Datasheet

DS3881
Single-Channel Automotive CCFL Controller
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
28 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2007 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.
is a registered trademark of Dallas Semiconductor Corporation.
Heaney
INVERTER SUPPLY
VOLTAGE (V
INV
)
(8V TO 16V)
GA1
LAMP CURRENT MONITOR
CCFL LAMP
GB1
OVD1
V
CC
V
CC
V
CC
V
CC
BRIGHT
SVMH
LAMP BRIGHTNESS
TRANSFORMER
DUAL POWER
MOSFET
DEVICE
SUPPLY VOLTAGE
(5V ±5%)
OVERVOLTAGE DETECTION
LCM1
GND
LAMP FREQUENCY
INPUT/OUTPUT
LSYNC
SCL
SDA
I
2
C
CONFIGURATION
AND CONTROL PORT
FAULT
PSYNC
DPWM SIGNAL
INPUT/OUTPUT
LOSC
POSC
LCO
PDN
LAMP ON/OFF
LAMP CURRENT
OVERDRIVE ENABLE
SVML
A0
A1
HARDWARE
CONTROL
STEP LAMP
FREQUENCY
STEP
GND_S
R1
R2
R7
R9
R10
C2
C3
C7
R11
C8
R3
R4
R5
R6
C1
DS3881
Typical Operating Circuit
Chip Information
TRANSISTOR COUNT: 38,000
SUBSTRATE CONNECTED TO GROUND
Package Information
For the latest package outline information, go to
www.maxim-ic.com/DallasPackInfo
.
Revision History
Pages changed at Rev 1: 1, 19