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UC1620JP

更新时间：2025-07-12 13:11:20
品牌：TI
描述：BRUSHLESS DC MOTOR CONTROLLER, 2.5A, CDIP24

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UC1620JP 概述

BRUSHLESS DC MOTOR CONTROLLER, 2.5A, CDIP24 运动控制电子器件

UC1620JP 规格参数

生命周期：Obsolete包装说明：DIP,
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.84
模拟集成电路 - 其他类型：BRUSHLESS DC MOTOR CONTROLLERJESD-30 代码：R-GDIP-T24
功能数量：1端子数量：24
最高工作温度：125 °C最低工作温度：-55 °C
最大输出电流：2.5 A封装主体材料：CERAMIC, GLASS-SEALED
封装代码：DIP封装形状：RECTANGULAR
封装形式：IN-LINE认证状态：Not Qualified
最大供电电压 (Vsup)：40 V最小供电电压 (Vsup)：8 V
标称供电电压 (Vsup)：20 V表面贴装：NO
技术：BIPOLAR温度等级：MILITARY
端子形式：THROUGH-HOLE端子位置：DUAL
Base Number Matches：1

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UC1620  
UC3620  
Switchmode Driver for 3- Brushless DC Motors  
DESCRIPTION  
FEATURES  
•
2A Continuous, 3A Peak Output  
Current  
The UC3620 is a brushless DC motor driver capable of decoding and  
driving all 3 windings of a 3-phase brushless DC motor. In addition, an  
on-board current comparator, oscillator, and high gain Op-Amp provide  
all necessary circuitry for implementing a high performance, chopped  
mode servo amplifier. Full protection, including thermal shutdown,  
pulse-by-pulse current limiting, and under-voltage lockout aid in the  
simple implementation of reliable designs. Both conducted and radiated  
EMI have been greatly reduced by limiting the output dv/dt to 150V/µs  
for any load condition.  
•
•
8V to 40V Operation  
Internal High Gain Amplifier for  
Velocity Control Applications  
•
•
•
•
•
•
TTL Compatible Hall Inputs  
Mask Programmable Decode Logic  
Pulse-by-Pulse Current Limiting  
Internal Thermal Shutdown Protection  
Under-Voltage Lockout  
The UC1620SP is characterized for operation over the full military tem-  
perature range of -55°C to +125°C, while the UC3620SP is charac-  
terized for 0°C to +70°C.  
Available in SP Hermetic Package  
BLOCK DIAGRAM  
3/97  
1
UC1620  
UC3620  
ABSOLUTE MAXIMUM RATINGS (Note 1)  
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V  
Output Current, Source or Sink  
CONNECTION DIAGRAMS  
SP Hermetic Power DIL  
Non-Repetitive (t = 100µsec), lo . . . . . . . . . . . . . . . . . . . . 3A  
Repetitive (80% on - 20% off; tON = 10ms) . . . . . . . . . . 2.5A  
DC Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2A  
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +Vcc  
Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +Vcc  
Total Power Dissipation (at TCASE = 75° C)  
for SP Package (Note 2). . . . . . . . . . . . . . . . . . . . . . . . . . 15W  
Storage Temperature . . . . . . . . . . . . . . . . . . . . -65°C to +150°C  
Operating Junction Temperature . . . . . . . . . . . -55°C to +150°C  
Note 1: All voltages are with respect to ground. Currents are  
positive into, negative out of the specified terminal.  
Note 2: Consult Packaging Section of Databook for thermal  
limitations and considerations of package.  
Unless otherwise stated, these specifications apply for TA = 0°C to 70°C for 3620; TA  
= 55°C to +125°C for UC1620; VCC = 20V, RT = 20V, RT = 10k, CT = -2.2nF. TA=TJ.  
ELECTRICAL CHARACTERISTICS:  
PARAMETER  
TEST CONDITIONS  
UC3620  
TYP  
UC1620  
TYP  
UNIT  
MIN  
MAX  
MIN  
MAX  
Error Amplifier Section  
Input Offset Voltage  
Input Bias Current  
1.5  
-.25  
15  
10  
-2.0  
250  
1.5  
-.25  
15  
10  
-2.0  
250  
mV  
µA  
Input Offset Current  
nA  
Common Mode Range  
Open Loop Gain  
Vcc = 8V to 40V  
∆VCOMP = 1V to 4V  
0
VIN-2  
0
VIN-2  
V
80  
100  
0.8  
2
75  
100  
0.8  
2
dB  
Unity Gain Bandwidth  
Output Sink Current  
Output Source Current  
Current Sense Section  
Input Bias Current  
TJ = 25°C, Note 2  
VCOMP = 1V  
MHz  
mA  
mA  
VCOMP = 4V  
8
8
-2.0  
0.5  
0.2  
1.0  
-5  
-2.0  
0.5  
0.2  
1.0  
-5  
µA  
V
Internal Clamp  
.425  
.180  
.8  
.575  
.220  
1.2  
