ZHCSDK9A March   2015  – April 2015 TPS22953 , TPS22954

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 简化电路原理图
  5. 5 修订历史记录
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
  8. 8 Specifications
    1. 8.1  Absolute Maximum Ratings
    2. 8.2  ESD Ratings
    3. 8.3  Recommended Operating Conditions
    4. 8.4  Thermal Information
    5. 8.5  Electrical Characteristics
    6. 8.6  Electrical Characteristics, VBIAS = 5 V
    7. 8.7  Electrical Characteristics, VBIAS = 3.3 V
    8. 8.8  Electrical Characteristics, VBIAS = 2.5 V
    9. 8.9  Switching Characteristics, CT = 1000 pF
    10. 8.10 Switching Characteristics, CT = 0 pF
    11. 8.11 Typical DC Characteristics
    12. 8.12 Typical Switching Characteristics
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 On/Off Control (EN pin)
      2. 9.3.2 Voltage Monitoring (SNS pin)
      3. 9.3.3 Power Good (PG Pin)
      4. 9.3.4 Supervisor Fault Detection and Automatic Restart
      5. 9.3.5 Manual Restart
      6. 9.3.6 Thermal Shutdown
      7. 9.3.7 Quick Output Discharge (QOD) (TPS22954 Only)
      8. 9.3.8 VIN and VBIAS Voltage Range
      9. 9.3.9 Adjustable Rise Time (CT pin)
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Input to OutputVoltage Drop
      2. 10.1.2 Thermal Considerations
      3. 10.1.3 Automatic Power Sequencing
      4. 10.1.4 Monitoring a Downstream Voltage
        1. 10.1.4.1 Monitoring the Input Voltage
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Inrush Current
      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 相关链接
    2. 13.2 商标
    3. 13.3 静电放电警告
    4. 13.4 术语表
  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

8 Specifications

8.1 Absolute Maximum Ratings

Over operating free-air temperature range (unless otherwise noted) (1)
MIN MAX UNIT
VIN Input voltage range –0.3 6 V
VBIAS Bias voltage range –0.3 6 V
VOUT Output voltage range –0.3 6 V
VEN, VSNS, VPG EN, SNS, and PG voltage range –0.3 6 V
IMAX Maximum Continuous Switch Current, TA = 70°C 5 A
IPLS Maximum Pulsed Switch Current, pulse <300µs, 2% duty cycle 7 A
TJ,MAX Maximum junction temperature Internally limited (2)
Tstg Storage temperature range –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) See TSD specification in Electrical Characteristics section and Thermal Considerations section.

8.2 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) ±750
(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.

8.3 Recommended Operating Conditions

Over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
VIN Input voltage range 0.7 VBIAS V
VBIAS Bias voltage range 2.5 5.7 V
VOUT Output voltage range 0 5.7 V
VEN, VSNS, VPG EN, SNS, and PG voltage range 0 5.7 V
TA(1) Operating free-air temperature range –40 105 °C
TJ Operating Junction Temperature –40 125 °C
(1) 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 (θJA), as given by the following equation: TA(max) = TJ(max) – (θJA × PD(max))

8.4 Thermal Information

THERMAL METRIC(1) TPS22953/54 UNIT
DQC-10 DSQ-10
RθJA Junction-to-ambient thermal resistance 65.2 63.5 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 73.9 81.6
RθJB Junction-to-board thermal resistance 25.5 34.1
ψJT Junction-to-top characterization parameter 2 1.9
ψJB Junction-to-board characterization parameter 25.4 34.5
RθJC(bot) Junction-to-case (bottom) thermal resistance 8.5 7.9
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

8.5 Electrical Characteristics

Unless otherwise noted, the specification in the following table applies over the operating ambient temperature –40 °C ≤ TA ≤ 105 °C and the recommended VBIAS voltage range of 2.5V to 5.7V. Typical values are for TA = 25°C.
PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT
VOLTAGE THRESHOLDS
VEN VIH, Rising threshold VIN = 0.7V to VBIAS -40°C to 105°C 650 700 750 mV
VIL, Falling threshold VIN = 0.7V to VBIAS -40°C to 105°C 560 600 640 mV
VSNS VIH, Rising threshold VIN = 0.7V to VBIAS -40°C to 105°C 465 515 565 mV
VIL, Falling threshold VIN = 0.7V to VBIAS -40°C to 105°C 410 455 500 mV
TIMINGS
tBLANK Blanking time for EN and SNS EN or SNS Rising -40°C to 105°C 100 µs
tDEGLITCH Deglitch time for EN and SNS EN or SNS Falling -40°C to 105°C 5 µs
tDIS Output discharge time (TPS22954 Only) CL = 100 µF -40°C to 105°C 10 ms
tRESTART Output Restart Time SNS Falling -40°C to 105°C 2 ms
THERMAL CHARACTERISTICS
TSD Thermal shutdown Junction Temperature Rising - 130 150 170 °C
TSDHYS Thermal shutdown hysteresis Junction Temperature Falling - 20 °C

