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參數(shù)資料
| 型號： | TSM1052 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| 封裝： | LEAD FREE, SOT-23, 6 PIN |
| 文件頁數(shù)： | 2/15頁 |
| 文件大?。?/td> | 262K |
| 代理商： | TSM1052 |
Application information
TSM1052
10/15
Figure 16. Output voltage versus output current
4.3
Compensation
The voltage control transconductance operational amplifier can be fully compensated. Both
of its output and negative input are directly accessible for external compensation
components.
An example of a suitable compensation network is shown in Figure 15. It consists of a
capacitor CVC1 = 2.2 nF and a resistor RCV1 = 470 k in series.
The current-control transconductance operational amplifier can be fully compensated. Both
its output and negative input are directly accessible for external compensation components.
An example of a suitable compensation network is shown in Figure 15. It consists of a
capacitor CIC1 = 2.2 nF and a resistor RIC1 = 22 k in series. In order to increase the
stability of the application it is suggested to add a resistor in series with the optocoupler. An
example of a suitable RLED value could be 330 in series with the optocoupler.
4.4
Start up and short circuit conditions
Under start-up or short-circuit conditions if the device is supplied from SMPS output and the
output voltage is lower than Vcc minimum the current regulation is not guaranteed.
Therefore, the current limitation can only be ensured by the primary PWM module, which
should be chosen accordingly.
If the primary current limitation is considered not to be precise enough for the application,
then a sufficient supply for the device has to be ensured under any condition. It would then
be necessary to add some circuitry to supply the chip with a separate power line. This can
be achieved in numerous ways, including an additional winding on the transformer.
The following schematic shows how to realize a low-cost power supply for the device (with
no additional windings).
Vout
Iout
Voltage regulation
Current regulation
(Vcc of the device independent of output voltage)
Vout
Iout
Voltage regulation
Current regulation
(Vcc of the device independent
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| TSM105CDT | 功能描述:電池管理 Voltage/Current Cont RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| TSM105CLT | 功能描述:電池管理 Voltage/Current Cont RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
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