UC1625-SP

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Space-rated (QMLV) 3-phase sensored trapezoidal control BLDC gate driver

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Product details

Parameters

Rating Space Control method Trapezoidal Control Architecture Gate Driver Control interface 1xPWM Peak output current (A) 0.5 Gate drive (A) 0.2 Vs (Min) (V) 10 Vs ABS (Max) (V) 20 Features Tach/FG Feedback, Hardware Management I/F Operating temperature range (C) -55 to 125 open-in-new Find other Brushless DC (BLDC) motor drivers

Package | Pins | Size

CDIP SB (JDJ) 28 266 mm² 35.56 x 7.49 open-in-new Find other Brushless DC (BLDC) motor drivers

Features

  • QML-V Qualified, SMD 5962-91689
  • Rad-Tolerant: 40 kRad (Si) TID(1)
  • Drives Power MOSFETs or Power Darlingtons Directly
  • 50-V Open Collector High-Side Drivers
  • Latched Soft Start
  • High-speed Current-Sense Amplifier with Ideal Diode
  • Pulse-by-Pulse and Average Current Sensing
  • Over-Voltage and Under-Voltage Protection
  • Direction Latch for Safe Direction Reversal
  • Tachometer
  • Trimmed Reference Sources 30 mA
  • Programmable Cross-Conduction Protection
  • Two-Quadrant and Four-Quadrant Operation

(1) Radiation tolerance is a typical value based upon initial device qualification with dose rate = 10 mrad/sec. Radiation Lot Acceptance Testing is available - contact factory for detials.

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Description

The UC1625 motor controller integrates most of the functions required for high-performance brushless dc motor control into one package. When coupled with external power MOSFETs or Darlingtons, this device performs fixed-frequency PWM motor control in either voltage or current mode while implementing closed loop speed control and braking with smart noise rejection, safe direction reversal, and cross-conduction protection.

Although specified for operation from power supplies between 10 V and 18 V, the UC1625 can control higher voltage power devices with external level-shifting components. The UC1625 contains fast, high-current push-pull drivers for low-side power devices and 50-V open-collector outputs for high-side power devices or level shifting circuitry.

The UC1625 is characterized for operation over the military temperature range of –55°C to 125°C.

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Technical documentation

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Type Title Date
* Datasheet CLASS V, BRUSHLESS DC MOTOR CONTROLLER. datasheet (Rev. A) Sep. 20, 2011
* SMD UC1625-SP SMD 5962-91689 Jul. 08, 2016
* Radiation & reliability report UC1625-SP ELDRS Report Mar. 31, 2015
Selection guide TI Space Products (Rev. H) Jan. 27, 2021
Technical article A basic brushless gate driver design – part 3: integrated vs. discrete half bridges Dec. 16, 2020
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations May 18, 2020
Application note Single-Event Effects Confidence Interval Calculations Jan. 14, 2020
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing Jun. 17, 2019
Technical article Connectivity helps integrate intelligent motor control on a single MCU Jun. 06, 2018
Technical article Cut the power and complexity of your appliance designs Feb. 06, 2018
Technical article Six weird ways to design with a brushless-DC driver Aug. 28, 2017

Design & development

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Design tools & simulation

SIMULATION MODEL Download
SLUM651.ZIP (14 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SLUM652.TSC (4386 KB) - TINA-TI Reference Design

CAD/CAE symbols

Package Pins Download
CDIP SB (JDJ) 28 View options

Ordering & quality

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