A 15-lead flat package IC designed to accept TTL logic levels and drive inductive loads such as relays solenoids DC motors and stepping motors. Two inhibit inputs are provided to disable the device independently of the input signals. SpecificationsPin 4 supply voltage7.5V to 46VPin 9 supply voltage5V 7V maxQuiescent supplycurrent pin 415mAcurrent pin 95mASource saturationvoltage at 1A1.2Vvoltage at 2A1.8VSink saturationvoltage at 1A1.2Vvoltage at 2A1.7VTotal drop at 1A3.4VTotal drop at 2A5.2VCommutationfrequency25kHz
The L293D is a monolithic integrated high voltage high current 4-channel driver designed to accept standard DTL or TTL logic levels and drive inductive loads such as relays solenoids DC and stepping motors and for switching power transistors. To simplify use as two bridges each pair of channels is equipped with an enable input. A separate supply input is provided for the control logic allowing operation of this at a lower voltage than the output stage. This device is suitable for use in switching applications at frequencies up to 5kHz. It is encapsulated in a 16-pin DIL package. SpecificationsOutput stage supplyvoltageLogic level supply VSSto 36VControl logic supplyvoltage4.5V to 36VTotal quiescent outputsupply current2mA inhibit low 16mAinhibit highTotal quiescent logicsupply current16mAInput low voltage-0.3 to 1.5VInput high voltage2.3 to VSS 7V abs. max.Inhibit low voltage-0.3 to 1.5VInhibit high voltage2.3 to VSS 7V abs. max.Low voltage inhibitcurrent30microAHigh voltage inhibitcurrent10microASource outputsaturation voltage1.4V 1A outSink output saturationvoltage1.2V 1A outRise and fall times250nsTurn-on delay750nsTurn-off delay200ns
The MAX4427 is a dual non-inverting monolithic power MOSFET driver designed to convert TTLCMOS inputs to high voltagecurrent outputs. Delay times are virtually independent of VDD and the high current output drivers rapidly charge and discharge the gate capacitance of even the largest power MOSFETs to within millivolts of the supply rails. This produces the power MOSFETs minimum on resistance. The high speed device is ideal for switching power supplies and DCDC convertors as it minimises power loses.The device has easy-to-drive inputs that should be connected to ground if unused. Drivers can be paralleled by connecting both inputs and outputs together. Supplied in an 8-pin DIL package. SpecificationsPower supply4.5V to 18VSupply current2.5mA typ 8mA max.Peak op current1.5A at 18VOutput voltagehighVsubDDsub - 25mV min.low25mV max.Output resistance5Omega typ 12Omega max.Rise time20ns typ.Fall time20ns typ.Delay time25ns typ.