APW7136A データシートの表示（PDF） - Anpec Electronics

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APW7136A

1MHz, High-Efficiency, Step-Up Converter for 2 to 8 White LEDs

Anpec Electronics 

APW7136A/B/C

Operating Waveforms (Cont.)

(Refer to the application circuit in the section “Typical Application Circuits”, VIN=3.6V, TA=25oC, 8WLEDs unless otherwise speci-

fied )

Start-up

1

VIN

2

VEN

VOUT

3

IIN, 0.1A/Div

4

4WLEDs, L=22µH, VIN=3.6V, ILED=20mA

CH1: VEN, 2V/Div, DC

CH2: VIN, 2V/Div, DC

CH3: VOUT, 10V/Div, DC

CH4: IL, 0.1A/Div, DC

Time: 1ms/Div

Open-LED Protection

VOUT,10V/Div

1

APW7136C

CH1: VOUT, 10V/Div, DC

Time: 20ms/Div

Normal Operating Waveform

VLX, 20V/Div, DC

1

VOUT,50mV/Div,AC

2

3

IL, 0.1A/Div

8WLEDs, L=22µH, VIN=3.6V, ILED=20mA

CH1: VLX, 20V/Div, DC

CH2: VOUT, 50V/Div, AC

CH3: IL, 0.1A/Div, DC

Time: 1µs/Div

Copyright © ANPEC Electronics Corp.

6

Rev. A.2 - Jan., 2008

www.anpec.com.tw

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