Diodes AP3041 User Manual download pdf

Data Sheet

Boost Controller for WLED Driver in Medium-sized LCD Panel AP3041

Oct. 2012 Rev. 1. 2 BCD Semiconductor Manufacturing Limited

General Description

The AP3041 is a current mode high voltage low-side

channel MOSFET controller, which is ideal for boost

regulators. It contains all the features needed to

implement single-ended primary topology DC/DC

converters.

The input voltage of AP3041 ranges from 5V to 27V.

Its operation frequency is adjustable from 100kHz to

1MHz.

The AP3041 has UVLO (Under Voltage Lock Out)

circuit. It uses two external resistors to set the UVLO

voltage. The AP3041 also has an over output voltage

protection to limit the output voltage. The OVP

voltage can be set through external resistors. If the

output voltage is higher than the OVP high threshold

point, it will disable the driver and the system is

latched up. The output short circuit protection as well

as LED low side short to ground detection function

can be applied in system.

The AP3041 has other protection functions, such as

LED short protection, LED high side short to ground

protection, diode short protection, over current

protection, over temperature protection and so on.

The AP3041 is available in SOIC-16 package.

Features

• Input Voltage Range: 5V to 27V

• 1A Peak and 10V MOSFET Gate Driver

• 20ns Quick MOSFET Gate Driver

• Duty Cycle Limit of 90%

• Programmable UVLO

• PWM Dimming Control

• Programmable Over Voltage Protection

• LED Open Protection

• LED Short Circuit Protection

• Diode Short Circuit Protection

• Output Short Circuit Protection

• LED Low-side Short to Ground Detection

• OV Pin Under Voltage Protection

• Over Current Protection

• Programmable Slope Compensation

• Adjustable Soft-start

• Adjustable Protection Delay

• Fault Status Indication

• Adjustable Operation Frequency from 100kHz to

1MHz

• Over Temperature Protection

Applications

• LED Lighting

• LED TV

• LCD Display Modules

Figure 1. Package Type of AP3041

SOIC-16

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