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Intersil Corporation - 7V/ 7A SynchroFET Complementary Drive Synchronous Half-Bridge

Numéro de référence HIP5016IS
Description 7V/ 7A SynchroFET Complementary Drive Synchronous Half-Bridge
Fabricant Intersil Corporation 
Logo Intersil Corporation 





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HIP5016IS fiche technique
Data Sheet
HIP5015, HIP5016
June 1996
File Number 4142
7V, 7A SynchroFET™ Complementary
Drive Synchronous Half-Bridge
Designed with the Pentium® in mind, the Intersil SynchroFET
family provides a new approach for implementing a
synchronous rectified buck switching regulator. The
SynchroFET™ replaces two power DMOSs, a Schottky diode,
two gate drivers and synchronous control circuitry. The
complementary drive circuit turns the upper FET on and the
lower FET off when the input from the PWM is high. When the
input from the PWM goes low the upper FET turns off and the
lower FET turns on. The HIP5016 has a PWM pin that inverts
the relationship from the input to PHASE. This architecture
allows the designer to utilize a low cost single-ended PWM
controller in either a current or voltage mode configuration. The
SynchroFET operates in continuous conduction mode reducing
EMI constraints and enabling high bandwidth operation.
Several features ensure easy start-up. First, the supply currents
stay below specification as the supply voltages ramp up; no
unexpected surges occur that might perturb a soft-start or
deplete a charge-pump. Second, any power-up sequence of
the VCC, VIN, or PWM pins can be used without causing large
currents. Third, the chip operates when VCC is greater than 2V
so VCC can be created from a charge pump powered from VIN.
Ordering Information
TEMP.
PART NUMBER RANGE (oC)
PACKAGE
PKG.
NO.
HIP5015IS
-40 to 85 7 Ld Gullwing SIP Z7.05B
HIP5015IS1
-40 to 85 7 Ld Staggered
Vertical SIP
Z7.05C
HIP5016IS
-40 to 85 7 Ld Gullwing SIP Z7.05B
HIP5016IS1
-40 to 85 7 Ld Staggered
Vertical SIP
Z7.05C
Pinouts
HIP5015IS1, HIP5016IS1 (SIP - VERTICAL)
TOP VIEW
GND (TAB)
7 NC
6 NC
5 PWM (HIP5015), PWM (HIP5016)
4 GND
3 VCC
2 VIN
1 PHASE
FRONT ROWS = PINS 1,3,5,7
BACK ROWS = PINS 2,4,6
Pentium® is a registered trademark of Intel Corporation.
SynchroFET™ is a trademark of Intersil Corporation.
Features
• Complementary Drive, Half-Bridge Power NMOS
• Use With Low-Cost Single-Output PWM Controllers
• Improve Efficiency Over Conventional Buck Converter with
Schottky Clamp
• Minimum Deadtime Provided by Adaptive Shoot-Through
Protection Eliminates External Schottky
• Grounded Case for Low EMI and Simple Heatsinking
• Low Operating Current
• Frequency Exceeding 1MHz
• Dual Polarity Input Options
• All Pins Surge Protected
Applications
• 5V to 3.3V Synchronous Buck Converters
• 3.3V to 2.9V Synchronous Buck Converters
• Pentium Power Supplies
• Bus Terminations (BTL and GTL)
• Drive 5V Motors Directly from Microprocessor
Typical Application Block Diagram
+12V
+5V
VCC
VIN
PWM
CONTROLLER
PWM
CONTROL
PHASE
+3.3V
HIP5015
GND
SYNCHRONOUS RECTIFIED BUCK CONVERTER
GND
(TAB)
HIP5015IS, HIP5016IS (SIP - GULLWING)
TOP VIEW
7 NC
6 NC
5 PWM (HIP5015), PWM (HIP5016)
4
3 VCC
2 VIN
1 PHASE
2-8 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999

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