8.6 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 and VBIAS = 5V. Typical values are for TA = 25°C.
PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT
POWER SUPPLIES AND CURRENTS
IQ, BIAS BIAS quiescent current IOUT = 0, VIN = 0.7V to VBIAS, VEN= 5V -40°C to 85°C 34 45 µA
-40°C to 105°C 50
ISD, BIAS BIAS shutdown current VOUT = 0V, VIN = 0.7V to VBIAS, VEN = 0V -40°C to 85°C 5 7 µA
-40°C to 105°C 8 µA
ISD, IN Input shutdown current VEN = 0V, VOUT = 0V VIN = 5.0V -40°C to 85°C 0.02 4 µA
-40°C to 105°C 13
VIN = 3.3V -40°C to 85°C 0.01 3
-40°C to 105°C 10
VIN = 1.8V -40°C to 85°C 0.01 3
-40°C to 105°C 10
VIN = 1.2V -40°C to 85°C 0.01 2
-40°C to 105°C 8
VIN = 0.7V -40°C to 85°C 0.01 2
-40°C to 105°C 8
IEN EN pin input leakage current VEN = 0V to 5.7V -40°C to 105°C 0.1 µA
ISNS SNS pin input leakage current VSNS ≤ VBIAS -40°C to 105°C 0.1 µA
RESISTANCE CHARACTERISTICS
RON ON-state resistance IOUT = –200 mA VIN = 5.0V 25°C 14 20 mΩ
-40°C to 85°C 23
-40°C to 105°C 24
VIN = 3.3V 25°C 14 20 mΩ
-40°C to 85°C 23
-40°C to 105°C 24
VIN = 1.8V 25°C 14 20 mΩ
-40°C to 85°C 23
-40°C to 105°C 24
VIN = 1.5V 25°C 14 20 mΩ
-40°C to 85°C 23
-40°C to 105°C 24
VIN = 1.2V 25°C 14 20 mΩ
-40°C to 85°C 23
-40°C to 105°C 24
VIN = 0.7V 25°C 14 20 mΩ
-40°C to 85°C 23
-40°C to 105°C 24
RPD Output pulldown resistance (TPS22954 Only) VIN = VOUT = VBIAS, VEN = 0 V 25°C 15 28 Ω
-40°C to 105°C 30 Ω

8.7 Electrical Characteristics, VBIAS = 3.3 V

Unless otherwise noted, the specification in the following table applies over the operating ambient temperature –40 °C ≤ TA ≤ 105 °C and VBIAS = 3.3V. Typical values are for TA = 25°C.
PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT
POWER SUPPLIES AND CURRENTS
IQ, BIAS BIAS quiescent current IOUT = 0, VIN = 0.7V to VBIAS, VEN= 5V -40°C to 85°C 19 35 µA
-40°C to 105°C 37
ISD, BIAS BIAS shutdown current VOUT = 0V, VIN = 0.7V to VBIAS, VEN = 0V -40°C to 85°C 4 6 µA
-40°C to 105°C 7 µA
ISD, IN Input shutdown current VEN = 0V, VOUT = 0V VIN = 3.3V -40°C to 85°C 0.01 3 µA
-40°C to 105°C 10
VIN = 1.8V -40°C to 85°C 0.01 3
-40°C to 105°C 10
VIN = 1.2V -40°C to 85°C 0.01 2
-40°C to 105°C 8
VIN = 0.7V -40°C to 85°C 0.01 2
-40°C to 105°C 8
IEN EN pin input leakage current VEN = 0V to 5.7V -40°C to 105°C 0.1 µA
ISNS SNS pin input leakage current VSNS = 0V to VBIAS -40°C to 105°C 0.1 µA
RESISTANCE CHARACTERISTICS
RON ON-state resistance IOUT = –200 mA VIN = 3.3V 25°C 15 21 mΩ
-40°C to 85°C 24
-40°C to 105°C 25
VIN = 1.8V 25°C 14 20 mΩ
-40°C to 85°C 23
-40°C to 105°C 24
VIN = 1.5V 25°C 14 20 mΩ
-40°C to 85°C 23
-40°C to 105°C 24
VIN = 1.2V 25°C 14 20 mΩ
-40°C to 85°C 23
-40°C to 105°C 24
VIN = 0.7V 25°C 14 20 mΩ
-40°C to 85°C 23
-40°C to 105°C 24
RPD Output pulldown resistance (TPS22954 Only) VIN = VOUT = VBIAS, VEN = 0 V 25°C 13 28 Ω
-40°C to 105°C 30 Ω

