Datasheet
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 B)
Note A: Current sense
Note B: Active low (ENx
) for TPS2042B; Active high (ENx) for TPS2052B
(See Note B)
(See Note A)
TPS2041B, TPS2042B
TPS2043B, TPS2044B, TPS2051B
TPS2052B, TPS2053B, TPS2054B
SLVS514L –JUNE 2010–REVISED JUNE 2011
www.ti.com
Terminal Functions (TPS2042B and TPS2052B)
TERMINAL
D, DGN, and DRB PACKAGES I/O DESCRIPTION
NAME TPS2042B TPS2052B
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 Ground
IN 2 2 I Input voltage
OC1 8 8 O Overcurrent, open-drain output, active low, IN-OUT1
OC2 5 5 O Overcurrent, open-drain output, active low, IN-OUT2
OUT1 7 7 O Power-switch output, IN-OUT1
OUT2 6 6 O Power-switch output, IN-OUT2
Internally connected to GND; used to heat-sink the part to the circuit board
PowerPAD™ - -
traces. Should be connected to GND pin.
Functional Block Diagram (TPS2042B and TPS2052B)
6 Copyright © 2010–2011, Texas Instruments Incorporated