1
DATASHEET
40A DrMOS Power Module with Integrated Diode
Emulation and Thermal Warning Output
ISL99140
The ISL99140 is a high performance DrMOS power module
designed for high frequency power conversion. By combining a
high performance FET driver and MOSFETs in an advanced
package, high density DC/DC converters may be created.
Combined with an Intersil PWM controller, a complete voltage
regulator solution can be created with reduced external
components and minimum overall PCB real estate.
The ISL99140 features a three-state PWM input that, working
together with Intersil’s multiphase PWM controllers, will
provide a robust solution in the event of abnormal operating
conditions. To further support robust applications, the
ISL99140 features a thermal warning output that may be used
to notify the power system of an impending thermal fail event.
The ISL99140 supports high efficiency operation not only at
heavy loads, but also at light loads via its diode emulation
capability. Diode emulation can be disabled for those
applications where variable frequency operation is not desired
at light loads.
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Features
• Compliant with Intel DrMOS rev 4.0 specifications
• 40A average output current capability
• Supports 3-state 3.3V PWM input
• Supports 2-state 5V PWM input
• Thermal warning output
• Diode emulation option
• Adaptive shoot-through protection
• Integrated high-side gate-to-source resistor to prevent self
turn-on due to high input bus dV/dt
• Undervoltage lockout
• Switching frequencies up to 2MHz
• Pb-free (RoHS compliant)
•6x6 QFN package
Applications
• High frequency and high efficiency VRM and VRD
• Core, graphic and memory regulators for microprocessors
• High density VR for server, networking and cloud computing
• POL DC/DC converters and video gaming consoles
FIGURE 1. SIMPLIFIED APPLICATION BLOCK DIAGRAM
INTERSIL
CONTROLLER
PW M
PHASE
BOOT
+5V
EN
THDN
SHOOT-
THROUGH
PROTECTION
LOGIC
CONTROL
EN
VCC
PV CC
PV CC
AGND
PG ND
VI N
+12V
GND
SMOD
L
OUT
V
OUT
C
OUT
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Copyright Intersil Americas LLC 2014, 2016. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
January 7, 2016
FN8642.1