8.8 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 and VBIAS = 2.5V. Typical values are for TA = 25°C.
PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT
POWER SUPPLIES AND CURRENTS
IQ, BIAS BIAS quiescent current IOUT = 0, VIN = 0.7V to VBIAS, VEN= 5V -40°C to 85°C 16 25 µA
-40°C to 105°C 27
ISD, BIAS BIAS shutdown current VOUT = 0V, VIN = 0.7V to VBIAS, VEN = 0V -40°C to 85°C 4 5 µA
-40°C to 105°C 6 µA
ISD, IN Input shutdown current VEN = 0V, VOUT = 0V VIN = 2.5V -40°C to 85°C 0.01 3 µA
-40°C to 105°C 10
VIN = 1.8V -40°C to 85°C 0.01 3
-40°C to 105°C 10
VIN = 1.2V -40°C to 85°C 0.01 2
-40°C to 105°C 8
VIN = 0.7V -40°C to 85°C 0.01 2
-40°C to 105°C 8
IEN EN pin input leakage current VEN = 0V to 5.7V -40°C to 105°C 0.1 µA
ISNS SNS pin input leakage current VSNS = 0V to VBIAS -40°C to 105°C 0.1 µA
RESISTANCE CHARACTERISTICS
RON ON-state resistance IOUT = –200 mA VIN = 2.5V 25°C 16 23 mΩ
-40°C to 85°C 26
-40°C to 105°C 27
VIN = 1.8V 25°C 15 22 mΩ
-40°C to 85°C 25
-40°C to 105°C 26
VIN = 1.5V 25°C 15 22 mΩ
-40°C to 85°C 25
-40°C to 105°C 26
VIN = 1.2V 25°C 15 22 mΩ
-40°C to 85°C 24
-40°C to 105°C 25
VIN = 0.7V 25°C 14 21 mΩ
-40°C to 85°C 24
-40°C to 105°C 25
RPD Output pulldown resistance (TPS22954 Only) VIN = VOUT = VBIAS, VEN = 0 V 25°C 12 28 Ω
-40°C to 105°C 30 Ω

8.9 Switching Characteristics, CT = 1000 pF

Refer to the timing test circuit in Figure 1 (unless otherwise noted) for references to external components used for the test condition in the switching characteristics table. Switching characteristics shown below are only valid for the power-up sequence where VIN and VBIAS are already in steady state condition before the EN terminal is asserted high.
PARAMETER TEST CONDITION MIN TYP MAX UNIT
VIN = 5V, VEN = VBIAS = 5V, TA = 25°C
tON Turn-on time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 1265 µs
tOFF Turn-off time 6.0
tR VOUT rise time 1492
tF VOUT fall time 2.2
tD ON delay time 519
VIN = 2.5V, VEN = VBIAS = 5V, TA = 25°C
tON Turn-on time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 813 µs
tOFF Turn-off time 6.1
tR VOUT rise time 765
tF VOUT fall time 2.2
tD ON delay time 430
VIN = 0.7V, VEN = VBIAS = 5V, TA = 25°C
tON Turn-on time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 476 µs
tOFF Turn-off time 6.2
tR VOUT rise time 245
tF VOUT fall time 2.1
tD ON delay time 353
VIN = 2.5V, VEN = 5V, VBIAS = 2.5V, TA = 25°C
tON Turn-on time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 813 µs
tOFF Turn-off time 4.9
tR VOUT rise time 765
tF VOUT fall time 2.2
tD ON delay time 430
VIN = 0.7V, VEN = 5V, VBIAS = 2.5V, TA = 25°C
tON Turn-on time RL = 10 Ω, CL = 0.1 µF, CT = 1000 pF 476 µs
tOFF Turn-off time 6.1
tR VOUT rise time 245
tF VOUT fall time 2.1
tD ON delay time 353

