Datasheet > ELM901F

ELM901F

更新时间： 2024-09-14 01:12:11

品牌	Logo	应用领域
ELM		/
页数	文件大小	规格书
11页	1117K
描述
1A 2x Charge Pump LED Driver

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中文翻译

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数据手册

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ELM901F 数据手册

1A 2x Charge Pump LED Driver

ELM901FxA

■General description

ELM901FxA is a high current LED driver with internal automatic mode switch pump circuit of pass-through

mode (1x mode) and boost charge mode (2x mode) and constant current drive circuit; maximum output current

of ELM901 series can reach 1A. ELM901 series is ideally suited for high luminosity white LED electrical

applications which are powered by 1-cell lithium-ion/polymer battery. The required external parts of ELM901

series can be limited to the minimum of 3 capacitors and 3 programming resistors. With 4mm x 4mm & 3mm x

3mm QFN package, ELM901 series is possible to be assembled within limited space.

The sink current, which can be switched to 3 different kinds by enable signal during operation,of LED pin is

set by external programming resistors. For LED protection, it is possible to set high current lighting timer with

external resistor; the light will be turned off forcibly by timer (3 options among 0.2 sec. to 1 sec.).

Built-in soft-start circuitry makes ELM901 series be able to limit excessive power during start-up and switch

of 1x & 2x mode.

■Features

■Application

• Low voltage operation

• Low power operation

• Low standby current

• Large output current

• LED protection

: 2.6V-4.4V

• Camera light supply

: 300μA(1x), 9mA(2x)

: Max.1μA

• High luminosity LED ﬂashlight

: Max.1A

: high current lightening timer

• Internal LED constant current circuit

: external resistance program

• Soft-start

• Package

: LED current start and switch of 1x & 2x mode

: QFN16-4x4,

QFN16-3x3(under development)

• Thermal shutdown function included

■Maximum absolute ratings

Parameter

VIN voltage

VO voltage

EN1,EN2 voltage

VO current, LED current

Operating temperature

Storage temperature

Symbol

Vin

Ven

Io, Iled

Top

Tstg

Limit

Unit

GND-0.3 to 6

GND-0.3 to Vin+0.3

1500 *

-40 to +85

-40 to +125

°C

Based on long-term current denslty limitations. Assumes an operating duty cycle of ≤ 10% under absolute maximum conditions for

durations less than 10 seconds. Max current for continuous operation is 600mA.

■Selection Guide

ELM901FxA-S

Symbol

Package

F: QFN

A: QFN16-4x4

B: QFN16-3x3(under development)

ELM901 F x A - S

↑ ↑ ↑ ↑

Package type

a b c d

Product version

Taping direction

S: Refer to PKG file

11 - 1

12 3 4 5 6 7...11

中文翻译

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与ELM901F相关器件

型号	品牌	获取价格	描述	数据表
ELM901FAA-S	ELM-TECH	获取价格	1A 2x Charge Pump LED Driver
ELM901FBA-S	ELM-TECH	获取价格	1A 2x Charge Pump LED Driver
ELM901F-SERIES	ELM	获取价格	1A 2x Charge Pump LED Driver
ELM901FXA	ELM	获取价格	Charge Pump LED Driver
ELM91181AA-N	ELM-TECH	获取价格	CMOS PFM Step-up DC/DC converter and controller
ELM91181AA-S	ELM-TECH	获取价格	CMOS PFM Step-up DC/DC converter and controller
ELM91181BA-N	ELM-TECH	获取价格	CMOS PFM Step-up DC/DC converter and controller
ELM91181BA-S	ELM-TECH	获取价格	CMOS PFM Step-up DC/DC converter and controller
ELM91181CA-N	ELM-TECH	获取价格	CMOS PFM Step-up DC/DC converter and controller
ELM91181CA-S	ELM-TECH	获取价格	CMOS PFM Step-up DC/DC converter and controller

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