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OZT1060: It is a unique, high-efficiency, Cold Cathode Fluorescent Lamp (CCFL) backlight inverter controller
that is designed for wide input voltage inverter applications. Additionally, the 0Z1060 performs the lamp dimming
function with an analog voltage or low frequency Pulse Width Modulation (PWM) control. The OZ1060 operates
at a single, constant frequency in a phase-shift PWM mode. Intelligent open-lamp and over-voltage protections
provide design flexibility so various transformer models/manufactures may be used. The built-in burst mode
control provides a wide dimming range and simplifies the application circuit designs. Both operating and
burst-mode frequencies are user-programmable parameters. The function of each pin and the circuit diagram
inside are as follows:
Names Pin No. I/O Description
CTIMR 1 I Capacitor for CCFL ignition duration
OVP 2 I Over Voltage Protection Input Vth=2.0V
ENA 3 I Enable input, TTL signal is applicable
SST 4 I Soft-start capacitor
VDDA 5 I Voltage source for the IC
GNDA 6 I Analog signal ground reference
REF 7 O Reference voltage output
RT1 8 I Resistor for programming ignition frequency
FB 9 I CCFL current feedback signal
CMP 10 O Compensation output of the current error amplifier
NDRV_D 11 O NMOSFET drive output
PDRV_C 12 O PMOSFET drive output
LPWM 13 O Low-frequency PWM signal for burst-mode dimming control
DIM 14 I Input analog signal for burst-mode dimming control
LCT 15 I Triangular wave for burst-mode dimming frequency
PGND 16 I Power ground reference
RT 17 I Timing resistor set operating frequency
CT 18 I Timing capacitor set operating frequency
PDRV_A 19 O PMOSFET drive output
NDRV_B 20 O NMOSFET drive output
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