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參數(shù)資料
| 型號： | TC3683EUA |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | Inverting Charge Pump Voltage Doublers with Active Low Shutdown |
| 中文描述： | 反相電荷泵倍壓器與Active低關(guān)斷 |
| 文件頁數(shù)： | 4/10頁 |
| 文件大?。?/td> | 407K |
| 代理商： | TC3683EUA |
TC3682/TC3683/TC3684
DS21556B-page 4
2002 Microchip Technology Inc.
3.0
DETAILED DESCRIPTION
The TC3682/TC3683/TC3684 inverting charge pumps
perform a -2x multiplication of the voltage applied to
the V
IN
pin. Conversion is performed using two
synchronous
switching matrices and three external
capacitors. When the shutdown input is held at a logic
low, the device goes into a very low power mode of
operation consuming less than 1
μ
A of supply current.
Figure 3-1 is a block diagram representation of the
TC3682/TC3683/TC3684 architecture. The first switch-
ing stage inverts the voltage present at V
IN
and the
second stage uses the
‘
-V
IN
’
output generated from the
first stage to produce the
‘
-2X
’
output function from the
second stage switching matrix.
Each device contains an on-board oscillator that
synchronously controls the operation of the charge
pump switching matrices. The TC3682 synchronously
switches at 12kHz, the TC3683 synchronously
switches at 35kHz, and the TC3684 synchronously
switches at 125kHz. The different oscillator frequencies
for this device family allow the user to trade-off
capacitor size versus supply current. Faster oscillators
can use smaller external capacitors, but will consume
more supply current (see
Section 1.0 Electrical
Characteristics).
When the shutdown input is in a low state, the oscillator
and both switch matrices are powered off placing the
TC3682/TC3683/TC3684 in the shutdown mode.
When the V
IN
supply input is powered from an external
battery, the shutdown mode minimizes power
consumption, which in turn will extend the life of the
battery.
FIGURE 3-1:
TC3682/TC3683/TC3684 ARCHITECTURE
SHDN
ENABLE
ENABLE
ENABLE
-2V
IN
-V
IN
+
C
OUT2
V
IN
Switch Matrix
(1st Stage)
Switch Matrix
(2nd Stage)
Oscillator
C1
+
C2
+
+
C
OUT1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TC3684 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Inverting Charge Pump Voltage Doublers with Active Low Shutdown |
| TC3684EUA | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Inverting Charge Pump Voltage Doublers with Active Low Shutdown |
| TC368A | 制造商:Thomas & Betts 功能描述:Cable Tie Mounting Base, 2 x 2, color: natural, adhesive mounted 制造商:Thomas & Betts 功能描述:Bulk 制造商:Thomas & Betts 功能描述:FASTENERSCABLECABLEFASTENERS CABLE ( 制造商:Thomas & Betts 功能描述:TY-RAP ADHESIVE-BACKED CABLE TIE MOUNT; Mount Fixing Type:Adhesive; Mount Material:Nylon 6.6; Mount Color:Natural; Accessory Type:Mounting Base; Body Material:Nylon 6/6; Color:Natural; For Use With:Thomas & Betts Ty-Rap Cable Ties ;RoHS Compliant: Yes 制造商:Thomas & Betts 功能描述:Hook And Loop Fasteners |
| TC368ARS | 制造商:THOMAS & BETTS 功能描述:TY-GRIP MTG BASE ADHESIVE |
| TC36A | 功能描述:鋁質(zhì)電解電容器 - 帶引線 22uF 50Volts RoHS:否 制造商:Kemet 引線類型: 電容:220 uF 容差:20 % 電壓額定值:25 V 工作溫度范圍: 端接類型:Radial 外殼直徑:8 mm 外殼長度:11 mm 引線間隔:5 mm 產(chǎn)品:General Purpose Electrolytic Capacitors 封裝:Bulk |
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