參數(shù)資料
型號: IR21571S
廠商: International Rectifier
英文描述: FULLY INTEGRATED BALLAST CONTROL IC
中文描述: 完全集成的鎮(zhèn)流器控制IC
文件頁數(shù): 6/17頁
文件大?。?/td> 234K
代理商: IR21571S
IR21571
(S)
6
www.irf.com
Functional Block Diagram
Pin # Symbol
1
2
Description
DC Bus Sensing Input
Preheat Timing Capacitor
Preheat Frequency Resistor & Ignition Capacitor
Oscillator Timing Resistor
Run Frequency Resistor
Oscillator Timing Capacitor
Deadtime Programming
Over-current (CS+) Threshold Programming
11
12
10
9
3
4
8
7
6
5
16
15
14
13
VDC
CPH
HO
VB
VS
VCC
COM
LO
CS
SD
DT
OC
CT
RUN
RT
RPH
Shutdown Input
Current Sensing Input
Low-Side Gate Driver Output
IC Power & Signal Ground
Logic & Low-Side Gate Driver Supply
High-Side Gate Driver Floating Supply
High Voltage Floating Return
High-Side Gate Driver Output
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
I
VDC
CPH
RPH
RT
RUN
CT
DT
OC
LO
COM
VCC
VB
VS
HO
SD
CS
Lead Assignments & Definitions
OVER-
TEMP
DETECT
LEVEL
SHIFT
PULSE
FILTER &
LATCH
2
4.0V
5.1V
3
5
10V
3.0V
5.1V
1
1.0uA
4
2.0V
I
R
T
6
I
C
T
= I
R
T
7
4.0V
2.0V
CPH
RPH
RT
RUN
CT
DT
VDC
Q
S
R1
R2 Q
Q
T
R
Q
16
14
15
VS
HO
VB
13
11
12
COM
LO
VCC
15.6V
9
SD
10
0.2V
CS
Q
S
R
Q
Q
D
R
Q
CLK
Q
S
R
Q
UNDER-
VOLTAGE
DETECT
2.0V
8
OC
50uA
7.6V
7.6V
7.6V
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