UC3625DWTR

Manufacturer Part NumberUC3625DWTR
DescriptionIC BRUSHLESS MOTOR CTRLR 28SOIC
ManufacturerTexas Instruments
TypeBrushless DC Motor Controller
UC3625DWTR datasheet
 


Specifications of UC3625DWTR

ApplicationsDC Motor Controller, Brushless (BLDC)Number Of Outputs1
Current - Output±200mAVoltage - Supply10 V ~ 18 V
Operating Temperature0°C ~ 70°CMounting TypeSurface Mount
Package / Case28-SOIC (7.5mm Width)Operating Supply Voltage10 V to 18 V
Supply Current30 mAMounting StyleSMD/SMT
Lead Free Status / RoHS StatusLead free / RoHS CompliantVoltage - Load-
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FEATURES
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
10kW
3kW
R
OSC
QUAD
33kW
DIR
1k
4kW
100nF
2200pF
C
BRAKE
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.
Brushless DC Motor Controller
DESCRIPTION
The UC3625 family of motorcontroller devices
integrate
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
protection.
Although specified for operation from power supplies
between 10 V and 18 V, the UC1625 can control
higher
level-shifting components. The UC1625 contains
fast, high-current push-pull drivers for low-side power
devices
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
+5V TO HALL
VREF
SENSORS
100nF
100nF
+
20mF
20mF
10kW
2
22
6
1
28
UC3625
27
25
OSC
15
21
26
3
24
23
8
9
10
5nF
3nF
68kW
C
FROM
R
T
T
100nF
HALL
SENSORS
2nF
51kW
2nF
2nF
VREF
SLUS353B – NOVEMBER 2003 – REVISED APRIL 2007
most
of
the
functions
required
reversal,
and
cross–conduction
voltage
power
devices
with
and
50-V
open-collector
outputs
+15V
VMOTOR
+
3kW
100mF
2N3904
10W
19
11
2N3906
IRF9350
3kW
16
TO
MOTOR
17
TO OTHER
CHANNELS
18
14
REQUIRED
TO OTHER
FOR BRAKE
CHANNELS
AND FAST
13
REVERSE
10W
IRF532
12
20
4
5
7
10kW
100nF
REQUIRED
240W
FOR
AVERAGE
0.02
CURRENT
5nF
240W
W
SENSING
R
S
0.02
W
R
D
Copyright © 2003–2007, Texas Instruments Incorporated
UC1625
UC2625
UC3625
for
external
for

UC3625DWTR Summary of contents

  • Page 1

    ... TO MOTOR 17 TO OTHER CHANNELS 18 14 REQUIRED TO OTHER FOR BRAKE CHANNELS AND FAST 13 REVERSE 10W IRF532 10kW 100nF REQUIRED 240W FOR AVERAGE 0.02 CURRENT 5nF 240W W SENSING Copyright © 2003–2007, Texas Instruments Incorporated UC1625 UC2625 UC3625 for external for ...

  • Page 2

    UC1625 UC2625 UC3625 SLUS353B – NOVEMBER 2003 – REVISED APRIL 2007 ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) VCC Supply voltage Pwr VCC PWM IN E/A IN(+), E/A IN(–) ISENSE1, ISENSE2 OV–COAST, DIR, SPEED-IN, SSTART, QUAD ...

  • Page 3

    ELECTRICAL CHARACTERISTICS ELECTRICAL CHARACTERISTICS:Unless otherwise stated, these specifications apply for nF; R OSC REF OSC PARAMETER Overall Supply current VCC turn-on threshold VCC turn-off threshold Overvoltage/Coast OV-COAST ...

  • Page 4

    UC1625 UC2625 UC3625 SLUS353B – NOVEMBER 2003 – REVISED APRIL 2007 ELECTRICAL CHARACTERISTICS (continued) ELECTRICAL CHARACTERISTICS:Unless otherwise stated, these specifications apply for nF; R OSC REF OSC PARAMETER ...

  • Page 5

    Quad Sel 22 RC-Osc 25 OSC PWM In 26 E/A Out 27 E/A In(+) 1 E/A In (–) 28 SSTART 24 ISENSE 3 ABS VALUE 2.5V ISENSE1 4 2X ISENSE2 5 VCC 19 9V OV-Coast 23 1.75V Dir 6 ...

  • Page 6

    UC1625 UC2625 UC3625 SLUS353B – NOVEMBER 2003 – REVISED APRIL 2007 TERMINAL NAME NO. DIR, SPEED- E/A IN(+), E/A IN(–), E/A 1, 28, 27, OUT, PWM IN 26 GND 15 H1, H2 ISENSE1, ISENSE2, ...

  • Page 7

    TERMINAL NAME NO. PDA, PDB, PDC 12, 13, 14 PUA, PUB, PUC 16, 17, 18 PWR VCC 11 QUAD SEL 22 RC-BRAKE 21 RC-OSC 25 DEVICE INFORMATION (continued) Terminal Functions (continued) I/O These outputs can drive the gates of ...

