Datasheet > ZLED7010

ZLED7010

更新时间： 2024-11-27 01:10:51

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
22页	900K
描述
40V LED Driver with Temperature Compensation

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中文翻译

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ZLED7010 数据手册

ZLED7010

40V LED Driver with

Datasheet

Temperature Compensation

Brief Description

Features

• Capable of 95% efficiency*

The ZLED7010, one of our ZLED Family of LED control

ICs, is an inductive step-down converter that is optimal

for driving a single LED or multiple LEDs (connected in

series) from a voltage source greater than the voltage

rating of the LED. The ZLED7010 operates in continu-

ous mode. Capable of operating efficiently with voltage

supplies ranging from 6 VDC to 40 VDC, it is ideal for

low-voltage lighting applications. The ZLED7010 mini-

mizes current consumption by remaining in a low-current

standby mode (output is off) until a voltage of ≥0.3V is

applied to the ADJ_Ipin.

• Operates in continuous mode with a wide input

range from 6 VDC to 40 VDC

• Integrated 40V power switch

• One-pin on/off or brightness control via DC voltage

or PWM control signal

• Switching frequency: ≤ 1MHz

• Dimming rate: 1200:1 (typical)

• Output current accuracy: 5% (typical)

• Built-in temperature compensation and open-circuit

protection for LEDs

In operating mode, the ZLED7010 can source LEDs with

an output current of ≤ 750mA (≤ 30 watts of output

power*) that is externally adjustable. The ZLED7010’s

integrated output switch and high-side current sensing

circuit use an external resistor to adjust the average out-

put current. LED control is achieved via an external con-

trol signal at the ZLED7010’s ADJ_Ipin, implemented as

a pulse-width modulation (PWM) waveform for a gated

output current or a DC voltage for continuous current.

• Thermal shutdown protection for the ZLED7010

• Very few external components needed for operation

• Broad range of applications: outputs up to ≤750mA

• SOP-8 package

The ZLED7010 provides a temperature compen-

sation function for maintaining stable and reliable

LED operation. LED over-temperature conditions

are detected via a negative temperature coefficient

(NTC) thermistor mounted close to the LEDs. If an

over-temperature condition occurs, the NTC value

reaches the value of a threshold resistor and the

IC reduces LED current automatically. After the

circuit recovers to a safe temperature, current

returns to the set value.

Application Examples

• Illuminated LED signs and other displays

• LED traffic and street lighting (low-voltage)

• Architectural LED lighting, including low-voltage

applications for buildings

• Halogen replacement LEDs (low-voltage)

• LED flood-lighting

• LED backlighting

• General purpose exterior and interior LED lighting,

including applications requiring low-voltage

ADJ_Ooutputs and ADJ_Iinputs of consecutive ICs

can be interconnected as a driver chain deploying

the temperature compensation information of the

predecessor. This reduces the part count because

only the first stage of the series requires an NTC.

• General purpose low-voltage industrial applications

ZLED7010 Application Circuit

6 to 40 VDC

R_S

V_S

n LED

1μF

NTC

V_IN

R_NTC

I_SENSE

ZLED7010

R_TH

ADJ_I

47μH

100nF

ADJ_O

GND

50k

* See section 2.3 and 1.4 for details

April 20, 2016

12 3 4 5 6 7...22

中文翻译

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与ZLED7010相关器件

型号	品牌	获取价格	描述	数据表
ZLED7010KIT-D1	IDT	获取价格	40V LED Driver with Temperature Compensation
ZLED7010ZI1R	IDT	获取价格	40V LED Driver with Temperature Compensation
ZLED7010-ZI1R	ETC	获取价格	40V LED Driver with Temperature Compensation
ZLED7012	IDT	获取价格	Low-Voltage Four-Channel LED Driver
ZLED7012KIT-E1	IDT	获取价格	Low-Voltage Four-Channel LED Driver
ZLED7012ZI1R	IDT	获取价格	Low-Voltage Four-Channel LED Driver
ZLED7012-ZI1R	ETC	获取价格	Low-Voltage Four-Channel LED Driver
ZLED7015	IDT	获取价格	1.0MHz Boost Converter
ZLED7015KIT-E1	IDT	获取价格	1.0MHz Boost Converter
ZLED7015ZI1R	IDT	获取价格	1.0MHz Boost Converter

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