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IR51HD737 Datasheet

  • IR51HD737

  • SELF-OSCILLATING HALF-BRIDGE

  • 6頁

  • IRF

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Data Sheet No. PD-6.057D
IR51HD737
SELF-OSCILLATING HALF-BRIDGE
Features
n
n
n
n
n
n
n
Product Summary
V
IN
(max)
Duty Cycle
Deadtime
R
DS(on)
P
D
(T
A
= 25 潞C)
300V
50%
1.2碌s
0.75鈩?/div>
鈩?/div>
2.0W
Output Power MOSFETs in half-bridge configuration
300V Rated Breakdown Voltage
High side gate drive designed for bootstrap operation
Bootstrap diode integrated into package
Accurate timing control for both Power MOSFETs
Matched delay to get 50% duty cycle
Matched deadtime of 1.2us
Internal oscillator with programmable frequency
1
1
.
4
脳 (
R
T
+
75
鈩?/div>
) 脳
C
T
Zener clamped Vcc for offline operation
Half-bridge output is out of phase with R
T
f
=
Package
Description
The IR51HD737 is a high voltage, high speed, self-
oscillating half-bridge. Proprietary HVIC and latch
immune CMOS technologies, along with the
HEXFET
廬
power MOSFET technology, enable
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 configuration with an internally set
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. The device can
operate up to 300 volts.
IR51HD737
9506
Typical Connection
U P
V IN
T O
3 0 0 V
D C
B U S
IR 5 1 H D 7 3 7
1
V
C C
V
B
6
2
R
T
V IN
9
R T
3
C
T
V O
7
C T
4
C O M
T O
L O A D
C O M
To Order

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