2001-2015 Microchip Technology Inc. DS20001430E-page 1
TC52
Features
Two Independent Voltage Detectors in One
Package
Highly Accurate: ±2%
Low Power Consumption: 2.0 μA, typical
Channel 1 Detect Voltage: 3.0V, 4.5V
Channel 2 Detect Voltage: 2.7V
Operating Voltage: 1.5V to 10.0V
Output Configuration: N-Channel Open-Drain
Space-Saving 5-Pin SOT-23 Package
Typical Applications
Battery Life Monitors and Recharge Voltage
Monitors
Memory Battery Backup Circuitry
Power-On Reset Circuits
Power Failure Detection
Delay Circuitry
Package Type
Description
The TC52 consists of two independent low-power
voltage detectors in a space-saving 5-pin SOT-23
package. Typical supply current consumption is only
2μA at an input voltage of 2V. The voltage detection
threshold settings are factory-programmed and
guaranteed to ±2% accuracy. The TC52 is available
with open drain (NMOS) configurations. Small-size,
high-precision, low-supply current, and low installed
cost makes the TC52 the ideal voltage detector for a
wide variety of voltage monitoring applications.
Functional Block Diagram
5-Pin SOT-23
123
54
VIN1
VIN2
GND
VOUT2
VOUT1
+
+
V
IN1
V
IN2
V
REF
V
OUT1
V
OUT2
GND
Dual-Channel Voltage Detector
Obsolete Device
TC52
DS20001430E-page 2 2001-2015 Microchip Technology Inc.
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Input Voltage ........................................................+12V
Output Current ...................................................50 mA
Output Voltage.......................VIN + 0.3V to VSS –0.3V
Power Dissipation
5-Pin SOT-23 ............................................100 mW
Operating Temperature Range.............-40°C to +85°C
Storage Temperature Range ..............-40°C to +125°C
† Notice: Stresses above those listed under "Absolute
Maximum Ratings" may cause permanent damage to
the device. These are stress ratings only and functional
operation of the device at these or any other conditions
above those indicated in the operation sections of the
specifications is not implied. Exposure to Absolute
Maximum Rating conditions for extended periods may
affect device reliability.
DC ELECTRIC AL CHARACTERISTICS
Electrical Specifications: TA= 25°C, unless otherwise specified. Note 1.
Parameter Sym. Min. Typ. Max. Units Conditions
Operating Voltage VIN 1.5 10.0 V VDF (T) = 1.5 to 5.0V
Supply Current ISS 1.35 3.90 μAV
IN1 =1.5V
1.50 4.50 VIN1 =2.0V
1.95 5.10 VIN1 =3.0V
2.40 5.70 VIN1 =4.0V
3.00 6.30 VIN1 =5.0V
Input Current VIN2 IIN2 0.45 1.30 μAV
IN1 =1.5V
0.50 1.50 VIN1 =2.0V
0.65 1.70 VIN1 =3.0V
0.80 1.90 VIN1 =4.0V
1.00 2.10 VIN1 =5.0V
Channel 1
Detect Voltage
VDET1-V
T1 x0.98 V
T1 ±0.5% V
T1 x 1.02 V Note 2
Channel 2
Detect Voltage
VDET2 -V
T2 x0.98 V
T2 ±0.5% V
T2 x 1.02 V Note 2
Hysteresis Range 1 VHYS1 VDET1-x0.02 V
DET1-x0.05 V
DET1-x0.08 V
Hysteresis Range 2 VHYS2 VDET2-x0.02 V
DET2-x0.05 V
DET2-x0.08 V
Output Current IOUT 0.3 2.2 mA VOL = 0.5V, VIN1 =1.0V
3.0 7.7 VOL = 0.5V, VIN1 =2.0V
5.0 10.1 VOL = 0.5V, VIN1 =3.0V
6.0 11.5 VOL = 0.5V, VIN1 =4.0V
7.0 13.0 VOL = 0.5V, VIN1 =5.0V
Temperature
Characteristics
ΔVDET -/
(ΔTOPR
VDET -)
±100 ppm/°C -40°C TOPR 85°C
Detection Time tDLY 0.2 msec Time from VIN =V
DET-
to VOUT =V
OL
Note 1: Additional resistance between the VIN1 pin and the supply voltage may alter the electrical characteristics.
