DS3991Z+T&R/PPV Maxim Integrated Products, DS3991Z+T&R/PPV Datasheet - Page 14

• Manufacturer Part Number: DS3991Z+T&R/PPV
• Description: Display Drivers Low-Cost CCFL Contro ller All N-FET Drive
• Manufacturer: Maxim Integrated Products

Specifications of DS3991Z+T&R/PPV

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Low-Cost CCFL Controller
14
______________________________________________________________________________________
LAMP FREQUENCY
BURST-DIMMING
SUPPLY VOLTAGE
RESISTOR SET
RESISTOR SET
ANALOG LAMP
FREQUENCY
BRIGHTNESS
(5V ±10%)
CONTROL
DEVICE
VCC
VCC
VCC
VCC
BRIGHT
PWM_EN
SLOPE
LOSC
POSC/PWM
GND
DS3991
SVMH
SVML
LCM
OVD
GA
GB
OFF/RESET = CLOSED
DUAL POWER MOSFET
ON = OPEN
Typical Push-Pull Application, Multiple Lamps Per Channel
+5V
+5V
+5V
Typical Operating Circuits (continued)
2N3904
2N3904
2N3904
INVERTER SUPPLY VOLTAGE
(5V ±10% TO 24V ±10%)
CCFL
LAMP
A
CCFL
LAMP
B
CCFL
LAMP
C