ZHCSCN4F January   2014  – July 2017 TPS22968

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 修订历史记录
  5. 5 Device Comparison
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics (VBIAS = 5 V)
    6. 7.6 Electrical Characteristics (VBIAS = 2.5 V)
    7. 7.7 Switching Characteristics
    8. 7.8 Typical DC Characteristics
    9. 7.9 Typical AC Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 ON and OFF Control
      2. 9.3.2 Input Capacitor (Optional)
      3. 9.3.3 Output Capacitor (Optional)
      4. 9.3.4 QOD (Optional)
      5. 9.3.5 VIN and VBIAS Voltage Range
      6. 9.3.6 Adjustable Rise Time
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Parallel Configuration
      2. 10.1.2 Standby Power Reduction
      3. 10.1.3 Power Supply Sequencing Without a GPIO Input
      4. 10.1.4 Reverse Current Blocking
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 VIN to VOUT Voltage Drop
        2. 10.2.2.2 Inrush Current
        3. 10.2.2.3 Thermal Considerations
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13器件和文档支持
    1. 13.1 器件支持
      1. 13.1.1 开发支持
    2. 13.2 文档支持
      1. 13.2.1 相关文档
    3. 13.3 相关链接
    4. 13.4 接收文档更新通知
    5. 13.5 社区资源
    6. 13.6 商标
    7. 13.7 静电放电警告
    8. 13.8 Glossary
  14. 14机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

7 Specifications

7.1 Absolute Maximum Ratings

Over operating free-air temperature (unless otherwise noted)(1)
MIN MAX UNIT (2)
VIN1,2 Input voltage –0.3 6 V
VBIAS Bias voltage –0.3 6 V
VOUT1,2 Output voltage –0.3 6 V
VON1,2 ON voltage –0.3 6 V
IMAX Maximum continuous switch current per channel, TA = 30 °C 4 A
IPLS Maximum pulsed switch current, pulse < 300 µs, 2% duty cycle 6 A
TJ Maximum junction temperature 125 °C
Tstg Storage temperature –65 150 °C
(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) All voltage values are with respect to network ground terminal.

7.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001 (1) ±2000 V
Charged-device model (CDM), per JEDEC specification JESD22-C101 (2) ±1000
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. Manufacturing with less than 500-V HBM is possible with the necessary precautions.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. Manufacturing with less than 250-V CDM is possible with the necessary precautions.

7.3 Recommended Operating Conditions

MIN MAX UNIT
VIN1,2 Input voltage 0.8 VBIAS V
VBIAS Bias voltage 2.5 5.5 V
VON1,2 ON voltage 0 5.5 V
VOUT1,2 Output voltage VIN V
VIH, ON1,2 High-level input voltage, ON1,2 VBIAS = 2.5 V to 5.5 V 1.2 5.5 V
VIL, ON1,2 Low-level input voltage, ON1,2 VBIAS = 2.5 V to 5.5 V 0 0.5 V
CIN1,2 Input capacitor 1(1) µF
TA Operating free-air temperature (2) –40 105 °C
(1) See the Application Information section.
(2) In applications where high power dissipation and/or poor package thermal resistance is present, the maximum ambient temperature may have to be derated. Maximum ambient temperature [TA(max)] is dependent on the maximum operating junction temperature [TJ(max)], the maximum power dissipation of the device in the application [PD(max)], and the junction-to-ambient thermal resistance of the part/package in the application (RθJA), as given by the following equation: TA(max) = TJ(max) – (RθJA × PD(max)).

7.4 Thermal Information

THERMAL METRIC (1) (2) TPS22968 UNIT
DPU (WSON)
14 PINS
RθJA Junction-to-ambient thermal resistance 62.5 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 70.2 °C/W
RθJB Junction-to-board thermal resistance 23.2 °C/W
ψJT Junction-to-top characterization parameter 2.5 °C/W
ψJB Junction-to-board characterization parameter 23.2 °C/W
RθJC(bot) Junction-to-case (bottom) thermal resistance 9 °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report.
(2) For thermal estimates of this device based on PCB copper area, see the TI PCB Thermal Calculator.

