temperature 1m s 2m s 0 40 60 80 100 50 40 20 0 20 Load factor Ambient temperature 1m s 2m s 0 60 8...

Page 80: ...ting curve for BRFS40 BRDS40 at 12Vin 2 0Vout BRFS BRDS 4 29 0 60 80 0 20 40 100 50 40 20 Load factor Ambient temperature 1m s 2m s 0 40 60 80 100 50 40 20 0 20 Load factor Ambient temperature 1m s 2m...

Page 81: ...5 10 Derating curve for BRFS60 BRDS60 at 12Vin 2 0Vout BRFS BRDS 4 30 0 40 60 80 20 0 20 100 50 40 Load factor Ambient temperature 1m s 2m s 0 100 50 40 20 0 20 40 60 80 Load factor Ambient temperatu...

Page 82: ...4 5 10 Derating curve for BRFS100 BRDS100 at 12Vin 2 0Vout BRFS BRDS 4 31 0 40 60 80 40 20 0 20 100 50 Load factor Ambient temperature 1m s 2m s Applications manual For BRFS BRDS series 0 50 40 20 0 8...

Page 83: ...g 4 5 13 Derating curve for BRFS60S BRDS60S at 12Vin 2 0Vout BRFS BRDS 4 32 Applications manual For BRFS BRDS series 0 100 50 40 40 60 80 20 0 20 Load factor Ambient temperature 1m s 2m s 0 100 50 40...

Page 84: ...g 4 5 16 Derating curve for BRFS120 BRDS120 at 12Vin 1 8Vout BRFS BRDS 4 33 Applications manual For BRFS BRDS series 0 100 50 20 40 60 80 40 20 0 Load factor Ambient temperature 1m s 2m s 0 100 50 40...

Page 85: ...g 4 5 19 Derating curve for BRFS150 BRDS150 at 12Vin 1 8Vout BRFS BRDS 4 34 Applications manual For BRFS BRDS series 0 40 60 80 100 50 40 20 0 20 Load factor Ambient temperature 1m s 2m s 0 60 80 40 2...

Page 86: ...elow These model will enable thermal design on simulation using ANSYS icepack Please contact our customer support for more information or request of the simulation model Fig 4 6 1 Thermal simulation m...

Page 87: ...0 60S 120 150 VOUT TRM GND Load S RTRM BRFS30 8 0 8 k VOUT RTRM 7 0 14 k VOUT RTRM 6 0 12 k VOUT RTRM VOUT TRM GND Load S RTRM BRFS40 VOUT TRM GND Load S S RTRM TRM BRFS 50 50L 60 100 No VOUT RTRM 1 0...

Page 88: ...d When the output voltage drops after OCP works the power module enters a hiccup mode where it repeatedly turns on and off at a certain frequency 1 2sec typ 6 2 Thermal protection When the power suppl...

Page 89: ...1 Specification of Remote ON OFF Source current from RC pin is 0 5mA max Fig 7 1 1 Internal circuitrys of Remote ON OFF Fig 7 1 2 RC connection example BRFS BRDS 7 1 ON OFF logic Between RC and GND Ou...

Page 90: ...mote sensing function is in use Fig 8 2 1 Connection when the remote sensing is in use Twisted pair wire or shield wire should be used for sensing wire Thick wire should be used for wiring between the...

Page 91: ...an the start up voltage Power Good pin voltage is undefined The voltage of Power Good is shown in Fig 9 1 2 Power Good cannot be used in the area of undefined Fig 9 1 2 Voltage of PGOOD Fig 9 1 3 BRFS...

Page 92: ...arallel operation in Fig10 2 1 TRM terminal of slave should be connect to GND 100 or less Sensing terminal of the slave to open Connect all SHARE terminal When controlling the rise time by SEQ is poss...

Page 93: ...e 10m or less Parallel operation should be separated Vin line of each BRxS Fig 10 2 2 The beat noise reduction of parallel operation it is effective to put the input CH Fig 10 2 3 Fig 10 2 2 Patternin...

Page 94: ...ng formula CSEQ F 0 284 Vo V 0 06 T ms Vo min Vo 2 0V Vo min 0 6V only BRxS40 or 0 7V CSEQ F 0 284 Vo V 0 047 T ms 2 0 Vo 3 63V only BRFS30 Avoid SEQ terminal voltage is set below the set voltage outp...

Page 95: ...ce of plural BRFS BRDS Fig 11 1 4 Example of sequence control If this function is unnecessary please make SEQ pin open BRFS BRDS 11 2 a The same time b The same voltage c The time lag a The same c The...

Page 96: ...12 1 1 Taping dimensions of BRFS30 40 60S BRDS40 60S Fig 12 1 2 Taping dimensions of BRFS50 50L 60 120 BRDS60 120 BRFS BRDS 12 1 2 1 Pin configuration 12 Package Information Applications manual For BR...

Page 97: ...Fig 12 1 3 Taping dimensions of BRFS100 150 BRDS100 150 Fig 12 1 3 Reel dimensions of BRFS BRDS BRFS BRDS 12 2 Applications manual For BRFS BRDS series...

Page 98: ...ntermediate Bus Architecture CHS and BR 1 1 2 Applications data CHS and BR 2 1 2 1 Startup Sequence CHS and BR 2 1 2 2 Efficiency of the combination of CHS and BR CHS and BR 2 2 2 3 Dynamic Input Resp...

Page 99: ...of load CHS60 1 32 brick CHS80 120 1 16 brick CHS200 300 380 1 8 brick CHS400 500 700 1 4 brick CHS60483R3 CHS604805 CHS604812 CHS80483R3 CHS804805 CHS804812 CHS120483R3 CHS1204805 CHS1204812 CHS2004...

Page 100: ...0A CHS Vout 10V div BRNS Vout 1V div BRNS Iin 5A div CHS Vout 10V div BRNS Vout 1V div BRNS Iin 5A div 5 msec div 5 msec div CHS Vout 10V div BRFS Vout 1V div BRFS Iin 5A div CHS Vout 10V div BRFS Vou...

Page 101: ...0 BRFS50 Load Current A Efficiency 82 84 86 88 90 0 40 80 120 160 200 Load Current A Efficiency 82 84 86 88 90 0 40 80 120 160 200 Load Current A Efficiency 78 80 82 84 86 0 20 40 60 80 100 Load Curre...

Page 102: ...105 110 Load Current A Efficiency 90 92 94 96 98 0 10 20 30 Load Current A Efficiency 90 92 94 96 98 0 10 20 30 40 CHS3004810 CHS3004812 CHS3004812H CHS4004810 CHS4004812 CHS4004812H Load Current A E...

Page 103: ...Iout BRNS Vout 50mV div BRNS Vin CHS Vout 500mV div CHS Iout BRFS Vout 50mV div 50usec div 50usec div CHS Iout BRFS Vout 50mV div b Dynamic Input Response Load 75 24 75A Load 25 8 25A 50us a Dynamic I...

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