DS3881E Maxim Integrated Products, DS3881E Datasheet - Page 28

• Manufacturer Part Number: DS3881E
• Description: Single-channel Automotive CCFL Controller
• Manufacturer: Maxim Integrated Products

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
© 2006 Maxim Integrated Products
Single-Channel Automotive CCFL Controller
TRANSISTOR COUNT: 38,000
SUBSTRATE CONNECTED TO GROUND
Heaney
HARDWARE
CONTROL
____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
AND CONTROL PORT
CONFIGURATION
I
2
C
is a registered trademark of Dallas Semiconductor Corporation.
OVERDRIVE ENABLE
LAMP BRIGHTNESS
LAMP FREQUENCY
LAMP CURRENT
INPUT/OUTPUT
R9
INPUT/OUTPUT
DPWM SIGNAL
LAMP ON/OFF
FREQUENCY
STEP LAMP
R11
R1
V
V
CC
CC
R2
R10
V
CC
PSYNC
LSYNC
LOSC
POSC
SDA
SCL
A0
A1
GND_S
FAULT
Chip Information
LCO
PDN
BRIGHT
STEP
DS3881
Printed USA
SVMH
LCM1
SVML
OVD1
GND
V
GA1
GB1
CC
SUPPLY VOLTAGE
(5V ±5%)
DEVICE
DUAL POWER
MOSFET
C7
C8
For the latest package outline information, go to
www.maxim-ic.com/DallasPackInfo.
is a registered trademark of Maxim Integrated Products, Inc.
R3
R5
R4
R6
INVERTER SUPPLY
VOLTAGE (V
(8V TO 16V)
Typical Operating Circuit
OVERVOLTAGE DETECTION
LAMP CURRENT MONITOR
INV
TRANSFORMER
)
Package Information
C1
C2
C3
CCFL LAMP
R7