| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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3,200 pcs
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3200 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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279 pcs
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279 pcs | On Request | 1 | On Request | On Request | 17+ | On Request | On Request | |
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45 pcs
|
45 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The UC3637N from Texas Instruments is a pulse width modulator circuit designed for PWM motor drive and amplifier applications. It supports both uni-directional and bi-directional drive circuits, offering increased efficiency and reduced component costs when replacing conventional drivers.
This monolithic device integrates a sawtooth oscillator, an error amplifier, and two PWM comparators with ±100mA output stages. Protection features include under-voltage lockout, pulse-by-pulse current limiting, and a shutdown port with a temperature-compensated threshold. The UC3637N is characterized for operation from 0°C to 70°C.
Key electrical specifications include a supply voltage range of ±2.5V to ±20V and dual 100mA source/sink output drivers. The device is suitable for general-purpose applications and features a parallel interface. It is available in an 18-PDIP package for through-hole mounting.
This controller is particularly useful for applications requiring precise control over DC motor speed and direction. Its integrated features simplify design and reduce the need for external components, making it a cost-effective solution for various motor control systems.
| Qty | Low | High |
|---|---|---|
| 1+ | $8.49 | $8.49 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The UC3637N operates from a dual supply voltage range of ±2.5V to ±20V.
The UC3637N is available in an 18-pin DIP (0.300", 7.62mm) through-hole package, also referred to as 18-PDIP.
The UC3637N has an operating temperature range of 0°C to 70°C.
The output current at pins 4 and 7 is 500mA source/sink, and the error amplifier output at pin 17 is ±20mA.
The oscillator accuracy is ±5% initial and ±10% over temperature.