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IR51H214 Datasheet(PDF) 2 Page - International Rectifier

Part No. IR51H214
Description  SELF-OSCILLATING HALF-BRIDGE
Download  6 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IR51H214 Datasheet(HTML) 2 Page - International Rectifier

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IR51H214
Absolute Maximum Ratings
Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All
voltage parameters are absolute voltages referenced to COM, all currents are defined positive into any lead.
The Thermal Resistance and Power Dissipation ratings are measured under board mounted and still air
conditions.
Parameter
Symbol
Definition
Min.
Max.
Units
VIN
High Voltage Supply
-0.3
250
VB
High Side Floating Supply Absolute Voltage
-0.3
275
VO
Half-Bridge Output Voltage
-0.3
VIN + 0.3
V
VRT
RT Voltage
-0.3
VCC + 0.3
VCT
CT Voltage
-0.3
VCC + 0.3
ICC
Supply Current (Note 1)
---
25
mA
IRT
RT Output Current
-5
5
dv/dt
Peak Diode Recovery dv/dt
---
4.8
V/ns
PD
Package Power Dissipation @ TA
≤ +25ºC
---
2.00
W
RθJA
Thermal Resistance, Junction to Ambient
---
60
ºC/W
TJ
Junction Temperature
-55
150
TS
Storage Temperature
-55
150
ºC
TL
Lead Temperature (Soldering, 10 seconds)
---
300
Recommended Operating Conditions
The Input/Output logic timing diagram is shown in Figure 1. For proper operation the device should be used
within the recommended conditions.
Parameter
Symbol
Definition
Min.
Max.
Units
VB
High Side Floating Supply Absolute Voltage
VO + 10
VO + VCLAMP
VIN
High Voltage Supply
---
250
V
VO
Half-Bridge Output Voltage
---
250
ID
Continuous Drain Current
(TA
= 25ºC)
---
0.85
A
(TA
= 85ºC)
---
0.55
ICC
Supply Current (Note 1)
---
5mA
TA
Ambient Temperature
-40
125
ºC
Note 1:
Because of the IR51H214's application specificity toward off-line supply systems, this IC contains a
zener clamp structure between the chip VCC and COM which has a nominal breakdown voltage of
15.6V.
Therefore, the IC supply voltage is normally derived by current feeding the VCC lead
(typically by means of a high value resistor connected between the chip VCC and the rectified line
voltage and a local decoupling capacitor from VCC to COM) and allowing the internal zener clamp
circuit to determine the nominal supply voltage. Therefore, this circuit should not be driven by a DC,
low impedance power source of greater than VCLAMP.
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