- 您现在的位置：买卖IC网 > PDF目录30713 > L9611C (STMICROELECTRONICS) SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDIP16 PDF资料下载
参数资料
| 型号： | L9611C |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封装： | DIP-16 |
| 文件页数： | 15/15页 |
| 文件大小： | 430K |
| 代理商： | L9611C |
Obsolete
Product(s)
- Obsolete
Product(s)
L9610
9/15
4.5
Short circuit current regulation
The maximum load current in the short circuit condition can be chosen by the value of the
current sensing resistor RS according to :
Two identical VS compatible comparators are provided to realize the short circuit protection.
After reaching the lower threshold voltage (typical value VSI-10 mV), the first comparator
enables the timer and the gate is driven with the full continuous pump voltage : when the
upper threshold voltage value is reached the second comparator maintains the chosen ISC
driving the NMOS gate in continuous mode.
This function, showed in Figure 5., speeds up the switch on phase for a lamp as a load.
4.6
Bandgap voltage reference
The circuit provides a reference voltage which may be used as control input voltage through
a resistive divider. This reference is protected against the short circuit current.
4.7
Charge pump
The charge pump circuit holds the N-MOS gate above the supply voltage during the ON
phase. This circuit consists of an RC astable which drives a comparator with a push-pull
output stage. The external charge pump capacitor CP must be at least equal to the NMOS
parasitic input capacitance.
For fast gate voltage variation CP must be increased or the bootstrap function can be used.
The bootstrap capacitor should be at least 10 times greater than the PowerMOS parasitic
capacitance.
The charge pump voltage VPUMP can reach to :
The circuit is disabled if the supply voltage is higher than VSH.
I
SC
V
SI RS
=
V
PUMP
2V
S
V
BE
–
V
CESAT
–
=
相关PDF资料 |
PDF描述 |
|---|---|
| L9700D | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| L9700 | SPECIALTY ANALOG CIRCUIT, PDIP8 |
| L9911F | BRUSH DC MOTOR CONTROLLER, SFM8 |
| L9911P | BRUSH DC MOTOR CONTROLLER, SFM8 |
| L9942XP1TR | STEPPER MOTOR CONTROLLER, 2.5 A, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| L9612 | 制造商:Leviton Manufacturing Co 功能描述: |
| L9613 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:DATA INTERFACE |
| L9613B | 功能描述:功率驱动器IC Med Spd Data Intrfce RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| L9613B013TR | 功能描述:功率驱动器IC Med Spd Data Intrfce RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| L9615 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:CAN BUS TRANSCEIVER |
发布紧急采购，3分钟左右您将得到回复。