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參數(shù)資料
| 型號： | TC1240ECH |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | Positive Doubling Charge Pump with Shutdown in SOT Package |
| 中文描述： | 積極電荷泵采用SOT封裝，帶有關斷 |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 290K |
| 代理商： | TC1240ECH |
2003 Microchip Technology Inc.
DS21516C-page 3
TC1240/TC1240A
TC1240A ELECTRICAL SPECIFICATIONS
Electrical Specifications:
Unless otherwise noted, typical values apply at T
A
= +25°C. Minimum and maximum
values apply for T
A
= -40° to +85°C, and V
IN
= +5.0V, C
1
= C
2
= 3.3 μF, SHDN = GND.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Supply Current
Shutdown Supply Current
Minimum Supply Voltage
Maximum Supply Voltage
Output Current
Sum of the R
DS(ON)
of the
internal MOSFET Switches
Oscillator Frequency
Switching Frequency
(Note 1)
Shutdown Input Logic High
Shutdown Input Logic Low
Power Efficiency
Voltage Conversion Efficiency
Output Resistance
(Note 2)
I
DD
I
SHDN
V
MIN
V
MAX
I
LOAD
R
SW
—
—
2.5
—
20
—
550
0.01
—
—
—
4
900
1.0
—
5.5
—
8
μA
μA
V
V
mA
R
LOAD
=
∞
SHDN = V
IN
I
LOAD
= 20 mA
F
OSC
F
SW
V
IH
V
IL
P
EFF
V
EFF
R
OUT
—
40
1.4
—
86
99
—
—
160
80
—
—
94
99.96
12
—
—
125
—
0.4
—
—
—
25
kHz
kHz
V
V
%
%
T
A
= -40°C to +85°C
T
A
= -40°C to +85°C
V
IN
= V
MIN
to V
MAX
V
IN
= V
MIN
to V
MAX
I
LOAD
= 5 mA
R
LOAD
=
∞
I
LOAD
= 20 μA
T
A
= -40°C to +85°C
Note 1:
Switching frequency is one-half internal oscillator frequency.
Capacitor contribution is approximately 26% of the output impedance [ESR = 1 / switching frequency x
capacitance].
2:
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相關代理商/技術參數(shù) |
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|---|---|
| TC1240ECHTR | 功能描述:電荷泵 Positive Doubling 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 |
| TC1240ECHTR-CUT TAPE | 制造商:Microchip 功能描述:TC1240 Series 2.5 to 5.5 V Positive Doubling Charge Pump w/ Shutdown - SOT-23-6 |
| TC1240I/CHTR | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Positive Doubling Charge Pumps with Shutdown in a SOT-23 Package |
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