lx1996 Microsemi Corporation, lx1996 Datasheet - Page 3

• Manufacturer Part Number: lx1996
• Description: Multi-string Led Back-light Controller
• Manufacturer: Microsemi Corporation

Copyright © 2007
Rev. 1.0, 2007-12-14
PGND
Name
OVP
SRC
DRV
N/C
VIN
TM
Pin #
19
20
21
22
23
24
Over Voltage Protection – Signal input. An external voltage divider sets the maximum boost voltage limit in
case of open LED strings. Refer to applications section for functionality.
Power Ground. Should be tied at a single common point to Signal Ground (GND pin 12).
Boost Converter Current Sense Pin. This connects to the junction of the external N-FET source and the
current sense resistor. It is used to set the peak inductor current.
External N-FET Gate Drive. Connect to the Gate of the external N-channel MOSFET
No Connection.
Power Supply Input. Must be closely decoupled to PGND with a 4.7uF ceramic capacitor.
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
F U N C T I O N A L P I N D E S C R I P T I O N
Analog Mixed Signal Group
Microsemi
®
Multi-string LED Back-light Controller
Description
P
RODUCTION
D
ATASHEET
LX1996
Page 3