TS12001
A 0.65V/1µA Nanopower Voltage Detector with Dual Outputs
FEATURES
DESCRIPTION
Nanopower Voltage Detector in Single 4 mm
2
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
The TS12001 voltage detector combines a 0.58V
reference and a comparator with resettable
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 the 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 offers a factor-of-2 lower power
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.
APPLICATIONS
Power-Fail Indicator
Low-Battery Detection
Battery-Backup Detection
CPU, Microprocessor, and Logic Reset Controller
Battery-powered Systems
TYPICAL APPLICATION CIRCUIT
A Nanopower 1.8V Core System Voltage Detector
Page 1
© 2014 Silicon Laboratories, Inc. All rights reserved.
TS12001
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
IN
to V
SS
) ...................................................+2.75V
Supply Voltage (OV
DD
to V
SS
) ................................................+2.75V
Input Voltage
SET………………...…………………...….V
SS
– 0.3V to V
IN
+ 0.3V
LHDET………………………………….…........V
SS
- 0.3V to +5.5V
Output Voltage
REFOUT……….…………………...…... V
SS
– 0.3V to V
IN
+ 0.3V
COUTPP……………..……….........… V
SS
- 0.3V to OV
DD
+ 0.3V
COUTOD……………………..…..………..… V
SS
- 0.3V to +5.5V
Output Current
COUTPP, COUTOD………...…………................................20mA
Short-Circuit Duration
(REFOUT, COUTPP, COUTOD)………...………...….Continuous
Continuous Power Dissipation (T
A
= +70°C)
10-Pin TDFN (Derate at 13.48mW/°C above +70°C) ......... 1078mW
Operating Temperature Range ................................. -40°C to +85°C
Junction Temperature……………………………………..……+150°C
Storage Temperature Range .................................. -65°C to +150°C
Lead Temperature (Soldering, 10s)...................................... +300°C
Electrical and thermal stresses beyond 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 condition beyond those indicated in the operational sections
of the specifications is not implied. Exposure to any absolute maximum rating conditions for extended periods may affect device reliability and
lifetime.
PACKAGE/ORDERING INFORMATION
ORDER NUMBER
PART
CARRIER QUANTITY
MARKING
TS12001ITD1022
AAN
TS12001ITD1022T
Tape
& Reel
Tape
& Reel
-----
3000
Lead-free Program:
Silicon Labs supplies only lead-free packaging.
Consult Silicon Labs for products specified with wider operating temperature ranges.
Page 2
TS12001 Rev. 1.0
TS12001
ELECTRICAL CHARACTERISTICS
V
IN
= OV
DD
= 0.8V; V
SS
= 0V; V
SET
= V
SS
; V
COUTPP
= HiZ; V
COUTOD
= HiZ; T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at
T
A
= +25°C. See note 1.
PARAMETER
SYMBOL CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage
V
IN
0.65
2.5
V
0.8
T
A
= +25°C
µA
Supply Current
I
IN
REFOUT = open
-40°C
≤
T
A
≤
85°C
1
UVLO Output
Driver Supply
OV
DD
0.65
2.5
V
Voltage
Output Driver
0.1
µA
I
ODD
Supply Current
725
761
797
V
IN
falling until COUTPP switches LOW
Preset UVLO
mV
Trip Point
V
IN
rising until COUTPP switches HIGH
743
781
818
540
567
595
T
A
= +25°C
V
SET
falling until COUTPP switches LOW
-40°C
≤
T
A
≤
85°C
534
604
SET Trip Point
560
587
615
T
A
= +25°C
V
SET
rising until COUTPP switches HIGH
-40°C
≤
T
A
≤
85°C
550
620
13
V
SET
rising
SET Trip
µs
Response Time
V
SET
falling
10
Preset UVLO
±10
mV
Trip Hysteresis
SET Enable
See Note 2
90
mV
Threshold
SET Input
20
nA
V
SET
= V
SS
; V
SET
= V
IN
Leakage
0.1
0.78V
≤
V
IN
≤
1.1V
Comparator Latched Output
LHDET Input
V
V
IL
Enabled
Low Voltage
1.1V < V
IN
≤
2.5V
0.2
V
IN
-0.1
0.78V
≤
V
IN
≤
1.1V
Comparator Latched Output
LHDET Input
V
V
IH
Disabled
1.1V < V
IN
≤
2.5V
1
High Voltage
LHDET Input
100
nA
V
LHDET
= V
SS
; V
LHDET
= 5.5V
Leakage
555
577
600
T
A
= +25°C
Reference
mV
V
REF
Output Voltage
-40°C
≤
T
A
≤
85°C
552
602
Reference
0.5
%
Load
I
OUT
= ±100nA
Regulation
Output High
V
OH
COUTPP; I
OUT
= -100μA
V
IN
– 0.1
V
Voltage
Output Low
COUTPP; I
OUT
= 100μA
V
SS
+ 0.1
V
V
OL
Voltage
Output Low
COUTOD; I
OUT
= 100μA
V
SS
+ 0.11
V
V
OL
Voltage
0.1
mA
Sourcing; V
COUTPP
= V
SS
Output Short-
Circuit
I
SC
Sinking; V
COUTPP
= V
IN
0.5
mA
Current,
Sinking; V
COUTOD
= V
IN
1.4
mA
Open Drain
COUTOD; V
COUTOD
= 5V
20
nA
Leakage
Note 1:
All devices are 100% production tested at T
A
= +25°C and are guaranteed by characterization for T
A
= T
MIN
to T
MAX
, as specified.
