SBVS149B September   2010  – January 2016 TPS386000-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Switching Characteristics
    8. 6.8 Typical Characteristics
  7. 7 Parametric Measurement information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Voltage Monitoring
      2. 8.3.2 RESET Output
      3. 8.3.3 Manual Reset
      4. 8.3.4 Watchdog Timer
      5. 8.3.5 Immunity to SENSEn Voltage Transients
    4. 8.4 Device Functional Modes
      1. 8.4.1 Overview
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 SENSE Input
      2. 9.1.2 Window Comparator
      3. 9.1.3 Sensing Voltage Less Than 0.4 V
      4. 9.1.4 Reset Delay Time
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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6 Specifications

6.1 Absolute Maximum Ratings

Over operating junction temperature range (unless otherwise noted) (1)
MIN MAX UNIT
Voltage Input, VDD –0.3 7 V
CT pin, VCT1, VCT2, VCT3, VCT4 –0.3 VDD + 0.3
VRESET1, VRESET2, VRESET3, VRESET4, VMR, VSENSE1, VSENSE2, VSENSE3, VSENSE4L, VSENSE4H, VWDI, VWDO –0.3 7
Current RESETn , RESETn, WDO, WDO, VREF pin current 5 mA
Power Dissipation Continuous total See Thermal Information Table.
Temperature Operating virtual junction, TJ (2) –40 150 °C
Operating ambient, TA –40 125
Storage, Tstg –65 150
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) As a result of the low dissipated power in this device, it is assumed that TJ = TA.

6.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human-body model (HBM), per AEC Q100-002(1) ±2000 V
Charged-device model (CDM), per AEC Q100-011 All pins ±500
Corner pins (1, 5, 6, 10, 11, 15, 16) ±750
(1) AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification.

6.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
VDD Supply voltage 1.8 6.5 V
Reset delay programming CT1, CT2, CT3, CT4 0 VDD V
Manual reset input MR 0 VDD V
Watchdog timer trigger input WDI 0 VDD V
TA Operating free-air temperature –40 125 °C
TJ Operating junction temperature –40 150 °C

6.4 Thermal Information

THERMAL METRIC(1) TPS386000-Q1 UNIT
RGP (VQFN)
20 PINS
RθJA Junction-to-ambient thermal resistance 50.8 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 1.5 °C/W
RθJB Junction-to-board thermal resistance 21.0 °C/W
ψJT Junction-to-top characterization parameter 42.8 °C/W
ψJB Junction-to-board characterization parameter 8.8 °C/W
RθJC(bot) Junction-to-case (bottom) thermal resistance 21.2 °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953.

6.5 Electrical Characteristics

Over the operating temperature range of TJ = –40°C to +125°C, 1.8 V < VDD < 6.5 V, RRESETn (n = 1, 2, 3, 4) = 100 kΩ to VDD, CRESETn (n = 1, 2, 3, 4L, 4H) = 50 pF to GND, RWDO = 100 kΩ to VDD, CWDO = 50 pF to GND, VMR = 100 kΩ to VDD, WDI = GND, and CTn (n = 1, 2, 3, 4) = open, unless otherwise noted. Typical values are at TJ = 25°C.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VDD Input supply range 1.8 6.5 V
IDD Supply current (current into VDD pin) VDD = 3.3 V, RESETn or RESETn not asserted, WDI toggling(1), no output load, and VREF open 11 19 μA
VDD = 6.5 V, RESETn or RESETn not asserted, WDI toggling(1), no output load, and VREF open 13 22
Power-up reset voltage(2)(3) VOL (max) = 0.2 V, IRESETn = 15 μA 0.9 V
VIT– Negative-going input threshold voltage SENSE1, SENSE2, SENSE3, SENSE4L 396 400 404 mV
VIT+ Positive-going input threshold voltage SENSE4H 396 400 404 mV
VHYS– Hysteresis (positive-going) on VIT– SENSE1, SENSE2, SENSE3, SENSE4L 3.5 10 mV
VHYS+ Hysteresis (negative-going) on VIT+ SENSE4H 3.5 10 mV
ISENSE Input current at SENSEm pin VSENSEm = 0.42 V –25 ±1 +25 nA
ICT CTn pin charging current CT1 CCT1 > 220 pF, VCT1 = 0.5 V(4) 245 300 355 nA
CT2, CT3, CT4 CCTn > 220 pF, VCTn = 0.5 V(4) 235 300 365
VTH(CTn) CTn pin threshold CCTn > 220 pF 1.18 1.238 1.299 V
VIL MR and WDI logic low input 0 0.3 × VDD V
VIH MR and WDI logic high input 0.7 × VDD V
VOL Low-level RESETn or RESETn output voltage IOL = 1 mA 0.4 V
SENSEn = 0V, 1.3 V < VDD < 1.8 V,
IOL = 0.4 mA(2) 		0.3
Low-level WDO output voltage IOL = 1 mA 0.4
ILKG RESETn, RESETn, WDO, and WDO leakage current VRESETn = 6.5 V, RESETn, RESETn, WDO, and WDO are logic high –300 300 nA
VREF Reference voltage output 1 μA < IVREF < 0.2 mA (source only, no sink) 1.18 1.20 1.22 V
CIN Input pin capacitance CTn: 0 V to VDD, other pins: 0 V to 6.5 V 5 pF
(1) Toggling WDI for a period less than tWDT negatively affects IDD.
(2) These specifications are beyond the recommended VDD range, and only define RESETn or RESETn output performance during VDD ramp up.
(3) The lowest supply voltage (VDD) at which RESETn or RESETn becomes active; tRISE(VDD) ≥ 15 μs/V.
(4) CTn (where n = 1, 2, 3, or 4) are constant current charging sources working from a range of 0 V to VTH(CTn), and the device is tested at VCTn = 0.5 V. For ICT performance between 0V and VTH(CTn), see Figure 26.

