UC1634_08 [TI]
Phase Locked Frequency Controller;
| 型号： | UC1634_08 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | Phase Locked Frequency Controller |
| 文件： | 总5页 (文件大小：272K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UC1634
UC2634
UC3634
Phase Locked Frequency Controller
FEATURES
DESCRIPTION
•
Precision Phase Locked Frequency Control
System
The UC1634 series of devices is optimized to provide precision
phase locked frequency control for two phase DC brushless mo-
tors. These devices include most of the features of the general
purpose UC1633 Phase Locked Control family and also provide
the out-of-phase commutation signals required for driving two
phase brushless motors. Only an external power booster stage
is required for a complete drive and control system.
•
•
•
•
•
Communication Logic for 2-Phase Motors
Disable Input for Motor Inhibit
Crystal Oscillator
Programmable Reference Frequency Dividers
The two commutation outputs are open collector devices that can
sink in excess of 16mA. A disable input allows the user to simul-
taneously force both of these outputs to an active low state.
Double edge logic, following the sense amplifier, doubles the ref-
erence frequency at the phase detector by responding to both
edges of the input signal at Pin 7.
Phase Detector with Absolute Frequency
Steering
•
•
•
Digital Lock Indicator
Two High Current Op-Amps
5V Reference Output
BLOCK DIAGRAM
6/93
UC1634
UC2634
UC3634
ABSOLUTE MAXIMUM RATINGS (Note 1, 2)
Input Supply Voltage (+VIN). . . . . . . . . . . . . . . . . . . . . . . . +20V
Reference Output Current . . . . . . . . . . . . . . . . . . . . . . . -30mA
Note 1: Voltages are referenced to ground, (Pin 16, DIL Pack-
age). Currents are positive into, negative out of, the specified
terminals.
Note 2: Consult Packaging Section of Databook for thermal
limitations and considerations of package.
±
Op-Amp Output Currents . . . . . . . . . . . . . . . . . . . . . . . . 30mA
Op-Amp Input Voltages . . . . . . . . . . . . . . . . . . . . . -.3V to +20V
±
Phase Detector Output Current . . . . . . . . . . . . . . . . . . . 10mA
Lock Indicator Output Current . . . . . . . . . . . . . . . . . . . . +15mA
Lock Indicator Output Voltage . . . . . . . . . . . . . . . . . . . . . . +20V
Divide Select Input Voltage . . . . . . . . . . . . . . . . . . -.3V to +10V
Disable Input Voltage . . . . . . . . . . . . . . . . . . . . . . . -.3V to +10V
Oscillator Input Voltage . . . . . . . . . . . . . . . . . . . . . . -.3V to +5V
Sense Amplifier Input Voltage . . . . . . . . . . . . . . . . -.3V to +20V
Driver Output Currents . . . . . . . . . . . . . . . . . . . . . . . . . . +30mA
Driver Output Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . +20V
Power Dissipation at TA = 25°C(Note 2) . . . . . . . . . . . 1000mW
Power Dissipation at TC = 25°C (Note 2). . . . . . . . . . . 2000mW
Operating Junction Temperature . . . . . . . . . . . -55°C to +150°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . -65°C to +150°C
Lead Temperature (Soldering, 10 Seconds) . . . . . . . . . . 300°C
CONNECTION DIAGRAMS
PLCC-20 (TOP VIEW)
Q Package
PACKAGE PIN FUNCTION
FUNCTION
PIN
1
N/C
DIV 2/4/8
2
Lock Indicator Output
Phase Detector
Output
3
4
Disable Input
N/C
5
6
DIL-16, SOIC-16 (TOP VIEW)
J or N Package, DW Package
Driver A Output
Driver B Output
Sense Amp Output
5V Ref Output
Loop Amp Inv Input
Loop Amp Output
Buffer Amp Input
Buffer Amp Output
+VIN
7
8
9
10
11
12
13
14
15
16
17
18
19
20
N/C
OSC Output
OSC Input
Ground
DIV 4/5 Input
Unless otherwise stated, these specifications apply for TA = 0°C to +70°C for the
UC3634, -25°C to + 85°C for the UC2634 and -55°C to +125°C for the UC1634,
+VIN = 12V. TA=TJ.
