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參數(shù)資料
| 型號(hào)： | TCM829ECT |
| 廠商： | Microchip Technology Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Switched Capacitor Voltage Converters |
| 中文描述： | 開關(guān)電容電壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 75K |
| 代理商： | TCM829ECT |
TCM828/829-4 5/22/00
TCM828
TCM829
2001 Microchip Technology Inc. DS21488A
Switched Capacitor Voltage Converters
FEATURES
I
I
I
I
I
I
I
Charge Pump in 5-Pin SOT-23A Package
>95% Voltage Conversion Efficiency
Voltage Inversion and/or Doubling
Low 50
μ
A (TCM828) Quiescent Current
Operates from +1.5V to +5.5V
Up to 25mA Output Current
Only Two External Capacitors Required
APPLICATIONS
I
I
I
I
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LCD Panel Bias
Cellular Phones
Pagers
PDAs, Portable Dataloggers
Battery-Powered Devices
GENERAL DESCRIPTION
The TCM828/829 are CMOS “charge-pump” voltage
converters in ultra-small 5-Pin SOT-23A packages. They
invert and/or double an input voltage which can range from
+1.5V to +5.5V. Conversion efficiency is typically >95%.
Switching frequency is 12kHz for the TCM828 and 35kHz for
the TCM829.
External component requirement is only two capacitors
(3.3
μ
F nominal) for standard voltage inverter applications.
With a few additional components a positive doubler can
also be built. All other circuitry, including control, oscillator,
power MOSFETs are integrated on-chip. Supply current
is 50
μ
A (TCM828) and 115
μ
A (TCM829).
The TCM828 and TCM829 are available in a 5-Pin
SOT-23A surface mount package.
TYPICAL OPERATING CIRCUIT
ORDERING INFORMATION
Part No.
Package
Temp. Range
T
CM828ECT
T
CM829ECT
NOTE: 5-Pin SOT-23A is equivalent to EIAJ SC-74A.
5-Pin SOT-23A
5-Pin SOT-23A
– 40
°
C to +85
°
C
– 40
°
C to +85
°
C
PIN CONFIGURATION
TCM828
TCM829
V
IN
V
–
OUTPUT
C
+
C
–
C
1
C
2
INPUT
GND
OUT
C+
C
–
OUT
TCM828ECT
TCM829ECT
1
2
3
5
GND
VIN
4
*5-Pin SOT-23A
NOTE: *5-Pin SOT-23A is equivalent to EIAJ SC-74A
Voltage Inverter
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| TCM829ECT713 | 功能描述:電荷泵 Switched CAP RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| TCM8400PN | 制造商:Texas Instruments 功能描述: |
| TCM8401APNR | 制造商:Texas Instruments 功能描述: |
| TCM8401PN | 制造商:Texas Instruments 功能描述: |
| TCM8401PNR | 制造商:Texas Instruments 功能描述: |
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