300kHz, Dual, 180° Out-of-Phase, Step-Down PWM Controller Evaluation Board
The ISL6440EVAL1Z evaluation board highlights the operation of the ISL6440 300kHz dual, 180° out-of-phase, step-down pulse width modulation (PWM) controller in an...
300kHz Dual, 180 Out-of-Phase, Step-Down PWM Controller
NOTICE - The following device(s) are recommended alternatives:
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概览
简介
The ISL6440 is a high-performance, dual-output PWM controller optimized for converting wall adapter, battery or network intermediate bus DC input supplies into the system supply voltages required for a wide variety of applications. Each output is adjustable down to 0. 8V. The two PWMs are synchronized 180o out of phase reducing the RMS input current and ripple voltage. The ISL6440 incorporates several protection features. An adjustable overcurrent protection circuit monitors the output current by sensing the voltage drop across the lower MOSFET. Hiccup mode overcurrent operation protects the DC/DC components from damage during output overload/short circuit conditions. Each PWM has an independent logic-level shutdown input (SD1 and SD2). A single PGOOD signal is issued when soft-start is complete on both PWM controllers and their outputs are within 10% of the set point. Thermal shutdown circuitry turns off the device if the junction temperature exceeds +150°C.
特性
- Wide Input Supply Voltage Range
- 5.6V to 24V
- 4.5V to 5.6V
- Two Independently Programmable Output Voltages
- Switching Frequency 300kHz
- Out of Phase PWM Controller Operation
- Reduces Required Input Capacitance and Power Supply Induced Loads
- No External Current Sense Resistor
- Uses Lower MOSFET's rDS(ON)
- Programmable Soft-Start
- Extensive Circuit Protection Functions
- PGOOD
- UVLO
- Overcurrent
- Overtemperature
- Independent Shutdown for Both PWMs
- Excellent Dynamic Response
- Voltage Feed-Forward with Current Mode Control
- Pb-Free Plus Anneal Available (RoHS Compliant)
应用
应用
- Power Supplies with Two Outputs
- xDSL Modems/Routers
- DSP, ASIC, and FPGA Power Supplies
- Set-Top Boxes
- Dual Output Supplies for DSP, Memory, Logic, µP Core and I/O
- Telecom Systems
文档
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| PDF 525 KB English(英语) | 数据手册 | |
| PDF 295 KB | 白皮书 | |
| PDF 388 KB | End Of Life Notice | |
| PDF 398 KB | 产品变更通告 | |
| PDF 268 KB | 产品变更通告 | |
| PDF 509 KB | 应用文档 | |
| PDF 397 KB | 应用文档 | |
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设计和开发
软件与工具
软件与工具
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Software type
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公司
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|---|---|---|
| iSim:PE Offline Simulation Tool iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.
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Simulator | 瑞萨电子 |
1 item
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开发板与套件
开发板与套件
模型
ECAD 模块
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
| QSOP | Tube | 1000 | 获取样片, | |
| QSOP | Reel | 3000 |
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