IR21571S International Rectifier, IR21571S Datasheet - Page 6

• Manufacturer Part Number: IR21571S
• Description: IC BALLAST CONTROL 16-SOIC
• Manufacturer: International Rectifier
• Type: Ballast Controllerr

Specifications of IR21571S

• Frequency: 45.5 ~ 50.5 kHz
• Current - Supply: 5.5mA
• Current - Output: 500mA
• Voltage - Supply: 11.4 V ~ 15.6 V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 16-SOIC (3.9mm Width)
• Package: 16-lead SOIC Narrow
• Circuit: Fluorescent Ballast IC
• Offset Voltage (v): 625
• Output Source Current Min (ma): 250
• Output Sink Current Min (ma): 400
• Vcc Range (v): 10-25V with UVLO
• Output Voltage Min (v): 10
• Output Voltage Max (v): 25
• Special Ic: Fully Integrated
• Pbf: PbF Option Available
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *IR21571S

Functional Block Diagram
Lead Assignments & Definitions
IR21571 (S) & (PbF)
6
VDC
CPH
RPH
RUN
OC
RT
CT
DT
CPH
RPH
RUN
VDC
CT
DT
OC
RT
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
10V
7.6V
I
C
T
50uA
I
= I
R
T
3.0V
5.1V
5.1V
4.0V
R
T
1.0uA
2.0V
16
15
14
13
12
11
10
9
VOLTAGE
COM
VCC
UNDER-
DETECT
HO
CS
SD
VS
VB
LO
4.0V
2.0V
S
R
Q
Q
Pin # Symbol
15
10
11
12
13
14
16
1
2
3
4
5
6
7
8
9
R1
R2 Q
S
Q
Q
Q
VDC
COM
CPH
RPH
RUN
VCC
VS
OC
HO
RT
CT
DT
SD
CS
LO
VB
S
R
T
R
DETECT
OVER-
TEMP
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
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
Q
Q
Description
Q
Q
LEVEL
SHIFT
CLK
R
D
FILTER &
PULSE
LATCH
2.0V
15.6V
7.6V
0.2V
7.6V
14
16
15
13
11
12
10
9
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COM
VCC
HO
CS
SD
VB
VS
LO