8.10 Switching Characteristics, CT = 0 pF

Refer to the timing test circuit in Figure 1 (unless otherwise noted) for references to external components used for the test condition in the switching characteristics table. Switching characteristics shown below are only valid for the power-up sequence where VIN and VBIAS are already in steady state condition before the EN terminal is asserted high.
PARAMETER TEST CONDITION MIN TYP MAX UNIT
VIN = 5V, VEN = VBIAS = 5V, TA = 25°C
tON Turn-on time RL = 10 Ω, CL = 0.1 µF, CT = 0 pF 235 µs
tOFF Turn-off time 6.0
tR VOUT rise time 140
tF VOUT fall time 2.2
tD ON delay time 165
VIN = 2.5V, VEN = VBIAS = 5V, TA = 25°C
tON Turn-on time RL = 10 Ω, CL = 0.1 µF, CT = 0 pF 200 µs
tOFF Turn-off time 6
tR VOUT rise time 79
tF VOUT fall time 2.1
tD ON delay time 160
VIN = 0.7V, VEN = VBIAS = 5V, TA = 25°C
tON Turn-on time RL = 10 Ω, CL = 0.1 µF, CT = 0 pF 170 µs
tOFF Turn-off time 6
tR VOUT rise time 32
tF VOUT fall time 2
tD ON delay time 154
VIN = 2.5V, VEN = 5V, VBIAS = 2.5V, TA = 25°C
tON Turn-on time RL = 10 Ω, CL = 0.1 µF, CT = 0 pF 200 µs
tOFF Turn-off time 6
tR VOUT rise time 79
tF VOUT fall time 2.1
tD ON delay time 160
VIN = 0.7V, VEN = 5V, VBIAS = 2.5V, TA = 25°C
tON Turn-on time RL = 10 Ω, CL = 0.1 µF, CT = 0 pF 170 µs
tOFF Turn-off time 6
tR VOUT rise time 32
tF VOUT fall time 2
tD ON delay time 154
TPS22954 TPS22953 Timing_Test_Circuit.gif
A. Rise and fall times of the control signal is 100 ns.
Figure 1. Timing Test Circuit
TPS22954 TPS22953 Timing_Waveforms.gifFigure 2. Timing Waveforms

8.11 Typical DC Characteristics

TPS22954 TPS22953 D001_SLVSCT5A.gif
VIN = 1.8 V VEN = 5.7V VOUT = 0V
Figure 3. IQ,BIAS vs VBIAS
TPS22954 TPS22953 D003_SLVSCT5A.gif
VIN = 1.8 V VEN = 0V VOUT = 0V
Figure 5. ISD,BIAS vs VBIAS
TPS22954 TPS22953 D005_SLVSCT5A.gif
VBIAS = 2.5 V Iout = –200 mA VEN = 5V
Figure 7. RON vs Temperature, VBIAS = 2.5V
TPS22954 TPS22953 D008_SLVSCT5A.gif
VBIAS = 2.5 V Iout = –200 mA VEN = 5V
Figure 9. RON vs VIN, VBIAS = 2.5 V
TPS22954 TPS22953 D010_SLVSCT5A.gif
VBIAS = 5 V Iout = –200 mA VEN = 5V
Figure 11. RON vs VIN, VBIAS = 5 V
TPS22954 TPS22953 D032_SLVSCT5A.gif
VBIAS = 2.5 V VEN = 5V
Figure 13. RON vs IOUT, VBIAS = 2.5 V
TPS22954 TPS22953 D034_SLVSCT5A.gif
VBIAS = 5 V VEN = 5V
Figure 15. RON vs IOUT, VBIAS = 5 V
TPS22954 TPS22953 D013_SLVSCT5A.gif
VBIAS = 3.3 V VIN = VOUT VEN = 0V
Figure 17. RPD vs VOUT, VBIAS = 3.3 V
TPS22954 TPS22953 D002_SLVSCT5A.gif
VBIAS = 5 V VEN = 5.7V VOUT = 0V
Figure 4. IQ,BIAS vs VIN
TPS22954 TPS22953 D004_SLVSCT5A.gif
VBIAS = 5 V VEN = 0V VOUT = 0V
Figure 6. ISD,IN vs VIN
TPS22954 TPS22953 D006_SLVSCT5A.gif
VBIAS = 3.3 V Iout = –200 mA VEN = 5V
Figure 8. RON vs Temperature, VBIAS = 3.3 V
TPS22954 TPS22953 D009_SLVSCT5A.gif
VBIAS = 3.3 V Iout = –200 mA VEN = 5V
Figure 10. RON vs VIN, VBIAS = 3.3 V
TPS22954 TPS22953 D011_SLVSCT5A.gif
TA = 25°C Iout = –200 mA VEN = 5V
Figure 12. RON vs VIN
TPS22954 TPS22953 D033_SLVSCT5A.gif
VBIAS = 3.3 V VEN = 5V
Figure 14. RON vs IOUT, VBIAS = 3.3 V
TPS22954 TPS22953 D012_SLVSCT5A.gif
VBIAS = 2.5 V VIN = VOUT VEN = 0V
Figure 16. RPD vs VOUT, VBIAS = 2.5 V
TPS22954 TPS22953 D014_SLVSCT5A.gif
VBIAS = 5 V VIN = VOUT VEN = 0V
Figure 18. RPD vs VOUT, VBIAS = 5 V

