MP3356 – HIGH VOLTAGE PHOTO FLASH CHARGER AND IGBT DRIVER FOR DSC

MP3356 Rev. 0.91

www.MonolithicPower.com

3

1/29/2010

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ELECTRICAL CHARACTERISTICS

Parameter

Conditions

Min

Typ

Max

Unit

Photoflash Capacitor Charger

2.8

6

V

Rising edge, hysteresis =

200mV

typical

2.5

V

V(EN)=High, V(FB) = 0

1

2

mA

V(EN)=High, V(FB) = 336V

100

µA

1

µA

1

µA

SW ON Resistance between SW

and PGND

0.5

Ω

EN Input High Voltage

2.4

V

EN Input Low Voltage

0.6

V

Pull-down Resistance of EN pin

V(EN)=3.6V

100

k

Ω

Peak Current Limit

1.2

1.5

1.7

A

Charge completion detect voltage

at FB

294

302

310

V

FB Resistance

V(FB)=30V

315

k

Ω

DCM Comparator threshold

5

V

V(PG)=3.6V

1

µA

0.1

V

70

µS

Thermal Shutdown

Rising edge, hysteresis = 15

150

IGBT Driver

IGBTOUT pull-up ON resistance

6

Ω

IGBTOUT

pull-down

ON

resistance

6

Ω

IGBTIN Input High Voltage

2.4

V

IGBTIN Input Low Voltage

0.6

V

Propagation delay

IGBTIN

rising/falling

edge

to

IGBTOUT

rising/falling

edge,

Cgate=6800pF

40

nS

IGBTOUT rise time

Cgate=6800pF

130

nS

IGBTOUT fall time

Cgate=6800pF

180

nS

Pull down resistance of IGBTIN

90

k

Ω