Datasheet

TPS2042, TPS2052
DUAL POWER-DISTRIBUTION SWITCHES
SLVS173A – AUGUST 1998 – REVISED APRIL 1999
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2042 functional block diagram
†
Current sense
Thermal
Sense
Driver
Current
Limit
Charge
Pump
UVLO
CS
†
Driver
Current
Limit
CS
†
Thermal
Sense
Charge
Pump
Power Switch
GND
EN1
IN
EN2
OC1
OUT1
OUT2
OC2
Terminal Functions
TERMINAL
NO.
I/O
DESCRIPTION
NAME
D OR P
I/O
DESCRIPTION
TPS2042 TPS2052
EN1 3 – I Enable input. Logic low turns on power switch, IN-OUT1.
EN2 4 – I Enable input. Logic low turns on power switch, IN-OUT2.
EN1 – 3 I Enable input. Logic high turns on power switch, IN-OUT1.
EN2 – 4 I Enable input. Logic high turns on power switch, IN-OUT2.
GND 1 1 I Ground
IN 2 2 I Input voltage
OC1 8 8 O Over current. Logic output active low, for power switch, IN-OUT1
OC2 5 5 O Over current. Logic output active low, for power switch, IN-OUT2
OUT1 7 7 O Power-switch output
OUT2 6 6 O Power-switch output