LM5104SD ,High Voltage Half-Bridge Gate Driver with Adaptive DelayApplicationsbe added, proportional to an external setting resistor. Ann Current Fed Push-Pull Power ..
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LM5104M-LM5104SD
High Voltage Half-Bridge Gate Driver with Adaptive Delay
LM5104
High Voltage Half-Bridge Gate Driver with Adaptive
Delay
General DescriptionThe LM5104 High Voltage Gate Driveris designedto drive
boththe high side andthe low side N-Channel MOSFETsin synchronous buck configuration. The floating high-side
driveris capableof working with supply voltagesupto 100V.
The high side and low side gate driversare controlled froma
single input. Each changein stateis controlledinan adap-
tive mannerto prevent shoot-through issues.In additionto
the adaptive transition timing,an additional delay time can added, proportionaltoan external setting resistor.An
integrated high voltage diodeis providedto charge high side
gate drive bootstrap capacitor.Arobust level shifter operates high speed while consuming low power and providing
clean level transitions fromthe control logictothe high side
gate driver. Under-voltage lockoutis providedon both the
low side andthe high side power rails. This deviceis avail-
ableinthe standard SOIC-8pin and the LLP-10 pin pack-
ages.
Features Drives botha high side and low side N-channel
MOSFET Adaptive rising and falling edges with programmable
additional delay Single input control Bootstrap supply voltage rangeupto 118V DC Fast turn-off propagation delay(25ns typical) Drives 1000pF loads with15ns rise andfall times Supplyrail under-voltage lockout
Typical Applications Current Fed Push-Pull Power Converters High Voltage Buck Regulators Active Clamp Forward Power Converters Half and Full Bridge Converters
Package SOIC-8 LLP-10(4 mmx4mm)
Simplified Block DiagramFebruary 2005
LM5104
High
oltage
Half-Bridge
Gate
Driver
with
Adaptive
Delay