.405  
.170  
.75  
.595  
.230  
1.25  
Divider Gain  
V/V  
V
Internal Offset Voltage  
Timing Section  
Output Off Time  
18  
20  
5.0  
2.0  
22  
17  
20  
5.0  
2.0  
23  
µs  
V
Upper Mono Threshold  
Lower Mono Threshold  
Decoder Section  
V
High-Level Input Voltage  
Low-Level Input Voltage  
High-Level Input Current  
Low-Level Input Current  
Output Section  
2.2  
-10  
2.5  
-10  
V
V
0.8  
10  
0.8  
10  
µA  
µA  
Output Leakage Current  
VF1 Schottky Diode  
VF1 Substrate Diode  
Total Output Voltage Drop  
VCC = 40V  
IO = 2A  
500  
2.0  
3.0  
3.6  
1500  
2.0  
µA  
V
1.5  
2.2  
3.0  
1.5  
2.2  
3.0  
IO = 2A  
3.0  
V
IO = 2A, Note 3  
3.6  
V
2
UC1620  
UC3620  
Unless otherwise stated, these specifications apply for TA = 0°C to 70°C for 3620; TA  
= 55°C to +125°C for UC1620; VCC = 20V, RT = 20V, RT = 10k, CT = -2.2nF. TA=TJ.  
ELECTRICAL CHARACTERISTICS:  
PARAMETER  
TEST CONDITIONS  
UC3620  
TYP  
UC1620  
TYP  
UNIT  
MIN  
MAX  
MIN  
MAX  
Output Section (cont.)  
Output Rise Time  
Output Fall Time  
RL = 44Ω  
150  
150  
150  
150  
ns  
ns  
RL = 44Ω  
Under Voltage Lockout  
Startup Threshold  
8.0  
8.0  
V
V
Threshold Hysteresis  
Thermal Shutdown  
Junction Temperature  
Total Standby Current  
Supply Current  
0.5  
0.5  
Note 2  
150  
180  
55  
150  
180  
55  
°C  
32  
32  
mA  
Note 2: These parameters, although guaranteed over the recommended operating conditions, are not 100% tested in production.  
Note 3: The total voltage drop is defined as the sum of both top and bottom side driver.  
Hall lines require pull-up resistors.  
TABLE 1  
STEP FWD/ Ha Hb Hc  
REV  
AOUT  
BOUT  
COUT  
CURRENT SENSING  
Referring to Figure 1, emitter current is sensed across RS  
and fed back through a low pass filter to the current  
sense pin 7. This filter is required to eliminate false trig-  
gering of the monostable due to leading edge current  
spikes. Actual filter values, although somewhat depend-  
ent on external loads, will generally be in the 1kΩ and  
1000pF range.  
1
2
3
4
5
6
1
2
3
4
5
6
1
1
1
1
1
1
0
0
0
0
0
0
1
1
1
0
0
0
1
1
1
0
0
0
0
0
1
1
1
0
0
0
1
1
1
0
1
0
0
0
1
1
1
0
0
0
1
1
H
H
O
L
L
O
H
H
O
L
O
L
L
O
H
H
O
H
H
O
L
L
O
L
H
O
L
L
TIMING  
O
H
H
O
An R-C time constant on pin 9 is used by the monostable  
to generate a fixed off time at the outputs according to the  
formula:  
L
O
H
L
TOFF = .916RTCT  
H = HIGH OUTPUT  
L = LOW OUTPUT  
O = OPEN OUTPUT  
As the peak current in the emitters approaches the value  
at the minus (-) input of the on-board comparator, the  
monostable is triggered, causing the outputs to be turned  
CIRCUIT DESCRIPTION  
The UC3620 is designed for implementation of a com-  
plete 3- brushless DC servo drive using a minimum  
number of external components. Below is a functional de-  
scription of each major circuit feature.  
DECODER  
Table 1 shows the decoding scheme used in the UC3620  
to decode and drive each of three high current totem pole  
output stages. A forward/reverse signal, pin 13, is used to  
provide direction. At any point in time, one driver is sour-  
cing, one driver is sinking, and the remaining driver is off  
or tri-stated. Pulse width modulation is accomplished by  
turning the sink driver off during the monostable reset  
time, producing a fixed off-time chop mode. Controlled  
output rise and fall times help reduce electrical switching  
noise while maintaining relatively small switching losses.  
Figure 1. Current Sense Filter  
3
UC1620  
UC3620  
CIRCUIT DESCRIPTION (cont.)  
off. On time is determined by the amount of time required  
for motor current to increase to the value required to re-  
tive (-) input will limit peak current to a maximum value. A  
fixed 0.5V internal clamp has been included on the  
trip the monostable. A timing sequence of these events is UC3620, and any current spike in the output which gen-  
