UC2625 Datasheet PDF


Part Number

UC2625

Description

Brushless DC Motor Controller

Manufacture

etcTI

Total Page 24 Pages
PDF Download
Download UC2625 Datasheet PDF


Features Datasheet pdf www.ti.com UC1625 UC2625 UC3625 SLUS353 C – NOVEMBER 2003 – REVISED JUNE 20 13 Brushless DC Motor Controller Check for Samples: UC1625, UC2625, UC3625 F EATURES 1 • Drives Power MOSFETs or P ower Darlingtons Directly • 50-V Open Collector High-Side Drivers • Latche d Soft Start • High-Speed Current-Sen se Amplifier with Ideal Diode • Pulse -by-Pulse and Average Current Sensing Over-Voltage and Under-Voltage Prote ction • Direction Latch for Safe Dire ction Reversal • Tachometer • Trimm ed Reference Sources 30 mA • Programm able Cross-Conduction Protection • Tw o-Quadrant and Four-Quadrant Operation DESCRIPTION The UC3625 family of motor controller devices integrate most of the functions required fo.
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UC2625 Datasheet
www.ti.com
UC1625
UC2625
UC3625
SLUS353C – NOVEMBER 2003 – REVISED JUNE 2013
Brushless DC Motor Controller
Check for Samples: UC1625, UC2625, UC3625
FEATURES
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
DESCRIPTION
The UC3625 family of motorcontroller devices
integrate most of the functions required for high-
performance brushless dc-motor control into one
package. When coupled with external power
MOSFETs or Darlingtons, these devices 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.
Although specified for operation from power supplies
between 10 V and 18 V, the UC1625 controls 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, while
the UC2625 is characterized from –40°C to +105°C
and the UC3625 is characterized from 0°C to +70°C.
(Note: ESD Protection to 2 kV)
TYPICAL APPLICATION
VREF
+5V TO HALL
SENSORS
+15V
VMOTOR
QUAD
DIR
100nF
20mF
10kW
ROSC 3kW 10kW
33kW
2
22
100nF
6
1k
1
28
4kW
100nF 27
UC3625
2200pF
COSC
25
15
BRAKE
21 26 3 24 23 8 9 10
+
20mF
3kW
2N3904
10W
19 11
16
2N3906
IRF9350
3kW
17
TO OTHER
CHANNELS
18
14
TO OTHER
CHANNELS
13
10W IRF532
12
20
457
10kW
+
100mF
TO
MOTOR
REQUIRED
FOR BRAKE
AND FAST
REVERSE
3nF 68kW 5nF
CT RT
100nF
2nF
51kW
2nF
2nF
VREF
FROM
HALL
SENSORS
5nF
100nF
240W
240W
0.02
W
RS
REQUIRED
FOR
AVERAGE
CURRENT
SENSING
0.02
W
RD
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2003–2013, Texas Instruments Incorporated




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