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

Typical Operating Characteristics

(Refer to Figure 1 in the section “Typical Application Circuits”, VIN=3.6V, TA=25oC, 8WLEDs unless otherwise specified)

Switching Frequency vs. Supply Voltage

1.2

1.1

1

0.9

0.8

0.7

0.6

0.5

0.4

2.5 3 3.5 4 4.5 5 5.5 6

Supply Voltage, VIN (V)

Maximum Duty Cycle vs. Supply Voltage

100

90

80

70

60

50

40

2.5 3 3.5 4 4.5 5 5.5 6

Supply Voltage, VIN (V)

Operating Waveforms

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

fied )

Start-up

Start-up

1

VIN

2

VEN

VOUT

3

IIN, 0.1A/Div

4

8WLEDs, 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

1

VEN

VIN

2

VOUT

3

IIN, 0.1A/Div

4

6WLEDs, 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

Copyright © ANPEC Electronics Corp.

5

Rev. A.2 - Jan., 2008

www.anpec.com.tw

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