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參數(shù)資料
| 型號(hào)： | EL7630IWTZ-T7A |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | White LED Boost Regulator |
| 中文描述： | 0.35 A SWITCHING REGULATOR, 1900 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | ROHS COMPLIANT, TSOT-5 |
| 文件頁(yè)數(shù)： | 4/7頁(yè) |
| 文件大?。?/td> | 223K |
| 代理商： | EL7630IWTZ-T7A |
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
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| EL7640A | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:TFT-LCD DC/DC with Integrated Amplifiers |
| EL7640AILTZ | 功能描述:LCD 驅(qū)動(dòng)器 EL7640AILTZ TFT-LCD DC-DC W/INTEGRTD AMP RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時(shí)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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