7.5 Electrical Characteristics (VBIAS = 5 V)

Unless otherwise noted, the specification in the following table applies over the operating ambient temperature
–40°C ≤ TA ≤ +105°C (full) and VBIAS = 5 V. Typical values are for TA = 25°C (unless otherwise noted).
PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT
POWER SUPPLIES AND CURRENTS
IQ, VBIAS VBIAS quiescent current (both channels) IOUT1 = IOUT2 = 0, VIN1,2 = VON1,2 = VBIAS = 5 V –40°C to +105°C 55 70 µA
VBIAS quiescent current (single channel) IOUT1 = IOUT2 = 0, VON2 = 0 V, VIN1,2 = VON1 = VBIAS = 5 V –40°C to +105°C 55 68 µA
ISD, VBIAS VBIAS shutdown current VON1,2 = 0 V, VOUT1,2 = 0 V –40°C to +105°C 1 2 µA
ISD, VIN1,2 VIN1,2 shutdown current (per channel) VON1,2 = 0 V, VOUT1,2 = 0 V VIN1,2 = 5 V –40°C to +85°C 0.5 8 µA
–40°C to +105°C 10
VIN1,2 = 3.3 V –40°C to +85°C 0.1 3
–40°C to +105°C 4
VIN1,2 = 1.8 V –40°C to +85°C 0.07 2
–40°C to +105°C 3
VIN1,2 = 1.2 V –40°C to +85°C 0.05 1
–40°C to +105°C 2
VIN1,2 = 0.8 V –40°C to +85°C 0.04 1
–40°C to +105°C 2
ION1,2 ON pin input leakage current VON = 5.5 V –40°C to +105°C 0.1 µA
RESISTANCE CHARACTERISTICS
RON On-state resistance IOUT = –200 mA, VBIAS = 5 V
VON1,2 = 5 V		 VIN = 5 V 25°C 27 36 mΩ
–40°C to +85°C 40
–40°C to +105°C 42
VIN = 3.3 V 25°C 25 34 mΩ
–40°C to +85°C 38
–40°C to +105°C 40
VIN = 1.8 V 25°C 25 34 mΩ
–40°C to +85°C 38
–40°C to +105°C 40
VIN = 1.5 V 25°C 25 34 mΩ
–40°C to +85°C 38
–40°C to +105°C 40
VIN = 1.2 V 25°C 25 34 mΩ
–40°C to +85°C 38
–40°C to +105°C 40
VIN = 0.8 V 25°C 25 34 mΩ
–40°C to +85°C 38
–40°C to +105°C 40
RPD (1) Output pulldown resistance VIN = 5 V, VON = 0 V, IOUT = 10 mA –40°C to +105°C 270 320 Ω
(1) TPS22968 only.

