SLVSDT4F October   2017  – December 2021 TPS2662

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  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
    6. 7.6 Timing Requirements
    7. 7.7 Typical 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 Undervoltage Lockout (UVLO)
      2. 9.3.2 Overvoltage Protection (OVP)
      3. 9.3.3 Hot Plug-In and Inrush Current Control
      4. 9.3.4 Reverse Polarity Protection
        1. 9.3.4.1 Input Side Reverse Polarity Protection
        2. 9.3.4.2 Output Side Reverse Polarity Protection
      5. 9.3.5 Overload and Short-Circuit Protection
        1. 9.3.5.1 Overload Protection
        2.       28
        3. 9.3.5.2 Short-Circuit Protection
          1. 9.3.5.2.1 Start-Up With Short-Circuit On Output
      6. 9.3.6 Reverse Current Protection
      7. 9.3.7 FAULT Response
      8. 9.3.8 IN, OUT, RTN, and GND Pins
      9. 9.3.9 Thermal Shutdown
    4. 9.4 Device Functional Modes
      1. 9.4.1 Low Current Shutdown Control (SHDN)
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Step-by-Step Design Procedure
        2. 10.2.2.2 Programming the Current Limit Threshold R(ILIM) Selection
        3. 10.2.2.3 Undervoltage Lockout and Overvoltage Set Point
        4. 10.2.2.4 Setting Output Voltage Ramp Time—(tdVdT)
          1. 10.2.2.4.1 Case 1: Start-Up Without Load—Only Output Capacitance C(OUT) Draws Current During Start-Up
          2. 10.2.2.4.2 Case 2: Start-Up With Load —Output Capacitance C(OUT) and Load Draws Current During Start-Up
          3. 10.2.2.4.3 Support Component Selections – R FLT and C(IN)
      3. 10.2.3 Application Curves
    3. 10.3 System Examples
      1. 10.3.1 Field Supply Protection in PLC, DCS I/O Modules
      2. 10.3.2 Simple 24-V Power Supply Path Protection
      3. 10.3.3 Power Stealing in Smart Thermostat
    4. 10.4 Do's and Don'ts
  11. 11Power Supply Recommendations
    1. 11.1 Transient Protection
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 Receiving Notification of Documentation Updates
    3. 13.3 Support Resources
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.5 Electrical Characteristics

–40°C ≤ TA = TJ ≤ +125°C, V(IN) = 24 V, V( SHDN) = 2 V, R(ILIM) = 267 kΩ, FLT = OPEN, C(OUT) = 1 µF, C(dVdT) = OPEN. (All voltages referenced to GND, (unless otherwise noted))
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
SUPPLY VOLTAGE
V(IN)Operating input voltage4.560V
V(PORR)Internal POR threshold, rising3.543.734.2V
V(PORHys)Internal POR hysteresis110mV
IQ(ON)Supply currentEnabled: V( SHDN) = 2 V343482µA
IQ(OFF)V( SHDN) = 0 V11.525µA
I(VINR)Reverse Input supply currentV(IN) = – 24 V, V(OUT) = 0 V50130µA
V(OVC)Over voltage clampV(IN) > 40 V, ILOAD = 10 mA,TPS26622, TPS26623 Only3637.540V
UNDERVOLTAGE LOCKOUT (UVLO) INPUT
