Darlington driver ic

Darlington devices are high-voltage, high-current switch arrays containing multiple open-collector Darlington pairs or multiple Darlington transistors with common emitters, and integral suppression diodes for inductive loads. The nominal current rating of each output is mA for the 7- and 8-output devices and up to A for quad-output devices. Bring in some muscle to your output pins with 8 mighty Darlingtons! This DIP chip contains 8 drivers that can sink mA from a 50V supply and has kickback diodes included inside for driving coils. This will let your little microcontroller or microcomputer power solenoids, DC motors (in one direction), and unipolar stepper www.doorway.rubility: In stock. Darlington Driver (ULNA) This is an 18 pin ‘chip’ that contains 8 darlington transistors similar in value to the BCX38C. The ‘chip’ also contains internal back emf suppression diodes and so no external 1N diodes are required when driving motors and relays.

Description Bring in some muscle to your output pins with 8 mighty Darlingtons! This DIP chip contains 8 drivers that can sink mA from a 50V supply and has kickback diodes included inside for driving coils. This will let your little microcontroller or microcomputer power solenoids, DC motors (in one direction), and unipolar stepper motors. Darlington Driver (ULNA) This is an 18 pin ‘chip’ that contains 8 darlington transistors similar in value to the BCX38C. The ‘chip’ also contains internal back emf suppression diodes and so no external 1N diodes are required when driving motors and relays. Darlington transistor output current is given as Ic = IB (β1 + β2 + β1 β2), IB= IC / (β1 + β2 + β1 β2) Current gains, β1 = 50 and β2 = 60 So, IB= / (50 + 60 + (60 × 50)) IB = mA From the above calculation, it is clear that with small base current we can switch the larger lamp loads.

8-channel PNP darlington array datasheet, cross reference, circuit and application notes in pdf format. Photo of a darlington driver I.C.. The eight NPN Darlington connected transistors are ideally suited for interfacing between low logic level digital. transistor array. Darlington pairs that feature high-voltage outputs with Applications include relay drivers, hammer drivers.