7.6 Electrical Characteristics (VBIAS = 2.5 V)

Unless otherwise noted, the specification in the following table applies over the operating ambient temperature
–40 °C ≤ TA ≤ +105 °C (full) and VBIAS = 2.5 V. Typical values are for TA = 25°C (unless otherwise noted).
PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT
POWER SUPPLIES AND CURRENTS
IQ, VBIAS VBIAS quiescent current (both channels) IOUT1 = IOUT2 = 0, VIN1,2 = VON1,2 = VBIAS = 2.5 V –40°C to +105°C 18 27 µA
VBIAS quiescent current (single channel) IOUT1 = IOUT2 = 0, VON2 = 0 V, VIN1,2 = VON1 = VBIAS = 2.5 V –40°C to +105°C 18 27 µA
ISD, VBIAS VBIAS shutdown current VON1,2 = 0 V, VOUT1,2 = 0 V –40°C to +105°C 0.5 2 µA
ISD, VIN1,2 VIN1,2 shutdown current (per channel) VON1,2 = 0 V, VOUT1,2 = 0 V VIN1,2 = 2.5 V –40°C to +85°C 0.1 2 µA
–40°C to +105°C 4
VIN1,2 = 1.8 V –40°C to +85°C 0.07 2
–40°C to +105°C 3
VIN1,2 = 1.2 V –40°C to +85°C 0.05 1
–40°C to +105°C 2
VIN1,2 = 0.8 V –40°C to +85°C 0.04 1
–40°C to +105°C 2
ION1,2 ON pin input leakage current VON = 5.5 V –40°C to +85°C 0.1 µA
RESISTANCE CHARACTERISTICS
RON On-state resistance IOUT = –200 mA, VBIAS = 2.5 V
VON1,2 = 5 V		 VIN = 2.5 V 25°C 30 39 mΩ
–40°C to +85°C 44
–40°C to +105°C 46
VIN = 1.8 V 25°C 28 36 mΩ
–40°C to +85°C 41
–40°C to +105°C 43
VIN = 1.5 V 25°C 28 36 mΩ
–40°C to +85°C 41
–40°C to +105°C 43
VIN = 1.2 V 25°C 27 36 mΩ
–40°C to +85°C 41
–40°C to +105°C 43
VIN = 0.8 V 25°C 26 35 mΩ
–40°C to +85°C 39
–40°C to +105°C 41
RPD (1) Output pulldown resistance VIN = 2.5 V, VON = 0 V, IOUT = 10 mA –40°C to +105°C 270 320 Ω
(1) TPS22968 only.

7.7 Switching Characteristics

PARAMETER TEST CONDITION MIN TYP MAX UNIT
VIN = VON = VBIAS = 5 V, TA = 25 °C (unless otherwise noted)
tON Turnon time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 1128 µs
tOFF Turnoff time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 5
tR VOUT rise time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 1387
tF VOUT fall time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 2
tD ON delay time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 455
VIN = 0.8 V, VON = VBIAS = 5 V, TA = 25 ºC (unless otherwise noted)
tON Turnon time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 508 µs
tOFF Turnoff time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 33
tR VOUT rise time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 273
tF VOUT fall time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 2
tD ON delay time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 377
VIN = 2.5 V, VON = 5 V, VBIAS = 2.5V, TA = 25 ºC (unless otherwise noted)
tON Turnon time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 1718 µs
tOFF Turnoff time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 7
tR VOUT rise time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 1701
tF VOUT fall time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 2
tD ON delay time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 859
VIN = 0.8 V, VON = 5 V, VBIAS = 2.5 V, TA = 25 ºC (unless otherwise noted)
tON Turnon time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 1117 µs
tOFF Turnoff time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 30
tR VOUT rise time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 651
tF VOUT fall time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 2
tD ON delay time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 775

