AAT2846

High Current Charge Pump with Dual LDO for Backlight and Flash Applications

ChargePump

TM

PRODUCT DATASHEET

2846.2008.03.1.1

7

www .analogictech.com

AAT2846

High Current Charge Pump with Dual LDO for Backlight and Flash Applications

ChargePump

TM

PRODUCT DATASHEET

2846.2008.03.1.1

7

www .analogictech.com

Typical Characteristics

Turn On to 2X Mode Backlight

Time (200µs/div)

(200mA/div)

(500mV/div)

(2V/div)

(2V/div)

0V

0V

0V

0A

Turn Off from 1.5X Mode Backlight

(30mA/ch; Data 1)

Time (100µs/div)

(200mA/div)

(2V/div)

(2V/div)

0V

0V

0A

BENS, FENS High Threshold Voltage

vs. Input Voltage

Input Voltage (V)

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

25°C

85°C

-40°C

BENS, FENS Low Threshold Voltage

vs. Input Voltage

Input Voltage (V)

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

-40°C

25°C

85°C

BENS, FENS Latch Timeout vs. Input Voltage

Input Voltage (V)

25°C

80

100

120

140

160

180

200

220

240

260

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

-40°C

25°C

BENS, FENS Off Timeout vs. Input Voltage

100

140

180

220

260

300

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

-40°C

85°C

25°C