TC53
TC53-2 5/23/00
© 2001 Microchip Technology Inc. DS21432A
VOLTAGE DETECTOR
FEATURES
■Highly Accurate .................................................±2%
■Low Power Consumption .....................1.0µA, Typ.
■Detect Voltage Range... 1.6V to 6.0V in 0.1V Steps
■Operating Voltage...............................1.5V to 10.0V
■Output Configuration ........... Open Drain or CMOS
■Space-Saving .................. 5-Pin SOT-23A Package,
TYPICAL APPLICATIONS
■Microprocessor Reset Circuits
■Battery Life Monitors and Recharge Voltage
Monitors
■Memory Battery Backup Circuitry
■Power-On Reset Circuits
■Power Failure Detection
■Delay Circuitry
GENERAL DESCRIPTION
The TC53 is a low power voltage detector. Typical
supply current consumption is only 1µA at an input voltage
of 2V. The voltage detection threshold setting is factory-
programmed and guaranteed to ±2% accuracy. Threshold
settings are available over a range of 1.6V to 6.0V in 100mV
steps. The TC53 has both complementary (CMOS) and
open drain (NMOS) output configuration options. TC53 is
the ideal voltage detector for precision applications in which
small size, low installed cost, high accuracy, and low supply
current consumption are critical.
FUNCTIONAL BLOCK DIAGRAM
(1) CMOS Output
(2) N-Channel
Open Drain Output
PART CODE TC-53 N 18 02 ECX XX
C 18 02 ECX XX
N 28 02 ECX XX
C 28 02 ECX XX
N 30 02 ECX XX
C 30 02 ECX XX
ORDERING INFORMATION
V
REF
V
SS
V
OUT
V
IN
V
REF
V
SS
V
OUT
V
IN
Output Configuration:
N = NMOS
C = CMOS
Detect Voltage:
Ex: 28 = 2.8V
Tolerance:
02 = ±2% Tolerance
Temperature/Package:
–40°C to +85°C = E
5-Pin SOT-23A Package = CT
Taping Direction:
TR = Standard
RT = Reverse
PIN CONFIGURATION
3
**5-Pin SOT-23A
5
NC
VOUT VIN
TC53
12
VSS
4
NC
2
VOLTAGE DETECTOR
TC53
TC53-2 5/23/00 © 2001 Microchip Technology Inc. DS21432A
PIN DESCRIPTION
Pin Number Name Description
1V
OUT Output
2V
IN Supply Voltage Input
3V
SS Ground Terminal
4 NC Not Connected
5 NC Not Connected
ABSOLUTE MAXIMUM RATINGS*
Input Voltage (VIN) ......................................................12V
Output Voltage (VOUT)................VIN + 0.3V to VSS – 0.3V
Output Current (IOUT) ...............................................50mA
Power Dissipation (Pd)
SOT-23A.........................................................240mW
Operating Ambient Temperature (TOPR) ..–40°C to +85°C
Storage Temperature (TSTG)..................–40°C to +125°C
*Static-sensitive device. Unused devices must be stored in conductive
material. Protect devices from static discharge and static fields. Stresses
above those listed under Absolute Maximum Ratings may cause perma-
nent 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 operational sections of the specifications is not implied.
Exposure to Absolute Maximum Rating Conditions for extended periods
may affect device reliability.
ELECTRICAL CHARACTERISTICS: TA = +25°C, unless otherwise specified. (Note1), (Note 2).
Symbol Parameter Test Conditions Min Typ Max Unit
VDF Detect Voltage Note 3 VT x 0.98 VT ±0.5% VT x 1.02 V
VHYS Hysteresis Range VDFx0.02 VDF x 0.05 VDFx0.08 V
ISS Supply Current VIN = 1.5V — 0.9 2.6 µA
VIN = 2.0V — 1.0 3.0 µA
VIN = 3.0V — 1.3 3.4 µA
VIN = 4.0V — 1.6 3.8 µA
VIN = 5.0V — 2.0 4.2 µA
VIN Operating Voltage VDF = 2.1 to 6.0V 1.5 — 10.0 V
IOUT Output Current N-ch; VDS = 0.5V VIN = 1.0V — 2.2 — mA
VIN = 2.0V — 7.7 — mA
VIN = 3.0V — 10.1 — mA
VIN = 4.0V — 11.5 — mA
VIN = 5.0V — 13.0 — mA
P-ch; VDS = 2.1V VIN = 8.0V — –10.0 — mA
(CMOS Output)
∆V
DF
/(∆T
OPR
V
DF
)
Temperature Characteristics — ±100 — ppm/°C
tDLY Delay Time — 0.2 msec
(VDR ➔ VOUT Inversion)
NOTES: 1. An additional resistor between the VIN pin and the supply voltage may cause alterations in the characteristics due to the increasing values of VDR.
