OptiMOS™ Driver PX3517 and PX3519

Product Brief
OptiMOS™ Driver: PX3517 and PX3519
High Speed Driver for Dual Power MOSFET
The new OptiMOS™ Driver products PX3517 and PX3519 are high speed drivers,
designed to drive a wide range of dual high side and low side n-channel power
MOSFETs in applications such as Computing and Telecom Point of Load.
Combining the new devices with Primarion family of DigitalMulti-phase Controller
ICs or Digital Point of Load Controller ICs and Infineon n-channel MOSFET products, the new devices form a complete core-voltage regulator solution for advanced micro and graphic processors as well as point-of-load applications.
To tailor the efficiency of the system based on the customer conditions and needs,
the OptiMOS™ Driver devices provide the capability of driving the high-side gate
and low-side gate with a variable gate driving voltage ranging from 4.5V up to 8V.
Product Identification
Part Number
Temperature Range
PX3517
-25 to 125°C
3x3 10-leads
Package
3517
Marking
PX3519
-25 to 125°C
3x3 8-leads
3519
VCC
BOOT
PVCC
„„
High frequency operation up to 1.2MHz
„„
Wide VCC input voltage range: 4.5V – 8V
Low power dissipation
Includes bootstrap diode
Adaptive shoot through protection
Compatible with standard + 3.3V PWM
controller ICs
Tri-state PWM input functionality
RoHS compliant
„„
„„
„„
„„
„„
„„
PX3517
Capability to drive MOSFET at 50A
continuous current per phase
„„ Adjustable thermal warning
„„ Thermal warning report function
„„ Small package: 3mm x 3mm 10-pin
„„
PX3519
Capability to drive MOSFET for 50A per phase
„„ Wide input voltage range: up to 16V
„„ Gate disable pin for low power consumption
„„ Small package: 3mm x 3mm 8-pin
„„
Benefits
Simplified Block Diagramm of PX3517 and PX3519
RT
General Features
EN
„„
BOOT
3.3V
THW#
Level
Shifter
HS Driver
UGATE
100K
10K
VCC
4K25
HS
Logic
Input
Logic
3 State
PWM
to GND
PHASE
Shoot Through
Protection Unit
4K 25
-
PVCC
LS
Logic
4K0
„„
10K
„„
UVLO
3.3V
UGATE
3.3V
Thermal
Sense
Cell
„„
HS Driver
Level
Shifter
Logic Unit
LGATE
LS Driver
Input
Logic
3 State
PWM
10K
HS
Logic
-
LS
Logic
4K
PHASE
Shoot Through
Protection Unit
Logic Unit
VCC
LGATE
LS Driver
10K
„„
Applications
„„
„„
GND
www.infineon.com/optimosdriver
GND
Powerful driver capability enables fast
switching
Low ohmic pull down resistance for low
side MOSFET (prevents induced turn on)
Short dead time for minimizing diode losses
Adjustable thermal protection (PX3517)
Fast ENABLE (EN) pin for switching off the
Low Side MOSFET for Diode Emulation
Mode (DEM) (PX3519)
Computing
Telecom Point of Load (PoL)
Product Brief
OptiMOS™ Driver: PX3517 and PX3519
High Speed Driver for Dual Power MOSFET
PX3517
PX3519
System efficiency for VR12.5 Application for 5 Phase measurement
97
95.3% Peak Efficiency
96
95
Efficiency [%]
94
93
Together with the new OptiMOS™ MOSFETs,
PX3517 and PX3519 achieve superior efficiency in
DC/DC voltage regulation.
Measurement Conditions
Vin=12V, Vout=1.82V, LL=0mΩ, Lout=150 nH,
fswitch=429kHz, Tamb=25°C, CanPAK™
92
91
90
89
88
87
86
> 93% at 40A/phase
85
0
20
40
60
80
100
120
140
160
180
200
Output Load Current [A]
220
Included Losses
Controller, power stage, inductor
Dead time
Turn off IOUT=30A
Dead time
Turn off IOUT=30A
GH: UGATE
GL: LGATE
VSWH: VSWITCH Phase
GH: UGATE
GL: LGATE
VSWH: VSWITCH Phase
GL
GH
VSWH
GH
VSWH
PWM
GH-Phase
GH-Phase
20 ns
10 ns
Both transition, from ON to OFF and from OFF to ON show short duration achieving low diode losses and enabling
higher switching frequency without any overlap between the gate signals (UGATE and LGATE).
Published by
Infineon Technologies Austria AG
9500 Villach, Austria
© 2013 Infineon Technologies AG.
All Rights Reserved.
Visit us:
www.infineon.com
Order Number: B111-H9818-G1-X-7600-DB2013-0013
Date: 09 / 2013
Attention please!
The information given in this document shall in no event
be regarded as a guarantee of conditions or characteristics
(“Beschaffenheitsgarantie”). With respect to any examples
or hints given herein, any typical values stated herein and/
or any information regarding the application of the device,
Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation
warranties of non-infringement of intellectual property
rights of any third party.
Information
For further information on technology, delivery terms and
conditions and prices please contact your nearest Infineon
Technologies Office (www.infineon.com).
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