MPQ8039 – HIGH CURRENT POWER HALF BRIGDE, AEC-Q100 QUALIFIED
MPQ8039 Rev.1.02 www.MonolithicPower.com 6
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PIN FUNCTIONS
Pin # Name Description
1 PWM
Driver Logic Input. Drive PWM with the signal that controls the MPQ8039 output. Drive
PWM high to turn on the high-side switch; drive PWM low to turn on the low-side switch.
2 SP
Power Supply Input. Connect SP to the positive side of the input power supply. Bypass SP
to GND as close to the IC as possible.
3 SW
Switched Output. SW is the power output of the MPQ8039. Connect the output LC filter to
SW. SW is valid approximately 100μs after SP goes high.
4 GND Ground. (Note: Connect the exposed pad on the bottom side to Pin 4).
5 BS
Bootstrap Supply. BS powers the high-side gate of the MPQ8039. Connect a 0.1μF or
greater capacitor between BS and SW.
6 SHDN
Shutdown Input. SHDN enables/disables the MPQ8039. Drive SHDN low to turn on the
MPQ8039, drive it high to turn it off. If not used, connect SHDN to GND.
7 DRV
Gate Drive Supply Bypass. The voltage at DRV is supplied from an internal regulator from
SP. DRV powers the internal circuitry and internal MOSFET gate drives. Bypass DRV to
GND with a 0.1μF to 10μF capacitor.
8 N/C
