IR21571S データシートの表示（PDF） - International Rectifier
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コンポーネント説明
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IR21571S Datasheet PDF : 17 Pages
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IR21571(S)
Functional Block Diagram
3.0V
VDC 1
CPH 2
7.6V
5.1V
1.0uA
5.1V
RPH 3
RT 4
RUN 5
4.0V
IRT
2.0V
CT 6
ICT = IRT
DT 7
SQ
RQ
4.0V
2.0V
OC 8
50uA
7.6V
UNDER-
VOLTAGE
DETECT
LEVEL
SHIFT
PULSE
FILTER &
LATCH
14 VB
16 HO
15 VS
SQ
R1
R2 Q
TQ
RQ
QS
QR
QD
CLK
QR
OVER-
TEMP
DETECT
13 VCC
11 LO
15.6V
12 COM
0.2V
10 CS
7.6V
2.0V 7.6V
9 SD
Lead Assignments & Definitions
Pin # Symbol Description
VDC 1
CPH 2
RPH 3
RT 4
RUN 5
CT 6
DT 7
OC 8
16 HO
15 VS
14 VB
13 VCC
12 COM
11 LO
10 CS
9 SD
1
VDC
DC Bus Sensing Input
2
CPH Preheat Timing Capacitor
3
RPH Preheat Frequency Resistor & Ignition Capacitor
4
RT
Oscillator Timing Resistor
5
RUN Run Frequency Resistor
6
CT
Oscillator Timing Capacitor
7
DT
Deadtime Programming
8
OC
Over-current (CS+) Threshold Programming
9
SD
Shutdown Input
10
CS
Current Sensing Input
11
LO
Low-Side Gate Driver Output
12
COM IC Power & Signal Ground
13
VCC Logic & Low-Side Gate Driver Supply
14
VB
High-Side Gate Driver Floating Supply
15
VS
High Voltage Floating Return
16
HO
High-Side Gate Driver Output
6
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