概览
描述
The ISL81100 is a 100V synchronous buck controller that generates a stepped-down output for various applications in industrial and general-purpose segments. The ISL81100 uses fixed frequency peak current mode PWM control. The internal oscillator is adjustable from 100kHz to 2MHz and can be synchronized to an external clock signal for frequency synchronization and phase interleaving applications. It can support current sharing for parallel applications.
特性
- Wide input voltage range: 4.5V to 100V
- Wide output voltage range: 0.8V to 96V
- Two MOSFET drivers with adaptive shoot-through protection
- Constant output voltage and output current feedback loop control
- Support current sharing
- External clock sync
- Programmable soft start
- Supports startup into pre-biased rails
- Programmable frequency: 100kHz to 2MHz
- PGOOD indicator
- Output current monitor
- Selectable mode between PWM/DE
- Low shut down current: 4μA
- Complete protection: OCP (pulse by pulse and optional hiccup or constant current mode), negative peak current limit, OVP, OTP, and UVP
- 5mm x 5mm TQFN package
- -40°C to +125°C operating temperature operating temperature
产品对比
应用
设计和开发
软件与工具
开发板与套件
评估
100V Synchronous Buck Controller EVB with 18V to 100V Input Range and 12V 10A Output
The ISL81100EVAL1Z evaluation board features the ISL81100, a 100V high voltage synchronous buck controller that offers external soft-start, independent enable functions, and integrates UV/OV/OC/OT protection. A programmable switching frequency ranging from 100kHz to 2MHz helps to optimize...
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评估
100V Buck Controller 2-Phase Evaluation Board
The ISL81100EVAL2Z 2-phase evaluation board features the ISL81100, a 100V high-voltage synchronous buck controller that offers external soft-start, independent enable functions, and integrates UV/OV/OC/OT protection. A programmable switching frequency ranging from 100kHz to 1MHz helps to...
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