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參數資料
| 型號： | HT7627-8SOP-A |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數： | 1/6頁 |
| 文件大小： | 77K |
| 代理商： | HT7627-8SOP-A |
HT7627
PFM Step-up DC/DC Converter & Voltage Detector
Block Diagram
Pin Assignment
Rev. 1.00
1
January 18, 2002
Features
High output voltage accuracy: 5%
Low ripple and low noise
Low start-up voltage
(when the output current is 1mA): 0.95V
Lowcurrentconsumption:14 Awith1.5Vinput(typ.)
Fixed output voltage: 2.7V
Built-in 2.1V (typ.) voltage detector
8-pin SOP package
General Description
The HT7627 DC/DC converter with built in voltage de-
tector is a high performance CMOS IC, suitable for use
in battery-powered system application with low noise
and low supply current. The HT7627 consists of two ma-
jor parts, one is DC/DC converter and the other is volt-
age detector. The DC/DC converter part consists of
referencevoltagesource,erroramplifier,controltransis-
tor, oscillation circuit and output voltage setting resistor.
The voltage detector part consists of a high-precision
and low power consumption standard voltage source, a
comparator, hysteresis circuit and an output driver. As
external parts, a coil, a diode, and a capacitor are avail-
able for obtaining a constant output (2.7V) higher than
the input voltage for the DC/DC converter part.
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Applications
Pager
RF Mouse/Keyboard
相關PDF資料 |
PDF描述 |
|---|---|
| HT7627 | PFM Step-up DC/DC Converter & Voltage Detector |
| HT7660 | CMOS Switched-Capacitor Voltage Converter(CMOS可變電容變壓器) |
| HT7700 | Key & Touch Linear Dimmer |
| HT7700A | Key & Touch Linear Dimmer |
| HT7700B | Key & Touch Linear Dimmer |
相關代理商/技術參數 |
參數描述 |
|---|---|
| HT7630(16DIP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Motion/Proximity Detector |
| HT7630(16SOIC) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Motion/Proximity Detector |
| HT7660 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CMOS Switched-Capacitor Voltage Converter |
| HT7660(8DIP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DC-to-DC Voltage Converter |
| HT7660(8SOIC) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DC-to-DC Voltage Converter |
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