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參數資料
| 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： | 14/15頁 |
| 文件大小： | 262K |
| 代理商： | TSM1052 |
Application information
TSM1052
8/15
4
Application information
4.1
Typical application schematic
Figure 15. Typical adapter or battery charger application using the device
In the above application schematic, the device is used on the secondary side of a flyback
adapter (or battery charger) to provide an accurate control of voltage and current. The
above feedback loop is made with an optocoupler.
4.2
Voltage and current control
4.2.1
Voltage control
The voltage loop is controlled via a first transconductance operational amplifier, the voltage
divider R1, R2, and the optocoupler which is directly connected to the output. Its possible to
choose the values of R1 and R2 resistors using Equation 1:
Equation 1
where Vout is the desired output voltage.
As an example, with R1 = 100 k
and R2 = 27 k, V
OUT = 5.7 V
Rsense
Iout
Vout
Vctrl
GND
Vsense
Ictrl
OUT
Vcc
1.210 V
200 mV
+
-
+
-
+
1
2
3
5
4
6
R1
R2
TSM1052
Ric2
Ric1
Cic1
Cvc1
Rvc1
Rled
Rsense
Iout
Vout
Vctrl
GND
Vsense
Ictrl
OUT
Vcc
1.210 V
200 mV
+
-
+
-
+
1
2
3
5
4
6
R1
R2
TSM1052
Ric2
Ric1
Cic1
Cvc1
Rvc1
Rled
a)
b)
2
1
ref
out
R
)
R
(
V
+
=
ref
out
2
1
V
)
V
(
R
=
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TSM1052_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Constant voltage and constant current controller for battery chargers and adapters |
| TSM105CD | 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 |
| 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 |
| TSM105D | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER FOR BATTERY CHARGERS AND ADAPTORS |
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