Datasheet

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DEVICE INFORMATION
OUT
OC
IN
EN
GND
Current
Limit
Driver
UVLO
Charge
Pump
CS
Thermal
Sense
Deglitch
(SeeNote A)
(SeeNoteB)
TPS2045B , TPS2055B
TPS2046B , TPS2047B
SLVS532C – JULY 2004 – REVISED OCTOBER 2007
Terminal Functions (TPS2045B and TPS2055B)
TERMINAL
I/O DESCRIPTION
D PACKAGE DBV PACKAGE
NAME TPS2045B TPS2055B TPS2045B TPS2055B
EN 4 - 4 - I Enable input, logic low turns on power switch
EN - 4 - 4 I Enable input, logic high turns on power switch
GND 1 1 2 2 Ground
IN 2, 3 2, 3 5 5 I Input voltage
OC 5 5 3 3 O Overcurrent open-drain output, active-low
OUT 6, 7, 8 6, 7, 8 1 1 O Power-switch output
FUNCTIONAL BLOCK DIAGRAM (TPS2045B and TPS2055B)
A. Current sense
B. Active low ( EN) for TPS2045B. Active high (EN) for TPS2055B.
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Product Folder Link(s): TPS2045B TPS2055B TPS2046B TPS2047B