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参数资料
| 型号： | TPS60401DBVTG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 28 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封装： | GREEN, PLASTIC, SOT-23, 5 PIN |
| 文件页数： | 8/28页 |
| 文件大小： | 787K |
| 代理商： | TPS60401DBVTG4 |
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TPS60400, TPS60401, TPS60402, TPS60403
UNREGULATED 60mA CHARGE PUMP VOLTAGE INVERTER
SLVS324A JULY 2001 REVISED NOVEMBER 2004
16
WWW.TI.COM
APPLICATION INFORMATION
combined doubler/inverter
In the circuit of Figure 27, capacitors CI, C(fly), and CO form the inverter, while C1 and C2 form the doubler. C1
and C(fly) are the flying capacitors; CO and C2 are the output capacitors. Because both the inverter and doubler
use part of the charge-pump circuit, loading either output causes both outputs to decline toward GND. Make
sure the sum of the currents drawn from the two outputs does not exceed 60 mA. The maximum output current at
V(pos) must not exceed 30 mA. If the negative output is loaded, this current must be further reduced.
TPS60400
OUT
C1+
IN
C1
GND
1
2
3
5
4
C(fly)
1
F
CO
1
F
CI
1
F
VI
GND
VI
C1
+
D2
C2
+
V(pos)
+
II ≈ IO + 2 × IO(POS)
Figure 27. TPS60400 as Doubler/Inverter
cascading devices
Two devices can be cascaded to produce an even larger negative voltage (see Figure 28). The unloaded output
voltage is normally 2
× VI, but this is reduced slightly by the output resistance of the first device multiplied by the
quiescent current of the second. When cascading more than two devices, the output resistance rises
dramatically.
TPS60400
OUT
C1+
IN
C1
GND
1
2
3
5
4
C(fly)
1
F
CO
1
F
CI
1
F
VO (2 VI)
GND
VI
GND
TPS60400
OUT
C1+
IN
C1
GND
1
2
3
5
4
CO
1
F
GND
+
C(fly)
1
F
Figure 28. Doubling Inverter
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS60401QDBVRQ1 | 功能描述:电荷泵 Auto Cat Unreg 60mA Chg Pump Vltg Invrtr 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 |
| TPS60402 | 制造商:TI 制造商全称:Texas Instruments 功能描述:UNREGULATED 60-mA CHARGE PUMP VOLTAGE INVERTER |
| TPS60402DBV | 制造商:TI 制造商全称:Texas Instruments 功能描述:UNREGULATED 60-mA CHARGE PUMP VOLTAGE INVERTER |
| TPS60402DBVR | 功能描述:电荷泵 60mA Charge Pump Voltage Inverter 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 |
| TPS60402DBVRG4 | 功能描述:电荷泵 60mA Charge Pump Voltage Inverter 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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