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参数资料
| 型号： | L6731D |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | HTSSOP-16 |
| 文件页数： | 4/23页 |
| 文件大小： | 386K |
| 代理商： | L6731D |
Device description
L6731D
12/23
5.5
Error amplifier
5.6
Soft-start
When both VCC and VIN are above their turn-ON thresholds (VIN is monitored by the OCH
pin) the start-up phase takes place. Otherwise the SS pin is internally shorted to GND. At
start-up, a ramp is generated charging the external capacitor CSS with an internal current
generator. The initial value for this current is 35 A and charges the capacitor up to 0.5V.
After that it becomes 10 A until the final charge value of approximately 4 V (see Figure 6.).
Figure 5.
Error amplifier reference
2.5V
100K
DDR-IN
VCCDR
0.6V/500KHz
0.6V/250KHz
DDR-IN/2
250KHz
Error Amplifier Ref.
Figure 6.
Device start-up: voltage at the SS pin
VCC
VIN
t
0.5V
4V
Vcc
Vin
Vss
4.2V
1.25V
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相关代理商/技术参数 |
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| L6731DTR | 功能描述:DC/DC 开关控制器 Adjustable Step Down Controller 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 |
| L6732 | 功能描述:DC/DC 开关控制器 Adjustable Step Down Controller 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 |
| L6732_08 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification |
| L6732_0906 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification |
| L6732C | 功能描述:DC/DC 开关控制器 Adjustable Step Down Controller 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 |
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