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RT9629B Datasheet(PDF) 5 Page - Richtek Technology Corporation

Part # RT9629B
Description  Triple-Channel Synchronous Rectified Buck MOSFET Driver
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9629B Datasheet(HTML) 5 Page - Richtek Technology Corporation

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RT9629B
5
DS9629B-03 October 2012
www.richtek.com
©
Copyright
2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Electrical Characteristics
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Power Supply Voltage
VCC
4.5
--
13.2
V
Power Supply Current
IVCC
VBOOTx = 12V, PWMx Floating
--
250
--
μA
Power On Reset (POR)
POR Rising Threshold
VPOR_r
VCCx Rising
--
4
4.4
V
POR Falling Threshold
VPOR_f
VCCx Falling
3
3.5
--
V
POR Pin High Voltage
VPOR_H
--
3.5
4
V
POR Pin Low Voltage
VPOR_L
--
--
0.5
V
(VCCx = 12V, TA = 25
°C unless otherwise specified)
Absolute Maximum Ratings
(Note 1)
Supply Voltage, VCC1, VCC2 ---------------------------------------------------------------------
−0.3V to 15V
BOOTx to PHASEx ----------------------------------------------------------------------------------
−0.3V to 15V
PHASEx to GND
DC --------------------------------------------------------------------------------------------------------
−0.3V to 30V
< 20ns ---------------------------------------------------------------------------------------------------
−10V to 35V
LGATEx to GND
DC --------------------------------------------------------------------------------------------------------
−0.3V to (VCC + 0.3V)
< 20ns ---------------------------------------------------------------------------------------------------
−2V to (VCC + 0.3V)
UGATEx to GND
DC -------------------------------------------------------------------------------------------------------- (VPHASE
− 0.3V) to (VBOOT + 0.3V)
< 20ns --------------------------------------------------------------------------------------------------- (VPHASE
− 2V) to (VBOOT + 0.3V)
PWMx to GND ----------------------------------------------------------------------------------------
−0.3V to 7V
POR to GND -------------------------------------------------------------------------------------------
−0.3V to 5V
Power Dissipation, PD @ TA = 25
°C
WQFN-24L 5x5 --------------------------------------------------------------------------------------- 2.778W
Package Thermal Resistance (Note 2)
WQFN-24L 5x5,
θJA ---------------------------------------------------------------------------------- 36°C/W
WQFN-24L 5x5,
θJC --------------------------------------------------------------------------------- 6°C/W
Lead Temperature (Soldering, 10 sec.) ---------------------------------------------------------- 260
°C
Junction Temperature -------------------------------------------------------------------------------- 150
°C
Storage Temperature Range -----------------------------------------------------------------------
−65°C to 150°C
ESD Susceptibility (Note 3)
HBM (Human Body Model) ------------------------------------------------------------------------- 2kV
Recommended Operating Conditions
(Note 4)
Supply Voltage, VCC1, VCC2 --------------------------------------------------------------------- 4.5V to 13.2V
Junction Temperature Range -----------------------------------------------------------------------
−40°C to 125°C
Ambient Temperature Range -----------------------------------------------------------------------
−40°C to 85°C


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