2. The power consumption during power-start to output being stable (release operation) is 2µA greater than it is after that period (comple-
tion of release operation) because of rush current in the delay circuit.
3. VT is the factory-programmed voltage detection threshold.
3
TC53
VOLTAGE DETECTOR
TC53-2 5/23/00
© 2001 Microchip Technology Inc. DS21432A
represents output configuration and 1st integer of voltage
Symbol Output Voltage
A CMOS 0.
B CMOS 1.
C CMOS 2.
D CMOS 3.
E CMOS 4.
F CMOS 5.
H CMOS 6.
MARKINGS
3
Symbol Output Voltage
K Nch 0.
L Nch 1.
M Nch 2.
N Nch 3.
P Nch 4.
R Nch 5.
S Nch 6.
represents 1st decimal of voltage
Symbol Voltage Symbol Voltage
0.05 .5
1.16 .6
2.27 .7
3.38 .8
4.49 .9
represents delay function and delay time
3 = no delay function
represents assembly lot code
5-Pin SOT-23A
TIMING DIAGRAM
INPUT VOLTAGE (VIN)
DETECT RELEASE VOLTAGE (VDR)
DETECT VOLTAGE (VDF)
MINIMUM OPERATING VOLTAGE (VMIN)
GROUND VOLTAGE (VSS)
OUTPUT VOLTAGE (VOUT)
GROUND VOLTAGE (VSS)
4
VOLTAGE DETECTOR
TC53
TC53-2 5/23/00 © 2001 Microchip Technology Inc. DS21432A
PACKAGE DIMENSIONS
Dimensions: inches (mm)
TAPE AND REEL
User Direction of Feed User Direction of Feed
Device
Marking
Component Taping Orientation for 5-Pin SOT-23A (EIAJ SC-74A) Devices
Device
Marking
PIN 1
PIN 1
Standard Reel Component Orientation
TR Suffix Device
(Mark Right Side Up)
Reverse Reel Component Orientation
RT Suffix Device
(Mark Upside Down)
W
P
Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size
5-Pin SOT-23A 8 mm 4 mm 3000 7 in
Carrier Tape, Number of Components Per Reel and Reel Size
5-Pin SOT-23A (EIAJ SC-74A)
.071 (1.80)
.059 (1.50)
.122 (3.10)
.098 (2.50)
.075 (1.90)
REF.
.020 (0.50)
.012 (0.30)
PIN 1 .037 (0.95)
REF.
.122 (3.10)
.106 (2.70)
.057 (1.45)
.035 (0.90)
.006 (0.15)
.000 (0.00) .024 (0.60)
.004 (0.10)
10° MAX. .010 (0.25)
.004 (0.09)
5
TC53
VOLTAGE DETECTOR
TC53-2 5/23/00
© 2001 Microchip Technology Inc. DS21432A
Information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by
update s. It is y our re sponsibilit y to en sure that your appli cation m eets with y our sp ecifications . No re presen tation or warra nty is given and no lia bility is
assumed by M icrochip Technology In corpor ated with respec t to the accur acy or use of such infor mation, or infringem ent of paten ts or other intell ectual
property rights arising from such use or otherwise. Use of Microchipís products as critical components in life support systems is not authorized except with
express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, except as maybe explicitly expressed herein, under any intellec-
tual prop erty rights. The Micro chip logo and name a re registered trad emarks of Microchip Technology In c. in the U.S.A. and oth er countries. All rig hts
reserved. All other trademarks mentioned herein are the property of their respective companies.
All rights reserved. © 2001 Microchip Technology Incorporated. Printed in the USA. 1/01 Printed on recycled paper.
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