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ViewSonic Corporation
Confidential - Do Not Cop VA1721wmb
OZ9938GN(IC801): The OZ9938 is high performance, cost-effective CCFL controller
designed for driving large-size LCD applications requiring 2 to 6 CCFLs.PWM
control, Has such functions as short-voltage protection, Over-voltage protection,
over-current protection and etc. The function of each pin and the circuit diagram
inside are as follows:
PIN Descriptions:
Pin Names Description
1 DRV1 Drive output
2 VDDA Supply voltage input
3 TIMER Timing capacitor to set striking time and shutdown delay time
4 DIM
Analog dimming or Internal LPWM dimming or external PWM pulse
input for dimming function
5 ISEN Current sense feedback
6 VSEN Voltage sense feedback
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