Datasheet

LM5025
CONTROLLER
FB
OUT_A
OUT_B
-3V
IN_B
IN_A
IN_REF
IN_A
IN_B
LM5110-1
OUT_B
OUT_A
V
CC
V
EE
V
EE
LM5110-1
OUT_A
OUT_B
V
CC
V
EE
V
EE
IN_REF
V
OUT
+10V
V
IN
+5V
Single Supply
& Paralleled Inputs
and Outputs
Dual Supply
utilizing negative
Output voltage
Drive
LM5110
www.ti.com SNVS255A –MAY 2004–REVISED MAY 2004
Typical Application
Figure 4. Simplified Power Converter Using Synchronous Rectifiers
with Negative Off Gate Voltage
PIN DESCRIPTION
Pin
Description
Name Description Application Information
SOIC-8 WSON-10
1 1 IN_REF Ground reference for control Connect to V
EE
for standard positive only output voltage
inputs swing. Connect to system logic ground reference for
positive and negative output voltage swing.
2 2 IN_A ‘A’ side control input TTL compatible thresholds.
3 3 V
EE
Power ground of the driver Connect to either power ground or a negative gate drive
outputs supply.
4 4 IN_B ‘B’ side control input TTL compatible thresholds.
5 7 OUT_B Output for the ‘B’ side driver. Capable of sourcing 3A and sinking 5A. Voltage swing of
this output is from V
CC
to V
EE
.
6 8 V
CC
Positive supply Locally decouple to V
EE
and IN_REF.
7 9 OUT_A. Output for the ‘A’ side driver. Capable of sourcing 3A and sinking 5A. Voltage swing of
this output is from V
CC
to V
EE
.
8 10 nSHDN Shutdown input pin Pull below 1.5V to activate low power shutdown mode.
Copyright © 2004, Texas Instruments Incorporated Submit Documentation Feedback 3
Product Folder Links: LM5110