參數(shù)資料
型號(hào)： IR51HD737
廠商： International Rectifier
英文描述： GT 3C 3#16S PIN PLUG
中文描述： 自激式半橋
文件頁(yè)數(shù)： 2/6頁(yè)
文件大?。?/td> 193K
代理商： IR51HD737
IR51HD737
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
V
IN
High Voltage Supply
V
B
High Side Floating Supply Absolute Voltage
VO
Half-Bridge Output Voltage
V
RT
R
T
Voltage
V
CT
C
T
Voltage
I
CC
Supply Current (Note 1)
I
RT
R
T
Output Current
dv/dt
Peak Diode Recovery dv/dt
P
D
Package Power Dissipation @ T
A
≤
+25oC
R
θ
JA
Thermal Resistance, Junction to Ambient
T
J
Junction Temperature
T
S
Storage Temperature
T
L
Lead Temperature (Soldering, 10 seconds)
Min.
-0.3
-0.3
-0.3
-0.3
-0.3
---
-5
---
---
---
-55
-55
---
Max.
300
325
V
IN
+ 0.3
V
CC
+ 0.3
V
CC
+ 0.3
25
5
3.4
2.00
60
150
150
300
Units
V
mA
V/ns
W
oC/W
oC
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
V
B
High Side Floating Supply Absolute Voltage
V
IN
High Voltage Supply
VO
Half-Bridge Output Voltage
I
D
Continuous Drain Current
(T
A
=
25oC)
(T
A
=
85oC)
I
CC
Supply Current (Note 1)
T
A
Ambient Temperature
Min.
VO + 10
---
-5
---
---
---
-40
Max.
Units
VO + V
CLAMP
300
300
1.3
0.8
5
125
V
A
mA
oC
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
CC
and COM which has a nominal breakdown voltage of
15.6V. Therefore, the IC supply voltage is normally derived by current feeding the V
CC
lead
(typically by means of a high value resistor connected between the chip V
CC
and the rectified line
voltage and a local decoupling capacitor from V
CC
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 V
CLAMP
.
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