V(UVLOR)UVLO threshold voltage, rising1.181.21.23V
V(UVLOF)UVLO threshold, Falling1.091.11.135V
I(UVLO)UVLO Input Leakage Current0 V ≤ V(UVLO) ≤ 3.5 V–1000100nA
I(UVLO)UVLO Input Leakage CurrentV(UVLO) = 5 V18.838µA
OVER VOLTAGE PROTECTION (OVP) INPUT
V(OVPR)Overvoltage threshold voltage, rising1.181.21.23V
V(OVPF)Overvoltage threshold, falling1.091.121.135V
I(OVP)OVP Input Leakage Current0 V ≤ V(OVP) ≤ 5 V–1000100nA
LOW IQ SHUTDOWN ( SHDN) INPUT
V( SHDN)Output voltageI( SHDN) = 0.1 µA2.392.7813.1V
V(SHUTF)SHDN Threshold Voltage for Low IQ Shutdown, Falling0.9V
V(SHUTR)SHDN Threshold, rising1.8V
I( SHDN)Input currentV( SHDN) = 0.4 V–10–2.4µA
OUTPUT RAMP CONTROL (dVdT)
I(dVdT)dVdT Charging CurrentV(dVdT) = 0V1.681.982.33µA
R(dVdT)dVdT Discharging ResistanceV( SHDN) = 0 V, with I(dVdT) = 10mA sinking13.122Ω
V(dVdTmax)dVdT Max Capacitor Voltage44.344.75V
GAIN(dVdT)dVdT to OUT GainV(OUT) /V(dVdT)23.924.625.2V/V
CURRENT LIMIT PROGRAMMING (ILIM)
V(ILIM)ILIM bias voltage1V
I(OL)Overload Current LimitR(ILIM) = 267 kΩ, V(IN) – V(OUT) = 1 V0.020.0250.032A
R(ILIM) = 44.2 kΩ, V(IN) – V(OUT) = 1 V0.1450.1520.159
R(ILIM) = 26.7 kΩ, V(IN) – V(OUT) = 1 V0.2370.250.257
R(ILIM) = 13.3 kΩ, V(IN) – V(OUT) = 1 V0.470.50.52
R(ILIM) = 8.25 kΩ, V(IN) – V(OUT) = 1 V0.7570.80.827
R(ILIM) = 7.5 kΩ, V(IN) – V(OUT)= 1 V0.830.880.91
I(OL_R-OPEN)R(ILIM)= OPEN, Open Resistor Current Limit (single point failure test: UL60950)815.527mA
I(OL_R-SHORT)R(ILIM)= SHORT, Shorted Resistor Current Limit (single point failure test: UL60950)3139.351mA
I(SCL)Short-Circuit Current LimitR(ILIM) = 7.5 kΩ, V(IN) – V(OUT)= 24 V0.885A
I(FAST-TRIP)Fast-Trip Comparator Threshold1.6A
PASS FET OUTPUT (OUT)
RON0.025 A ≤ I(OUT) ≤ 0.8 A, TJ = 25°C, R(ILIM) = 7.5 kΩ435478521mΩ
0.025 A ≤ I(OUT) ≤ 0.8A, TJ = 85°C, R(ILIM) = 7.5 kΩ626685
0.025 A ≤ I(OUT) ≤ 0.8A, –40°C ≤ TJ  ≤125°C, R(ILIM) = 7.5 kΩ250478800
Ilkg(OUT)OUT Leakage Current in Off StateV(IN) = 57 V, V( SHDN)= 0 V, V(OUT) = 0 V, Sourcing4.3812µA
V(IN) = 0 V, V( SHDN)= 0 V, V(OUT) = 24 V, Sinking7.27102
V(IN) = – 57V, V( SHDN)= 0V, V(OUT) = 0V, Sinking168
OUT leakage current under output reverse polarity conditionV(IN) = 24 V, V(OUT) = – 24 V, V( SHDN) = 2 V, TP26624, TPS26625 Only450
V(REVTH)V(IN) – V(OUT) threshold for reverse protection comparator, falling–71–54–40mV
V(FWDTH)V(IN) – V(OUT) threshold for reverse protection comparator, rising1.41530mV
FAULT FLAG ( FLT): ACTIVE LOW
R( FLT)FLT Pull-Down ResistanceV(OVP) = 2 V, I( FLT) = 5mA sinking4582.3145Ω
I( FLT)FLT Input Leakage Current0 V ≤ V( FLT) ≤ 60 V–1000100nA
THERMAL SHUT DOWN (TSD)
T(TSD)TSD Threshold, rising155°C
T(TSDhyst)TSD Hysteresis10°C
Thermal Fault (Latch or Auto-Retry)TPS26620, TPS26622, TPS26624Latch
TPS26621, TPS26623, TPS26625Auto–retry