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参数资料
| 型号： | TCM828ECTRT |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 20 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封装： | EIAJ, SC-74A, SOT-23A, 5 PIN |
| 文件页数： | 2/9页 |
| 文件大小： | 71K |
| 代理商： | TCM828ECTRT |
2
TCM828/829-4
5/22/00
Switched Capacitor
Voltage Converters
TCM828
TCM829
2001 Microchip Technology Inc.
DS21488A
ABSOLUTE MAXIMUM RATINGS*
Input Voltage (VIN to GND) ......................... +6.0V, – 0.3V
Output Voltage (OUT to GND) .................... –6.0V, + 0.3V
Current at OUT Pin .................................................. 50mA
Short-Circuit Duration – OUT to GND ................ Indefinite
Operating Temperature Range ............... – 40
°C to +85°C
Power Dissipation (TA ≤ 70°C)
5-Pin SOT-23A ............................................... 240mW
Storage Temperature (Unbiased) ......... – 65
°C to +150°C
Lead Temperature (Soldering, 10 sec) ................. +300
°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 = 0°C to +85°C, VIN = +5V, C1 = C2 = 10F (TCM828), C1 = C2 = 3.3F
(TCM829), unless otherwise noted. Typical values are at TA = +25°C.
Symbol Parameter
Device
Test Conditions
Min
Typ
Max
Unit
IDD
Supply Current
TCM828
TA = +25°C
—
50
90
A
TCM829
—
115
260
V
+
Minimum Supply
RLOAD = 10k: TA = 0°C to +85°C
1.5
—
V
Voltage
V
+
Maximum Supply
RLOAD = 10k
—
5.5
V
Voltage
FOSC
Oscillator Frequency
TCM828
TA = +25°C
8.4
12
15.6
kHz
TCM829
24.5
35
45.5
PEFF
Power Efficiency
ILOAD = 3mA, TA = +25°C—
96
—
%
VEFF
Voltage Conversion
RLOAD = ∞
95
99.9
—
%
Efficiency
ROUT
Output Resistance
IOUT = 5mA, TA = 25°C
—
25
50
TA = 0°C to +85°C—
—
65
ELECTRICAL CHARACTERISTICS: TA = – 40°C to +85°C, VIN = +5V, C1 = C2 = 10F (TCM828), C1 = C2 = 3.3F
(TCM829) unless otherwise noted. Typical values are at TA = +25°C. (Note 2)
Symbol Parameter
Device
Test Conditions
Min
Typ
Max
Unit
IDD
Supply Current
TCM828
—
115
A
TCM829
—
325
V
+
Supply Voltage Range
RLOAD = 10k
1.5
—
5.5
V
FOSC
Oscillator Frequency
TCM828
6
—
20
kHz
TCM829
19
—
54.3
ROUT
Output Resistance
IOUT = 5mA
—
65
PIN DESCRIPTION
Pin No.
(5-Pin SOT-23A)
Symbol
Description
1
OUT
Inverting charge pump output.
2VIN
Positive power supply input.
3C
–
1
Commutation capacitor negative terminal.
4
GND
Ground.
5C1
+
Commutation capacitor positive terminal.
NOTE: 1. Capacitor contribution is approximately 20% of the output impedance [ESR = 1 / pump frequency x capacitance)].
NOTE: 2. All – 40
°C to +85°C specifications above are guaranteed by design.
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