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Número de pieza | IR2156 | |
Descripción | BALLAST CONTROL IC | |
Fabricantes | International Rectifier | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de IR2156 (archivo pdf) en la parte inferior de esta página. Total 24 Páginas | ||
No Preview Available ! Data Sheet No. PD60182-I
IR2156(S) & (PbF)
Features
• Ballast control and half-bridge driver in one IC
• Programmable preheat frequency
• Programmable preheat time
• Internal ignition ramp
• Programmable over-current threshold
• Programmable run frequency
Description
The IR2156 incorporates a high voltage half-bridge
gate driver with a programmable oscillator and state
diagram to form a complete ballast control IC. The
IR2156 features include programmable preheat and
run frequencies, programmable preheat time, program-
mable dead-time, and programmable over-current pro-
tection. Comprehensive protection features such as
protection from failure of a lamp to strike,filament fail-
ures, as well as an automatic restart function, have
been included in the design. The IR2156 is available in
both 14 lead PDIP and 14 lead SOIC packages.
BALLAST CONTROL IC
• Programmable dead time
• DC bus under-voltage reset
• Shutdown pin with hysteresis
• Internal 15.6V zener clamp diode on Vcc
• Micropower startup (150µA)
• Latch immunity and ESD protection
• Also available LEAD-FREE (PbF)
Packages
14 Lead PDIP
14 Lead SOIC
(narrow body)
CFL Application Diagram
DBOOT
CVCC2 CVCC1
RT
RPH
CT C VDC
NC
1
VCC
2
VDC
3
RT
4
RPH
5
CT
6
CPH
7
CCPH
R BUS
R SUPPLY
14 VB
HO
13
M1
VS
12
LOC BOOT
11
M2
CS
10
SD
9
COM
8
R1
CCS
RCS
C SNUB
CRES
DCP2
LRES
CCP
DCP1
D RECT1
C ELCAP1
C ELCAP1
DRECT2
L FILTE
R
L
F1
C FILTE
R
N
www.irf.com
1
1 page IR2156(S)&(PbF)
Block Diagram
Vcc
S1
RT
S2
R
40K
CT
RDT
2.5K
S3
R Comp 1
VTH
R
S4
R
S6
RPH
ICPH
R
CPH
VDC
RVDC
5.1V
5.1V
10K
Schmitt 1
Soft
Start
Driver
Logic
TQ
RQ
Fault
Logic
SQ
R1
R2 Q
SD
5.1V
Comp 2
COM
Under-
Voltage
Detect
High-
Side
Driver
VB
HO
VS
Low-
Side
Driver
LO
Comp 3
1.3V
CS
Lead Assignments & Definitions
Pin Assignments
NC 1
VCC 2
VDC 3
RT 4
RPH 5
CT 6
CPH 7
14 VB
13 HO
12 VS
11 LO
10 CS
9 SD
8 COM
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Symbol
NC
VCC
VDC
RT
RPH
CT
CPH
COM
SD
CS
LO
VS
HO
VB
Description
No connect
Logic & low-side gate driver supply
IC start-up and DC bus sensing Input
Minimum frequency timing resistor
Preheat frequency timing resistor
Oscillator timing capacitor
Preheat timing capacitor
IC power & signal ground
Shutdown input
Current sensing input
Low-side gate driver output
High-side floating return
High-side gate driver output
High-side gate driver floating supply
www.irf.com
5
5 Page IR2156(S)&(PbF)
1.5
1.4
1.3
1.2
1.1
1
-25 0 25 50 75 100 125
Temperature °C
Graph 9. VCSTH+ vs Temperature (IR2156)
15
14
13
12
11
10
-25
0
25 50 75 100 125
Temperature °C
Graph 11. RVDC+ vs Temperature (IR2156)
5
4.5
4
3.5
3
2.5
2
-25 0 25 50 75 100 125
Temperature °C
Graph 10. RDT vs Temperature (IR2156)
14
13
12
UV +
11
10
UV -
9
8
-25 0 25 50 75 100 125
Temperature °C
Graph 12. UV+, UV- vs Temperature (IR2156)
www.irf.com
11
11 Page |
Páginas | Total 24 Páginas | |
PDF Descargar | [ Datasheet IR2156.PDF ] |
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