HAP-S1
79
IC205, 401 PST8429UL
IC1001 TPS2553DBVR
IC701 TB62752AFUG (O, EL)
GND 1
VDD 2
+
–
VREF
OUT
4
CD
3
OVD 2
VIN 3
SHDN 1
4 SW
5 GND
6 FB
ERROR
AMP
CURRENT
LIMIT
PWM
CONTROL
SHUTDOWN
FUNCTION
OSC
(1.1MHz)
REFERENCE
OVER VOLTAGE
DETECTION
GND 2
EN 3
IN 1
4 FAULT
5 ILLM
6 OUT
CHARGE
PUMP
UNDERVOLTAGE
LOCKOUT
THERMAL
SENSE
CURRENT
LIMIT
4-ms
DEGLITCH
8-ms
DEGLITCH
CURRENT
SENSE
DRIVER
+
–
RREVERSE VOLTAGE
COMPARATOR
– DIGITAL IO Board –
IC4003 MM1839A33NRE
VOUT
4
CONT 1
GND 2
NC 3
VIN
5
+
–
VOLTAGE
REFERENCE
REGULATOR
CURRENT
LIMIT
THERMAL
SHUTDOWN
BIAS