  • Page 8

    UC1625 UC2625 UC3625 SLUS353B – NOVEMBER 2003 – REVISED APRIL 2007 TERMINAL NAME NO. SSTART 24 TACH-OUT 20 VCC 19 VREF 2 8 DEVICE INFORMATION (continued) Terminal Functions (continued) I/O Any time that VCC drops below threshold or the sensed ...

  • Page 9

    Oscillator Frequency vs C and R OSC OSC 0kHz 10 kHz 1kHz 10 0Hz 0.0 01 0.0 1 Figure 1. Supply Current vs Temperature Figure 3. SLUS353B – NOVEMBER 2003 – REVISED APRIL 2007 TYPICAL CHARACTERISTICS ...

  • Page 10

    UC1625 UC2625 UC3625 SLUS353B – NOVEMBER 2003 – REVISED APRIL 2007 TYPICAL CHARACTERISTICS (continued) Soft-Start Discharge Current vs Temperature Figure 5. 10 Current Sense Amplifier Transfer Function Submit Documentation Feedback www.ti.com SENSE2 SENSE1 Figure 6. ...

  • Page 11

    Cross Conduction Prevention The UC3625 inserts delays to prevent cross conduction due to overlapping drive signals. However, some thought must always be given to cross conduction in output stage design because no amount of dead time can prevent fast ...

  • Page 12

    UC1625 UC2625 UC3625 SLUS353B – NOVEMBER 2003 – REVISED APRIL 2007 APPLICATION INFORMATION (continued) Power Stage Design The UC3625 is useful in a wide variety of applications, including high-power in robotics and machinery. The power output stages used in such ...

  • Page 13

    APPLICATION INFORMATION (continued) FIGURE FIGURE Figure 8. Four Power Stage Designs Table 1. Imposed limitations for 2 QUADRANT 4 QUADRANT Figure A Yes No Figure B Yes Yes Figure C Yes Yes Figure ...

  • Page 14

    UC1625 UC2625 UC3625 SLUS353B – NOVEMBER 2003 – REVISED APRIL 2007 For drives where speed is critical, P-Channel MOSFETs can be driven by emitter followers as shown in Here, both the level shift NPN and the PNP must withstand high ...

  • Page 15

    Fast High-Side N-Channel Driver with Transformer Isolation A small pulse transformer can provide excellent isolation between the UC3625 and a high-voltage N-Channel MOSFET while also coupling gate drive power. In this circuit (shown in transformer driver/encoder that duty-cycle modulates ...

  • Page 16

    UC1625 UC2625 UC3625 SLUS353B – NOVEMBER 2003 – REVISED APRIL 2007 Computational Truth Table Table 2 shows the outputs of the gate drive and open collector outputs for given hall input codes and direction signals. Numbers at the top of ...

  • Page 17

    R OSC QUAD 33kW 22 DIR 4kW 100nF 27 25 2200pF C OSC 15 BRAKE 3nF C T Figure 14. 45-V/8-A Brushless DC Motor Drive Circuit N-Channel power MOSFETs are used for ...

  • Page 18

    ... ACTIVE SOIC UC2625N ACTIVE PDIP UC2625NG4 ACTIVE PDIP UC2625Q ACTIVE PLCC UC3625DW ACTIVE SOIC UC3625DWG4 ACTIVE SOIC UC3625DWTR ACTIVE SOIC UC3625DWTRG4 ACTIVE SOIC UC3625N ACTIVE PDIP UC3625NG4 ACTIVE PDIP UC3625Q ACTIVE PLCC Pins Package Qty (2) Eco Plan Drawing Ball Finish J 28 ...

  • Page 19

    Orderable Device (1) Package Type Package Status UC3625QG4 ACTIVE PLCC UC3625QTR ACTIVE PLCC UC3625QTRG4 ACTIVE PLCC (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device ...

  • Page 20

    Military: UC1625 NOTE: Qualified Version Definitions: • Catalog - TI's standard catalog product Enhanced Product - Supports Defense, Aerospace and Medical Applications • Military - QML certified for Military and Defense Applications • PACKAGE OPTION ADDENDUM Addendum-Page 3 ...

  • Page 21

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing UC2625DWTR SOIC DW UC3625DWTR SOIC DW UC3625QTR PLCC FN PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 28 1000 330.0 32.4 11.35 18.67 28 1000 330.0 32.4 11.35 18.67 ...

  • Page 22

    ... Device Package Type UC2625DWTR SOIC UC3625DWTR SOIC UC3625QTR PLCC PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm 1000 DW 28 1000 FN 28 750 Pack Materials-Page 2 22-Oct-2010 Width (mm) Height (mm) 346.0 346.0 49.0 346.0 346.0 49.0 346.0 346.0 41.0 ...

  • Page 23

    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...