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參數(shù)資料
| 型號： | EL7630 |
| 廠商： | Intersil Corporation |
| 英文描述： | White LED Boost Regulator |
| 中文描述： | 白光LED升壓調節(jié)器 |
| 文件頁數(shù)： | 4/7頁 |
| 文件大?。?/td> | 223K |
| 代理商： | EL7630 |
4
FN7371.0
June 28, 2005
Block Diagram
Pin Functions
LX (Pin 1) -
Switching Pin. Connect to inductor and diode.
GND (Pin 2) -
Ground Pin. Connect to local ground.
FB (Pin 3) -
Feedback Pin. Connect to the cathode of lowest
LED and the sense resistor.
ENAB (Pin 4) -
Enable Pin. Connect to enable signal to
turn-on or off the device.
PGND (Pin 5, SC-70 Package) -
Ground Pin. Connect to
Pin 2 and to local ground.
V
IN
(Pin5/Pin6 SC-70 Package) -
Input Supply Pin.
Connect to the input supply voltage.
Detailed Description
EL7630 uses a constant frequency, current mode control
scheme to provide excellent line and load regulation. It
FIGURE 6. SWITCHING FREQUENCY vs TEMPERATURE
FIGURE 7. PWM DIMMING CURVE (400Hz)
Typical Performance Curves
1.2
1.22
1.24
1.26
1.28
1.3
1.32
1.34
-40
10
60
TEMPERATURE (°C)
S
0
4
8
12
16
20
0
20
40
60
80
100
DUTY-CYCLE (D)
I
O
22
Driver
Controller
Sense
GM
Amplifier
Generator
Generator
95mV
Compensation
PWM
Comparator
Vin
Enable
LX
PGND
FB
in TSOT5 package) GND
EL7630
FET
PWM Logic
Current
1.2MHz Oscillator and Ramp
Bandgap
Reference
GM Amp
(shared with PGND
FIGURE 8. EL7630 BLOCK DIAGRAM
EL7630
相關PDF資料 |
PDF描述 |
|---|---|
| EL7630ICZ | White LED Boost Regulator |
| EL7630IWTZ-T7 | White LED Boost Regulator |
| EL7630IWTZ-T7A | White LED Boost Regulator |
| EL7640ILTZ-T7 | TFT-LCD DC/DC with Integrated Amplifiers |
| EL7641ILTZ-T7 | TFT-LCD DC/DC with Integrated Amplifiers |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| EL7630_06 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:White LED Boost Regulator |
| EL7630ICZ | 制造商:Intersil Corporation 功能描述:LED DRVR 6SEGMENT 2.7V TO 5.5V 6PIN SC-70 - Bulk |
| EL7630ICZ-T7 | 功能描述:LED顯示驅動器 EL7630ICZ WHT LED BOOSTG RoHS:否 制造商:Micrel 數(shù)位數(shù)量:5 片段數(shù)量: 安裝風格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| EL7630ICZ-T7A | 功能描述:LED顯示驅動器 EL7630ICZ WHT LED BOOSTG RoHS:否 制造商:Micrel 數(shù)位數(shù)量:5 片段數(shù)量: 安裝風格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| EL7630IWTZ | 制造商:Intersil Corporation 功能描述:LED DRVR 6SEGMENT 2.7V TO 5.5V 5PIN TSOT - Bulk |
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