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参数资料
| 型号： | TSM101ACP |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| 封装： | TSSOP-8 |
| 文件页数： | 13/15页 |
| 文件大小： | 117K |
| 代理商： | TSM101ACP |
The current regulation is effective when the voltage
drop across R5 is equal to the voltage on pin 5 of
the TSM101 (assuming that the internal current
source is disabled).
For medium currents (<1A), a voltage drop across
R5 of 200mV = Vr5 is a good value, R5 can be
realized with standard low cost 0.5W resistors in
parallel.
R5 =
Vr5
Ich
, R5 = 0.285
(four 1.2 resistor in
parallel)
R2 and R3 can be chosen using the following
formula :
R2 = R3 x (
Vref
Vr5)
Vr5
CHARGE CONTROL
If the pin 2 is left open, the charge current is nominal
at # 700mA.
If pin 2 is connected to ground, the internal current
source is enabled, the current measurement is
off-setted by a voltage equal to :
Vr4 =Io x R4 with Io = 1.4mA
This can be used to lower the charging current or
eventually to stop the charge, if Vr4 >Vr5
In our example, the current offset is equal to 700 -
200mA = 500mA, representing a voltage offset
Vr4 = 140mV across R4.
The following values are used on the application
board :
R5 = 4 *1.2 0.5W in parallel
R4 = 100
R2 = 1.2k
R3 = 220
R9 = short circuit
R1 = 10k
C2 = 100nF
C5 = 100nF
C1 = output capacitor of the SMPS
C4 = 10F
4 - SCHEMATIC DIAGRAM
Figure 2 represents a schematic of the output
circuit of a ”classical” SMPS using a TL431 for
voltage regulation. This circuit is modified to use
the TSM101 and the final circuit is represented in
figure 3.
Figure 3 : SMPS Using the TSM101
TSM101/A
7/15
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TSM101AD | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| TSM101AI | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:VOLTAGE AND CURRENT CONTROLLER |
| TSM101AID | 功能描述:DC/DC 开关控制器 Voltage/Current Cont RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| TSM101AIDT | 功能描述:DC/DC 开关控制器 Voltage/Current Cont RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| TSM101AIN | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Power Control/Management |
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