TS12001 TOUCHSTONE | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 8
Technical content
© 2012 Touchstone Semiconductor, Inc. All rights reserved.
FEATURES
Nanopower Voltage Detector in Single 4 mm2 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
APPLICATIONS
CPU, Microprocessor, and Logic Reset Controller Battery-powered Systems
DESCRIPTION
The TS120 01 voltage detector combines a 0.58 V reference and a comparator with resettable comparator latch in a single package. The TS12001 operates from a single 0.65 V to 2.5V power supply and consume s less than 1 µA total supply current. Optimized for ultra -long life operation, the TS12001 expands Touchstone’s growing “NanoWatt Ana log™” high-performance analog integrated circuits portfolio. The voltage detector exhibits a pres et UVLO threshold voltage of 0.78V (typ) or can be set to other threshold voltages with two external resistors. The comparator exhibits ±10 mV of internal hyst eresis for clean, chatter -free output switching. The TS12001 also offers both push -pull and open -drain outputs. When compared against similar products, the TS12001 offer s a factor -of-2 lower pow er 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. A 0.65V/1µA Nanopower Voltage Detector with Dual Outputs TYPICAL APPLICATION CIRCUIT The Touchstone Semiconductor logo and “NanoWatt Analog” are registered trademarks of Touchstone Semiconductor, Incorporated. A Nanopower 1.8V Core System Voltage Detector
Continuous Power Dissipation (TA = +70°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 MARKING CARRIER QUANTITY TS12001ITD1022TP AAN Tape & Reel ----- TS12001ITD1022T Tape & Reel 3000 Lead-free Program: Touchstone Semiconductor supplies only lead-free packaging. Consult Touchstone Semiconductor for products specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
VIN = OVDD = 0.8V; VSS = 0V; VSET = VSS; VCOUTPP = HiZ; VCOUTOD = HiZ; TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C. See note 1. PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage VIN 0.65 2.5 V Supply Current IIN REFOUT = open TA = +25°C 0.8 µA -40°C ≤ TA ≤ 85°C 1 UVLO Output Driver Supply Voltage OVDD 0.65 2.5 V Output Driver Supply Current IODD 0.1 µA Preset UVLO Trip Point VIN falling until COUTPP switches LOW 725 761 797 mV VIN rising until COUTPP switches HIGH 743 781 818 SET Trip Point VSET falling until COUTPP switches LOW TA = +25°C 540 567 595 -40°C ≤ TA ≤ 85°C 534 604 VSET rising until COUTPP switches HIGH TA = +25°C 560 587 615 -40°C ≤ TA ≤ 85°C 550 620 SET Trip Response Time VSET rising 13 µs VSET falling 10 Preset UVLO Trip Hysteresis ±10 mV SET Enable Threshold See Note 2 90 mV SET Input Leakage VSET = VSS; VSET = VIN 20 nA ET Input Low Voltage VIL Comparator Latched Output Enabled ET Input High Voltage VIH Comparator Latched Output Disabled ET Input Leakage V ET = VSS; V ET = 5.5V 100 nA Reference Output Voltage VREF TA = +25°C 555 577 600 mV -40°C ≤ TA ≤ 85°C 552 602 Reference Load Regulation IOUT = ±100nA 0.5 % Output High Voltage VOH COUTPP; IOUT = -100μA VIN – 0.1 V Output Low Voltage VOL COUTPP; IOUT = 100μA VSS + 0.1 V Output Low Voltage VOL COUTOD; IOUT = 100μA VSS + 0.11 V Output Short- Circuit Current, ISC Sourcing; VCOUTPP = VSS 0.1 mA Sinking; VCOUTPP = VIN 0.5 mA Sinking; VCOUTOD = VIN 1.4 mA Open Drain Leakage COUTOD; VCOUTOD = 5V 20 nA Note 1: All devices are 100% production tested at TA = +25°C and are guaranteed by characterization for TA = TMIN to TMAX, as specified. Note 2: A SET voltage above this threshold voltage enables the SET pin voltage to control the comparator output.
1 VIN Positive Supply Voltage. Connect a 0.1µF bypass capacitor from this pin to analog VSS/GND.
2 SET
External UVLO Trip Threshold Set Pin. When this pin is set to VSS, the internal preset 0.78V UVLO trip threshold controls the comparator output. When the applied voltage to this pin is higher than 90mV, the SET pin sets the trip threshold and controls the comparator output. If the SET pin is not used, connect the pin to to VSS.
