UC2543M [TI]
Power Supply Supervisory Circuit;型号: | UC2543M |
厂家: | TEXAS INSTRUMENTS |
描述: | Power Supply Supervisory Circuit |
文件: | 总20页 (文件大小:1178K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
UC1543, UC1544
UC2543, UC2544
UC3543, UC3544
www.ti.com
SLUS188A–APRIL 1997–REVISED FEBRUARY 2007
Power Supply Supervisory Circuit
Both over- and under-voltage sensing circuits can be
externally programmed for minimum time duration of
fault before triggering. All functions contain open
collector outputs which can be used independently or
wire-or’ed together, and although the SCR trigger is
directly connected only to the over-voltage sensing
circuit, it may be optionally activated by any of the
other outputs, or from an external signal. The O.V.
circuit also includes an optional latch and external
reset capability.
FEATURES
•
Includes Over-Voltage, Under-Voltage, and
Current Sensing Circuits
•
•
•
•
•
•
Internal 1% Accurate Reference
Programmable Time Delays
SCR “Crowbar” Drive of 300 mA
Remote Activation Capability
Optional Over-Voltage Latch
Uncommitted Comparator Inputs for Low
Voltage Sensing (UC1544 Series Only)
The UC1544/2544/3544 devices have the added
versatility of completely uncommitted inputs to the
voltage sensing comparators so that levels less than
2.5 V may be monitored by dividing down the internal
reference voltage. The current sense circuit may be
used with external compensation as a linear amplifier
or as a highgain comparator. Although nominally set
for zero input offset, a fixed threshold may be added
with an external resistor. Instead of current limiting,
this circuit may also be used as an additional voltage
monitor.
DESCRIPTION
The monolithic integrated circuits contain all the
functions necessary to monitor and control the output
of
a
sophisticated power supply system.
Over-voltage (O.V.) sensing with provision to trigger
an external SCR “crowbar” shutdown; an
undervoltage (U.V.) circuit which can be used to
monitor either the output or to sample the input line
voltage; and a third op amp/comparator usable for
current sensing (C.L.) are all included in this device,
together with an independent, accurate reference
generator.
The reference generator circuit is internally trimmed
to eliminate the need for external potentiometers and
the entire circuit may be powered directly from either
the output being monitored or from a separate bias
voltage.
BLOCK DIAGRAM
NOTE:
For each terminal, first number refers to 1543 series, second to 1544 series.
*On 1543 series, this function is internally connected to VREF.
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.
Copyright © 1997–2007, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
UC1543, UC1544
UC2543, UC2544
UC3543, UC3544
www.ti.com
SLUS188A–APRIL 1997–REVISED FEBRUARY 2007
Connection Diagrams
DIL-18, SOIC-18 (TOP VIEW)
J or N, DW Package
DIL-16, SOIC-16 (TOP VIEW)
J or N, DW Package
(Also W Package for the UC1543 Only)
UC 1543
UC 2543
UC 3543
UC 1544
UC 2544
UC 3544
SCR Trigger
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
VIN
SCR Trigger
VIN
1
2
16
15
Remote Activate
Reset
VREF
Ground
Remote Activate
Reset
VREF
Ground
3
4
5
6
14
13
12
11
C.L. Output
Offset/Comp
C.L. N.I. Input
C.L. INV. Input
U.V. Indicate
U.V. Delay
O.V. Indicate
O.V. Delay
C.L. Output
O.V. Indicate
O.V. Delay
O.V. Input
U.V. Input
Offset/Comp
C.L. N.I. Input
C.L. INV. Input
U.V. Indicate
O.V. N.I. Input
O.V. Inv. Input
U.V. N.I. Input
U.V. Inv. Input
7
8
10
9
U.V. Delay
PACKAGE PIN FUNCTION
PACKAGE PIN FUNCTION
PLCC-20, LCC-20
(TOP VIEW)
Q or L Package
PLCC-20, LCC-20
(TOP VIEW)
Q or L Package
FUNCTION
N/C
PIN
FUNCTION
N/C
PIN
1
2
1
2
SCR Trigger
Remote Activate
Reset
SCR Trigger
Remote Activate
Reset
3
3
4
4
O.V. Indicate
N/C
5
O.V. Indicate
N/C
5
3
2
1
20 19
3
2
1
20 19
6
6
4
5
6
7
8
4
5
6
7
8
18
17
16
15
14
18
O.V. Delay
O.V. Input
N/C
7
O.V. Delay
O.V. N.I. Input
O.V. INV. Input
U.V. N.I. Input
7
17
16
15
14
8
8
9
9
N/C
10
11
12
13
14
15
16
17
18
19
20
10
11
12
13
14
15
16
17
18
19
20
U.V. Input
U.V. Delay
U.V. Indicate
C.L. INV. Input
C.L. N.I. Input
Offset/Comp
C.L. Output
Ground
U.V. INV. Input
U.V. Delay
U.V. Indicate
C.L. INV. Input
C.L. N.I. Input
Offset/Comp
C.L. Output
Ground
9
10 11 12 13
9
10 11 12 13
VREF
VREF
VIN
VIN
ABSOLUTE MAXIMUM RATINGS(1)
over operating free-air temperature range (unless otherwise noted)
VALUE
40
UNIT
VIN
Input supply voltage
V
Sense inputs, voltage range
0 to VIN
-600
(2)
SCR trigger current
mA
V
Indicator output voltage
40
Indicator output sink current
Power dissipation (package limitation)
50
mA
mW
1000
UC1543, UC1544
UC2543, UC2544
UC3543, UC3544
-55 to 125
-25 to 85
0 to 70
-65 to 150
TJ
Operating temperature range
°C
Tstg
Storage temperature range
(1) Currents are positive-into, negative-out of the specified terminal.
