- 您现在的位置：买卖IC网 > PDF目录98281 > TPS40131RHBTG4 (TEXAS INSTRUMENTS INC) SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PQCC32 PDF资料下载
参数资料
| 型号： | TPS40131RHBTG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PQCC32 |
| 封装： | GREEN, PLASTIC, QFN-32 |
| 文件页数： | 7/40页 |
| 文件大小： | 940K |
| 代理商： | TPS40131RHBTG4 |
第1页第2页第3页第4页第5页第6页当前第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页
www.ti.com
R1
L1
DCR
C1
To CSRTx
To CSx
VOUT
VIN
+
VC
R1 +
L1
DCR
C1
(11)
V
C + VIN * VOUT
V
OUT
R1
C1
f
SW
V
IN
) IOC
DCR
(12)
R1
L1
DCR
C1
To CSRTx
To CSx
R2
VOUT
VIN
+
VC
R1 R2 +
L1
DCR
C1
(13)
R2
R1 ) R2
(14)
SLVS635 – FEBRUARY 2007
Figure 5. Inductor DCR Current Sense Approach
The inductor L1 consists of inductance, L, and resistance, DCR. The time constant of the inductor: L / DCR
should equal the R1
×C1 time constant. Then choosing a value for C1 (0.1 μF is a good choice) solving for R1 is
shown in Equation 11.
As the DC load increases the majority of the voltage, VC, is determined by (IOC ×DCR), where IOC is the per
phase DC output current. It is important that at the overcurrent set point that the peak voltage of VC does not
exceed 60 mV, the maximum differential input voltage. If the voltage VC exceeds 60 mV, a resistor, R2,can be
added in parallel with C1 as shown in Figure 6. Adding R2 reduces the equivalent inductor DCR by the ratio
shown in Equation 14
Figure 6. Using Resistor R2 to Reduce the Current Sense Amplifier Voltage
The parallel combination of R1 and R2 is shown in Equation 13.
The ratio shown in Equation 14 provides the required voltage attenuation.
15
相关PDF资料 |
PDF描述 |
|---|---|
| TPS40131RHBR | SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PQCC32 |
| TPS40132RHBR | 40 A SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PQCC32 |
| TPS40197RGYR | SWITCHING CONTROLLER, 520 kHz SWITCHING FREQ-MAX, PQCC16 |
| TPS40200MDREPG4 | SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO8 |
| TPS40211DRCTG4 | SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO10 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS40132 | 制造商:TI 制造商全称:Texas Instruments 功能描述:TWO-PHASE, SYNCHRONOUS BUCK CONTROLLER WITH INTEGRATED MOSFET DRIVERS |
| TPS40132RHBR | 功能描述:DC/DC 开关控制器 2Ch Multiphase Cntrlr 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 |
| TPS40132RHBRG4 | 功能描述:DC/DC 开关控制器 2Ch Multiphase Cntrlr 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 |
| TPS40132RHBT | 功能描述:DC/DC 开关控制器 2Ch Multiphase Cntrlr 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 |
| TPS40132RHBTG4 | 功能描述:DC/DC 开关控制器 2Ch Multiphase Cntrlr 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 |
发布紧急采购，3分钟左右您将得到回复。