6.6 Timing Requirements

Over operating temperature range of TJ = –40°C to 125°C, 1.8 V < VDD < 6.5 V, RRESETn (n = 1, 2, 3, 4) = 100 kΩ to VDD, CRESETn (n = 1, 2, 3, 4L, 4H) = 50 pF to GND, RWDO = 100 kΩ to VDD, CWDO = 50 pF to GND, VMR = 100 kΩ to VDD, WDI = GND, and CTn (n = 1, 2, 3, 4) = open, unless otherwise noted. Nominal values are at TJ = 25°C.
MIN NOM MAX UNIT
tW Input pulse width to SENSEm and MR pins SENSEm: 1.05 VIT– → 0.95 VIT– or
0.95 VIT+ → 1.05 VIT+		 4 μs
MR: 0.7 VDD → 0.3 VDD 1 ns

6.7 Switching Characteristics

Over operating temperature range of TJ = –40°C to 125°C, 1.8 V < VDD < 6.5 V, RRESETn (n = 1, 2, 3, 4) = 100 kΩ to VDD, CRESETn (n = 1, 2, 3, 4L, 4H) = 50 pF to GND, RWDO = 100 kΩ to VDD, CWDO = 50 pF to GND, VMR = 100 kΩ to VDD, WDI = GND, and CTn (n = 1, 2, 3, 4) = open, unless otherwise noted. Typical values are at TJ = 25°C.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
tD RESETn or RESETn delay time CTn = Open 14 20 24 ms
CTn = VDD 225 300 375
tWDT Watchdog timer time-out period(1) 450 600 750 ms
(1) Start from RESET1 or RESET1 release or last WDI transition.
TPS386000-Q1 tim_svs-1_bvs105.gif
NOTE: The TPS386000-Q1 is shown here using RESETn.
Figure 1. SVS-1 Timing Diagram
TPS386000-Q1 tim_svs-2_bvs105.gif
NOTE: The TPS386000-Q1 is shown here using RESETn.
Figure 2. SVS-2 Timing Diagram
TPS386000-Q1 tim_svs-3_bvs105.gif
NOTE: The TPS386000-Q1 is shown here using RESETn.
Figure 3. SVS-3 Timing Diagram
TPS386000-Q1 tim_svs-4_bvs149.gif
NOTE: The TPS386000-Q1 is shown here using RESETn.
Figure 4. SVS-4 Timing Diagram
TPS386000-Q1 tim_wdt_bvs105.gif
NOTE: The TPS386000-Q1 is shown here using RESETn and WDO.
Figure 5. WDT Timing Diagram

