AAT3170_08 datasheet(6/15 Pages) ANALOGICTECH

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AAT3170

High Current LED Flash Driver Charge Pump IC

ChargePumpTM

PRODUCT DATASHEET

3170.2007.11.1.2

www .analogictech.com

AAT3170

High Current LED Flash Driver Charge Pump IC

ChargePumpTM

PRODUCT DATASHEET

3170.2007.11.1.2

www .analogictech.com

Typical Characteristics

VIN = 3.6V, CIN = 4.7μF, COUT = 2.2μF, C1 = C2 = 1μF, TA = 25°C, unless otherwise noted.

Load Characteristic

(VIN = 3.0V; 1.5X Mode; 50mA/ch Load)

Time (2µs/div)

VIN

(100mV/div)

VSINK

(200mV/div)

VOUT

(200mV/div)

Load Characteristic

(VIN = 3.6V; 1.5X Mode; 152mA/ch Load)

Time (2µs/div)

VIN

(100mV/div)

VSINK

(200mV/div)

VOUT

(200mV/div)

Load Characteristic

(VIN = 2.8V; 2X Mode; 152mA/ch Load)

Time (2µs/div)

VIN

(100mV/div)

VSINK

(200mV/div)

VOUT

(200mV/div)

Voltage Mode Line Regulation

Supply Voltage (V)

4.0

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2

IOUT = 10mA

IOUT = 80mA

IOUT = 120mA

IOUT = 30mA

Voltage Mode Load Regulation

Load Current (mA)

4.2

4.3

4.4

4.5

4.6

4.7

4.8

100

150

200

250

300

VIN = 4.2V

VIN = 3.7V

VIN = 3.3V

Flash Timer Duration

(CT = 0.1µF; Data = 1)

Supply Voltage (V)

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5

-40°C

25°C

85°C

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