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参数资料
| 型号： | TCM680COATR |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 21 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | 0.150 INCH, PLASTIC, MS-012, SOIC-8 |
| 文件页数： | 16/18页 |
| 文件大小： | 322K |
| 代理商： | TCM680COATR |
2005 Microchip Technology Inc.
DS21486C-page 7
TCM680
4.5
Maximum Operating Limits
The maximum input voltage rating must be observed.
The TCM680 will clamp the input voltage to 5.8V.
Exceeding this maximum threshold will cause exces-
sive current to flow through the TCM680, potentially
causing permanent damage to the device.
4.6
Switched Capacitor Converter
Power Losses
The overall power loss of a switched capacitor
converter is affected by four factors:
1.
Losses from power consumed by the internal
oscillator, switch drive, etc. These losses will
vary
with
input
voltage,
temperature and
oscillator frequency.
2.
Conduction losses in the non-ideal switches.
3.
Losses due to the non-ideal nature of the
external capacitors.
4.
Losses that occur during charge transfer from
the pump to reservoir capacitors when a voltage
difference between the capacitors exists.
The power loss for the TCM680 is calculated using the
following equation:
EQUATION
PLOSS = (IOUT+)
2 X R
OUT
- + (I
OUT-)
2 X R
OUT
+ + I
IN X VIN
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相关代理商/技术参数 |
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| TCM680CPA | 功能描述:电荷泵 Charge Pump Cnverter RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
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| TCM680EOATR | 功能描述:电荷泵 Charge Pump Cnverter RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| TCM680EPA | 功能描述:电荷泵 Charge Pump Cnverter RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
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