Datasheet > UC1625_16

UC1625_16

更新时间： 2024-11-28 02:58:51

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
15页	312K
描述
Brushless DC Motor Controller

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中文翻译

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UC1625_16 数据手册

application

INFO

UC1625

UC2625

UC3625

available

Brushless DC Motor Controller

FEATURES

DESCRIPTION

• Drives Power MOSFETs or Power Darlingtons The UC3625 family of motor controller ICs integrate most of the

Directly

functions required for high-performance brushless DC motor con-

trol into one package. When coupled with external power

MOSFETs or Darlingtons, these ICs perform 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.

• 50V Open Collector High-Side Drivers

• Latched Soft Start

• High-speed Current-Sense Amplifier with Ideal

Diode

Although specified for operation from power supplies between 10V

and 18V, 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 50V

open-collector outputs for high-side power devices or level shifting

circuitry.

• Pulse-by-Pulse and Average Current Sensing

• Over-Voltage and Under-Voltage Protection

• Direction Latch for Safe Direction Reversal

• Tachometer

The UC1625 is characterized for operation over the military tem-

perature range of –55°C to +125°C, while the UC2625 is charac-

terized from –40°C to +105°C and the UC3625 is characterized

from 0°C to 70°C. (NOTE: ESD Protection to 2kV)

• Trimmed Reference Sources 30mA

• Programmable Cross-Conduction Protection

• Two-Quadrant and Four-Quadrant Operation

TYPICAL APPLICATION

+15V

VMOTOR

+5V TO HALL

SENSORS

VREF

3kΩ

100nF

20µF

100nF

100µF

20µF

2N3904

10Ω

10kΩ

3kΩ

33kΩ

OSC

QUAD

DIR

2N3906

IRF9350

3kΩ

MOTOR

TO OTHER

CHANNELS

100nF

UC3625

4kΩ

REQUIRED

FOR BRAKE

AND FAST

REVERSE

TO OTHER

CHANNELS

10Ω

IRF532

2200pF

OSC

10kΩ

BRAKE

100nF

3nF

68kΩ

REQUIRED

FOR

5nF

100nF

240Ω

FROM

HALL

AVERAGE

CURRENT

SENSING

0.02Ω

SENSORS

2nF

5nF

240Ω

2nF

0.02Ω

UDG-99045

SLUS353A - NOVEMBER 1999

12 3 4 5 6 7...15

中文翻译

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