SLVSGF4B june   2022  – may 2023 TPS1641

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 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Enable and Shutdown Input (EN/SHDN)
      2. 8.3.2  Overvoltage Protection (OVP)
      3. 8.3.3  Output Slew Rate and Inrush Current Control (dVdt)
      4. 8.3.4  Active Current Limiting (ILIM) With the TPS16412, TPS16413, TPS16416, and TPS16417
      5. 8.3.5  Active Power Limiting (PLIM) With the TPS16410, TPS16411, TPS16414, and TPS16415
        1. 8.3.5.1 Internal Current Limit for the TPS16410 and TPS16411
      6. 8.3.6  Overcurrent Protection (IOCP) and Blanking Time (IDLY or PDLY) for Transient Loads
      7. 8.3.7  Fast-Trip and Short-Circuit Protection
      8. 8.3.8  Analog Load Current Monitor (IMON) on the IOCP Pin
      9. 8.3.9  IN to OUT Short Detection (TPS16410, TPS16411, TPS16412, and TPS16413)
      10. 8.3.10 Thermal Shutdown and Overtemperature Protection
      11. 8.3.11 Fault Response and Indication (FLT)
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application: 15-W Power Limiting for Low Power Circuits (LPCs)
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Setting Overvoltage Setpoints
        2. 9.2.2.2 Setting the Output Overcurrent Setpoint (IOCP)
        3. 9.2.2.3 Setting the Output Power Limit
        4. 9.2.2.4 Monitoring the Output Current
        5. 9.2.2.5 Limiting the Inrush Current and Setting the Output Slew Rate
      3. 9.2.3 Application Curves
    3. 9.3 System Examples
      1. 9.3.1 Accurate Power or Current Limiting at the Output of DC/DC or Flyback Converter
    4. 9.4 Best Design Practices
    5. 9.5 Power Supply Recommendations
      1. 9.5.1 Transient Protection
    6. 9.6 Layout
      1. 9.6.1 Layout Guidelines
      2. 9.6.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Receiving Notification of Documentation Updates
    2. 10.2 Support Resources
    3. 10.3 Trademarks
    4. 10.4 Electrostatic Discharge Caution
    5. 10.5 Glossary
  11. 11Mechanical, 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, VIN = 3 V to 40 V (TPS16412, TPS16413, TPS16416, TPS16417), VIN = 4.5 V to 40 V (TPS16410, TPS16411, TPS16414, TPS16415), Vcc = VIN, RILIM = 5.49 kΩ RPLIM = 255 kΩ RIOCP  = 7.32 kΩ , FLT = Open, COUT = 100 nF, CIN = 10 nF  CdVdT = Open, PDLY/IDLY = Open. , EN/SHDN = Open
(Allvoltages referenced to GND, (unless otherwise noted))
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
OPERATING INPUT AND SUPPLY VOLTAGE
Vcc Operating Supply voltage VIN 60 V
VIN Operating Input voltage TPS16410, TPS16411, TPS16414 ,TPS16415 4.5 40 V
VIN Operating Input voltage TPS16412, TPS16413, TPS16416, TPS16417 2.7 40 V
IQ Operting Supply curent (Vcc) EN/SHDN = 2 V, Vcc = 40 V, VIN = Open, RILIM or RPLIM = Open  1.2 2.1 mA
IQSD Shutdown Supply current (Vcc) EN/SHDN = GND, Vcc = 40 V, VIN = Open, RILIM or RPLIM = Open, RIOCP = Open 14 36 µA
IINLKG IN Leakage Current in ON State EN/SHDN = 2 V, VIN = Vcc = 40 V, Open, RILIM or RPLIM = Open 0.025 0.52 mA
IINLKG-SD IN Leakage Current in Shutdown EN/SHDN = GND,VIN = Vcc = 40 V,  RILIM or RPLIM = Open, RIOCP = Open 0.7 2.8 µA
OVER-VOLTAGE PROTECTION (OVP) INPUT
VOVPR OVP rising threshold 1.48 1.53 1.58 V
VOVPF OVP falling threshold 1.34 1.40 1.46 V
IOVP OVP leakage current 0 V ≤ VOVP ≤ 4 V –350 –265 –200 nA
EN/SHDN INPUT
VENR Enable rising threshold 1.2 V
VENF Enable falling threshold 0.59 V
IEN Enable leakage current 0 V ≤ VEN ≤ 4 V –10 µA
VEN-Open Open circuit Enable Voltage IEN = 0.1 µA, VCC ≥ 5 V 4.9 V
OUTPUT POWER LIMITING (PLIM)
POUT Output Power Limit RPLIM = 26.7 kΩ 3 3.66 4.5 W
POUT Output Power Limit RPLIM = 95.3 kΩ, –40°C ≤ TA ≤ +85°C 12.94 13.69 14.44 W
POUT Output Power Limit RPLIM = 255 kΩ, –40°C ≤ TA ≤ +85°C 34 37 39.8 W
OUTPUT CURRENT LIMITING (ILIM)
IOUT Output Current Limit RILIM = 332 kΩ 0.024 0.032 0.039 A
IOUT Output Current Limit RILIM = 10 kΩ, –40°C ≤ TA ≤ +85°C 0.918 0.987 1.035 A
IOUT Output Current Limit RILIM = 5.49 kΩ, –40°C ≤ TA ≤ +85°C 1.671 1.77 1.881 A
POWER OUTPUT (OUT)
RON IN to OUT On resistance –40°C ≤ TJ ≤ 125°C 96 153 260 mΩ
RON IN to OUT On resistance 0°C ≤ TJ ≤ 85°C 153 215 mΩ
RON IN to OUT On resistance TJ = 25°C 153 160 mΩ
ILKG-OUT Output Leakage current in OFF state VIN = 40 V, VOUT = 0 V, EN = Low –15 –1.2 µA
CURRENT MONITORING OUTPUT (IMON)
GIMON Gain : IMON/IOUT IOUT = 0.05 to 1.8 A 45 50 55 µA/A
OSIMON IMON Offset current IOUT = 0.3 to 0.8 A –0.8 0.05 0.8 µA
OVER CURRENT PROTECTION (IOCP) AND SHORT CIRCUIT PROTECTION (ISCP)
IOCP Over curret protection set-point RIOCP = 7.32 kΩ 2.11 2.23 2.35 A
IOCP Over curret protection set-point RIOCP = 16.2 kΩ 0.95 1.01 1.07 A
IFasttrip Fast Trip protection threshold 1.9 × IOCP A
ISCP Short circuit protection threshold 6.7 A
ILIM-Internal Internal Current Limit TPS16410, TPS16411, TPS16414, TPS16415 0.81 × IOCP A
THERMAL PROTECTION and SHUTDOWN (TTSD)
TTSD Thermal shutdown temperature 155 °C
TTSD-hyst Thermal shutdown temperature hysteresis 12 °C
Output slew rate control (dVdT)
IdVdT dVdT charging current 1.78 2 2.23 µA
GdVdT dVdT Gain 50 V/V
FLT Output (FLTb) (Open Drain Output)
RFLTb Fault pin pull down resistance 73 Ω
IFLTb-LKG Fault pin leakage current FLT is High,  VFLT ≤ 25 V –1 0.005 1 µA
IN to OUT Short Detection (TPS16410, TPS16411, TPS16412 , TPS16413)
Rshort Resistance for IN to OUT short detection 30 mΩ