| 3-PHASE BRIDGE DRIVER
DESCRIPTION
The UTC UTR2136 is high voltage, high speed power MOSFET
and IGBT drivers with three independent high and low side
referenced output channels for 3-phase applications. Proprietary
HVIC technology enables ruggedized monolithic construction. Logic
inputs are compatible with CMOS or LSTTL outputs, down to 3.3V
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
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 channels can be used to
drive N-channel power MOSFETs or IGBTs in the high side
configuration which operates up to 600V.
FEATURES
* Floating channel designed for bootstrap operation
* Fully operational to +600V
* Tolerant to negative transient voltage, dV/dt immune
* Gate drive supply range from 10V to 20V
* Undervoltage lockout for all channels
* Over-current shutdown turns off all six drivers
* Independent 3 half-bridge drivers
* Matched propagation delay for all channels
* Cross-conduction prevention logic
* Low side output out of phase with inputs. High side outputs out of phase
* 3.3 V logic compatible
* Lower di/dt gate drive for better noise immunity
* Externally programmable delay for automatic fault clear |