6.8 Typical Characteristics

At TA = +25°C, and VDD = 3.3 V, unless otherwise noted.
TPS386000-Q1 tc_icc-vcc_bvs105.gif
UVLO released at approximately 1.5 V.
Figure 6. TPS386000-Q1 Supply Current vs Supply Voltage
TPS386000-Q1 tc_reset-tmp_open_bvs105.gif
Figure 8. TPS386000-Q1 RESETn Timeout Period vs Temperature (CTn = Open)
TPS386000-Q1 tc_reset-tmp_01uf_bvs105.gif
These curves contain variance of capacitor values
Figure 10. TPS386000-Q1 RESETn Timeout Period vs Temperature (CTn = 0.1 µF)
TPS386000-Q1 tc_sense-overdrive_bvs105.gif
See Figure 5 for the measurement technique.
Figure 12. TPS386000-Q1 SENSEn Minimum Pulse Width vs SENSEn Threshold Overdrive Voltage
TPS386000-Q1 tc_sense2-tmp_slvscj4.gif
2 mV » 0.5%
Figure 14. TPS386000-Q1 SENSE2 Threshold Voltage vs Temperature
TPS386000-Q1 tc_sense4l-tmp_slvscj4.gif
2 mV » 0.5%
Figure 16. TPS386000-Q1 SENSE4L Threshold Voltage vs Temperature
TPS386000-Q1 tc_vout_low-iout_bvs105.gif
All RESETn and WDO
Figure 18. Output Voltage Low vs Output Current
TPS386000-Q1 tc_vout_high-iout_bvs105.gif
All RESETn and WDO
Figure 20. Output Voltage High vs Output Current
TPS386000-Q1 tc_vref-load_18v_bvs105.gif
Y-axis (1.188 V to 1.2 V) is 1% of 1.2 V
Figure 22. TPS386000-Q1 VREF Output Load Regulation
(VDD = 1.8 V)
TPS386000-Q1 tc_vref-load_65v_bvs105.gif
Y-axis (1.195 V to 1.207 V) is 1% of 1.2 V
Figure 24. TPS386000-Q1 VREF Output Load Regulation
(VDD = 6.5 V)
TPS386000-Q1 tc_pin_charge-tmp_bvs105.gif
Minimum and maximum values of the Y-axis are ±10% of 0.3 mA
Figure 26. TPS386000-Q1 CT1 to CT4 Pin Charging Current vs Temperature Over CT Pin Voltage
TPS386000-Q1 tc_reset-ct_bvs105.gif
Figure 7. TPS386000-Q1 RESETn Timeout Period vs CTn
TPS386000-Q1 tc_reset-tmp_vcc_bvs105.gif
Figure 9. TPS386000-Q1 RESETn Timeout Period vs Temperature (CTn = VDD)
TPS386000-Q1 tc_wdo-tmp_bvs105.gif
Figure 11. TPS386000-Q1 WDO Timeout Period vs Temperature
TPS386000-Q1 tc_sense1-tmp_slvscj4.gif
2 mV » 0.5%
Figure 13. TPS386000-Q1 SENSE1 Threshold Voltage vs Temperature
TPS386000-Q1 tc_sense3-tmp_slvscj4.gif
2 mV » 0.5%
Figure 15. TPS386000-Q1 SENSE3 Threshold Voltage vs Temperature
TPS386000-Q1 tc_sense4h-tmp_slvscj4.gif
2 mV » 0.5%
Figure 17. TPS386000-Q1 SENSE4H Threshold Voltage vs Temperature
TPS386000-Q1 tc_vout_low-tmp_bvs105.gif
All RESETn and WDO
Figure 19. Output Voltage Low at 1 mA vs Temperature
TPS386000-Q1 tc_vout_high-tmp_bvs105.gif
All RESETn, RESETn, WDO, and WDO
Figure 21. Output Voltage High at 1 mA vs Temperature
TPS386000-Q1 tc_vref-load_33v_bvs105.gif
Y-axis (1.188 V to 1.2 V) is 1% of 1.2 V
Figure 23. TPS386000-Q1 VREF Output Load Regulation
(VDD = 3.3 V)
TPS386000-Q1 tc_vref-tmp_bvs105.gif
Y-axis (1.195 V to 1.207 V) is 1% of 1.2 V
Figure 25. TPS386000-Q1 VREF at 0 µA vs Temperature