LF2136B
3-Phase Half Bridge Gate Driver
Features
Description
Three floating high-side drivers in bootstrap
operation to 600V
200mA source / 350mA sink output current
capability
Outputs tolerant to negative transients, dV/dt
immune
Wide VCC operating range: 10V to 20V
Logic input 3.3V capability
Internal deadtime of 290ns to protect MOSFETs
Matched propagation delay for all channels
Outputs out of phase with inputs
Schmitt triggered logic inputs
LF2136Bisathree-phasegatedriverICdesignedforhigh
voltage, high speed applications, driving N-channel
MOSFETs and IGBTs in a half-bridge configuration. The
high voltage process enables the LF2136B high sides to
switch up to 600V in a bootstrap operation.
LF2136B logic inputs are compatible with standard
TTL and CMOS levels (down to 3.3V) to interface
easily with controlling devices and are enabled low to
better function in high noise environments. The driver
outputs feature high pulse current buffers designed
for minimum driver cross conduction.
LF2136B offers numerous protection functions. A
shoot-through protection logic prevents both outputs
being high with both inputs low (fault state), an
under-voltage lockout (UVLO) for VCC shuts down all
drivers through an internal fault control, while a UVLO
for VBS shuts down the respective high side output.
Additionally an overcurrent protection will terminate
all six outputs. Both the VCC UVLO and the overcurrent
protection activate an automatic fault clear with a
timing that is adjustable with an external capacitor.
Cross conduction prevention logic
Under Voltage Lockout (UVLO) for all channels
Overcurrent protection shuts down drivers
Applications
3-Phase Motor Inverter Driver
White Goods - Air Conditioner, Washing Machine,
Refrigerator
LF2136B is offered in an SOIC-28 package and
operates over an extended temperature range of
-40 °C to +125 °C .
Industrial Motor Inverter - Power Tools, Robotics
General Purpose 3-Phase Inverter
Ordering Information
Year Year Week Week
Part#
Package Pack / Qty
MARK
YYWW
LF2136BTR
SOIC-28
T&R / 1500
LF2136B
LOT ID
SOIC-28
DS-LF2136B-R02
1