RT9624A Datasheet PDF - Richtek
Part Number | RT9624A | |
Description | Single Phase Synchronous Rectified Buck MOSFET Driver | |
Manufacturers | Richtek | |
Logo | ||
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RT9624A
Single Phase Synchronous Rectified Buck MOSFET Driver
General Description
The RT9624A is a high frequency, synchronous rectified,
single phase MOSFET driver designed for normal MOSFET
driving applications and high performance CPU VR driving
capabilities.
The RT9624A can be supplied from 4.5V to 13.2V. The
applicable power stage VIN range is from 5V to 24V. The
RT9624A also builds in an internal power switch to replace
external bootstrap diode.
The RT9624A can support switching frequency efficiently
up to 500kHz. The RT9624A has both the UGATE and
LGATE driving circuits for synchronous rectified DC/DC
converter applications. The shoot through protection
mechanism is designed to prevent shoot through between
high side and low side power MOSFETs. The RT9624A
has tri-state PWM input with shutdown and EN input
shutdown functions, which can force driver to output low
UGATE and LGATE signals.
The RT9624A comes in a small footprint with 8-pin
packages. The choice of package types includes SOP-8,
SOP-8 (Exposed Pad) and WDFN-8L 3x3.
Features
Drive Two N-MOSFETs
Shoot Through Protection
Embedded Bootstrap Diode
Support High Switching Frequency
Fast Output Rising Time
Tri-State PWM Input for Output Shutdown
Enable Control
Small SOP-8, SOP-8 (Exposed Pad) and 8-Lead
WDFN Packages
RoHS Compliant and Halogen Free
Applications
Core Voltage Supplies for Desktop, Motherboard CPU
High Frequency Low Profile DC/DC Converters
High Current Low Voltage DC/DC Converters
Core Voltage Supplies for GFX Card
Simplified Application Circuit
R1
12V
C1
Chip Enable
PWM
Controller
RT9624A
VCC
BOOT
R2
UGATE
EN PHASE
PWM LGATE
GND
CBOOT
R3
R4
C5 C6
VIN
Q1
L1
VOUT
R5
Q2
C2
C3 C4
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
DS9624A-06 December 2013
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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RT9624A
Absolute Maximum Ratings (Note 1)
Supply Voltage, VCC -------------------------------------------------------------------------------- −0.3V to 15V
BOOT to PHASE ------------------------------------------------------------------------------------- −0.3V to 15V
PHASE to GND
DC -------------------------------------------------------------------------------------------------------- −0.3V to 30V
< 20ns --------------------------------------------------------------------------------------------------- −10V to 35V
LGATE to GND
DC -------------------------------------------------------------------------------------------------------- −0.3V to (VCC + 0.3V)
< 20ns --------------------------------------------------------------------------------------------------- −2V to (VCC + 0.3V)
UGATE to GND
DC -------------------------------------------------------------------------------------------------------- (VPHASE − 0.3V) to (VBOOT + 0.3V)
< 20ns --------------------------------------------------------------------------------------------------- (VPHASE − 2V) to (VBOOT + 0.3V)
EN, PWM to GND ------------------------------------------------------------------------------------ −0.3V to 7V
Power Dissipation, PD @ TA = 25°C
SOP-8 --------------------------------------------------------------------------------------------------- 0.833W
SOP-8 (Exposed Pad) ------------------------------------------------------------------------------ 1.333W
WDFN-8L 3x3 ----------------------------------------------------------------------------------------- 3.22W
Package Thermal Resistance (Note 2)
SOP-8, θJA --------------------------------------------------------------------------------------------- 120°C/W
SOP-8 (Exposed Pad), θJA ------------------------------------------------------------------------- 75°C/W
SOP-8 (Exposed Pad), θJC ------------------------------------------------------------------------ 15°C/W
WDFN-8L 3x3, θJA ------------------------------------------------------------------------------------ 31°C/W
WDFN-8L 3x3, θJC ------------------------------------------------------------------------------------ 8°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, VCC -------------------------------------------------------------------------------- 4.5V to 13.2V
Input Voltage, (VIN + VCC) ------------------------------------------------------------------------- < 35V
Junction Temperature Range ----------------------------------------------------------------------- −40°C to 125°C
Ambient Temperature Range ----------------------------------------------------------------------- −40°C to 85°C
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
DS9624A-06 December 2013
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for RT9624A electronic component. |
Information | Total 16 Pages | |
Link URL | [ Copy URL to Clipboard ] | |
Download | [ RT9624A.PDF Datasheet ] |
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