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2  MIC-3890 Startup Manual

OUTPUTS

Assignment DC VOLTAGE

CURRENT

PIN NBR

V01

+12V

min Typ Max CNT1-P8,P9

0A 20A 20A

COM

Return of all ouput

CNT1-

P6,P7,C3,B6,D4

5Vsb

+5V

0A 2.5A 2.5A CNT1-C6,D6

-VS

The negative remote sense 

of V01

CNT1-A2

12VCS

The current share bus of V01

CNT1-B2

EN

Active low to enable

CNT1-A6

FAL

Active low to show power  is fail  CNT1-D2

+VS

The positive remote sense 

of V01

CNT1-A3

PSNON

Active low to enable V01

CNT1-B3

PS_P

PS_present, pull low  in the 

PSU

CNT1-D3

A2

I²C address  bit 2

CNT1-A4

A1

I²C address  bit 1

CNT1-B4

A0

I²C address  bit 0

CNT1-C4

SDA

Data interface respectively for 

I²C logic

CNT1-A5

SCL

Clock  interface respectively for 

I²C logic

CNT1-B5

ALERT

Active low to alert fot PUMBus

CNT1-C2

DEG

Active low to show over tem-

perature

CNT1-D2

M12 Connector Input Pin Definition

Item

Pin define

Remark

1,4

+110V

Input anode

2,3

-110V

Input cathode

Wago Connector Input Pin Definition

Item

Pin define

Remark

1

+110V

Input anode

2

-110V

Input cathode

3

PE

GND

Input

• 

Input Voltage:

 Range 66V-160V

DC

; Type 110V

• 

Input Current:

 ≤5A

• 

Inrush Current:

 Peak 11.4A at 160V

DC

• 

Input Connector:

 Wago 769-663/004-000/Harting 21 03 

321 3401

Output

• 

Output Voltage: 

V1: +12V/STANDBY V2: +5V

• 

Output Current (typ.): 

V1: 20A/STANDBY V2: 2.5A

• 

Output Wattage:

 Typ. 250W continuous

• 

Output Connector:

 FCI 51939-667LF

• 

Noise & Ripple: 

5V: ≤100MV;12V: ≤120mV

• 

Remote Sense:

 Available at 12V

• 

Current Sharing: 

Available at 12V

Protection 

• 

Over Voltage:

 Built-in (LATCH)

• 

Over Current:

 Installed

• 

Over Temperature:

 Available

General

•  Efficiency:

 ≥84%

• 

Switching Frequenc:

 225~275KHz, Typical 250KHz 

• 

Dielectric Withstand:

 1500V

AC

• 

Remote ON/OFF:

 Available

• 

PM Bus Interface: 

Available

• 

Power Fail Signal: 

Available at [FAL#] pin

• 

DC OK: 

Available for V1 & +5Vsb (V2)

• 

N+1 Redundancy:

 Internal OR-ing diodes

• 

Hot-swappable:

 Available

• 

Status LED: 

- <Green> means valid input voltage 

- <Red> means a critical fault

1

V1: +12V

2

V2: +5V

Environmental

• 

Operating Temperature:

 -40 ~ 70° C (with air flow and 

derating)

• 

Storage Temperature:

 -55° C to +85° C

• 

Operating Humidity: 

95 % @ 40° C, non-condensing

• 

Cooling: 

≥150W, forced air (2.42m³/min Fan)

• 

Vibration: 

2.0 Grms (5~500 Hz)

Safety/EMC

• 

Emissions (conducted):

 GB/T 24338.5/EN50121-4

• 

Safety Standard:

 GB/T 25119

• 

Surge:

 EN50121-3-2

• 

Shock and Vibration:

 GB/T 21563; GB/T 24338.4

• 

Radiated Susceptibility:

 EN50121-3-2/IEC 62236-3-2

Assignment

Volt.

Typ

Min

Max

V1

12V

20A

0A

20A

V2

5V

2.5A

0A

2.5A

   Output Voltage & Current Rating Chart

  

Specifications 

  Pin Assignment

   Derating Curve

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