shown in Figure 2.  
erates a sensed voltage greater than 0.5V will immedi-  
ately shut down the outputs. Actual peak current values  
may be programmed by selecting the appropriate value of  
RS according to the formula:  
0.5  
RS =  
ICURRENTLIMIT  
ERROR AMPLIFIER LIMIT  
A high performance, on-board error amplifier is included  
to facilitate implementing closed loop motor control. Error  
voltage generation and loop compensation are easily ac-  
complished by appropriately configuring the gain and  
feedback of this amplifier. To provide a larger dynamic sig-  
nal range at the output of the error amplifier, a divide by 5  
resistor network is used to reduce the error signal level  
before applying to the internal comparator. In addition, a  
one volt offset has been introduced at the output of the  
error amplifier to guarantee control down to zero current  
in the output stages. Since this offset is divided by the  
open loop gain of the feedback loop, it has virtually no ef-  
fect on closed loop performance.  
Figure 2. Chopped Mode Timing Diagram  
CURRENT LIMIT  
Since peak current is being controlled at all times by the  
internal comparator, a simple voltage clamp at its nega-  
tive (-) input will limit peak current to a maximum value. A  
fixed 0.5V internal clamp has been included on the  
UC3620, and any current spike in the output which gener-  
ates a sensed voltage greater than 0.5V will immediately  
shut down the outputs. Actual peak current values may be  
programmed by selecting the appropriate value of RS ac-  
cording to the formula:  
PROTECTION FUNCTIONS  
Protective functions including under-voltage lockout, peak  
current limiting, and thermal shutdown, provide an ex-  
tremely rugged device capable of surviving under many  
types of fault conditions. Under-voltage lockout guaran-  
tees the outputs will be off or tri-slated until V is suffi-  
CC  
0.5  
RS =  
cient for proper operation of the chip. Current limiting  
limits the peak current for a stalled or shorted motor,  
whereas thermal shutdown will tri-state the outputs if a  
temperature above 150°C is reached.  
ICURRENTLIMIT  
Since peak current is being controlled at all times by the  
internal comparator, a simple voltage clamp at its nega-  
4
UC1620  
UC3620  
TYPICAL APPLICATIONS  
*Both VCC PWR and VCC LOGIC pins must be connected together when using the SP package.  
3- Brushless DC Open Loop Motor Drive  
*Both VCC PWR and VCC LOGIC pins must be connected together when using the SP package.  
3- Brushless DC Open Loop Motor with Current Limit at 2A.  
5
UC1620  
UC3620  
*Both VCC PWR and VCC LOGIC pins must be connected together when using the SP package.  
Closed Loop Speed Control Servo  
UNITRODE CORPORATION  
7 CONTINENTAL BLVD. • MERRIMACK, NH 03054  
TEL. (603) 424-2410 • FAX (603) 424-3460  
6
PACKAGE OPTION ADDENDUM  
www.ti.com  
30-Mar-2005  
PACKAGING INFORMATION  
Orderable Device  
Status (1)  
Package Package  
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)  
Qty  
Type  
Drawing  
UC1620SP  
UC1620SP883B  
UC1620SP883C  
UC3620SP  
OBSOLETE  
OBSOLETE  
OBSOLETE  
OBSOLETE  
OBSOLETE  
OBSOLETE  
UTR  
24  
24  
TBD  
TBD  
TBD  
TBD  
TBD  
TBD  
Call TI  
Call TI  
Call TI  
Call TI  
Call TI  
Call TI  
Call TI  
Call TI  
Call TI  
Call TI  
Call TI  
Call TI  
UTR  
UTR  
UTR  
24  
15  
15  
UC3620V  
UTR  
UC3620VH  
UTR  
(1) The marketing status values are defined as follows:  
ACTIVE: Product device recommended for new designs.  
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.  
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in  
a new design.  
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.  
OBSOLETE: TI has discontinued the production of the device.  
(2)  
Eco Plan  
-
The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS  
&
no Sb/Br)  
-
please check  
