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參數資料
| 型號： | FAN7544MX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | Simple Ballast Controller |
| 中文描述： | 0.6 A FLUORESCENT LIGHT CONTROLLER, 54.5 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SOP-8 |
| 文件頁數： | 1/14頁 |
| 文件大小： | 1185K |
| 代理商： | FAN7544MX |
2004 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.0
Features
Low Start-up and Operating Current : 140
μ
A, 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.
Internal Block Diagram
FAN7544
Simple Ballast Controller
8-DIP
8-SOP
1
1
GND
Latch
1.9V
C
PH
Vcc
R
PH
R
T
OUT1
UVLO
11.6V
1
3
6
4
7
Vcc
Vcc
Frequency
Divider
Q
2
5.2V
1.5V
Oscillator
6.25Ict
Ict
Irt=Vref/Rt
C
T
OUT2
Iph=Vref/Rph
Current
Source
Current
Source
2.9V
2.9V
Irt
5V
Iph - Irt
1
2.1
5V
2V
Shutdown signal
+
Bias
Current
9V Vsup
TSD
+
V
CPH
5V
8
Vz
5
R
Q
S
Q
1
μ
A
1
μ
A
R
S
相關PDF資料 |
PDF描述 |
|---|---|
| FAN7544N | Terminal Block; RoHS Compliant:Yes RoHS Compliant: Yes |
| FAN7548 | Dual LCD Back Light Inverter Drive IC |
| FAN7548G | Dual LCD Back Light Inverter Drive IC |
| FAN7554 | Versatile PWM Controller |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| FAN7544N | 功能描述:開關變換器、穩壓器與控制器 Electronic Ballast Controller RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| FAN7546MX | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| FAN7547A | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:LCD Backlight Inverter Drive IC |
| FAN7547AM | 功能描述:LCD 驅動器 CCFL BACK LIGHT IC RoHS:否 制造商:Maxim Integrated 數位數量:4.5 片段數量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
| FAN7547AMX | 功能描述:LCD 驅動器 CCFL BACK LIGHT IC RoHS:否 制造商:Maxim Integrated 數位數量:4.5 片段數量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
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