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UC3637Q The Texas Instruments UC3637Q is a pulse width modulator circuit designed for PWM motor drive and amplifier applications. It features a supply voltage range of 2.5V to 20V and operates within 0°C to 70°C.
Mfr Part #:

UC3637Q

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC3637Q is a pulse width modulator circuit designed for PWM motor drive and amplifier applications. It features a supply voltage range of 2.5V to 20V and operates within 0°C to 70°C.
✓ Total Stock: 5,000 pcs
$ Price Range: $2.25

UC3637Q Available from 2 distributors

✓ Authorised
✓ Non-Authorised
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UC3637Q Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Function
Interface
Lead Style
Motor Type
Mounting Type
Operating Temperature
Output Configuration
Supplier Device Package
Voltage
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UC3637Q Description

Short technical summary and product information.

The UC3637Q from Texas Instruments is a versatile pulse width modulator (PWM) circuit designed for both uni-directional and bi-directional PWM motor drive and amplifier applications. This monolithic device integrates a sawtooth oscillator, an error amplifier, and two PWM comparators with ±100mA output stages. It offers protection features including under-voltage lockout and pulse-by-pulse current limiting.

 

Key electrical specifications include a wide supply voltage range of ±2.5V to ±20V and an operating temperature range of 0°C to 70°C for the UC3637 variant. The device provides dual 100mA source/sink output drivers and an uncommitted PWM comparator for design flexibility. The shutdown port features a temperature-compensated 2.5V threshold.

 

Packaged in a 20-PLCC (9x9) format, the UC3637Q is suitable for surface mount applications. Its design aims to increase efficiency and reduce component costs when replacing conventional drivers in various motor control systems. The device is characterized for operation over the full military temperature range of -55°C to +125°C for the UC1637, -25°C to +85°C for the UC2637, and 0°C to +70°C for the UC3637.

UC3637Q Quick Information

Product Type: Motor Driver Controller
Canonical Name: UC3637Q Pulse Width Modulator Motor Driver

UC3637Q Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

UC3637Q Estimated Pricing

Qty Low High
1+ $2.25 $2.25

Estimated market price range - modelled values for guidance only, not live distributor offers.

UC3637Q Features

  • Pulse width modulator for motor drive applications.
  • Wide supply voltage range of 2.5V to 20V.
  • Dual 100mA source/sink output drivers.
  • Under-voltage lockout and current limiting.
  • Surface mount 20-PLCC package.

UC3637Q Applications

  • PWM motor drive circuits.
  • Amplifier applications.
  • Uni-directional drive circuits.
  • Bi-directional drive circuits.

UC3637Q FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the UC3637Q?

The UC3637Q operates from 2.5V to 20V.

What is the operating temperature range?

The UC3637Q is specified for 0°C to 70°C ambient and -25°C to +85°C per the datasheet.

What is the package type of the UC3637Q?

The UC3637Q is available in a 20-LCC (J-Lead) package, also supplied as a 20-PLCC (9x9).

What is the maximum output current?

The device can source or sink up to 500mA on pins 4 and 7.

What is the oscillator accuracy?

The oscillator has an initial accuracy of ±5% and ±10% over temperature.

What is the shutdown threshold?

The shutdown input has a temperature-compensated 2.5V threshold.

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