(2) At higher input voltages, a dissipation limiting resistor, RG, is required.
2
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UC1543, UC1544
UC2543, UC2544
UC3543, UC3544
www.ti.com
SLUS188A–APRIL 1997–REVISED FEBRUARY 2007
ELECTRICAL CHARACTERISTICS
Unless otherwise stated, these specifications apply for TA = -55°C to 125°C for theUC1543 and UC1544; -25°C to 85°C for
the UC2543 and UC2544; and 0°C to 70°C for the UC3543 and UC3544. Electrical tests are performed with VIN = 10 V and
2-kΩ pull-up resistors on all indicator outputs. All electrical specifications for the UC1544, UC2544, and UC3544 devices are
tested with the inverting over-voltage input and the non-inverting under-voltage input externallyconnected to the 2.5 V
reference. TA = TJ.
UC1543/UC1544/UC2543/
UC3543/UC3544
UC2544
TYP
PARAMETER
Input voltage range
Supply current
TEST CONDITIONS
UNIT
V
MIN
4.5
MAX
40
MIN
4.5
TYP
MAX
40
TJ = 25°C to TMAX
TMIN to TMAX
VIN
4.7
40
10
15
4.7
40
10
15
VIN = 40 V, output open,
TJ = 25°C
7
7
ICC
mA
T
MIN≤ TJ≤ TMAX
Reference Section
VOUT Output voltage
TJ = 25°C
2.48
2.45
2.5
2.52
2.55
5
2.45
2.40
2.50
2.55
2.60
5
V
Over temperature range
VIN = 5 to 30 V
IREF = 0 to 10 mA
VREF = 0
Line regulation
1
1
1
1
mV
Load regulation
10
10
Short circuit current
Temperature stability
-10
-20
50
-40
-12
-20
50
-40
mA
ppm/°C
SCR Trigger Section
Peak output current
VIN = 5V, RG = 0, VO = 0
VIN = 15 V, IO = -100 mA
VIN = 40 V
-100
12
-300
13
-600
-100
12
-300
13
-600
mA
V
Peak output voltage
Output OFF voltage
Remote activate current
Remote activate voltage
Reset current
0
0.1
-0.8
6
0
0.1
-0.8
6
R/A Pin = GND
-0.4
2
-0.4
2
mA
V
R/A Pin Open
Reset = GND, R/A = GND
Reset open, R/A = GND
RL = 50, TJ = 25°C, CD = 0
RL = 50, TJ = 25°C, CD = 0
-0.4
2
-0.8
6
-0.4
2
-0.8
6
mA
V
Reset voltage
Output current rise time
Prop. delay from R/A
400
300
500
400
300
500
mA/µs
ns
V
Prop. delay from O/V input RL = 50, TJ = 25°C, CD = 0
Comparator Section
Input threshold (Input
TJ = 25°C
2.45
2.40
2.50
2.55
2.60
2.40
2.35
2.50
2.60
2.65
voltage rising on O.V. and
falling on U.V.)