http://www.ti.com/productcontent for the latest availability information and additional product content details.  
TBD: The Pb-Free/Green conversion plan has not been defined.  
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements  
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered  
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.  
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame  
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)  
(3)  
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder  
temperature.  
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is  
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the  
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take  
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on  
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited  
information may not be available for release.  
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI  
to Customer on an annual basis.  
Addendum-Page 1  
IMPORTANT NOTICE  
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’s terms  
and conditions of sale supplied at the time of order acknowledgment.  
TI warrants performance of its hardware products to the specifications applicable at the time of sale in  
accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI  
deems necessary to support this warranty. Except where mandated by government requirements, testing of all  
parameters of each product is not necessarily performed.  
TI assumes no liability for applications assistance or customer product design. Customers are responsible for  
their products and applications using TI components. To minimize the risks associated with customer products  
and applications, customers should provide adequate design and operating safeguards.  
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,  
copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process  
in which TI products or services are used. Information published by TI regarding third-party products or services  
does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.  
Use of such information may require a license from a third party under the patents or other intellectual property  
of the third party, or a license from TI under the patents or other intellectual property of TI.  
Reproduction of information in TI data books or data sheets is permissible only if reproduction is without  
alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction  
of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for  
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Resale of TI products or services with statements different from or beyond the parameters stated by TI for that  
product or service voids all express and any implied warranties for the associated TI product or service and  
is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.  
Following are URLs where you can obtain information on other Texas Instruments products and application  
solutions:  
Products  
Applications  
Audio  
Amplifiers  
amplifier.ti.com  
www.ti.com/audio  
Data Converters  
dataconverter.ti.com  
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www.ti.com/automotive  
DSP  
dsp.ti.com  
Broadband  
Digital Control  
Military  
www.ti.com/broadband  
www.ti.com/digitalcontrol  
www.ti.com/military  
Interface  
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interface.ti.com  
logic.ti.com  
Power Mgmt  
Microcontrollers  
power.ti.com  
Optical Networking  
Security  
www.ti.com/opticalnetwork  
www.ti.com/security  
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www.ti.com/video  
microcontroller.ti.com  
Telephony  
Video & Imaging  
Wireless  
www.ti.com/wireless  
Mailing Address:  
Texas Instruments  
Post Office Box 655303 Dallas, Texas 75265  
Copyright 2005, Texas Instruments Incorporated  

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