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參數(shù)資料
| 型號： | TC2684EUART |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 170 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | MSOP-8 |
| 文件頁數(shù)： | 2/7頁 |
| 文件大?。?/td> | 710K |
| 代理商： | TC2684EUART |
2
TC2682
TC2683
TC2684
Inverting Charge Pump
Voltage Doublers
TC2682/3/4-1 8/14/00
2001 Microchip Technology Inc.
DS21548A
ABSOLUTE MAXIMUM RATINGS*
Input Voltage (VIN to GND) ......................... +6.0V, - 0.3V
Output Voltage (VOUT to GND) ................. -12.0V, + 0.3V
Current at VOUT Pin ................................................ 20mA
Short-Circuit Duration VOUT to GND ...................Indefinite
Operating Temperature Range ............... -40
°C to +85°C
Power Dissipation (TA
≤ 70°C) 8-Pin MSOP ...............320mW
Storage Temperature (Unbiased) ......... - 65
°C to +150°C
Lead Temperature (Soldering, 10sec) .................. +260
°C
*This is a stress rating only and functional operation of the device at these
or any other conditions above those indicated in the operational sections of
the specifications is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS: TA = -40
°C to +85°C, VIN = + 5V, C1 = C2 = 3.3F (TC2682); C1 = C2 =
1
F (TC2683); C1 = C2 = 0.33F (TC2684); SHDN = GND, unless otherwise noted. Typical values are at TA = +25°C
Symbol
Parameter
Device
Test Conditions
Min
Typ
Max
Unit
IDD
Supply Current
TC2682
—
95
160
A
TC2683
—
225
480
TC2684
—
700
1500
VMIN
Minimum Supply Voltage
All
RLOAD = 1k
1.8
——
V
VMAX
Maximum Supply Voltage
All
RLOAD = 1k
——
5.5
V
FOSC
Oscillator Frequency
TC2682
8.4
12
15.6
kHz
TC2683
24.5
35
45.5
TC2684
65
125
170
VEFF
Voltage Conversion Efficiency
All
RLOAD =
∞
95
99
—
V
ROUT
Output Resistance
All
ILOAD = 0.5mA to10mA
—
120
170
NOTES: 1. Capacitor contribution is approximately 20% of the output impedance (ESR = 1/pump frequency x capacitance).
PIN DESCRIPTION
Pin No.
Symbol
Description
1C1–
C1 Commutation Capacitor Negative Terminal
2C2+
C2 Commutation Capacitor Positive Terminal
3C2–
C2 Commutation Capacitor Negative Terminal
4VOUT
Doubling Inverting Charge Pump Output (– 2 x VIN)
5
GND
Ground
6VIN
Positive Power Supply Input
7C1+
C1 Commutation Capacitor Positive Terminal
8
NC
No Connection
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