ir51hd320 International Rectifier Corp., ir51hd320 Datasheet

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ir51hd320

Manufacturer Part Number
ir51hd320
Description
Self-oscillating Half-bridge
Manufacturer
International Rectifier Corp.
Datasheet
Features
n
n
n
n
n
n
n
Description
oscillating half-bridge.
immune
HEXFET ®
ruggedized single package construction. The front-end
features a programmable oscillator which functions
similar to the CMOS 555 timer. The supply to the
control circuit has a zener clamp to simplify offline
operation. The output features two HEXFETs in a
half-bridge
deadtime designed for minimum cross-conduction in
the half-bridge. Propagation delays for the high and
low side power MOSFETs are matched to simplify use
in 50% duty cycle applications.
operate up to 400 volts.
Typical Connection
The IR51HD320 is a high voltage, high speed, self-
Output Power MOSFETs in half-bridge configuration
High side gate drive designed for bootstrap operation
Bootstrap diode integrated into package
Accurate timing control for both Power MOSFETs
Internal oscillator with programmable frequency
Zener clamped Vcc for offline operation
Half-bridge output is out of phase with R
Previous Datasheet
400V Rated Breakdown Voltage
Matched delay to get 50% duty cycle
Matched deadtime of 1.2us
f
V I N
1 4
. × (
CMOS
U P T O 4 0 0 V D C B U S
C O M
power
configuration
R
T
technologies,
1
MOSFET
75
Proprietary HVIC and latch
) ×
with
C
T
technology,
an
R T
along
C T
The device can
internally
1
2
3
4
T
I R 5 1 H D 3 2 0
with
R
C
C O M
V
C C
T
T
enable
V I N
To Order
V
V O
SELF-OSCILLATING HALF-BRIDGE
the
set
B
Index
6
9
7
Product Summary
Package
V
Duty Cycle
Deadtime
R
P
IN
D
DS(on)
(T
(max)
IR51HD320
A
IR51HD320
= 25 ºC )
9506
Data Sheet No. PD-6.067B
Next Data Sheet
400V
50%
1.2µs
1.8
2.0W
T O L O A D

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ir51hd320 Summary of contents

Page 1

... C . × × Zener clamped Vcc for offline operation n Half-bridge output is out of phase with R Description The IR51HD320 is a high voltage, high speed, self- oscillating half-bridge. Proprietary HVIC and latch immune CMOS technologies, HEXFET ® power MOSFET technology, ruggedized single package construction. The front-end features a programmable oscillator which functions similar to the CMOS 555 timer ...

Page 2

... CC T Ambient Temperature A Note 1: Because of the IR51HD320's application specificity toward off-line supply systems, this IC contains a zener clamp structure between the chip V 15.6V. Therefore, the IC supply voltage is normally derived by current feeding the V (typically by means of a high value resistor connected between the chip V voltage and a local decoupling capacitor from V circuit to determine the nominal supply voltage ...

Page 3

... V --- 20 --- 100 --- 0.001 --- 100 --- - R --- --- 200 --- 20 --- 200 - R --- 100 CC T --- 8.0 --- 4.0 --- 1.8 --- 0.7 --- To Order Next Data Sheet IR51HD320 Max. Units Test Conditions --- 900mA F --- µC di/dt = 100A/µs --- µs --- % kHz OSC Test Conditions --- V --- --- µA --- --- µ 400V B IN --- kHz ...

Page 4

... Previous Datasheet IR51HD320 Functional Block Diagram Lead Definitions Symbol V Logic and internal gate drive supply voltage. An internal zener clamp diode at 15.6 V nominal is CC included to allow the Vcc to be current fed directly from V resistor. R Oscillator timing resistor input; a resistor is connected from R T the half-bridge output (VO) ...

Page 5

... CLAMP Figure 1. Input/Output Timing Diagram Index COM Lead SIP w/o Leads 5 & 8 IR51HD320 R T 50% HIGH SIDE V + LOW SIDE 0 Figure 2. Deadtime Waveform Definitions To Order Next Data Sheet IR51HD320 50% 90% 10% DT 90% 10% ...

Page 6

... Previous Datasheet IR51HD320 IR CANADA: 7321 Victoria Park Ave., Suite 201, Markham, Ontario L3R 2Z8, Tel: (905) 475 1897 IR FAR EAST: 171 (K&H Bldg.), 30-4 Nishi-ikebukuro 3-Chome, Toshima-ku, Tokyo Japan Tel 3983 0086 IR SOUTHEAST ASIA: 315 Outram Road, #10-02 Tan Boon Liat Building, Singapore 0316 Tel: 65 221 8371 Sales Offices, Agents and Distributors in Major Cities Throughout the World. © ...

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