MP1906—80V, HALF-BRIDGE, GATE DRIVER

MP1906 Rev. 1.0

www.MonolithicPower.com

9

1/3/2013

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© 2013 MPS. All Rights Reserved.

OPERATION

Switch Shoot-through Protection

The input signals of HPWM and LPWM are

independently controlled. Input shoot-through

protection

circuitry

prevents

shoot-through

between the TG and BG outputs. Only one of

the FET drivers can be on at one time. If HPWM

is high and LPWM is low, both TG and BG are

OFF.

Under Voltage Lockout

UVLO threshold, both BG and TG outputs will go

the UVLO threshold, both TG and BG will stay

low until there is a rising edge on either HPWM

or LPWM.

under different HPWM and LPWM and UVLO

conditions.

HPWM

TG

BG

LPWM

Figure 3: Input/Output Timing Diagram