2: VT1, VT2 are the factory-programmed voltage detection thresholds.
2001-2015 Microchip Technology Inc. DS20001430E-page 3
TC52
2.0 PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
3.0 DETAILED DESCRIPTION
In normal steady-state operation and for either
channel, when VIN >V
DET-, the output is high, see
Figure 3-1. (In the case of the TC52N, this is an open-
drain condition.) If and when the input falls below
VDET-, the output pulls down (Logic 0) to VSS.
Generally, VOUT can pull down to within 0.5V of VSS at
rated output current and input voltages. (Also see
Section 1.0, Electrical Characteristics).
The output, VOUT, stays valid until the input voltage falls
below the minimum operating voltage, VINMIN, of 0.7V.
Below this minimum operating voltage, the output is
undefined. During power-up or anytime VIN has fallen
below VINMIN, VOUT will remain undefined until VIN rises
above VINMIN, at which time the output becomes valid.
VOUT is maintained in its active low state while
VINMIN <V
IN <V
DET+. (VDET+=V
DET-+V
HYST). If and
when the input rises above VDET+, the output will
assume its inactive state (open-drain for TC52N).
FIGURE 3-1: Timing Diagram.
TABLE 2-1: PIN FUNCTION TABLE
Pin No.
(5-Pin SOT-23) Symbol Description
1V
OUT1 Detector #1 output
2V
IN Supply voltage input, detect voltage 1
3 GND Ground terminal
4V
IN2 Detect voltage 2
5V
OUT2 Detector #2 output
VINx
Detect Voltage VDET
Minimum Operating
Voltage
Ground Level
VOUTx
Output Voltage
Ground Level
VDET+
VHYST
Release Voltage
or RESET Voltage
TC52
DS20001430E-page 4 2001-2015 Microchip Technology Inc.
4.0 APPLICATION INFORMATION
Pin 2 (VIN1) acts as both the input to Voltage Detector
#1 and the power supply input for the chip. As such,
always assign VIN1 to monitor voltages between 1.5V
and 10V. Failure to do this will result in unreliable
detector operation due to an out-of-tolerance supply
voltage. In high-noise environments, it may be
necessary to install a small input bypass capacitor
(0.01 μF to 0.1 μF) from VIN1 to ground to minimize on-
chip power supply noise.
2001-2015 Microchip Technology Inc. DS20001430E-page 5
TC52
5.0 PACKAGING INFORMATION
5.1 Package Marking Information
5-Lead SOT-23 Example
N0C2
Standard Markings for SOT-23
Par t Number Co d e
TC52N3027ECTTR N0C#
TC52N4527ECTTR N0P#
Note: In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for customer-specific information.
Legend: XX...X Customer-specific information
Y Year code (last digit of calendar year)
YY Year code (last 2 digits of calendar year)
WW Week code (week of January 1 is week ‘01’)
NNN Alphanumeric traceability code
Pb-free JEDEC designator for Matte Tin (Sn)
*This package is Pb-free. The Pb-free JEDEC designator ( )
can be found on the outer packaging for this package.
3
e
3
e
N-channel Indication and Integer Part of Output Voltage
Symbol Output
NNch
Registration Serial Number
Symbol Detected Voltage 1 Detected Voltage 2
0C 3.0 2.7
0P 4.5 2.7
TC52
DS20001430E-page 6 2001-2015 Microchip Technology Inc.
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2001-2015 Microchip Technology Inc. DS20001430E-page 7
TC52
5-Lead Plastic Small Outline Transistor (CT) [SOT-23]
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
TC52
DS20001430E-page 8 2001-2015 Microchip Technology Inc.