Over temperature range
Input hysteresis
25
-0.3
0.2
25
-0.3
0.2
mV
Input bias current
Delay saturation
Delay high level
Sense input = 0 V
-1.0
0.5
7
-1.0
0.5
7
µA
V
6
6
Delay charging current
Indicate saturation
Indicate leakage
VO = 0
-200
-250
0.2
-300
0.5
1.0
-200
-250
0.2
-300
0.5
1.0
µA
V
IL = 10 mA
VIND = 40 V
0.01
0.01
µA
Input over drive = 200 mV,
TJ = 25°C, CD = 0
400
10
400
10
ns
Propagation delay
Input over drive = 200 mV,
TJ = 25°C, CD = 1 µF
ms
3
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UC1543, UC1544
UC2543, UC2544
UC3543, UC3544
www.ti.com
SLUS188A–APRIL 1997–REVISED FEBRUARY 2007
ELECTRICAL CHARACTERISTICS (continued)
Unless otherwise stated, these specifications apply for TA = -55°C to 125°C for theUC1543 and UC1544; -25°C to 85°C for
the UC2543 and UC2544; and 0°C to 70°C for the UC3543 and UC3544. Electrical tests are performed with VIN = 10 V and
2-kΩ pull-up resistors on all indicator outputs. All electrical specifications for the UC1544, UC2544, and UC3544 devices are
tested with the inverting over-voltage input and the non-inverting under-voltage input externallyconnected to the 2.5 V
reference. TA = TJ.
Current Limit Section
Input voltage range
Input Bias Current
0
VIN -3V
-1.0
0
VIN -3V
-1.0
V
Offset pin open, VCM = 0
Offset pin open, VCM = 0
10k from offset pin to GND
0 ≤ VCM≤ 12 V, VIN = 15 V
-0.3
0
-0.3
0
µA
10
10
Input offset voltage
CMRR
mV
dB
80
60
100
70
120
80
60
100
70
120
Offset pin open, VCM = 0
V,
RL = 10 kΩ to 15 kΩ,
VOUT = 1 to 6 V
AVOL
72
80
72
80
Output saturation
Output leakage
IL = 10 mA
0.2
0.01
5
0.5
1.0
0.2
0.01
5
0.5
1.0
V
VIND = 40 V
µA
Small signal bandwidth
AV = 0dB, TJ = 25°C
MHz
VOVERDRIVE = 100 mV,
TJ = 25°C
Propagation delay
200
200
ns
TYPICAL CHARACTERISTICS
Figure 1.
Figure 2.
4
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UC1543, UC1544
UC2543, UC2544
UC3543, UC3544
www.ti.com
SLUS188A–APRIL 1997–REVISED FEBRUARY 2007
Current Limit Input Threshold
ID
Figure 3.
Figure 4.
Current Limit Amplifier Gain
Current Limit Amplifier Frequency Response
Figure 5.
Figure 6.
5
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UC1543, UC1544
UC2543, UC2544
UC3543, UC3544
www.ti.com
SLUS188A–APRIL 1997–REVISED FEBRUARY 2007
APPLICATION INFORMATION
The values for the external components are determined as follows:
1000
VTH
=
R1
Current limit input threshold,
CS is determined by the current loop dynamics
VTH VO
+
R2
æ
ö
IP @
ç
RSC RSC R2 + R3
è
÷
ø
Peak current to load,
Short circuit current,
VTH
RSC
ISC
=
2.5( R4 + R5+ R6 )
R5+ R6
VO( low )
=
Low output voltage limit,
High output voltage limit,
2.5( R4 + R5 + R6 )
VO( high )
=
R6
Voltage sensing delay, tD = 10,000Cd
VIN -5
0.2
RG >
SCR trigger power limiting resistor,
Figure 7. Typical Application
6
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UC1543, UC1544
UC2543, UC2544
UC3543, UC3544
www.ti.com
SLUS188A–APRIL 1997–REVISED FEBRUARY 2007
APPLICATION INFORMATION (continued)
Figure 8. Sensing Multiple Supply Voltages
Figure 9. Input Line Monitor
7
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UC1543, UC1544
UC2543, UC2544
UC3543, UC3544
www.ti.com
SLUS188A–APRIL 1997–REVISED FEBRUARY 2007
APPLICATION INFORMATION (continued)
Figure 10. Overcurrent Shutdown
8
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PACKAGE OPTION ADDENDUM
www.ti.com
25-Sep-2013
PACKAGING INFORMATION
Orderable Device
5962-8774001EA
5962-8774001FA
Status Package Type Package Pins Package
Eco Plan Lead/Ball Finish
MSL Peak Temp
