SM74104 Series

1.8-A, 100-V half bridge gate driver with 8-V UVLO and adaptive delay

Catalog

1.8-A, 100-V half bridge gate driver with 8-V UVLO and adaptive delay

Part	Current - Peak Output (Source, Sink) [custom]	Current - Peak Output (Source, Sink) [custom]	Gate Type	Package / Case	Driven Configuration	Input Type	Logic Voltage - VIL, VIH	Channel Type	Operating Temperature [Min]	Operating Temperature [Max]	Rise / Fall Time (Typ) [custom]	Rise / Fall Time (Typ) [custom]	Supplier Device Package	Number of Drivers	Voltage - Supply [Min]	Voltage - Supply [Max]	High Side Voltage - Max (Bootstrap) [Max]	Mounting Type	Package / Case [y]	Package / Case [x]
Texas Instruments SM74104SD/NOPB	1.6 A	1.6 A	N-Channel MOSFET	10-WDFN Exposed Pad	Half-Bridge	Non-Inverting	0.8 V 2 V	Synchronous	-40 °C	125 ¯C	600 ns	600 ns	10-WSON (4x4)	2	9 V	14 V	118 V	Surface Mount
Texas Instruments SM74104MAX/NOPB	1.6 A	1.6 A	N-Channel MOSFET	8-SOIC	Half-Bridge	Non-Inverting	0.8 V 2 V	Synchronous	-40 °C	125 ¯C	600 ns	600 ns	8-SOIC	2	9 V	14 V	118 V	Surface Mount	3.9 mm	0.154 in
Texas Instruments SM74104SDX/NOPB	1.6 A	1.6 A	N-Channel MOSFET	10-WDFN Exposed Pad	Half-Bridge	Non-Inverting	0.8 V 2 V	Synchronous	-40 °C	125 ¯C	600 ns	600 ns	10-WSON (4x4)	2	9 V	14 V	118 V	Surface Mount
Texas Instruments SM74104MA/NOPB	1.6 A	1.6 A	N-Channel MOSFET	8-SOIC	Half-Bridge	Non-Inverting	0.8 V 2 V	Synchronous	-40 °C	125 ¯C	600 ns	600 ns	8-SOIC	2	9 V	14 V	118 V	Surface Mount	3.9 mm	0.154 in

Catalog

1.8-A, 100-V half bridge gate driver with 8-V UVLO and adaptive delay

Key Features

• Renewable Energy GradeDrives both a High Side and Low Side N-ChannelMOSFETAdaptive Rising and Falling Edges withProgrammable Additional DelaySingle Input ControlBootstrap Supply Voltage Range up to 118V DCFast Turn-Off Propagation Delay (25 ns Typical)Drives 1000 pF Loads with 15 ns Rise and FallTimesSupply Rail Under-Voltage LockoutTypical ApplicationsCurrent Fed Push-Pull Power ConvertersHigh Voltage Buck RegulatorsActive Clamp Forward Power ConvertersHalf and Full Bridge ConvertersAll trademarks are the property of their respective owners.Renewable Energy GradeDrives both a High Side and Low Side N-ChannelMOSFETAdaptive Rising and Falling Edges withProgrammable Additional DelaySingle Input ControlBootstrap Supply Voltage Range up to 118V DCFast Turn-Off Propagation Delay (25 ns Typical)Drives 1000 pF Loads with 15 ns Rise and FallTimesSupply Rail Under-Voltage LockoutTypical ApplicationsCurrent Fed Push-Pull Power ConvertersHigh Voltage Buck RegulatorsActive Clamp Forward Power ConvertersHalf and Full Bridge ConvertersAll trademarks are the property of their respective owners.

Description

The SM74104 High Voltage Gate Driver is designed to drive both the high side and the low side N-Channel MOSFETs in a synchronous buck configuration. The floating high-side driver is capable of working with supply voltages up to 100V. The high side and low side gate drivers are controlled from a single input. Each change in state is controlled in an adaptive manner to prevent shoot-through issues. In addition to the adaptive transition timing, an additional delay time can be added, proportional to an external setting resistor. An integrated high voltage diode is provided to charge the high side gate drive bootstrap capacitor. A robust level shifter operates at high speed while consuming low power and providing clean level transitions from the control logic to the high side gate driver. Under-voltage lockout is provided on both the low side and the high side power rails. The SM74104 High Voltage Gate Driver is designed to drive both the high side and the low side N-Channel MOSFETs in a synchronous buck configuration. The floating high-side driver is capable of working with supply voltages up to 100V. The high side and low side gate drivers are controlled from a single input. Each change in state is controlled in an adaptive manner to prevent shoot-through issues. In addition to the adaptive transition timing, an additional delay time can be added, proportional to an external setting resistor. An integrated high voltage diode is provided to charge the high side gate drive bootstrap capacitor. A robust level shifter operates at high speed while consuming low power and providing clean level transitions from the control logic to the high side gate driver. Under-voltage lockout is provided on both the low side and the high side power rails.