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參數(shù)資料
| 型號(hào)： | MX841BE |
| 廠商： | IXYS CORP |
| 元件分類： | 穩(wěn)壓器 |
| 中文描述： | 2 A SWITCHED CAPACITOR REGULATOR, 1300 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | ROHS COMPLIANT, MS-012-AA, SOIC-8 |
| 文件頁(yè)數(shù)： | 3/6頁(yè) |
| 文件大?。?/td> | 208K |
| 代理商： | MX841BE |
MX841
IXYS
AC Electrical Characteristics
VDD=3.0V, RSENSE=5; VCTRL=1.0V, L=6.8H; CBYP=1F, TA = -40
oC to +85oC, Typical Values at +25oC
Unless otherwise specified
Parameter
Condition
Min
Typ
Max
Oscillator Frequency
0.6
1.0
1.3
MHz
Duty Cycle
72.5
%
Pin Description
Pin No.
Pin Name
Description
1, 4
SW
Power Switch. Connects the drain of the internal high voltage N-channel
MOSFET to the Inductor and Schottky Diode to generate the LED boost
voltage. This voltage is determined by the total forward bias voltage of the
LED series string and the Isense resistor value. (Note: Both pins must be
connected.)
2
Analog GND
Analog Ground (Note: Must be connected to a low noise ground source.)
3
Switch GND
Switch Ground (Note: Must be connected to a high current ground source.)
5
VDD
Input supply pin. Input range from 1.1 to 5.5 volts. Must be bypassed with a
low ESR capacitor to GND.
6
OVD
Over Voltage Detect input. Compares the LED boost voltage to the internal
voltage reference. If the boost voltage rises above 22V the OVD circuit
disables the oscillator and N-channel MOSFET until the boost voltage falls
below 18.5V. Must be bypassed with a low ESR capacitor to GND.
7
CTRL
Shutdown and Intensity Control Input. A control voltage above 260mV
enables device operation. A control voltage below 100mV disables device
operation. LED intensity is linearly adjusted with voltages between 260mV
and VDD.
8
Isense
Current Sense Input. The LED bias current is set by connecting a carbon
composite or monolithic resistor from this input to Ground. ISENSE regulates
this current to 1/13 of the CTRL input voltage.
MX841
3
10/04/07
Drawing No. 17023
www.claremicronix.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
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| MX844 | 制造商:IXYS 制造商全稱:IXYS Corporation 功能描述:12 BIT, MULTI-CHANNEL POWER & TEMP SENSOR FOR MONITOR & CONTROL SYSTEMS |
| MX844R | 功能描述:板上安裝溫度傳感器 12-Bit Power & Temp Sensor QFN-28 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| MX844RTR | 功能描述:板上安裝溫度傳感器 12-Bit Power & Temp Sensor QFN-28 on T&R RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
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