Datasheet > SC620_07

SC620_07

更新时间： 2024-11-07 06:10:15

品牌	Logo	应用领域
商升特 - SEMTECH		驱动器
页数	文件大小	规格书
18页	248K
描述
Octal LED Driver, General Purpose Current Sink with Serial Interface

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SC620_07 数据手册

SC620

Octal LED Driver, General Purpose

Current Sink with Serial Interface

POWER MANAGEMENT

Features

Description

The SC620 is a multi-purpose LED driver with eight identi-

cal, independently controlled current sinks. Each current

sink can drive an LED by connecting the LED’s anode to

the system power supply and the cathode to the current

sink input pin. Any combination of outputs can be enabled

or disabled for optimal design ﬂexibility.

Wide current setting range — 31.25μA to 25mA

Eight identical current drivers with independent

control

5% current matching, 7% accuracy

I²C interface for microprocessor control

I²C slave address 1110 000x

Less than 1μA quiescent current in shutdown

Low dropout voltage — ≤ 150mV

Over-temperature protection

MLPQ-UT-16 package (3mm x 3mm)

Ultra-thin 0.6mm maximum package height

Fully WEEE and RoHS compliant

The SC620 also employs an adjustable global current gain

setting register to allow the current setting step size to

vary from 31.25μA to 500μA. This provides a wide range of

options for LED variation and dimming functions. The

maximum output is also scaled by this step size, with a

maximum of 25mA at the highest step setting.

Applications

Multi-colored and white LEDs with diﬀerent forward volt-

ages can be driven using the same SC620 due to its ﬂoat-

ing cathode technology. This feature allows each output

pin to vary in voltage from 150mV to V_IN- 1.5V.

LCD backlighting LED driver

Multicolor and RGB LED driver

General purpose current sink array

General purpose digital output (open-drain) expander

Auto-focus voice-coil driver

All current control is programmed using an I²C interface

bus. Only a single input bypass capacitor is required — no

other external resistors or capacitors are needed. The 3mm

x 3mm MLPQ package and minimal support components

make the SC620 an ideal solution for low-cost, area-con-

scious backlighting designs.

Typical Application Circuit

LED Backlighting

Main Panel

Sub Panel

Color/R/G/B LEDs

Battery

1μF

SC620

ILED1

ILED2

ILED3

ILED4

ILED5

ILED6

ILED7

ILED8

SCL

SDA

SCL

SDA

GND

December 19, 2007

12 3 4 5 6 7...18

中文翻译

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与SC620_07相关器件

型号	品牌	获取价格	描述	数据表
SC620_09	SEMTECH	获取价格	Octal LED Driver,General Purpose Current Sink With Serial Interface
SC620EVB	SEMTECH	获取价格	Octal LED Driver, General Purpose Current Sink with Serial Interface
SC620ULTRT	SEMTECH	获取价格	Octal LED Driver, General Purpose Current Sink with Serial Interface
SC621	SEMTECH	获取价格	LED Light Management Unit Charge Pump, 4 LEDs, 400mA Flash LED, Dual LDOs, and SemWireTM I
SC621_09	SEMTECH	获取价格	LED Light Management Unit Charge Pump,4 LEDs, 400mA Flash LED Dual LDOs,and SemWire Interf
SC621A	SEMTECH	获取价格	Charge Pump, 4 LEDs, 400mA Flash LED, Dual LDOs, and I2C Interface
SC621A_09	SEMTECH	获取价格	LED Light Management Unit Charge Pump, 4 LEDs, 400mA Flash LED, Dual LDOs, and I2C Interfa
SC621AEVB	SEMTECH	获取价格	Charge Pump, 4 LEDs, 400mA Flash LED, Dual LDOs, and I2C Interface
SC621AULTRT	SEMTECH	获取价格	Charge Pump, 4 LEDs, 400mA Flash LED, Dual LDOs, and I2C Interface
SC621EVB	SEMTECH	获取价格	LED Light Management Unit Charge Pump, 4 LEDs, 400mA Flash LED, Dual LDOs, and SemWireTM I

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