ELECTRICAL CHARACTERISTICS:
PARAMETERS
Supply Current
TEST CONDITIONS
MIN
4.75
12
TYP
MAX UNITS
+VIN = 15V
20
29
mA
Reference
Output Voltage (VREF
5.0
5.0
2.0
30
5.25
20
V
)
Load Regulation
Line Regulation
IOUT = 0mA to 7mA
+VIN = 8V to 15V
VOUT = 0V
mV
mV
mA
20
Short Circuit Current
Oscillator
DC Voltage Gain
Oscillator In to Oscillator Out
12
1.15
1.3
1.2
10
16
1.3
1.6
1.4
20
1.45
1.9
dB
V
Input DC Level (VIB)
Input Impedance (Note 3)
Output DC Level
Oscillator In Pin Open, TJ = 25°C
±
VIN = VIB 0.5V, TJ = 25°C
kΩ
V
Oscillator In Pin Open, TJ = 25°C
1.6
Maximum Operating Frequency
Dividers
MHz
Maximum Input Frequency
Div. 4/5 Input Current
(Q Package Only, Note 4)
Input = 1VPP at Oscillator In
Input = 5V (Div. by 4)
Input = 0V (Div. by 5)
10
MHz
µA
150
0.0
500
5.0
-5.0
µA
2
UC1634
UC2634
UC3634
Unless otherwise stated, these specifications apply for TA = 0°C to +70°C for the
UC3634, -25°C to + 85°C for the UC2634 and -55°C to +125°C for the UC1634,
+VIN = 12V. TA=TJ
ELECTRICAL CHARACTERISTICS:
PARAMETERS
Dividers (cont.)
TEST CONDITIONS
MIN
TYP
MAX UNITS
Div. 4/5 Input Threshold
(Q Package Only, Note 4)
0.5
1.6
2.2
V
Div. 2/4/8 Input Current
Input = 5V (Div. by 8)
150
-150
2.5
500
µA
µA
V
Input = 0V (Div. by 2)
-500
1.5
Div. 2/4/8 Open Current Voltage
Div. by 2 Threshold
Div. by 4 Threshold
Div. by 8 Threshold
Sense Amplifier
Input Current = 0µA (Div. by 4)
3.5
3.5
0.20
1.5
0.8
V
V
Volts Below VREF
Percent of VREF
Input = 1.5V
0.20
0.8
V
Threshold Voltage
27
30
10
33
%
mV
µA
Threshold Hysteresis
Input Bias Current
-1.0
-0.2
Two Phase Drive Outputs, A and B
Saturation Voltage
IOUT = 16mA
VOUT = 15V
0.3
0.1
0.6
5.0
V
Leakage Current
µA
Disable Input
Input Current
Input = 5V (Disabled, A and B Outputs Active Low)
Input = 0V (Enabled)
150
0.0
1.6
500
5.0
2.2
µA
µA
V
-5.0
0.5
Threshold Voltage
Phase Detector
High Output Level
Positive Phase / Freq. Error, Volts Below VREF
Negative Phase / Freq. Error
Zero Phase / Freq. Error, Percent of VREF
VOUT = 4.3V
0.2
0.2
50
0.5
0.5
53
V
V
Low Output Level
Mid Output Level
47
2.0
2.0
4.5
%
High Level Maximum Source Current
Low Level Maximum Sink Current
Mid Level Output Impedance (Note 3)
Lock Indicator Output
Saturation Voltage
8.0
5.0
6.0
mA
mA
kΩ
VOUT = 0.7V
IOUT = -200 to +200µA, TJ = 25°C
7.5
Freq. Error, IOUT = 5mA
0.3
0.1
0.45
1.0
V
Leakage Current
Zero Freq. Error, VOUT = 15V
µA
Loop Amplifier
N INV. Reference Voltage
Input Bias Current
Percent of VREF
Input = 2.5V
47
-0.8
60
50
-0.2
75
53
%
µA
dB
dB
mA
mA
AVOL
PSRR
+VIN = 8V to 15V
Source, VOUT = 0V
Sink, VOUT = 5V
70
100
35
Short Circuit Current
16
16
30
Buffer Op-Amp
Input Offset Voltage
Input Bias Current
PSRR
VCM = 2.5V
8
mV
µA
VCM = 2.5V
-0.8
70
-0.2
100
100
35
+VIN = 8 to 15V
VCM = 0 to 10V
Source, VOUT = 0V
Sink, VOUT = 5V
dB
CMRR
70
dB
Short Circuit Current
16
mA
mA
16
30
Note 3: These impedance levels will vary with TJ at about 1700ppm/°C.
Note 4: This part is also available in a 20 pin plastic leadless chip carrier, Q designator, where a divide by 4/5 select pin is available.
Consult factory for details.
3
UC1634
UC2634
UC3634
APPLICATION AND OPERATION INFORMATION (For additional information see UC1633 data sheet)
Design Example:
Precision phased locked frequency control of a 2-phase motor at 3600 RPM. Using the commutation logic on the
UC3634, a simple discrete drive scheme is possible.
UNITRODE INTEGRATED CIRCUITS
7 CONTINENTAL BLVD. • MERRIMACK, NH 03054
TEL. (603) 424-2410 • FAX (603) 424-3460
4
IMPORTANT NOTICE
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those
pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO
BE FULLY AT THE CUSTOMER’S RISK.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
semiconductor products or services might be or are used. TI’s publication of information regarding any third
party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright 1999, Texas Instruments Incorporated
相关型号：
©2020 ICPDF网 联系我们和版权申明