|
|
Número de pieza | FAN7544 | |
Descripción | Simple Ballast Controller | |
Fabricantes | Fairchild Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de FAN7544 (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
No Preview Available ! www.fairchildsemi.com
FAN7544
Simple Ballast Controller
Features
• Low Start-up and Operating Current : 140µA, 6.5mA
• Under Voltage Lock Out With 1.9V of Hysteresis
• 600mA of Totem Pole Output with High State Clamp
• Trimmed 1.5% Internal Bandgap Reference
• Programmable Preheat Time & Frequency
• Programmable Run Frequency
• High Accuracy Oscillator
Descriptions
The FAN7544 provides simple and high performance elec-
tronic ballast control functions. The FAN7544 is optimized
for electronic ballast requiring a minimum board area, by
reducing component counts and lowering power dissipation.
The features include programmable preheating time and fre-
quency and programmable run frequency. The initial pre-
heating time and frequency can be adjusted according to the
types of lamps using the CPH, CT and RPH. Output gate
driver circuit clamps power MOSFET gate voltage to the
supply voltage.
8-DIP
8-SOP
Internal Block Diagram
1
1
CPH 4
Vz
2.9V
5V
1
2.9V 2.1
Iph - Irt
CT 2
5V
6.25Ict
5.2V
1.5V
RT 3
RPH 1
Current
Source
Current
Source
−
−2V
+
VCPH
+
5V
Ict Irt
RQ
Oscillator
S
Latch
Irt=Vref/Rt
Iph=Vref/Rph
Shutdown signal
TSD
9V Vsup
Bias
Current
SQ
RQ
Frequency
Divider
©2004 Fairchild Semiconductor Corporation
UVLO
1.9V
8 Vcc
11.6V
Vcc
7 OUT1
Vcc
6 OUT2
5 GND
Rev. 1.0.0
1 page Typical Characteristics
FAN7544
0.008
0.007
0.006
0.005
0.004
0.003
0.002
0.001
0.000
-0.001
0
5 10 15 20 25 30
Vcc[V]
Figure 1. UVLO
14.0
13.5 UV+
13.0 UV-
12.5
12.0
11.5
11.0
10.5
10.0
9.5
9.0
8.5
8.0
7.5
7.0
-60 -40 -20
0
20 40 60 80 100 120 140
Temperature [°C]
Figure 3. UVLO Hysteresis
53 Rt=80kΩ, Ct=470p
52
10 idcc @VCC=30V
idcc @VCC=15V
9 idcc @VCC=12.5V
8
7
6
5
4
-60 -40 -20
0
20 40 60 80 100 120 140
Temperature [°C]
Figure 2. Dynamic Operating Current
9
icc @VCC=30V
icc @VCC=15V
8 iccl @VCC=12.5V
7
6
5
4
3
-60 -40 -20
0
20 40 60 80 100 120 140
Temperature [°C]
Figure 4. Operating Current
51
50
49
48
47
-60
-40 -20 0 20 40 60 80
Temperature [°C]
Figure 5. Switching Frequency
100 120 140
5
5 Page FAN7544
Part number
R102, R202
R103, R203
R106, R206
C50
C51
C52, C53
C54
C55, C56, C57, C58
CT
CPH
C100, C101, C200, C201
C102, C202
L100, L200
T1
Q50
M50, M51
D50, D51, D100, D101,
D200, D201
ZD50, ZD51
ZD52, ZD53
Value
5.1kΩ
50kΩ
30kΩ
4.7µF, 50V
105
104
1nF, 630V
104
471
474
6.8nF, 630V
4.7nF, 1000V
3.2mH(120T)
4mH(50T:50T)
4mH(50T:100T)
NPN transistor
500V, 5A, Power Mosfet
Small Signal Diode
15V, 1W Zener Diode
15V, Zener Diode
Note
Ceriamic, 1206
Ceriamic, 1206
Ceriamic, 1206
Electrolytic
Ceriamic, 0805
Ceramic, 1206
Miller-Cap
Ceramic, 0805
Ceramic, 0805
Ceramic, 0805
Miller-Cap
Miller-Cap
EE2820
EE1614
KST2222A
FQP5N500C, FQPF5N50C
Manufacturer
-
-
-
-
-
-
-
-
-
-
-
-
-
C53: 0Ω, ZD51 : Open
Fairchild
Fairchild
FDLL4148
Fairchild
1N4744A
MMSZ5245B
Fairchild
Fairchild
11
11 Page |
Páginas | Total 14 Páginas | |
PDF Descargar | [ Datasheet FAN7544.PDF ] |
Número de pieza | Descripción | Fabricantes |
FAN7544 | Simple Ballast Controller | Fairchild Semiconductor |
FAN7547A | LCD Backlight Inverter Drive IC | Fairchild Semiconductor |
FAN7548 | Dual LCD Back Light Inverter Drive IC | Fairchild Semiconductor |
Número de pieza | Descripción | Fabricantes |
SLA6805M | High Voltage 3 phase Motor Driver IC. |
Sanken |
SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |