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| 型号： | L6732CTR |
| 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： | 27/32页 |
| 文件大小： | 905K |
| 代理商： | L6732CTR |
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1 Summary description
L6732C
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1
Summary description
The controller is an integrated circuit realized in BCD5 (BiCMOS-DMOS, version 5) fabrication
that provides complete control logic and protection for high performance step-down DC-DC and
niPOL converters.
It is designed to drive N-Channel MOSFETs in a synchronous rectified buck topology. The
output voltage of the converter can be precisely regulated down to 600mV with a maximum
tolerance of ±0.8% and it is also possible to use an external reference from 0V to 2.5V.
The input voltage can range from 1.8V to 14V, while the supply voltage can range from 4.5V to
14V. High peak current gate drivers provide for fast switching to the external power section, and
the output current can be in excess of 20A. The PWM duty cycle can range from 0% to 100%
with a minimum on-time (TON, MIN) lower than 100ns making possible conversions with very
low duty cycle at high switching frequency. The device provides voltage-mode control that
includes a selectable frequency oscillator (250KHz or 500KHz).
The error amplifier features a 10MHz gain-bandwidth-product and 5V/s slew-rate that permits
to realize high converter bandwidth for fast transient response. The device monitors the current
by using the RDS(ON) of both the high-side and low-side MOSFET(s), eliminating the need for a
current sensing resistor and guaranteeing an effective over-current-protection in all the
application conditions. When necessary, two different current limit protections can be externally
set through two external resistors.
During the soft-start phase a constant current protection is provided while after the soft-start the
device enters in hiccup mode in case of over-current. During the soft-start, the sink mode
capability is disabled in order to allow a proper start-up also in pre-biased output voltage
conditions. After the soft-start the device can sink current. Other features are Power-Good,
Master/Slave synchronization (with 180° phase shift), over-voltage-protection, feed-back
disconnection and thermal shutdown. The HTSSOP16 package allows the realization of really
compact DC/DC converters.
相关PDF资料 |
PDF描述 |
|---|---|
| L6732 | SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| L6732TR | SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| L6788ATR | 3-CHANNEL POWER SUPPLY SUPPORT CKT, QCC40 |
| L6788A | 3-CHANNEL POWER SUPPLY SUPPORT CKT, QCC40 |
| L6910A | 1.3 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| L6732TR | 功能描述:DC/DC 开关控制器 VOLTAGE REGULATOR 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 |
| L6733 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Advanced modular synchronous PWM controller |
| L6733TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Advanced modular synchronous PWM controller |
| L6738 | 功能描述:电流型 PWM 控制器 Single-Phase SD Cont 5V to 12V bus 1.5V RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| L6738A | 功能描述:电流型 PWM 控制器 Single-phase PWM Light Load EFF RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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