RT9612A Datasheet PDF - Richtek
| Part Number | RT9612A | |
| Description | Synchronous-Rectified Buck MOSFET Driver | |
| Manufacturers | Richtek | |
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RT9612A/B
Synchronous-Rectified Buck MOSFET Driver
General Description
The RT9612A/B is a high frequency, synchronous rectified,
single phase dual MOSFET driver designed to adapt from
normal MOSFET driving applications to high performance
CPU VR driving capabilities.
The RT9612A/B can be utilized under both VCC = 5V or
VCC = 12V applications. The RT9612A/B also builds in an
internal power switch to replace external boot strap diode.
The RT9612A/B can support switching frequency efficiently
up to 500kHz. The RT9612A/B has the UGATE driving
circuit and the LGATE driving circuit for synchronous
rectified DC/DC converter applications. The driving rise/
fall time capability is designed within 30ns and the shoot
through protection mechanism is designed to prevent shoot
through of high side and low side power MOSFETs. The
RT9612A/B has PWM tri-state shut down function which
can force driver output into high impedance.
The difference of the RT9612A and the RT9612B is the
propagation delay, tUGATEpdh. The RT9612B has
comparatively large tUGATEpdh than RT9612B. Hence, the
RT9612A is usually recommended to be utilized in
performance oriented applications, such as high power
density CPU VR or GPU VR. The RT9612A/B comes in a
small footprint with SOP-8, SOP-8 (Exposed Pad) and
WDFN-8EL 3x3.
Features
Drive Two N-MOSFETs
Adaptive Shoot Through Protection
Embedded Bootstrap Diode
Support High Switching Frequency
Fast Output Rise Time
Tri-State Input for Bridge Shutdown
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
Ordering Information
RT9612A/B
Package Type
S : SOP-8
SP : SOP-8 (Exposed Pad-Option1)
QW : WDFN-8EL 3x3 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Z : ECO (Ecological Element with
Halogen Free and Pb free)
Note :
Long Dead Time
Short Dead Time
Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS9612A/B-03 June 2012
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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RT9612A/B
Absolute Maximum Ratings (Note 1)
Supply Voltage, VCC -------------------------------------------------------------------------------- −0.3V to 15V
BOOT to PHASE ------------------------------------------------------------------------------------- −0.3V to 15V
PHASE to GND
DC ------------------------------------------------------------------------------------------------------- −5V to 15V
< 200ns ------------------------------------------------------------------------------------------------ −10V to 30V
LGATE
DC ------------------------------------------------------------------------------------------------------- (GND − 0.3V) to (VCC + 0.3V)
< 200ns ------------------------------------------------------------------------------------------------ −2V to (VCC + 0.3V)
UGATE -------------------------------------------------------------------------------------------------- (VPHASE − 0.3V) to (VBOOT + 0.3V)
< 200ns ------------------------------------------------------------------------------------------------ (VPHASE − 2V) to (VBOOT + 0.3V)
PWM Input Voltage ---------------------------------------------------------------------------------- (GND − 0.3V) to 7V
Power Dissipation, PD @ TA = 25°C
SOP-8 --------------------------------------------------------------------------------------------------- 0.833W
SOP-8 (Exposed Pad) ------------------------------------------------------------------------------ 1.333W
WDFN-8EL 3x3 --------------------------------------------------------------------------------------- 1.429W
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-8EL 3x3, θJA ---------------------------------------------------------------------------------- 70°C/W
WDFN-8EL 3x3, θJC --------------------------------------------------------------------------------- 8.2°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 -------------------------------------------------------------------------------- 12V ± 10%
Junction Temperature Range ----------------------------------------------------------------------- −40°C to 125°C
Ambient Temperature Range ----------------------------------------------------------------------- −40°C to 85°C
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS9612A/B-03 June 2012
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for RT9612A electronic component. |
| Information | Total 15 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ RT9612A.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| RT9612A | The function is Synchronous-Rectified Buck MOSFET Driver. Richtek | |
| RT9612B | The function is Synchronous-Rectified Buck MOSFET Driver. Richtek | |
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