ir51h737 International Rectifier Corp., ir51h737 Datasheet

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ir51h737

Manufacturer Part Number
ir51h737
Description
Self-oscillating Half-bridge
Manufacturer
International Rectifier Corp.
Datasheet

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Part Number:
IR51H737
Manufacturer:
AMI
Quantity:
6 245
Features
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 300 volts.
Typical Connection
The IR51H737 is a high voltage, high speed, self-
Output Power MOSFETs in half-bridge configuration
High side gate drive designed for bootstrap operation
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
300V Rated Breakdown Voltage
Matched delay to get 50% duty cycle
Matched deadtime of 1.2us
f
V I N
1 4
C O M
. × (
CMOS
U P T O
power
configuration
R
3 0 0 V D C
T
technologies,
1
MOSFET
75
Proprietary HVIC and latch
B U S
) ×
with
C
T
technology,
an
along
R T
C T
The device can
internally
1
2
3
4
T
with
I R 5 1 H 7 3 7
R
C
C O M
V
C C
T
T
enable
To Order
V I N
V
V O
SELF-OSCILLATING HALF-BRIDGE
the
set
Index
B
6
9
7
Product Summary
Package
V
Duty Cycle
Deadtime
R
P
IN
D
DS(on)
(T
(max)
A
IR51H737
= 25 ºC )
9506
IR51H737
Next Data Sheet
Data Sheet No. PD-6.057D
300V
50%
1.2µs
0.75
2.0W
T O
L O A D

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ir51h737 Summary of contents

Page 1

... Zener clamped Vcc for offline operation n Half-bridge output is out of phase with R Description The IR51H737 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 IR51H737'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 --- 0.75 --- 0.8 --- To Order Next Data Sheet IR51H737 Test Conditions --- 1 --- µC di/dt = 100A/µs --- µs --- % kHz OSC Test Conditions --- V --- --- µA --- --- µ 300V B IN --- kHz --- ...

Page 4

... Previous Datasheet IR51H737 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 IR51H737 R T 50% HIGH SIDE V + LOW SIDE 0 Figure 2. Deadtime Waveform Definitions To Order Next Data Sheet IR51H737 50% 90% 10% DT 90% 10% ...

Page 6

... Previous Datasheet IR51H737 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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