8.12 Typical Switching Characteristics

TPS22954 TPS22953 D020_SLVSCT5A.gif
VBIAS = 2.5 V CT = 1000 pF VEN = low to high
Figure 19. tR vs VIN , VBIAS = 2.5 V
TPS22954 TPS22953 D022_SLVSCT5A.gif
VBIAS = 2.5 V CT = 1000 pF VEN = high to low
Figure 21. tF vs VIN , VBIAS = 2.5 V
TPS22954 TPS22953 D024_SLVSCT5A.gif
VBIAS = 2.5 V CT = 1000 pF VEN = low to high
Figure 23. tON vs VIN , VBIAS = 2.5 V
TPS22954 TPS22953 D026_SLVSCT5A.gif
VBIAS = 2.5 V CT = 1000 pF VEN = high to low
Figure 25. tOFF vs VIN , VBIAS = 2.5 V
TPS22954 TPS22953 D028_SLVSCT5A.gif
VBIAS = 2.5 V CT = 1000 pF VEN = low to high
Figure 27. tD vs VIN , VBIAS = 2.5 V
TPS22954 TPS22953 D030_SLVSCT5A.gif
VIN = 2.5 V CT = 1000 pF VEN = low to high
Figure 29. tR vs VBIAS
TPS22954 TPS22953 D021_SLVSCT5A.gif
VBIAS = 5 V CT = 1000 pF VEN = low to high
Figure 20. tR vs VIN , VBIAS = 5 V
TPS22954 TPS22953 D023_SLVSCT5A.gif
VBIAS = 5 V CT = 1000 pF VEN = high to low
Figure 22. tF vs VIN , VBIAS = 5 V
TPS22954 TPS22953 D025_SLVSCT5A.gif
VBIAS = 5 V CT = 1000 pF VEN = low to high
Figure 24. tON vs VIN , VBIAS = 5 V
TPS22954 TPS22953 D027_SLVSCT5A.gif
VBIAS = 5 V CT = 1000 pF VEN = high to low
Figure 26. tOFF vs VIN , VBIAS = 5 V
TPS22954 TPS22953 D029_SLVSCT5A.gif
VBIAS = 5 V CT = 1000 pF VEN = low to high
Figure 28. tD vs VIN , VBIAS= 5 V

