Datasheet

www.ti.com
Thermal
Sense
Driver
Current
Limit
Charge
Pump
UVLO
CS
Driver
Current
Limit
CS
Thermal
Sense
Charge
Pump
GND
EN1
IN
EN2
OC1
OUT1
OUT2
OC2
Deglitch
Deglitch
(SeeNote A)
(SeeNote A)
TPS2045B , TPS2055B
TPS2046B , TPS2047B
SLVS532C – JULY 2004 – REVISED OCTOBER 2007
Terminal Functions (TPS2046B)
TERMINAL
I/O DESCRIPTION
NAME NUMBER
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
GND 1 Ground
IN 2 I Input voltage
OC1 8 O Overcurrent, open-drain output, active low, IN-OUT1
OC2 5 O Overcurrent, open-drain output, active low, IN-OUT2
OUT1 7 O Power-switch output, IN-OUT1
OUT2 6 O Power-switch output, IN-OUT2
FUNCTIONAL BLOCK DIAGRAM (TPS2046B)
A. Current sense
6 Submit Documentation Feedback Copyright © 2004 – 2007, Texas Instruments Incorporated
Product Folder Link(s): TPS2045B TPS2055B TPS2046B TPS2047B