TS12001 TOUCHSTONE [Touchstone Semiconductor Inc], TS12001 Datasheet

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TS12001

Manufacturer Part Number
TS12001
Description
A 0.65V/1?A Nanopower Voltage Detector with Dual Outputs
Manufacturer
TOUCHSTONE [Touchstone Semiconductor Inc]
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
TS12001-C021DFNR
Quantity:
5 420
Part Number:
TS12001-C021DFNR
Quantity:
3 000
FEATURES
APPLICATIONS
Power-Fail Indicator
Low-Battery Detection
Battery-Backup Detection
CPU, Microprocessor, and Logic Reset Controller
Battery-powered Systems
TYPICAL APPLICATION CIRCUIT
The Touchstone Semiconductor logo and “NanoWatt Analog” are
registered trademarks of Touchstone Semiconductor, Incorporated.
Nanopower Voltage Detector in Single 4 mm
Package
Ultra Low Total Supply Current: 1µA (max)
Supply Voltage Operation: 0.65V to 2.5V
Preset 0.78V UVLO Trip Threshold
Internal ±10mV Hysteresis
Resettable Latched Comparator
Complimentary and Open-drain Comparator
Outputs
Separate Comparator Output Supply Pin
A 0.65V/1µA Nanopower Voltage Detector with Dual Outputs
A Nanopower 1.8V Core System Voltage Detector
2
© 2012 Touchstone Semiconductor, Inc. All rights reserved.
DESCRIPTION
The TS12001 voltage detector combines a 0.58V
reference
comparator latch in a single package. The TS12001
operates from a single 0.65V to 2.5V power supply
and consumes less than 1µA total supply current.
Optimized for ultra-long life operation, the TS12001
expands Touchstone’s growing “NanoWatt Analog™”
high-performance analog integrated circuits portfolio.
The voltage detector exhibits a preset UVLO
threshold voltage of 0.78V (typ) or can be set to other
threshold voltages with two external resistors. The
comparator exhibits ±10mV of internal hysteresis for
clean, chatter-free output switching. The TS12001
also offers both push-pull and open-drain outputs.
When compared against similar products, the
TS12001
consumption and at least a 33% reduction in pcb
area.
The TS12001 is fully specified over the -40°C to
+85°C temperature range and is available in a low-
profile, 10-pin 2x2mm TDFN package with an
exposed back-side paddle.
and
offers
a
a
comparator
factor-of-2
TS12001
with
lower
resettable
Page 1
power

Related parts for TS12001

TS12001 Summary of contents

Page 1

... TS12001 offers a consumption and at least a 33% reduction in pcb area. The TS12001 is fully specified over the -40°C to +85°C temperature range and is available in a low- profile, 10-pin 2x2mm TDFN package with an exposed back-side paddle. © 2012 Touchstone Semiconductor, Inc. All rights reserved. ...

Page 2

... Junction Temperature……………………………………..……+150° Storage Temperature Range ................................. -65°C to +150°C - 0.3V to +5.5V SS Lead Temperature (Soldering, 10s) ..................................... +300°C PART CARRIER QUANTITY MARKING Tape & Reel AAN Tape & Reel = +70°C) A ----- 3000 TS12001DS r1p0 RTFDS ...

Page 3

... COUTOD; V Leakage Note 1: All devices are 100% production tested at T Note 2: A SET voltage above this threshold voltage enables the SET pin voltage to control the comparator output. TS12001DS r1p0 = HiZ HiZ -40°C to +85°C, unless otherwise noted. Typical values are at ...

Page 4

... COUTPP output. 0.58V Reference Output No Connection Comparator Open-Drain Output Comparator Push-Pull Output Output Driver Positive Supply Voltage. Connect a 0.1µF bypass capacitor from this pin to analog VSS/GND. Exposed paddle is electrically connected to VSS/GND HIGH. The TS12001DS r1p0 RTFDS ...

Page 5

... HIGH and the open-drain output (COUTOD) will be LOW and vice versa. For proper operation, the supply voltage V must be applied before the output IN driver supply voltage (OV The TS12001 has a latch enable pin ( TS12001 non-inverting input of the is applied. ...

Page 6

... R2(MΩ) designed around the TS12001 providing a low battery detect signal. R1 and R2 were selected to set a SET 4.02 voltage at 582mV so that when VCORE drops below 4.02 1.77V, the TS12001 output transitions to LOW 4.02 recommended to use 1% resistors for optimal 4.02 accuracy. 4.02 0.75µA of current when VCORE = 1.8V. ...

Page 7

... Radiated noise is common in low power circuits that require high impedance circuits. To minimize this effect, all traces between any of the inputs and passive component networks should be made as short as possible. Figure 1. External Voltage Detector Design Circuit Figure 2. A Nanopower 1.8V Core System Voltage Detector Circuit TS12001DS r1p0 TS12001 Page 7 RTFDS ...

Page 8

... Bsc ± 2.000 0.050 ± 0.200 0.050 BOTTOM VIEW NOTE! · All dimensions in mm. · This part is compliant with JEDEC MO-229 spec 0.152 Ref A PIN #1 IDENTIFICATION 1.400±0.050 Exp.DAP MAX. 0.600 NOM. 0.550 MIN. 0.500 Page 8 TS12001DS r1p0 RTFDS ...

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