AAT3195 datasheet(6/16 Pages) AAT

Part #	AAT3195

Description	4-Channel Charge-Pump LED Driver

Download	16 Pages

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Manufacturer	AAT [Advanced Analog Technology, Inc.]

Direct Link	http://www.aatech.com.tw

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AAT3195

4-Channel Charge-Pump LED Driver

ChargePumpTM

PRODUCT DATASHEET

6

3195.2008.09.1.0

www .analogictech.com

AAT3195

4-Channel Charge-Pump LED Driver

ChargePumpTM

PRODUCT DATASHEET

6

3195.2008.09.1.0

www .analogictech.com

Typical Characteristics

Quiescent Current vs. Input Voltage

Input Voltage (V)

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

0.18

0.19

0.20

0.21

0.22

0.23

0.24

0.25

0.26

°

85°C

25°C

-40°C

No Load Operating Current vs. Input Voltage

Input Voltage (V)

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

2.0

2.5

3.0

3.5

4.0

4.5

85°C

25°C

-40°C

AAT3195-2 Efficiency vs. Input Voltage

(ILED = 20mA; VF = 3.6V)

Input Voltage (V)

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

20%

30%

40%

50%

60%

70%

80%

90%

100%

Current Matching vs. Temperature

Temperature (°C)

-40

-15

10

35

60

85

19.0

19.5

20.0

20.5

21.0

21.5

22.0

D1

D2

D3

D4

Turn On to 1X Mode

(VIN = 4.2V; 20.5mA/ch)

Time (200µs/div)

VOUT

(2V/div)

VSINK

(2V/div)

EN/SET

(2V/div)

IIN

(200mA/div)

Turn On to 2X Mode

(VIN = 3.6V; 20.5mA/ch)

Time (200µs/div)

VOUT

(2V/div)

VSINK

(2V/div)

EN/SET

(2V/div)

IIN

(200mA/div)

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