Diodes AP3031 Manual do Utilizador descarregar pdf

Data Sheet

Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing Limited

WHITE LED STEP-UP CONVERTER AP3031

General Description

The AP3031 is an inductor-based DC/DC boost con-

verter designed to drive LED arrays. 1.4A switching

current allows AP3031 to be used in different 7' to 10'

LCD panel backlights (3*13 LED arrays typically).

A constant frequency 1MHz PWM control scheme is

employed in this IC, which means tiny external com-

ponents can be used. Specifically, 1mm tall 4.7

μH

inductor and 0.47

μF output capacitor for the typical

application is sufficient.

The over output voltage protection is equipped in

AP3031, which protects the IC under open load condi-

tion. The AP3031 includes UVLO, soft-start, current

limit and OTSD to protect the circuit.

The AP3031 is available in standard SOT-23-6, TSOT-

23-6 and SOIC-8 packages.

Features

· Up to 92% Efficiency

=9V, I

OUT

=260mA)

· Up to 84% Efficiency

=5V, I

OUT

=260mA)

· Fast 1MHz Switching Frequency

· Wide Input Voltage Range: 2.7V to 16V

· Low 200mV Feedback Voltage

· Output Over Voltage Protection

· Cycle by Cycle Current Limit: 1.4A

· Built-in Soft-start

· Built-in Standby Mode to Achieve High Fre-

quency PWM Dimming

· Built-in Thermal Shutdown Function

· Under Voltage Lockout

Applications

· 7' to 10' LCD Panels

· Digital Photo Frame

· GPS Receiver

· EPC

· PDVD

Figure 1. Package Types of AP3031

SOT-23-6 TSOT-23-6 SOIC-8

1 2 3 4 5 6 ... 16 17

Resumo do Conteúdo

Página 1

Data Sheet1Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing LimitedWHITE LED STEP-UP CONVERTER

Página 2 - Pin Configuration

Data Sheet10Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing LimitedWHITE LED STEP-UP CONVERTER

Página 3 - Ordering Information

Data Sheet11Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing LimitedWHITE LED STEP-UP CONVERTER

Página 4

Data Sheet12Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing LimitedWHITE LED STEP-UP CONVERTER

Página 5 - Electrical Characteristics

Data Sheet13Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing LimitedWHITE LED STEP-UP CONVERTER

Página 6

Data Sheet14Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing LimitedWHITE LED STEP-UP CONVERTER

Página 7

Data Sheet15Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing LimitedWHITE LED STEP-UP CONVERTER

Página 8

Data Sheet16Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing LimitedWHITE LED STEP-UP CONVERTER

Página 9

IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the

Página 10 - ×13 LEDs, I

Data Sheet2Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing LimitedWHITE LED STEP-UP CONVERTER

Página 11 - Data Sheet

Data Sheet3Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing LimitedWHITE LED STEP-UP CONVERTER

Página 12 - Typical Application

Data Sheet4Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing LimitedWHITE LED STEP-UP CONVERTER

Página 13 - (Continued)

Data Sheet5Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing LimitedWHITE LED STEP-UP CONVERTER

Página 14 - SOT-23-6 Unit: mm(inch)

Data Sheet6Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing LimitedWHITE LED STEP-UP CONVERTER

Página 15 - TSOT-23-6 Unit: mm(inch)

Data Sheet7Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing LimitedWHITE LED STEP-UP CONVERTER

Página 16 - SOIC-8 Unit: mm(inch)

Data Sheet8Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing LimitedWHITE LED STEP-UP CONVERTER

Página 17

Data Sheet9Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing LimitedWHITE LED STEP-UP CONVERTER

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