TPS3807A30DCKT

TPS3807 www.ti.com SBVS061B – AUGUST 2005 – REVISED DECEMBER 2006 Low Quiescent Current, Dual-Channel Supervisory Circuit FEATURES • • • • • • • • DESCRIPTION Two Supply Monitors in One Package One Monitor with Fixed High-Accuracy Thresholds for System Supply Monitoring Second Monitor with Variable Threshold and 30mV Hysteresis to Provide Failsafe Very Low Quiescent Current: 3.5µA typ High Threshold Accuracy: 1% max (0°C to +85°C) Open-Drain Reset Outputs Temperature Range: –40°C to +85°C Ultra-Small SC70-5 Package APPLICATIONS • • • • • • DSP, Microcontroller, or Microprocessor Applications Requiring User-Selected Delay Times Notebook/Desktop Computers PDAs and SmartPhones Other Hand-Held Products Portable, Battery-Powered Products FPGA/ASIC Applications The TPS3807 family microprocessor supervisory circuits monitor system voltages as low as 1.225V. These devices assert an open-drain RSTVDD signal when the VDD voltage drops below a preset threshold. The RSTVDD output remains asserted until the VDD voltage returns above its threshold. The device also provides an additional RSTSENSE output for a SENSE input with adjustable thresholds and hysteresis. The TPS3807 uses a precision reference to achieve 1% threshold accuracy. The TPS3807 has a very low typical quiescent current of 3.5µA, so it is well-suited to battery-powered applications. It is available in a small SC70-5 package, which is half the size of a SOT-23 package, and is fully specified over a temperature range of –40°C to +85°C. System Supply VDD Supply 2 RSTVDD DCK Package SC70−5 (Top View) Battery Enable TPS3807 Battery SENSE RSTSENSE GND Battery Good RSTSENSE 1 GND 2 RSTVDD 3 5 SENSE 4 VDD TPS3807 Typical Application Circuit Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2005–2006, Texas Instruments Incorporated TPS3807 www.ti.com SBVS061B – AUGUST 2005 – REVISED DECEMBER 2006 This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. ORDERING INFORMATION (1) (1) PRODUCT VDD NEGATIVE THRESHOLD VOLTAGE (VDD IT–) (2) VDD POSITIVE THRESHOLD VOLTAGE (VDD IT+) (2) SENSE THRESHOLD VOLTAGE (VSENSE IT) TPS3807A30DCKT (3) 3.00V 3.58V 1.225V TPS3807A30DCKR (4) 3.00V 3.58V 1.225V For the most current package and ordering information, see the Package Option Addendum at the end of this document or see the TI web site at www.ti.com. Other voltage options are available upon request; minimum order quantities may apply. DCKT passive indicates tape and reel containing 250 parts. The DCKR passive indicates tape and reel containing 3000 parts. (2) (3) (4) ABSOLUTE MAXIMUM RATINGS Over operating free-air temperature range, unless otherwise noted. (1) SENSE pin voltage (2) –0.3V to +5V MR –0.3V to VDD +0.3V RESET –0.3V to VDD +0.3V All other pins (2) –0.3V to +7V Maximum output current ±5mA Input clamp current, IIK (VSENSE < 0 or VSENSE > VDD) ±10mA Output clamp current, IOK (VO < 0 or VO > VDD) ±10mA Continuous total power dissipation See Dissipation Ratings table Junction temperature, TC –40°C to +125°C Storage temperature range, TSTG –65°C to +150°C Soldering temperature +260°C ESD rating: Human body model (HBM) 2kV Charged device model (CDM) (1) (2) 500V 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 conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltage values are with respect to GND. For reliable operation, the device must not be continuously operated at 7V for more than t = 1000 hours. DISSIPATION