NOTES:
2001-2015 Microchip Technology Inc. DS20001430E-page 9
TC52
APPENDIX A: REVISION HISTORY
Revision E (February 2015)
Updated device status to Obsolete.
Revision D (August 2013)
The following is the list of modifications:
1. Updated the detect voltage values in
“Features”.
2. Updated the “Package Type” drawing.
3. Updated Section 5.0, "Packaging Informa-
tion" with the latest package specification draw-
ings.
4. Updated the "Product Identifica tion Sys tem "
section.
Revision C (December 2012)
Added a note to each package outline drawing.
Revision B (May 2002)
Undocumented changes.
Revision A (March 2001)
Original Release of this Document.
2001-2015 Microchip Technology Inc. DS20001430E-page 10
TC52
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
PART NO. -X XX
PackageTemperature
Range
Device
Device: TC52N3027ECTTR: 3.0V and 2.7V Dual Channel Voltage
Detector (Tape and Reel)
TC52N4527ECTTR: 4.5V and 2.7V Dual Channel Voltage
Detector (Tape and Reel)
Output Configuration: N = Open Drain
Dete cte d Vo ltage 1: 30 = 3.0V
45 = 4.5V
Dete cte d Vo ltage 2: 27 = 2.7V
Temperature Range: E= -40°C to +125°C
Package: CT = Plastic Small Outline Transistor (CT), 5-Lead
Examples:
a) TC52N3027ECTTR: 3.0V and 2.7V
Dual Channel Voltage Detector,
5LD SOT-23 package,
Tape and Reel
b) TC52N4527ECTTR: 4.5V and 2.7V
Dual Channel Voltage Detector,
5LD SOT-23 package,
Tape and Reel
XX
Tape and Reel
XX
Detected
Voltage 1
XX
Detected
Voltage 2
X
Output
Configuration
2001-2015 Microchip Technology Inc. DS20001430E-page 15
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
FlashFlex, flexPWR, JukeBlox, KEELOQ, KEELOQ logo, Kleer,
LANCheck, MediaLB, MOST, MOST logo, MPLAB,
OptoLyzer, PIC, PICSTART, PIC32 logo, RightTouch, SpyNIC,
SST, SST Logo, SuperFlash and UNI/O are registered
trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
The Embedded Control Solutions Company and mTouch are
registered trademarks of Microchip Technology Incorporated
in the U.S.A.
Analog-for-the-Digital Age, BodyCom, chipKIT, chipKIT logo,
CodeGuard, dsPICDEM, dsPICDEM.net, ECAN, In-Circuit
Serial Programming, ICSP, Inter-Chip Connectivity, KleerNet,
KleerNet logo, MiWi, MPASM, MPF, MPLAB Certified logo,
MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code
Generation, PICDEM, PICDEM.net, PICkit, PICtail,
RightTouch logo, REAL ICE, SQI, Serial Quad I/O, Total
Endurance, TSHARC, USBCheck, VariSense, ViewSpan,
WiperLock, Wireless DNA, and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
Silicon Storage Technology is a registered trademark of
Microchip Technology Inc. in other countries.
GestIC is a registered trademarks of Microchip Technology
Germany II GmbH & Co. KG, a subsidiary of Microchip
Technology Inc., in other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2001-2015, Microchip Technology Incorporated, Printed in
the U.S.A., All Rights Reserved.
ISBN: 978-1-63277-069-1
Note the following details of the code protection feature on Microchip devices:
Microchip products meet the specification contained in their particular Microchip Data Sheet.
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
Microchip is willing to work with the customer who is concerned about the integrity of their code.
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Microchip received ISO/TS-16949:2009 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperiph erals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
QUALITY MANAGEMENT S
YSTEM
CERTIFIED BY DNV
== ISO/TS 16949 ==
DS20001430E-page 28 2001-2015 Microchip Technology Inc.
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01/27/15