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AP3068 Datasheet, PDF (1/15 Pages) BCD Semiconductor Manufacturing Limited – WHITE LED DRIVER FOR LCD PANEL BACKLIGHT | |||
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Preliminary Datasheet
WHITE LED DRIVER FOR LCD PANEL BACKLIGHT
AP3068
General Description
The AP3068 is a white LED (WLED) driver with
current balancing and dimming functions. It consists
of a boost controller and 8-channel current sinks to
drive WLED arrays with constant current from a
wide power supply range. It can be used in middle
and large-sized LCD panel backlight.
The full-scale LED current can be adjusted from
5mA to 100mA simply via a resistor. The 8 channels
can be paralleled for higher current application. The
AP3068 can support direct PWM dimming.
The AP3068 features LED open/short protection,
Under Voltage Lockout (UVLO) protection, over
output voltage protection and Over Temperature
Protection (OTP).
The AP3068 is available in TSSOP-281(EDP)
package.
Features
⢠Input Voltage Range: 6V to 27V
⢠Maximum Duty Cycle: 93%
⢠Maximum Channel Current: 100mA
⢠Current Matching Accuracy: ±1.5%
⢠Adjustable Operating Frequency: 200kHz to
⢠1MHz
⢠Cycle-by-cycle Current Limit
⢠Unused LED Channel Auto-detection
⢠Open/Short LED Protection
⢠Programmable Soft-start
⢠Programmable UVLO Protection
⢠Programmable OVP
⢠Over Temperature Protection
⢠FBX and SDBX Pins Enable Parallel
⢠Application with AP3608E
Applications
⢠LCD Monitor
⢠LCD Display Module
⢠LCD TV
TSSOP-28 (EDP)
Figure 1. Package Type of AP3068
May. 2010 Rev. 1.3
BCD Semiconductor Manufacturing Limited
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