Datasheet

Thermal
Sense
Charge
Pump
Q ison
2
Q ison
2
Q ison
1
UVLO(V )
DD
UVLO(IN2)
UVLO(IN1)
V
I(SNS)
>0.8V
V
O(OUT)
>V
I(INx)
EN2 EN1
Control
Logic
+
+
100mV
0.8V
0.6V
Cross-Conduction
Detector
0.5V
k I
O(OUT)
´
I
O(OUT)
TPS2112A:k=0.2%
TPS2113A:k=0.1%
IN2
UVLO
V
DD
UVLO
IN1
UVLO
V =0V
f
V =0V
f
1 Am
Internal V
DD
IN1
8
IN2
6
EN
2
VSNS
3
GND
5
IN1
IN2
EN1
Q
1
Q
2
4
7
OUT
ILIM
STAT
1
TPS2112A
TPS2113A
SBVS045C –MARCH 2004–REVISED MAY 2012 www.ti.com
FUNCTIONAL BLOCK DIAGRAM
8 Copyright © 2004–2012, Texas Instruments Incorporated