Datasheet > ZLED7000ZI1R

ZLED7000ZI1R

更新时间： 2022-02-26 11:50:46

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
18页	564K
描述
40V LED Driver with Internal Switch

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ZLED7000ZI1R 数据手册

ZLED7000

40V LED Driver with Internal Switch

Datasheet

Brief Description

Features

The ZLED7000, 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 ZLED7000 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 ZLED7000

minimizes current consumption by remaining in a low-

current standby mode (output is off) until a voltage of

≥0.3V is applied to the ADJ pin.

• Capable of up to 95% efficiency*

• 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 PWM or DC

voltage control signal input

• Switching frequency: ≤ 1MHz

• Dimming rate: 1200:1 (typical)

• Output current accuracy: 5% (typical)

• Built-in thermal shutdown and open-circuit protection

In operating mode, the ZLED7000 can source LEDs with

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

power) that is externally adjustable.* The ZLED7000’s

integrated output switch and high-side current sensing

circuit use an external resistor to adjust the average

output current. Linearity is achieved via an external

control signal at the ZLED7000’s ADJ pin, implemented

either as a pulse-width modulation (PWM) waveform for

a gated output current or a DC voltage for a continuous

current.

for LED

• Very few external components needed for operation

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

• SOT89-5 package

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 backlighting

• General purpose exterior and interior LED lighting,

including applications requiring low-voltage

• General purpose low-voltage industrial applications

ZLED7000 Application Circuit

6 to 40 VDC

R_S

V_S

n LED

1μF

V_IN

I_SENSE

ZLED7000

ADJ

GND

47μH

^*See section 2.3 and 1.4 for details

April 20, 2016

12 3 4 5 6 7...18

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