3 NC No Connection
4 VSS Negative Supply Voltage. 5 ET Latch Enable Pin. When ET is set HIGH, the outputs of the comparator will toggle normally based on the inputs to the comparator. When ET is set LOW and COUTPP is HIGH, COUTPP will remain HIGH despite any changes to the input of the comparator. COUTPP will once again respond to changes to the input when ET is toggled HIGH. If COUTPP is initially LOW and the ET is then LOW, COUTPP will stay LOW. If a LOW-to-HIGH transition occurs on COUTPP, COUTPP will switch to HIGH and stay HIGH and not respond to any changes at the input. The ET pin must always be set to a known state. For unlatched comparator operation, set ET to HIGH. The open-drain output (COUTOD) is the inverted version of the COUTPP output. 6 REFOUT 0.58V Reference Output
7 NC No Connection
8 COUTOD Comparator Open-Drain Output
9 COUTPP Comparator Push-Pull Output
10 OVDD Output Driver Positive Supply Voltage. Connect a 0.1µF bypass capacitor from this pin to analog VSS/GND. EP ---- Exposed paddle is electrically connected to VSS/GND.
The TS12001 combines a 0. 58V ±4.5% reference and an analog comparator with a resettable comparator latch in a single package. The TS 12001 operates from a single 0.65 V to 2.5V power supply and consume s less than 1 µA total supply current. The TS12001 comparator has a push-pull and open- drain output driver. The push -pull output driver is powered from a separate supply voltage, OV DD. The open-drain output stage allows for easy output voltage l evel translation as may be required when driving systems powered with a different power supply rail. The analog comparator exhibits ±10mV of internal hysteresis for clean, chatter -free output switching. The internal reference was designed to sink or source up to 0.1µA load currents. The TS12001 has a preset UVLO threshold voltage of 0.78 V (typ) or can be set to other threshold voltages with two external resistors where the divided voltage is applied to the SET pin. When the SET pin voltage is grounded or i t is less than approximately 90mV, the internal preset UVLO threshold circuit will control the comparator output s. If the SET pin is above approximately 90mV, the external voltage divider circuit will control the comparator outputs. The 0.58V reference vol tage is tied to the inverting input of the comparator and the output of a switch is connected to the non -inverting input of the comparator. The output of the switch is either the SET voltage or the internal UVLO threshold voltage, depending on whether the SET pin voltage is above or below approximately 90mV. If the switch output is above 0.58V, the pu sh-pull output ( COUTPP) will be HIGH and the op en-drain output ( COUTOD) will be LOW and vice versa. For proper operation, the supply voltage V IN must be applie d before the output driver supply voltage (OVDD) is applied. The TS12001 has a latch enable pin ( ET ) that
detection. However, ET must not be left open. VIN for normal operation or to VSS for ET enable. unconnected and should be tied to VSS. combinations for detecting various VIN voltages. Table 1. Resistor Combinations for Several V IN 0.75µA of current when VCORE = 1.8V.
Touchstone Semiconductor, Inc. Page 8
630 Alder Drive, Milpitas, CA 95035 TS12001DS r1p0
+1 (408) 215 - 1220 ▪ www.touchstonesemi.com RTFDS PACKAGE OUTLINE DRAWING Information furnished by Touchstone S emiconductor is believed to be accurate and reliable. However, Touchstone Semiconductor does not assume any responsibility for its use nor for any infringements of patents or other rights of third parties that may result f rom its use, and all information provided by Touchstone Semiconductor and its suppliers is provided on an AS IS basis, WITHOUT WARRANTY OF ANY KIND . Touchstone Semiconductor reserves the right to change product specifications and product descriptions at any time without any advance notice. No license is granted by implication or otherwise under any patent or patent rights of Touchstone Semiconductor. Touchstone Semiconductor assumes no liability for applications assistance or customer product design. Customers are responsible for thei r products and applications using Touchstone Semiconductor components. To minimize the risk associated with customer products and applicatio ns, customers should provide adequate design and operating safeguards. Trademarks and registered trademarks are the property of their respective owners. 0.200±0.050 BOTTOM VIEW 2.000±0.050 2.000±0.050 TOP VIEW 10L STSLP (2x2mm) Pin 1 DOT BY MARKING PIN #1 IDENTIFICATION
0.152 Ref
A 0.000-0.050 NOTE!
- All dimensions in mm.
- This part is compliant with JEDEC MO-229 spec A MAX. NOM. MIN. 0.600 0.550 0.500 SIDE VIEW 0.900±0.050 Exp.DAP 1.400±0.050 Exp.DAP 0.300±0.050
0.400 Bsc
10-Pin TDFN22 Package Outline Drawing (N.B., Drawings are not to scale)