TPS22954 TPS22953 On_0p7V_2p5V.png
VIN = 0.7 V VBIAS = 2.5 V CT = 1000 pF
CIN = 1 µF CL = 0.1 µF RL = 10 Ω
Figure 30. Turn On Waveform, VBIAS = 2.5 V
TPS22954 TPS22953 On_0p7V_5V.png
VIN = 0.7 V VBIAS = 5 V CT = 1000 pF
CIN = 1 µF CL = 0.1 µF RL = 10 Ω
Figure 32. Turn On Waveform, VBIAS = 5 V
TPS22954 TPS22953 On_2p5V_2p5V.png
VIN = 2.5 V VBIAS = 2.5 V CT = 1000 pF
CIN = 1 µF CL = 0.1 µF RL = 10 Ω
Figure 34. Turn On Waveform, VBIAS = 2.5 V
TPS22954 TPS22953 On_2p5V_5V.png
VIN = 2.5 V VBIAS = 5 V CT = 1000 pF
CIN = 1 µF CL = 0.1 µF RL = 10 Ω
Figure 36. Turn On Waveform, VBIAS = 5 V
TPS22954 TPS22953 On_3p3V_5V.png
VIN = 3.3 V VBIAS = 5 V CT = 1000 pF
CIN = 1 µF CL = 0.1 µF RL = 10 Ω
Figure 38. Turn On Waveform, VBIAS = 5 V
TPS22954 TPS22953 On_5V_5V.png
VIN = 5 V VBIAS = 5 V CT = 1000 pF
CIN = 1 µF CL = 0.1 µF RL = 10 Ω
Figure 40. Turn On Waveform, VBIAS = 5 V
TPS22954 TPS22953 On_3p3V_5V_No_Load.png
VIN = 3.3 V VBIAS = 5 V CT = 1000 pF
CIN = 1 µF CL = 0.1 µF RL = Open
Figure 42. Turn On Waveform, No Load
TPS22954 TPS22953 On_3.3V_5V_Heavy_Load.png
VIN = 3.3 V VBIAS = 5 V CT = 1000 pF
CIN = 1 µF CL = 0.1 µF RL = 1 Ω
Figure 44. Turn On Waveform, Heavy Load
TPS22954 TPS22953 SC_014tek075.png
VIN = 5 V VBIAS = 5 V CT = 1000 pF
CIN = 1 µF CL = 100 µF RL = 10 Ω
Figure 46. PG Response to EN Falling (tDEGLITCH)
TPS22954 TPS22953 SC_017tek077.png
VIN = 5 V VBIAS = 5 V CT = 1000 pF
CIN = 1 µF CL = 100 µF RL = 10 Ω
Figure 48. PG Response to SNS Rising (tBLANK)
TPS22954 TPS22953 Off_0p7V_2p5V.png
VIN = 0.7 V VBIAS = 2.5 V CT = 1000 pF
CIN = 1 µF CL = 0.1 µF RL = 10 Ω
Figure 31. Turn Off Waveform, VBIAS = 2.5 V
TPS22954 TPS22953 Off_0p7V_5V.png
VIN = 0.7 V VBIAS = 5 V CT = 1000 pF
CIN = 1 µF CL = 0.1 µF RL = 10 Ω
Figure 33. Turn Off Waveform, VBIAS = 5 V
TPS22954 TPS22953 OFF_2p5V_2p5V.png
VIN = 2.5 V VBIAS = 2.5 V CT = 1000 pF
CIN = 1 µF CL = 0.1 µF RL = 10 Ω
Figure 35. Turn Off Waveform, VBIAS = 2.5 V
TPS22954 TPS22953 Off_2p5V_5V.png
VIN = 2.5 V VBIAS = 5 V CT = 1000 pF
CIN = 1 µF CL = 0.1 µF RL = 10 Ω
Figure 37. Turn Off Waveform, VBIAS = 5 V
TPS22954 TPS22953 Off_3p3V_5V.png
VIN = 3.3 V VBIAS = 5 V CT = 1000 pF
CIN = 1 µF CL = 0.1 µF RL = 10 Ω
Figure 39. Turn Off Waveform, VBIAS = 5 V
TPS22954 TPS22953 Off_5V_5V.png
VIN = 5 V VBIAS = 5 V CT = 1000 pF
CIN = 1 µF CL = 0.1 µF RL = 10 Ω
Figure 41. Turn Off Waveform, VBIAS = 5 V
TPS22954 TPS22953 On_5V_5V_No_Load.png
VIN = 5 V VBIAS = 5 V CT = 1000 pF
CIN = 1 µF CL = 0.1 µF RL = Open
Figure 43. Turn On Waveform, No Load
TPS22954 TPS22953 On_5V_5V_Heavy_Load.png
VIN = 5 V VBIAS = 5 V CT = 1000 pF
CIN = 1 µF CL = 0.1 µF RL = 1 Ω
Figure 45. Turn On Waveform, Heavy Load
TPS22954 TPS22953 SC_016tek076.png
VIN = 5 V VBIAS = 5 V CT = 1000 pF
CIN = 1 µF CL = 100 µF RL = 10 Ω
Figure 47. PG Response to SNS Falling with Auto-Restart (tDEGLITCH and tRESTART)
TPS22954 TPS22953 SC_018tek078.png
VIN = 5 V VBIAS = 5 V CT = 1000 pF
CIN = 1 µF CL = 100 µF RL = None
Figure 49. Quick Output Discharge of 100µF Load (tDIS)