Op Temp (°C)
Device Marking
Samples
Drawing
Qty
(1)
(2)
(3)
(4/5)
ACTIVE
CDIP
CFP
J
16
16
1
TBD
A42
A42
N / A for Pkg Type
-55 to 125
5962-8774001EA
UC1543J/883B
ACTIVE
W
25
TBD
N / A for Pkg Type
5962-8774001FA
UC1543W/883B
5962-8774002VA
UC1543J
OBSOLETE
ACTIVE
CDIP
CDIP
J
J
18
16
TBD
TBD
Call TI
A42
Call TI
-55 to 125
-55 to 125
1
1
N / A for Pkg Type
UC1543J
UC1543J883B
ACTIVE
CDIP
J
16
TBD
A42
N / A for Pkg Type
-55 to 125
5962-8774001EA
UC1543J/883B
UC1543L
ACTIVE
ACTIVE
LCCC
LCCC
FK
FK
20
20
1
1
TBD
TBD
POST-PLATE
POST-PLATE
N / A for Pkg Type
N / A for Pkg Type
-55 to 125
-55 to 125
UC1543L
UC1543L883B
UC1543L/
883B
UC1543W883B
ACTIVE
CFP
W
16
25
TBD
A42
N / A for Pkg Type
5962-8774001FA
UC1543W/883B
UC1544J
UC1544J883B
UC1544L
OBSOLETE
OBSOLETE
OBSOLETE
OBSOLETE
NRND
CDIP
CDIP
LCCC
LCCC
SOIC
J
J
18
18
20
20
16
TBD
TBD
TBD
TBD
Call TI
Call TI
Call TI
Call TI
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-40 to 85
FK
FK
DW
Call TI
Call TI
UC1544L883B
UC2543DW
Call TI
Call TI
40
40
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-2-260C-1 YEAR
UC2543DW
UC2543DW
UC2543DWG4
NRND
SOIC
DW
16
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-2-260C-1 YEAR
-40 to 85
UC2543J
UC2543N
ACTIVE
NRND
CDIP
PDIP
J
16
16
1
TBD
A42
N / A for Pkg Type
N / A for Pkg Type
-25 to 85
-40 to 85
UC2543J
UC2543N
N
25
Green (RoHS
& no Sb/Br)
CU NIPDAU
UC2543NG4
NRND
PDIP
N
16
25
Green (RoHS
& no Sb/Br)
CU NIPDAU
N / A for Pkg Type
-40 to 85
UC2543N
UC2544-W
UC2544DW
ACTIVE WAFERSALE
YS
0
TBD
Call TI
Call TI
NRND
NRND
SOIC
SOIC
DW
18
40
40
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-2-260C-1 YEAR
-40 to 85
-40 to 85
UC2544DW
UC2544DW
UC2544DWG4
DW
18
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-2-260C-1 YEAR
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
25-Sep-2013
Orderable Device
Status Package Type Package Pins Package
Eco Plan Lead/Ball Finish
MSL Peak Temp
Op Temp (°C)
Device Marking
Samples
Drawing
Qty
(1)
(2)
(3)
(4/5)
UC2544J
UC2544N
OBSOLETE
NRND
CDIP
PDIP
J
18
18
TBD
Call TI
Call TI
-40 to 85
-40 to 85
N
20
20
Green (RoHS
& no Sb/Br)
CU NIPDAU
N / A for Pkg Type
UC2544N
UC2544NG4
NRND
PDIP
N
18
Green (RoHS
& no Sb/Br)
CU NIPDAU
N / A for Pkg Type
-40 to 85
UC2544N
UC3543J
UC3543N
ACTIVE
NRND
CDIP
PDIP
J
16
16
1
TBD
A42
N / A for Pkg Type
N / A for Pkg Type
0 to 70
0 to 70
UC3543J
UC3543N
N
25
Green (RoHS
& no Sb/Br)
CU NIPDAU
UC3543NG4
NRND
PDIP
N
16
25
Green (RoHS
& no Sb/Br)
CU NIPDAU
N / A for Pkg Type
0 to 70
UC3543N
UC3544J
UC3544N
OBSOLETE
NRND
CDIP
PDIP
J
18
18
TBD
Call TI
Call TI
0 to 70
0 to 70
N
20
20
Green (RoHS
& no Sb/Br)
CU NIPDAU
N / A for Pkg Type
UC3544N
UC3544N
UC3544NG4
NRND
PDIP
N
18
Green (RoHS
& no Sb/Br)
CU NIPDAU
N / A for Pkg Type
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) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
Addendum-Page 2
PACKAGE OPTION ADDENDUM
www.ti.com
25-Sep-2013
(5) Multiple Device Markings will be inside parentheses. Only one Device 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 Device 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.
OTHER QUALIFIED VERSIONS OF UC1543, UC1544, UC2543, UC2543M, UC3543, UC3543M, UC3544 :
Catalog: UC3543, UC3544, UC2543, UC3543M, UC3543
•
Military: UC2543M, UC1543, UC1543, UC1544
•
NOTE: Qualified Version Definitions:
Catalog - TI's standard catalog product
•
Military - QML certified for Military and Defense Applications
•
Addendum-Page 3
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