(1) Radiation tolerance is a typical value based upon initial device qualification. Radiation Lot Acceptance Testing is available - contact factory for details.
The UC1637 is a pulse width modulator circuit intended to be used for a variety of PWM motor drive and amplifier applications requiring either uni-directional or bi-directional drive circuits. When used to replace conventional drivers, this circuit can increase efficiency and reduce component costs for many applications. All necessary circuitry is included to generate an analog error signal and modulate two bi-directional pulse train outputs in proportion to the error signal magnitude and polarity.
This monolithic device contains a sawtooth oscillator, error amplifier, and two PWM comparators with ±100-mA output stages as standard features. Protection circuitry includes under-voltage lockout, pulse-by-pulse current limiting, and a shutdown port with a 2.5-V temperature compensated threshold.
The UC1637 is characterized for operation over the full space temperature range of –55°C to 125°C.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | Switched Mode Controller for DC Motor Drive. datasheet | 04 Feb 2010 | |
| * | SMD | UC1637-SP SMD 5962-89957 | 08 Jul 2016 | |
| * | Radiation & reliability report | UC1637-SP ELDRS Report | 31 Mar 2015 | |
| More literature | TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. A) | 31 Aug 2023 | ||
| Application note | Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. A) | PDF | HTML | 17 Nov 2022 | |
| Application note | Single-Event Effects Confidence Interval Calculations (Rev. A) | PDF | HTML | 19 Oct 2022 | |
| Selection guide | TI Space Products (Rev. I) | 03 Mar 2022 | ||
| White paper | How smart tune regulates current in stepper motors (Rev. A) | 19 Mar 2019 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | Download |
|---|---|---|
| CFP (W) | 20 | View options |
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