UC3176V [TI]
VOICE COIL MOTOR CONTROLLER, 2.5A, PZFM15;
| 型号： | UC3176V |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | VOICE COIL MOTOR CONTROLLER, 2.5A, PZFM15 局域网 电动机控制 |
| 文件： | 总7页 (文件大小：325K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UC3176
UC3177
Full Bridge Power Amplifier
FEATURES
DESCRIPTION
• Dual Power Operational Amplifiers
The UC3176/7 family of full bridge power amplifiers is rated for a continu-
ous output current of 2A. Intended for use in demanding servo applica-
tions such as disk head positioning, the onboard current sense amplifier
can be used to obtain precision control of load current, or where voltage
mode drive is required, a standard voltage feedback scheme can be used.
Output stage protection includes foldback current limiting and thermal
shutdown, resulting in a very rugged device.
• ±2A Output Current Guaranteed
• Precision Current Sense Amplifier
• Two Supply Monitoring Inputs
• Parking Function and Under-Voltage
Lockout
Auxiliary functions on this device include a dual input under-voltage com-
parator that can be programmed to respond to low voltage conditions on
two independent supplies. In response to an under-voltage condition the
power Op-Amps are inhibited and a high current, 100mA, open collector
drive output is activated. A separate Park/Inhibit command input.
• Safe Operating Area Protection
• 3V to 35V Operation
The devices are operational over a 3V to 35V supply range. Internal un-
der-voltage lockout provides predictable power-up and power-down char-
acteristics.
BLOCK DIAGRAM
SLUS285A - OCTOBER 1994 - REVISED JANUARY 2005
UC3176
UC3177
CONNECTION DIAGRAM
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply voltage, (+VIN) . . . . . . . . . . . . . . . . . . . . . . . . 40V
Park/Inhibit, UV1 and UV2 inputs (zener clamped)
PLCC-28 (Top View)
QP Package
PACKAGE PIN FUNCTION
FUNCTION
PIN
Maximum forced voltage . . . . . . . . . . . . . . . . . –0.3V to 10V
Maximum forced current . . . . . . . . . . . . . . . . . . . . . . ±10mA
Other Input Voltages . . . . . . . . . . . . . . . . . . . . . . –0.3V to +VIN
AlSINK and BlSINK Voltages . . . . . . . . . . . . . . . . . . . –0.3V to 6V
Open Collector Output Voltages . . . . . . . . . . . . . . . . . . . . . 40V
A and B Output Currents (Continuous)
Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Sink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5A
Total Supply Current (Continuous) . . . . . . . . . . . . . . . . . . . . 4A
Parking Drive Output Current (Continuous) . . . . . . . . . . 200mA
Supply OK Output Current, UC3177 (Continuous). . . . . . 30mA
Operating Junction Temperature . . . . . . . . . . –55°C to +150°C
Power Dissipation at TC = +75°C
+VIN
B Output
1
2
3
4
BI
BI
(Sense)
SINK
SINK
N/C
5-7
8
B– Input
*
9
Park/Inhibit
Parking Drive
10
11
Gnd (Heat Flow Pins) 12-18
UV1
19
20
21
22
23
24
25
26
27
28
UV2
QP package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4W
Storage Temperature . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Current Feedback
A+ Input
A– Input
N/C
THERMAL DATA
QP package:
*Pin 9: UC3176, B+ Input
AI
SINK
UC3177, Supply OK
AI
(Sense)
Thermal Resistance Junction to Leads, θJL . . . . . . . 15°C/W
Thermal Resistance Junction to Ambient, θJA . . . . . 50°C/W
Thermal Resistance Junction to COSC, θJC . . . . . . . 30°C/W
SINK
A Output
Gnd
ELECTRICAL CHARACTERISTICS:Unless otherwise stated, specifications hold for TA = 0 to 70°C, +VIN = 12V, TA = TJ.
PARAMETER TEST CONDITIONS MIN. TYP. MAX. UNITS
Input Supply
Supply Current
+VIN = 12V
18
21
25
30
mA
mA
V
+VIN = 35V
UVOL Threshold
+VIN low to high
2.8
220
3.0
300
Threshold Hysteresis
mV
Power, Amplifier, A and B
Input Offset Voltage
Input Bias Current
VCM = 6V, VOUT = 6V
8
mV
nA
VCM = 6V, Except A+ Input
–500 –100
Input Bias Current at A+/Reference Input (A+/REF - BISINK) /36kΩ; TJ = 25°C
23
28
35
µA/V
nA
Input Offset Current B Amp
(UC3176 Only)
V
CM = 6V
200
CMRR
VCM = 1 to 33V, +VIN = 35V, VOUT = 6V
+VIN = 5 to 35V, VCM = 2.5V
70
70
100
100
4
dB
dB
PSRR
Large Signal Voltage Gain
VOUT = 3V, w/IOUT = 1A to VOUT = 9V,
w/IOUT = –1A
1.5
V/mV
Thermal Feedback
Saturation Voltage
+VIN = 20V, Pd = 20W at opposite output
25
1.9
1.6
3.5
1
200
3.7
µV/W
V
I
OUT = –2A, High Side, TJ = 25°
CIOUT = 2A, Low Side, TJ = 25°C
Total VSAT at 2A, TJ = 25°C
V
V
Unity Gain Bandwidth
Slew Rate
MHz
V/µs
1
Differential IOUT Sense Error Current in
Bridge Configuration
IOUT(A) = –IOUT(B), /IOUT / – /AISINK - BISINK /
I
I
OUT ≤ 200mA
OUT ≤ 2A
3.0
5.0
6.0
10
mA
mA
A
High Side Current Limiting
=VIN - VOUT < 12V
–2.7
–2.0
2
UC3176
UC3177
ELECTRICAL CHARACTERISTICS:Unless otherwise stated, specifications hold for TA = 0 to 70°C, +VIN = 12V, TA = TJ.
