Datasheet > BL0202C

BL0202C

更新时间： 2024-11-14 01:08:47

品牌	Logo	应用领域
三垦 - SANKEN		/
页数	文件大小	规格书
26页	614K
描述
High Efficiency For LED Backlight 2ch LED Driver IC

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中文翻译

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数据手册

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BL0202C 数据手册

High Efficiency

For LED Backlight 2ch LED Driver IC

BL0200 Series

General Descriptions

Package

BL0200 series are 2ch output LED driver IC for LED

backlight, and it can do dimming to 0.02 % by external

PWM signal.

SOP18

This IC realizes a high efficiency by the boost

convertor control that absorbs variability on V_F.

The product easily achieves high cost-performance

LED drive system with few external components and

enhanced protection functions.

Not to scale

Features and Benefit

Boost convertor

Lineup

● Current-Mode type PWM Control

● PWM frequency is 100 kHz or 200 kHz

● Maximum On Duty is 90 %

V_REG

Accuracy

Products

Frequency

Built-in Function

BL0202C

BL0202B

BL0200C

200 kHz

100 kHz

200 kHz

Enable Function of

± 1.5 %

± 2 %

LED current control

● Individual PWM Dimming Control

● Analog Dimming

Error Signal Output

● High contrast ratio is 1 / 5000

● Accuracy of Reg output voltage is ± 1.5 % or ± 2 %

Applications

Protection functions

● Enable Function of IC (BL0202B, BL0202C)

● Error Signal Output (BL0200C)

● LED backlights

● LED lighting etc.

● Overcurrent Protection for Boost Circuit (OCP)

----------------------------------------------Pulse-by-pulse

● Overcurrent Protection for LED Output (LED_OCP)

----------------------------------------------Pulse-by-pulse

● Overvoltage Protection (OVP) ----------- Auto restart

● Output Open/Short Protection------------ Auto restart

● Thermal Shutdown (TSD)----------------- Auto restart

Typical Application Circuit

BL0202B/C

DRV1

VCC

BL0200C

DRV1

VCC

VREF

PWM1

PWM2

VREF

PWM1

PWM2

OC1

SW1

IFB1

SW1

IFB1

DRV2

OC2

DRV2

OC2

REG

OVP

SW2

OVP

SW2

COMP1

COMP2

COMP1

COMP2

GND

IFB2

TC_BL0202_1_R1

TC_BL0200C_1_R1

BL0200-DS Rev.2.3

May. 15, 2014

SANKEN ELECTRIC CO.,LTD.

12 3 4 5 6 7...26

中文翻译

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