7.8 Typical DC Characteristics

TPS22968 TPS22968N D051_SLVSCG3.gif
VIN1 = VIN2 = VBIAS VOUT = Open
VON1 = VON2 = 5 V
Figure 1. Bias Voltage vs Quiescent Current
(Both Channels)
TPS22968 TPS22968N D053_SLVSCG3.gif
VIN1 = VIN2 = VBIAS VOUT = 0 V
VON1 = VON2 = 0 V
Figure 3. Bias Voltage vs Shutdown Current
(Both Channels)
TPS22968 TPS22968N D055_SLVSCG3.gif
VBIAS = 2.5 V
IOUT = –200 mA
Figure 5. Temperature vs On-Resistance
TPS22968 TPS22968N D057_SLVSCG3.gif
VBIAS = 2.5 V
I OUT = –200 mA
Figure 7. Input Voltage vs On-Resistance
TPS22968 TPS22968N D059_SLVSCG3.gif
VBIAS = 5 V IOUT = 1 mA
VON = 0 V
Figure 9. Input Voltage vs Pulldown Resistance (TPS22968 Only)
(Single Channel)
TPS22968 TPS22968N D060_SLVSCG3.gif
VBIAS = 2.5 V
CT= 1 nF
Figure 11. Input Voltage vs Delay Time
TPS22968 TPS22968N D062_SLVSCG3.gif
VBIAS = 2.5 V
CT = 1 nF
Figure 13. Input Voltage vs Fall Time
TPS22968 TPS22968N D064_SLVSCG3.gif
VBIAS = 2.5 V
CT = 1 nF
Figure 15. Input Voltage vs Turnoff Time
TPS22968 TPS22968N D066_SLVSCG3.gif
VBIAS = 2.5 V
CT = 1 nF
Figure 17. Input Voltage vs Turnon Time
TPS22968 TPS22968N D068_SLVSCG3.gif
VBIAS = 2.5 V
CT = 1 nF
Figure 19. Input Voltage vs Rise Time
TPS22968 TPS22968N D052_SLVSCG3.gif
VIN1 = VIN2 = VBIAS VON2 = 0 V
VON1 = 5 V VOUT = Open
Figure 2. Bias Voltage vs Quiescent Current
(Single Channel)
TPS22968 TPS22968N D054_SLVSCG3.gif
VBIAS = 5 V VOUT = 0 V
VON1 = VON2 = 0 V
Figure 4. Input Voltage vs Shutdown Current
TPS22968 TPS22968N D056_SLVSCG3.gif
VBIAS = 5 V
IOUT = –200 mA
Figure 6. Temperature vs On-Resistance
TPS22968 TPS22968N D058_SLVSCG3.gif
VBIAS = 5 V
IOUT = –200 mA
Figure 8. Input Voltage vs On-Resistance
TPS22968 TPS22968N D025_SLVSCG3E.gif
TA = 25°C
VIN = 2 V
Figure 10. ON Voltage vs Output Voltage
TPS22968 TPS22968N D061_SLVSCG3.gif
VBIAS = 5 V
CT = 1 nF
Figure 12. Input Voltage vs Delay Time
TPS22968 TPS22968N D063_SLVSCG3.gif
VBIAS = 5 V
CT = 1 nF
Figure 14. Input Voltage vs Fall Time
TPS22968 TPS22968N D065_SLVSCG3.gif
VBIAS = 5 V
CT = 1 nF
Figure 16. Input Voltage vs Turnoff Time
TPS22968 TPS22968N D067_SLVSCG3.gif
VBIAS = 5 V
CT = 1 nF
Figure 18. Input Voltage vs Turnon Time
TPS22968 TPS22968N D069_SLVSCG3.gif
VBIAS = 5 V
CT = 1 nF
Figure 20. Input Voltage vs Rise Time

7.9 Typical AC Characteristics

TPS22968 TPS22968N SC003_lvscg3.png
VIN = 0.8 V VBIAS = 2.5 V CIN = 1 µF
RL = 10 Ω CL = 0.1 µF
Figure 21. Turnon Response Time
TPS22968 TPS22968N SC008_lvscg3.png
VIN = 2.5 V VBIAS = 2.5 V CIN = 1 µF
RL = 10 Ω CL = 0.1 µF
Figure 23. Turnon Response Time
TPS22968 TPS22968N SC005_lvscg3.png
VIN = 0.8 V VBIAS = 2.5 V CIN = 1 µF
RL = 10 Ω CL = 0.1 µF
Figure 25. TurnOff Response Time
TPS22968 TPS22968N SC001_lvscg3.png
VIN = 2.5 V VBIAS = 2.5 V CIN = 1 µF
RL = 10 Ω CL = 0.1 µF
Figure 27. Turnoff Response Time
TPS22968 TPS22968N SC006_lvscg3.png
VIN = 0.8 V VBIAS = 5 V CIN = 1 µF
RL = 10 Ω CL = 0.1 µF
Figure 22. Turnon Response Time
TPS22968 TPS22968N SC004_lvscg3.png
VIN = 5 V VBIAS = 5 V CIN = 1 µF
RL = 10 Ω CL = 0.1 µF
Figure 24. Turnon Response Time
TPS22968 TPS22968N SC007_lvscg3.png
VIN = 0.8 V VBIAS = 5 V CIN = 1 µF
RL = 10 Ω CL = 0.1 µF
Figure 26. Turnoff Response Time
TPS22968 TPS22968N SC002_lvscg3.png
VIN = 5 V VBIAS = 5 V CIN = 1 µF
RL = 10 Ω CL = 0.1 µF
Figure 28. Turnon Response Time