HIP4080AIPZ

The HIP4080AIPZ is a high frequency medium voltage Full Bridge N-channel FET Driver IC. The HIP4080A includes an input comparator, used to facilitate the "hysteresis" and PWM modes of operation. Its HEN (high enable) lead can force current to freewheel in the bottom two external power MOSFETs, maintaining the upper power MOSFETs off. Since it can switch at frequencies up to 1MHz, the HIP4080A is well suited for driving voice coil motors, switching power amplifiers and power supplies. HIP4080A can also drive medium voltage brush motors and two HIP4080As can be used to drive high performance stepper motors, since the short minimum "on-time" can provide fine micro-stepping capability. Short propagation delays of approximately 55ns maximize control loop crossover frequencies and dead-times which can be adjusted to near zero to minimize distortion, resulting in precise control of the driven load.

• Drives N-channel FET full bridge including high side chop capability
• Bootstrap supply maximum voltage to 95VDC
• Drives 1000pF load at 1MHz in free air at 50°C with rise and fall times of typically 10ns
• User-programmable dead time
• Charge-pump and bootstrap maintain upper bias supplies
• DIS (Disable) pin pulls gates low
• Input logic thresholds compatible with 5 to 15V logic levels
• Very low power consumption
• Under-voltage protection

Applikationer

Power Management, Motor Drive & Control, Computers & Computer Peripherals