IR53HD420_ Ver la hoja de datos (PDF) - International Rectifier
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componentes Descripción
Lista de partido
IR53HD420_ Datasheet PDF : 6 Pages
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The pre-heat time is determined by an RC combination formed by R3 and C3 and the voltage of
zener diode D1. When the voltage across C3 reaches the magnitude of the zener diode D1 + the
turn-on threshold of Q1, capacitor C6 is shorted out and the frequency shifts to the final running
frequency. The final running frequency is given by the formula:
f run
=
1
1.4(R6)(C5)
The final component values, shown in Bill of Materials, were chosen to operate a 13 watt compact
fluorescent lamp with a cathode resistance at cold of 4 ohms. If a lamp is used which has a different
cathode resistance the component values for the pre-heat frequency selection will need to be changed.
The ballast circuit was operated at various temperatures from 25 degrees C to 105 degrees C with
little or no change in the operating characteristics.
The IR Family of Integrated Half-Bridge Products (9-pin SIP Package)
Part Number
IRxxH214, HD214
IRxxH224, HD224
IRxxH737, HD737
IRxxH310, HD310
IRxxH320, HD320
IRxxH420, HD420
Maximum
Voltage
250V
250V
300V
400V
400V
500V
Rds(on)
at 25C
2.0Ω
1.1Ω
0.75Ω
3.6Ω
1.8Ω
3.0Ω
Target Applications
(Spec only for ZVS)
110VAC, 5W-15W
110VAC, 15W-25W
110VAC, 25W-35W
220VAC, 5W-15W
220VAC, 15W-25W
220VAC, 10W-20W
1) IC options for the half-bridge products include IR2101, IR2102, IR2103, IR2104, IR2151, IR2152,
IR2153, IR2154. Use the last two digits of the IC part number for the “xx” designator.
2) The “H” option contains only the Control IC and MOSFET half-bridge. The “HD” option contains
the Control IC, Bootstrap Diode and MOSFET half-bridge.
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