| IR IRS26310D三相马达驱动方案 |
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| 作者：未知 来源：IR 点击数：179 更新时间：2008-5-21 |
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IR公司的IRS26310DJ是三相600V马达驱动器,它集成了功率MOSFET和IGBT栅极驱动器,有三个高边和低边的输出通路,工作电压高达600V,在20V MOS栅极驱动时可提供200mA/350mA的驱动电流,并提供完整的保护特性和输入滤波特性,广泛应用在永磁马达驱动,工业马达驱动以及微型逆变器驱动等.本文介绍了IRS26310DJ的主要性能, 方框图, 功能方框图以及典型应用电路图和连接图.
IR’s Three-Phase 600V IC with DC Bus Sensing and Negative Voltage Spike Immunity Boosts Robustness and Reliability in Motor Drives
The IRS26310DJPBF is a high voltage, high speed power MOSFET and IGBT driver with three independent high and low side referenced output channels for 3-phase applications. This IC is designed to be used with low-cost bootstrap power supplies; the bootstrap diode functionality has been integrated into this device to reduce the component count and the PCB size. Proprietary HVIC technology enables ruggedized monolithic construction. Logic inputs are compatible with CMOS or LSTTL outputs, down to 3.3 V logic. A current trip function which terminates all six outputs can be derived from an external current sense resistor. An enable
function is available to terminate all six outputs simultaneously. An open-drain FAULT signal is provided to indicate that an overcurrent or a VCC undervoltage shutdown has occurred. Overcurrent fault conditions are cleared automatically after a delay programmed externally via an RC network connected to the RCIN input.
The output drivers feature a high pulse current buffer stage designed for minimum driver cross-conduction.
Propagation delays are matched to simplify use in high frequency applications. The floating channel can be used to drive N-channel power MOSFETs or IGBTs in the high side configuration which operates up to 600 V.
A DCbus sensing is provided using an external divider. Over Voltage DCbus protection is activate when DCbus exceed an externally adjustable threshold, activating zero-vector braking mode (all Low side output turn-on, all High side output-turn-off).
IRS26310DJ主要特性:
Drives up to six IGBT/MOSFET power devices
Gate drive supplies up to 20 V per channel
Integrated bootstrap functionality
DC bus sensing with Over Voltage protection
Over-current protection
Over-temperature shutdown input
Advanced input filter
Integrated deadtime protection
Shoot-through (cross-conduction) protection
Under voltage lockout for VCC & VBS
Enable/disable input and fault reporting
Adjustable fault clear timing
Separate logic and power grounds
3.3 V input logic compatible
Tolerant to negative transient voltage
Designed for use with bootstrap power supplies
Matched propagation delays for all channels
-40 °C to 125 °C operating range
RoHS compliant
IRS26310DJ典型应用:
Permanent magnet motor drives for appliances
Industrial drives
Micro inverter drives
图1. IRS26310DJ方框图
图2. IRS26310DJ典型应用电路图
图3. IRS26310DJ功能方框图
图4. IRS26310DJ典型连接图
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