TK610xx
ADVANCED
INFORMATION
VOLTAGE DETECTOR
FEATURES
APPLICATIONS
■ Very Low Quiescent Current ( 1 µA)
■ No External Components
■ Battery Powered Systems
■ Wireless Telephones
■ Built In Hysteresis (5% typ.)
■ ±2 % Voltage Detection Accuracy
■ Miniature Package (SOT23-5)
■ Pagers
■ Personal Communications Equipment
■ Personal Digital Assistants
DESCRIPTION
The TK610xx family of voltage detectors is designed to
provide accurate monitoring of the battery voltage. These
low powered CMOS devices require no external
components and are available in 0.1 V steps from 2.0 V to
5.0 V.
TK610xx
OUT
NC
NC
When the input voltage reaches the detection voltage, the
output goes low. This detection voltage has a ±2 %
accuracy and is set at the factory. When the input voltage
goes high, the output will stay low until the voltage reaches
the detection voltage plus hysteresis (+3 to +7 %).
01S
V
DD
GND
The TK610xx is available in a miniature SOT23-5 surface
mount package.
BLOCK DIAGRAM
V
DD
ORDERING INFORMATION
TK610
S
OUT
Voltage Code
Tape/Reel Code
V
ref
GND
VOLTAGE CODE *
TAPE/REEL CODE
TL: Tape Left
36 = 3.6 V
40 = 4.0 V
41 = 4.1 V
42 = 4.2 V
45 = 4.5 V
23 = 2.3 V
25 = 2.5 V
27 = 2.7 V
30 = 3.0 V
33 = 3.3 V
* Consult factory for availability of other voltages
October 1999 TOKO, Inc.
Page 1