AL8812 datasheet(5/11 Pages) DIODES

Part #	AL8812

Description	BOOST - BUCK DC-DC CONVERTER FOR DIMMABLE MR16 LED LAMPS

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Manufacturer	DIODES [Diodes Incorporated]

Direct Link	http://www.diodes.com

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5 / 11 page

AL8812

Document number: DS37099 Rev. 1 - 2

5 of 11

www.diodes.com

March 2014

AL8812

0. 1

1

10

0.1

1

10

0.1

1

10

0.1

1

10

23

45

0.1

1

10

-5 0

0

50

10 0

150

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

11 0

0.1

1

0.4

0.6

0.8

1.0

1.2

0.1

1

10

4V

10V

5V

3.5V

2.5V

Output Characteristics

T = 25°C

3V

V

GS

V

DS D rain-Source Voltage (V )

2V

2.5V

4V

10V

5V

3V

Output Char acteris tics

T = 150°C

V

GS

3.5V

V

DS

Drain-Sourc e Voltage (V)

Typical Transfer Characte ristics

V

DS = 10V

T = 25°C

T = 150°C

V

GS G a te -S o urce V o ltag e (V )

Norm alised Curves v Tem perature

R

DS (on )

V

GS = 10V

I

D = 2.5A

V

GS ( th)

V

GS = V DS

I

D = 250uA

Tj Junction Tem perature (°C)

4.5V

4V

5V

3.5V

On-Resistance v Drain Cur rent

T = 25°C

3V

10V

V

GS

I

D

Drain Current (A)

T = 150°C

T = 25°C

Source-Drain Diode Forw ard Voltage

V

SD

Source-Drain Voltage (V)

110

0

100

200

300

400

500

C

RSS

C

OSS

C

ISS

V

GS = 0V

f = 1MHz

V

DS - Drain - Source Voltage (V)

012345

6

0

2

4

6

8

10

I

D = 2.5A

V

DS = 30V

Gate-Source Voltage v Gate Charge

Capacitance v Drain-Source Voltage

Q - Charge (nC)

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