MP3352 – 60V, 2.5A INTEGRATED PHOTO FLASH CHARGER WITH IGBT DRIVER AND QUENCH
MP3352 Rev. 0.9 www.MonolithicPower.com 2
11/12/2008 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2008 MPS. All Rights Reserved.
PACKAGE REFERENCE
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8765
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Part Number* Package Temperature
MP3352DQ QFN16-3
–40°C to +85°C
*
For Tape & Reel, add suffix –Z (e.g. MP3352DQ–Z)
For RoHS compliant packaging, add suffix –LF (e.g.
MP3352DQ–LF–Z)
ABSOLUTE MAXIMUM RATINGS
(1)
V
IN
to GND ........................................-0.3V to 6V
CHARGE, ISET, IGBTIN, RDYB, QREF, QSNS
to GND.............................................. -0.3V to 6V
FB to GND ........................................-0.3V to 6V
SW to GND.....................................-0.3V to 60V
Maximum Operating Frequency .............400kHz
Operating Temperature Ranges:-40°C to +85°C
Storage Temperature ...............-55°C to +150°C
Junction Temperature.............................+150°C
Lead Temperature (Solder) ....................+260°C
Thermal Resistance
(2)
θ
JA
θ
JC
QFN16 (3mmx3mm)............... 50 ...... 12... °C/W
Notes:
1) Exceeding these ratings may damage the device.
2) Measured on approximately 1” square of 1 oz copper.
ELECTRICAL CHARACTERISTICS
(V
IN
=V (CHARGE)=3.3V, TA = +25°C, unless otherwise noted.)
Parameter Conditions Min Typ Max Unit
Photoflash Capacitor Charger
V
IN
Voltage Range
3 6 V
V
IN
UVLO Rising edge, hysteresis = 200mV 2.7 2.8 2.9 V
V
IN
Quiescent Current V(CHARGE)=High, V(SW) = 0,
free run by T
ONMAX
1 2 mA
V
IN
Quiescent Current Charge Complete,
V(CHARGE)=High, V(FB) = 1.3V
50 µA
Shutdown Current from V
IN
V(CHARGE)=Low 1 µA
V
SW
Leakage Current V
IN
=3.3V,V
SW
=60V, in Shutdown 2 µA
SW ON resistance between
SW and GND
Switch turn-on
0.2
Ω
Charge Input High Voltage 2.4 V
Charge Input Low Voltage 0.6 V
Pull-down resistance of
CHARGE pin
V(CHARGE)=3.3V 100K
I
PEAK1
R
SET
=33.2k 1.36 1.51 1.66 A
I
PEAK2
R
SET
=100k 0.4 0.5 0.6 A
Charge completion detect
voltage at FB
1.176 1.20 1.224 V
FB input bias current I(FB) -0.2 0.2 µA
DCM Comparator threshold With 1.2K (1%) connected to FB 15 25 35 mV
