DS3991Z+PP Maxim Integrated Products, DS3991Z+PP Datasheet - Page 7

• Manufacturer Part Number: DS3991Z+PP
• Description: IC CTRLR CCFL PUSH-PULL 16-SOIC
• Manufacturer: Maxim Integrated Products
• Type: CCFL Controllerr

Specifications of DS3991Z+PP

• Frequency: 40 ~ 80 kHz
• Current - Supply: 5mA
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / Rohs Status: Details

LAMP FREQUENCY SET
BRIGHTNESS CONTROL
BRIGHTNESS CONTROL
EXTERNAL RESISTOR
EXTERNAL RESISTOR
BURST-DIMMING
FREQUENCY SET
ANALOG LAMP
(PWM_EN = 0)
(PWM_EN = 1)
PWM LAMP
PWM_EN
BRIGHT
SLOPE
_______________________________________________________________________________________
LOSC
POSC
OSCILLATOR (±5%)
OSCILLATOR (±5%)
NEGATIVE SLOPE
40kHz TO 80kHz
80Hz TO 300Hz
POSITIVE OR
SELECT
DS3991
GENERATOR
RAMP
Low-Cost CCFL Controller
HANDLING
ENABLE/
SYSTEM
FAULT
POR
CHANNEL ENABLE
CHANNEL FAULT
80Hz TO 300Hz
Main System Block Diagram
MUX
SIGNAL
DPWM
2.0V
2.0V
CCFL CHANNEL
CONTROLLER
DIAGRAM)
(SEE THE
UVLO
VREF
BLOCK
CCFL
VCC (4.5V TO 5.5V)
SVML
SUPPLY VOLTAGE
MONITOR LOW
SVMH
SUPPLY VOLTAGE
MONITOR HIGH
LCM
LAMP CURRENT
MONITOR
OVD
OVERVOLTAGE
DETECTION
GA
GB
GND
MOSFET
GATE DRIVERS
7