PARAMETER TEST CONDITIONS MIN. TYP. MAX. UNITS
Current Sense Amplifier
Input Offset Voltage
VCM = 0V, A+ / REF at 6V
3
mV
REF = 2V to 20V, +VIN = 35, change with REF
Input voltage
600
µV/V
Thermal Gradient Sensitivity
+VIN = 20V, REF = 10V Pd = 20W @ A or B
Output
5.0
75.0 µV/W
PSRR
REF = 2.5V, +VIN = 5 to 35V
70
100
8.0
2
dB
Gain
/AISINK-BISINK / ≤ 0.5V
7.8
8.1
V/V
V/µS
MHz
mA
V
Slew Rate
3dB Bandwidth
MAX Output Current
Output Saturation Voltage
1
ISOURCE = +VIN - VOUT = 0.5V
ISOURCE = 1.5mA, High Side
2.5
3.5
0.15
1.4
0.30
1.85
I
SINK = 5mA, Low Side
V
Under-Voltage Comparator
Threshold Voltage
Low to High, other input at 5V
Threshold Hysteresis
Input = 2V, other input at 5V
IOUT = 5mA
1.44
50
1.50
70
1.56
80
V
mV
µA
V
Input Current
–2.00 –.05
Supply OK VSAT (UC3177 Only)
Supply OK Leakage (UC3177 Only)
Park/Inhibit
0.45
5
V
OUT = 35V
µA
Park/Inhibit Thl’d
1.1
1.3
60
1.7
100
0.7
15
V
µA
V
Park/Inhibit Input Current
Parking Drive Saturation Voltage
Parking Drive Leakage
Thermal Shutdown
At threshold
IOUT = 100mA
0.3
V
OUT = 35V
µA
Shutdown Temperature
165
°C
Output saturation voltage vs. current. Maximum source current vs. + VIN
VOUT.
–
Crossover current error
characteristic.
3
UC3176
UC3177
APPLICATION AND OPERATION INFORMATION
WAVEFORMS FOR ABOVE APPLICATION
DESIGN EQUATIONS
IL RF2
=
1
Transconductance (GO) =
×
VS RF1
8R
S
with: RSA = RSB and RF3 = RF4
VIN −1.5
Parking Current (IP) =
RP +RL
where: RL = load resistance
Under-Voltage Thresholds, at Supplies
High to Low Threshold, (VLH) = 1.425 (RA + RB)/RB
Low to High Threshold, (VHL) = 1.5 (RA + RB)/RB
4
PACKAGE OPTION ADDENDUM
www.ti.com
11-Apr-2013
PACKAGING INFORMATION
Orderable Device
UC3176QP
Status Package Type Package Pins Package
Eco Plan Lead/Ball Finish
MSL Peak Temp
Op Temp (°C)
0 to 70
Top-Side Markings
Samples
Drawing
Qty
(1)
(2)
(3)
(4)
ACTIVE
PLCC
PLCC
FN
28
28
37
Green (RoHS
& no Sb/Br)
CU NIPDAU
Call TI
Level-3-260C-168 HR
UC3176QP
UC3176QP
UC3176QPTR
ACTIVE
FN
750
TBD
Call TI
0 to 70
(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), Pb-Free (RoHS Exempt), 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.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
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.
(4)
Multiple Top-Side Markings will be inside parentheses. Only one Top-Side Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a
continuation of the previous line and the two combined represent the entire Top-Side Marking for that device.
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
MECHANICAL DATA
MPLC004A – OCTOBER 1994
FN (S-PQCC-J**)
PLASTIC J-LEADED CHIP CARRIER
20 PIN SHOWN
Seating Plane
0.004 (0,10)
0.180 (4,57) MAX
0.120 (3,05)
D
0.090 (2,29)
D1
0.020 (0,51) MIN
3
1
19
0.032 (0,81)
0.026 (0,66)
4
18
D2/E2
D2/E2
E
E1
8
14
0.021 (0,53)
0.013 (0,33)
0.050 (1,27)
9
13
0.007 (0,18)
M
0.008 (0,20) NOM
D/E
D1/E1
D2/E2
NO. OF
PINS
**
MIN
0.385 (9,78)
MAX
MIN
MAX
MIN
MAX
0.395 (10,03)
0.350 (8,89)
0.356 (9,04)
0.141 (3,58)
0.191 (4,85)
0.291 (7,39)
0.341 (8,66)
0.169 (4,29)
0.219 (5,56)
0.319 (8,10)
0.369 (9,37)
20
28
44
52
68
84
0.485 (12,32) 0.495 (12,57) 0.450 (11,43) 0.456 (11,58)
0.685 (17,40) 0.695 (17,65) 0.650 (16,51) 0.656 (16,66)
0.785 (19,94) 0.795 (20,19) 0.750 (19,05) 0.756 (19,20)
0.985 (25,02) 0.995 (25,27) 0.950 (24,13) 0.958 (24,33) 0.441 (11,20) 0.469 (11,91)
1.185 (30,10) 1.195 (30,35) 1.150 (29,21) 1.158 (29,41) 0.541 (13,74) 0.569 (14,45)
4040005/B 03/95
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Falls within JEDEC MS-018
1
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