Datasheet > 电源电路 > 开关式稳压器或控制器> ZXLD1322DCTC

ZXLD1322DCTC

更新时间： 2024-02-18 05:05:13

品牌	Logo	应用领域
捷特科 - ZETEX		转换器稳压器开关式稳压器或控制器电源电路开关式控制器驱动
页数	文件大小	规格书
18页	352K
描述
Buck/boost mode DC-DC converter for LED driving with 700mA output and current control

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技术参数
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ZXLD1322DCTC 技术参数

生命周期：	Transferred	包装说明：	HVSON,
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.67
Is Samacsys：	N	其他特性：	PFM CONTROL TECHNIQUE ALSO POSSIBLE
模拟集成电路 - 其他类型：	SWITCHING REGULATOR	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	15 V	最小输入电压：	2.5 V
标称输入电压：	4 V	JESD-30 代码：	R-XDSO-N14
长度：	4 mm	功能数量：	1
端子数量：	14	最高工作温度：	125 °C
最低工作温度：	-40 °C	最大输出电流：	3 A
封装主体材料：	UNSPECIFIED	封装代码：	HVSON
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
认证状态：	Not Qualified	座面最大高度：	0.9 mm
表面贴装：	YES	切换器配置：	BUCK-BOOST
最大切换频率：	600 kHz	温度等级：	AUTOMOTIVE
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	DUAL	宽度：	3 mm
Base Number Matches：	1

ZXLD1322DCTC 数据手册

ZXLD1322

Buck/boost mode DC-DC converter for LED driving

with 700mA output and current control

Description

The ZXLD1322 is an inductive DC-DC The feedback control circuitry inside the

converter, with an internal switch, designed ZXLD1322 provides excellent load and current

for driving single or multiple LEDs in series up regulation, resulting in very stable LED current

to a total of 700mA output current.

over the useful life of the battery and over the

full operating temperature range.

Applications cover input voltages ranging

from 2.5V to 15V. Depending upon supply The LED current can be adjusted from 100%

voltage and external components, this can down to 10% of the set value by applying a dc

provide up to 12W of output power.

voltage to the ADJ pin and down to 1% by

applying a PWM signal. An on-chip LED

protection circuit also allows output current to

be reduced linearly above a predetermined

threshold temperature using an external

thermistor at the TADJ pin.

The device employs a variable 'on' and 'off'

time control scheme with adjustable peak

switch current limiting and operates in Buck/

Boost mode, offering higher power efficiency

and lower system cost than conventional PFM

buck/boost circuitry.

External resistors set nominal average LED

current and coil peak current independently.

The device includes the DC-DC converter, a

high-side current monitor and an NPN The device can be shut down by applying a

switching transistor to provide an integrated continuous low level dc voltage to the ADJ pin.

solution offering small PCB size, competitive

cost/performance, high power efficiency of

DC-DC conversion and maximum LED

brightness/reliability. More importantly, it

retains design flexibility to add customer

specific features.

Features

Applications

•

2.5V to 15V Input Voltage Range

•

High power LED flashlights

LED back-up lighting

Up to 700mA output current

Typical efficiency >80%

General LED lighting

User-defined thermal control of LED

output current using external thermistor

•

High output current stability over input

voltage and temperature

•

12µA typical standby current

LED current adjustable from 100%

down to 2%

•

Adjustable Soft-Start

Capable of driving 3 LEDs in series

Note^#: Using standard external components as specified under electrical characteristics. Efficiency is dependent upon

external component types and values. Higher efficiency is possible with alternative coils.

Issue 1 - January 2008

www.zetex.com

12 3 4 5 6 7...18

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ZXLD1350	ZETEX	350mA LED driver with internal switch	获取价格
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ZXLD1350EV3	ZETEX	circuit diagram and bill of materials	获取价格
ZXLD1350Q	DIODES	AUTOMOTIVE COMPLIANT 350mA BUCK LED DRIVER	获取价格

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