IR2156 International Rectifier, IR2156 Datasheet - Page 19

• Manufacturer Part Number: IR2156
• Description: IC CNTL BALLAST 600V 0.5A 14-DIP
• Manufacturer: International Rectifier
• Type: Ballast Controllerr

Specifications of IR2156

• Frequency: 28 ~ 32 kHz
• Current - Supply: 1mA
• Voltage - Supply: 11.5 V ~ 15.6 V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 14-DIP (0.300", 7.62mm)
• For Use With: IRPLCFL4 - IC BALLAST DIMMING CFL 3-WAYIRPLCFL3 - KIT DESIGN CFL TRIAC DIMMING
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Output: -
• Other names: *IR2156

Design Equations
Step 1: Program Dead-time
Step 2: Program Run Frequency
f
RUN
R
T
. 1
t
2
C
DT
12
T
C
T
C
0 (
C
2000
1
T
t
T
DT
6 .
f
2000
1
RUN
R
T
2000
3333
)
Step 3: Program Preheat Frequency
Step 4: Program Preheat Time
Step 5: Program Maximum Ignition Current
R
f
PH
PH
C
t
R
PH
2
PH
T
. 1
C
12
T
C
. 1
t
C
PH
PH
1
12
T
0
6 .
R
. 3 e
. 0
C
f
T
1
PH
02
T
331
R
IR2156
1
T
R
f
6
PH
e
3333
PH
R
PH
6
3333
2000
R
T
( S ) & (PbF)