Datasheet

SW1
VBST1
EN1
VFB2
VFB1
GND
VREG5
PGND1
VO1
VBST2
EN2
SW2
VO2
VIN1
VIN2
5VREG
EN
Logic
EN Logic
Ref1
Ref 2
SS2
SS1
UV2
UV1
UV2
UVLO
UVLO
Fixed
SoftStart
REF
TSD
Ref1
Ref2
- 32
UV1
-32
SS1
SS2
PGND1
PGND2
- 16%
+16%
PG1
- 16%
+16%
PG2
CH1 Min-off timer
CH2 Min-off timer
VIN1
VIN1
VIN2
PGND2
PGND2
SW2
Ref_OCL
OCP2
ZC2
SW2
PGND1
SW1
Ref_OCL
OCP1 ZC1
SW1
Control logic
1.0 µF
Control logic
0.1 µF
PG
Comp
Err
Comp
Protection
Logic
0.1 µF
Err
Comp
PG
Comp
TPS54394
SLVSBE6B –JUNE 2012–REVISED AUGUST 2013 www.ti.com
FUNCTIONAL BLOCK DIAGRAM
6 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links :TPS54394