RATINGS PACKAGE θJA DERATING FACTOR ABOVE TA = +25°C TA < +25°C POWER RATING TA = +70°C POWER RATING TA = +80°C POWER RATING DCK +246°C/W 2.6mW/°C 406mW 223mW 167mW RECOMMENDED OPERATING CONDITIONS MIN Supply voltage, VDD Input voltage, VSENSE 0V ≤ VDD ≤ 4.2V UNIT 1.8 6.5 V 0 VDD + 0.3 VDD ≥ 4.2V Operating free-air temperature range, TA 2 MAX 4.5 –40°C Submit Documentation Feedback +85°C V °C TPS3807 www.ti.com SBVS061B – AUGUST 2005 – REVISED DECEMBER 2006 ELECTRICAL CHARACTERISTICS Over recommended operating temperature range, unless otherwise noted. PARAMETER VDD TEST CONDITIONS Input supply range IDD Negative-going input threshold voltage (2) VDD IT+ Positive-going input threshold voltage (2) IT– µA VDD = 6.5V RSTVDD, RSTSENSE = open 4.5 7.5 µA Negative-going input threshold voltage VHYS SENSE input hysteresis ISENSE Input current CI Input capacitance IOH High-level output current (1) (2) V 6.5 VDD = 1.3V, IOL = 0.4mA 0.3 VDD = 1.8V, IOL = 1mA 0.4 VDD = 3.3V, IOL = 2mA 0.4 VRSTVDD (max) = 0.2V, IOL = 30µA, +25°C IT– UNIT 6.5 3.5 Power-up reset (1) VDD MAX VDD = 3.3V RSTVDD, RSTSENSE = open Low-level output voltage VSENSE TYP 1.8 Supply current VOL MIN 0.9 V V 2.963 3.000 3.037 V V 3.530 3.575 3.620 0°C to +85°C 1.213 1.225 1.237 –40°C to +85°C 1.210 1.225 1.240 30 –25 VI = 0V to VDD mV +25 nA 300 nA 1 VRSTVDD, RSTSENSE = 6.5V V pF The lowest supply voltage at which RSTVDD (VRSTVDD (max) = 0.2V, IOL = 30µA) becomes active. tr, VDD ≥ 15µs/V. To ensure best stability of the threshold voltage, a bypass capacitor (ceramic, 0.1µF) should be placed near the VDD pin. TIMING REQUIREMENTS At TA = –40°C to +85°C, RL = 1MΩ, and CL = 50pF, unless otherwise noted. PARAMETER tW Pulse width TEST CONDITIONS MIN VIH = 1.05VIT, VIL = 0.95VIT 10 TYP MAX UNIT µs SWITCHING CHARACTERISTICS At TA = –40°C to +85°C, RL = 1MΩ, and CL = 50pF, unless otherwise noted. PARAMETER tPHL Propagation delay time, high-to-low-level output TEST CONDITIONS VDD to RSTVDD SENSE to RSTSENSE VIH = 1.05VIT, VIL = 0.95VIT Submit Documentation Feedback MIN TYP 20 MAX UNIT µs 3 TPS3807 www.ti.com SBVS061B – AUGUST 2005 – REVISED DECEMBER 2006 FUNCTIONAL BLOCK DIAGRAM VDD TPS3807 RSTVDD 1.225V Reference RSTSENSE SENSE GND Table 1. PIN DESCRIPTIONS NAME PIN NO. I/O DESCRIPTION RSTSENSE 1 O RSTSENSE is an open-drain output that is driven to a low-impedance state when the SENSE input is lower than the threshold voltage VSENSE IT–. RSTSENSE will remain low until SENSE is above VSENSE IT+. A pull-up resistor from 10kΩ to 1MΩ should be used on this pin, and allows the reset pin to attain voltages higher than VDD. GND 2 I Ground RSTVDD 3 O RSTVDD is an open-drain output that is driven to a low-impedance state when the VDD input is lower than the threshold voltage VDD IT–. RSTVDD will remain low until VDD is above VDD IT+. A pull-up resistor from 10kΩ to 1MΩ should be used on this pin, and allows the reset pin to attain voltages higher than VDD. VDD 4 I Supply voltage for the device and sense input for fixed-threshold RSTVDD outputs. A 0.1µF ceramic capacitor should be placed close to this pin for best VIT stability. SENSE 5 I Sense input for the adjustable-threshold RSTSENSE outputs. A resistor divider from the sense voltage can be attached to this pin to set the thresholds to the desired voltages. A 0.1µF ceramic capacitor should be placed close to this pin for best VIT stability. TIMING DIAGRAM VDD VGOOD VLOW VON VOFF 