Note 2:
A SET voltage above this threshold voltage enables the SET pin voltage to control the comparator output.
TS12001 Rev. 1.0
Page 3
TS12001
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
= OV
DD
= 2.5V; V
SS
= 0V; V
SET
= V
SS
; V
COUTPP
= HiZ; V
COUTOD
= HiZ, unless otherwise noted. Typical values are at T
A
= +25°C.
Supply Current
vs Supply Voltage and Temperature
0.8
REFERENCE VOLTAGE - V
0.592
Reference Voltage vs Temperature
SUPPLY CURRENT - µA
0.7
T
A
= +85ºC
T
A
= +25ºC
0.59
0.588
0.6
T
A
= -40ºC
0.5
0.586
0.584
0.4
0.65 1.02
1.39
1.76
2.13
2.5
SUPPLY VOLTAGE - Volt
SET Threshold Voltage
vs Temperature
0.6
SET THRESHOLD VOLTAGE - V
Low-to-High
V
IN
- V
OH
- V
0.582
-40
-15
10
35
60
85
TEMPERATURE - ºC
COUTPP Output Voltage High
vs Source Current
0.6
0.5
0.4
0.3
0.2
0.1
0
0.595
0.59
0.585
High-to-Low
0.58
0.575
-40
-15
10
35
60
85
0
1
2
3
4
TEMPERATURE - ºC
COUTPP Output Voltage Low
vs Sink Current
0.4
SHORT-CIRCUIT CURRENT - mA
2.5
SOURCE CURRENT - mA
COUTOD Short-Circuit Current
vs Supply Voltage
V
COUTOD
= V
IN
2
0.3
V
OL
- V
0.2
1.5
0.1
1
0
0
1
2
3
0.5
0.65
1.11
1.58
2.04
2.5
SINK CURRENT - mA
SUPPLY VOLTAGE - V
Page 4
TS12001 Rev. 1.0
TS12001
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
= OV
DD
= 2.5V; V
SS
= 0V; V
SET
= V
SS
; V
COUTPP
= HiZ; V
COUTOD
= HiZ, unless otherwise noted. Typical values are at T
A
= +25°C.
COUTPP Short-Circuit Current
vs Supply Voltage
16
SHORT-CIRCUIT CURRENT - mA
SHORT-CIRCUIT CURRENT - mA
V
COUTPP
= V
SS
12
18
V
COUTPP
= V
IN
COUTPP Short-Circuit Current
vs Supply Voltage
12
8
6
4
0
0.65
1.11
1.58
2.04
2.5
0
0.65
1.11
1.58
2.04
2.5
SUPPLY VOLTAGE - V
COUTPP Power-Up Transient Response
V
SET
= 2.5V, C
LOAD
= 15pF
COUTPP LHDET
SET
2V/DIV 2V/DIV 500mV/DIV
SUPPLY VOLTAGE - V
COUTPP Transient Response with LHDET
V
IN
= OV
DD
= 2.5V, C
LOAD
= 15pF
OUTPUT
1V/DIV
V
IN
1V/DIV
100ms/DIV
500µs/DIV
TS12001 Rev. 1.0
Page 5
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