MP3214 – 500mA LED CAMERA FLASH CHARGE PUMP

MP3214 Rev. 1.01

www.MonolithicPower.com

5

6/24/2011

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TYPICAL PERFORMANCE CHARACTERISTICS

100

150

200

250

300

350

400

450

500

550

0.02 0.04 0.06 0.08 0.1 0.12 0.14

1/RSET(1/KOHM)

Measurement

30

2.0

3.0

4.0

5.0

6.0

40

50

60

70

80

90

100

V_BATTERY(V)

IFlash=100mA

IFlash=200mA

IFlash=300mA

IFlash=500mA

-0.25

-0.20

-0.15

-0.10

-0.05

0.0

2.5 2.9 3.3 3.7 4.1 4.5 4.9 5.3 5.7

V_BATTERY(V)

Flash Current Regulation vs.

Battery Voltage:

Efficiency

Average Flash Current vs.

Dimming Duty Cycle

10

30

50

70

90

110

130

150

170

190

210

230

10 20 30 40 50 60 70 80 90 100

DUTY CYCLE(%)

V_Battery=2.7V

V_Battery=3.5V

V_Battery=2.7V

V_Battery=3.5V