0.8V 0V RSTSENSE tD = Reset Delay = Undefined State RSTVDD Time Figure 1. TPS3807 Timing Diagram Showing Reset Timing (SENSE resistor divider set to 3.6V) 4 Submit Documentation Feedback TPS3807 www.ti.com SBVS061B – AUGUST 2005 – REVISED DECEMBER 2006 TYPICAL CHARACTERISTICS At TA = +25°C, VDD = 3.3V, RLRESET = 1MΩ, and CLRESET = 50pF, unless otherwise noted. SUPPLY CURRENT vs SUPPLY VOLTAGE LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT 6 1.60 SENSE = GND RSTSENSE = Open VOL − Low-Level Output Voltage − V IDD − Supply Current − µA 5 4 3 +85°C +25°C 2 0°C −40°C 1 VDD = 1.8V VSENSE = Low 1.40 1.20 +85°C 1.00 +25°C 0.80 0°C 0.60 −40°C 0.40 0.20 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 0 6 2 3 4 Figure 2. Figure 3. LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT 5 1.60 VDD = 1.8V VSENSE = Low (Expanded View) 0.40 +85°C 0.35 +25°C 0.30 0°C 0.25 VDD = 3.3V VSENSE = Low 1.40 VOL − Low-Level Output Voltage − V 0.45 VOL − Low-Level Output Voltage − V 1 IOL − Low-Level Output Current − mA 0.50 −40°C 0.20 0.15 0.10 1.20 +85°C 1.00 +25°C 0.80 0°C 0.60 −40°C 0.40 0.20 0.05 0 0 VDD − Supply Voltage − V 0 0.5 1 1.5 2 2.5 3 0 0 IOL − Low-Level Output Current − mA Figure 4. 1 2 3 4 5 IOL − Low-Level Output Current − mA Figure 5. Submit Documentation Feedback 5 TPS3807 www.ti.com SBVS061B – AUGUST 2005 – REVISED DECEMBER 2006 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VDD = 3.3V, RLRESET = 1MΩ, and CLRESET = 50pF, unless otherwise noted. LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT 0.50 1.60 VDD = 3.3V VSENSE = Low (Expanded View) 0.40 +85°C 0.35 +25°C 0.30 0°C 0.25 −40°C 0.20 0.15 0.10 1.20 +85°C 1.00 +25°C 0.80 0°C 0.60 −40°C 0.40 0.20 0.05 0 VDD = 6.5V VSENSE = Low 1.40 VOL − Low-Level Output Voltage − V VOL − Low-Level Output Voltage − V 0.45 0 0.5 1 1.5 2 2.5 0 3 0 1 IOL − Low-Level Output Current − mA 5 Figure 7. LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT NORMALIZED INPUT THRESHOLD VOLTAGE vs FREE-AIR TEMPERATURE 1.005 VIT − Normalized Input Threshold Voltage − VIT−(TA)/VIT−(25°C) VOL − Low-Level Output Voltage − V 4 Figure 6. VDD = 6.5V VSENSE = Low (Expanded View) 0.45 0.40 +85°C 0.35 +25°C 0.30 0°C 0.25 −40°C 0.20 0.15 0.10 1.004 1.003 1.002 1.001 1 0.999 0.998 0.997 0.996 0.05 0 0.5 1 1.5 2 2.5 3 0.995 −40 IOL − Low-Level Output Current − mA Figure 8. 6 3 IOL − Low-Level Output Current − mA 0.50 0 2 −20 0 20 60 TA − Free-Air Temperature at VDD − °C Figure 9. Submit Documentation Feedback 40 80 TPS3807 www.ti.com SBVS061B – AUGUST 2005 – REVISED DECEMBER 2006 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VDD = 3.3V, RLRESET = 1MΩ, and CLRESET = 50pF, unless otherwise noted. MINIMUM PULSE DURATION AT VDD vs VDD THRESHOLD OVERDRIVE VOLTAGE MINIMUM PULSE DURATION AT SENSE vs SENSE THRESHOLD OVERDRIVE VOLTAGE 10 tW − Minimum Pulse Duration at SENSE − µs tW − Minimum Pulse Duration at VDD − µS 10 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0 VDD − Threshold Overdrive Voltage − V Figure 10. 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 LSENSE − Threshold Overdrive Voltage − V Figure 11. Submit Documentation Feedback 7 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) TPS3807A30DCKR ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 85 BOM TPS3807A30DCKT ACTIVE SC70 DCK 5 250 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 85 BOM (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of