MAX16803_09 Datasheet, PDF (10/11 Pages) Maxim Integrated Products – High-Voltage, 350mA, High-Brightness LED Driver with PWM Dimming and 5V Regulator

High-Voltage, 350mA, High-Brightness LED
Driver with PWM Dimming and 5V Regulator
Multichannel HB LED Driver
Figure 8 shows an array of MAX16803s with independent
DIM control. The MAX5094C, a current-mode PWM con-
troller, provides the input power to each LED driver pre-
regulated voltage to multiple MAX16803 drivers.
VIN
CREF
C2
CCOMP
RCOMP
REF
VCC
MAX5094C
COMP
OUT
FB
GND
CT/RT
CS
CT
L1
D1
C3
IN
OUT
IN
OUT
IN
OUT
R3
U2
U4
U3
LEDs
LEDs
LEDs
Q1
C4
EN MAX16803 V5
C7
C6
EN MAX16803 V5
C11
C10
EN MAX16803 V5
C9
C8
DIM
CS+
DIM
CS+
DIM
CS+
R5
R7
R6
R4
GND
CS-
R2
GND
CS-
GND
CS-
Figure 8. Multichannel HB LED Driver for LCD Backlight
Typical Operating Circuit
Chip Information
PROCESS: BiCMOS
VDIM
VIN
C1
16 15 14 13
OUT EN N.C. DIM
1 OUT
GND 12
2 IN
3 IN
MAX16803
V5 11
CS- 10
4 N.C.
CS+ 9
N.C. N.C. N.C. N.C.
5
6
7
8
D1
C2
RSENSE
Package Information
For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages.
PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
16 TQFN-EP
T1655-3
21-0140
10 ______________________________________________________________________________________