TPS22946 Datasheet, PDF (2/30 Pages) Texas Instruments – ULTRA-LOW POWER,LOW INPUT VOLTAGE, CURRENT-LIMITED LOAD SWITCH WITH SHUT-OFF,AUTO-RESTART,AND OVER-CURRENT CONDITION TIME-OUT

TPS22946
SLVS984A – SEPTEMBER 2009 – REVISED OCTOBER 2009......................................................................................................................................... www.ti.com
T_A
–40°C to 85°C
ORDERING INFORMATION⁽¹⁾
PACKAGE ⁽²⁾
ORDERABLE PART NUMBER
WCSP – YZP (0.4-mm pitch)
Reel of 3000 TPS22946YZPR
TOP-SIDE MARKING⁽³⁾
__5H_
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
(3) The actual top-side marking has two preceding characters to denote year, month and one following character to designate the wafer
fab/assembly site. Pin 1 identifier indicates solder-bump composition (1 = SnPb, • = Pb-free).
YZP PACKAGE
C
C
B
B
A
A
21
Laser Marking View
12
Bump View
TERMINALS ASSIGNMENTS
C
ON
B
CL
A
V_IN
2
OC
GND
V_OUT
1
TERMINAL
NO.
NAME
A1 V_OUT
B1 GND
C1 OC
C2 ON
B2 CL
A2 V_IN
TERMINAL FUNCTIONS
TYPE
DESCRIPTION
O Output of the power switch
– Ground
O
Over-current output flag. Active-low open-drain output that indicates an over-current, supply
under-voltage, or over-temperature state.
I On/off control input
I
Current limit selection. CL high is 155-mA current limit, CL low is 70-mA current limit, and CL floating is
30-mA current limit.
I Supply. Input to the power switch and the supply voltage for the device
2
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