SLVSE42B October   2017  – September 2019 TPS27S100

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Typical Application Schematic
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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 – Current Monitor Characteristics
    7. 6.7 Switching Characteristics
    8. 6.8 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Accurate Current Monitor
      2. 7.3.2 Adjustable Current Limit
      3. 7.3.3 Inductive-Load Switching-Off Clamp
      4. 7.3.4 Full Protections and Diagnostics
        1. 7.3.4.1 Short-to-GND and Overload Detection
        2. 7.3.4.2 Open-Load Detection
        3. 7.3.4.3 Short-to-Supply Detection
        4. 7.3.4.4 Thermal Fault Detection
        5. 7.3.4.5 UVLO Protection
        6. 7.3.4.6 Loss of GND Protection
        7. 7.3.4.7 Reverse Current Protection
        8. 7.3.4.8 Protection for MCU I/Os
    4. 7.4 Device Functional Modes
      1. 7.4.1 Working Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
      1. 10.2.1 Without a GND Network
      2. 10.2.2 With a GND Network
  11. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

6.5 Electrical Characteristics

5 V < VIN < 40 V; –40°C < TJ < 150°C unless otherwise specified
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
OPERATING VOLTAGE
VIN(nom) Nominal operating voltage 4 40 V
VIN(uvr) Undervoltage restart VIN rises up 3.5 3.7 4 V
VIN(uvf) Undervoltage shutdown VIN falls down 3 3.2 3.5 V
V(uv,hys) 0.5 V
OPERATING CURRENT
I(op) Nominal operating current VEN = 5 V, VDIAG_EN = 0 V, 5 V < VIN  < 30 V, no load; –40°C TJ < 125°C 2.5 3.2 mA
I(op) Nominal operating current VEN = 5 V, VDIAG_EN = 0 V, 5 V < VIN  < 40 V, no load; –40°C TJ < 150°C 2.5 5 mA
I(op) Nominal operating current VEN = 5 V, VDIAG_EN = 0 V, 24-Ω load 10 mA
I(off) Standby mode current VIN = 24 V, VEN = VDIAG_EN = VIMON = VILIM = VOUT = 0 V, TJ = 25°C 2 µA
I(off,diag) Standby current with diagnostic enabled VIN = 24 V, VEN = 0 V, VDIAG_EN = 5 V 1.2 mA
t(off,deg) Standby mode deglitch time(1) EN from high to low, if deglitch time > t(off,deg), the device enters into standby mode. 2 ms
Ilkg(out) Off-state output leakage current VIN = 24 V, VEN = VOUT = 0, TJ = 25°C 0.5 µA
POWER STAGE
rDS(on) On-state resistance VIN > 5 V, TJ = 25°C 80 100 mΩ
VIN > 5 V, TJ = 150°C 166 mΩ
VIN = 3.5 V, TJ = 25°C 120 mΩ
IILIM(int) Internal current limit Internal current limit value, ILIM pin connected to GND 7 13 A
IILIM(TSD) Current limit during thermal shutdown Internal current limit value under thermal shutdown 5 A
External current limit value under thermal shutdown as a percentage of the external current limit setting value 50 %
VDS(clamp) Drain-to-source internal clamp voltage 50 70 V
OUTPUT DIODE CHARACTERISTICS
VF Drain-to-source diode voltage VEN = 0, IOUT = −0.2 A 0.7 V
I(R1) Continuous reverse current from source to drain t < 60 s, VEN = 0, TJ = 25°C. Short-to-supply condition. 2 A
I(R2) Continuous reverse current from source to drain t < 60 s, VEN = 0, TJ = 25°C. With GND network, 1-kΩ resistor in parallel with A diode. Reverse-polarity condition. 3 A
LOGIC INPUT (EN AND DIAG_EN)
VIH Logic high-level voltage 2 V
VIL Logic low-level voltage 0.8 V
R(EN,pd) EN pulldown resistor 500 kΩ
R(DIAG,pd) DIAG_EN pulldown resistor 150 kΩ
DIAGNOSTICS
V(ol,off) Open-load detection threshold in off-state VEN = 0 V, When VIN – VOUT < V(ol,off), duration longer than td(ol,off). Open load detected. 1.4 1.8 2.6 V
I(ol,off) Off-state output sink current with open load VEN = 0 V, VIN = VOUT = 24 V, TJ = 125°C. –150 µA
td(ol,off) Open-load detection-threshold deglitch time in off state VEN = 0 V, When VIN – VOUT < Vol,off, duration longer than tol,off. Open load detected. 600 µs
I(ol,on) Open-load detection threshold in on state VEN = 5 V, when IOUT < I(ol,on), duration longer than td(ol,on). Open load detected.
Version A only		 2 6 10 mA
td(ol,on) Open-load detection-threshold deglitch time in on-state VEN = 5 V, when IOUT < I(ol,on), duration longer than td(ol,on). Open load detected. 700 µs
V(FLT) Fault low output voltage IFLT = 2 mA 0.4 V
T(SD) Thermal shutdown threshold 175 °C
T(SD,rst) Thermal shutdown status reset 155 °C
T(SW) Thermal swing shutdown threshold 60 °C
T(hys) Hysteresis for resetting the thermal shutdown and swing 10 °C
CURRENT MONITOR AND CURRENT LIMIT
K(IMON) Current sense current ratio 500
K(ILIM) Current limit current ratio 2000
dK(IMON)/K(IMON) Current-monitor accuracy Iload ≥ 5 mA –80 80 %
Iload ≥ 25 mA –12 12
Iload ≥ 50 mA –8 8
Iload ≥ 0.1 A –5 5
Iload ≥ 1 A –3 3
dK(ILIM)/K(ILIM)      External current-limit accuracy(2), (3) Ilimit ≥ 0.5 A, 25°C < TJ < 150°C –20 20 %
Ilimit ≥ 0.5 A, -40°C < TJ < 25°C –28 28 %
dK(ILIM)/K(ILIM) External current-limit accuracy(2), (3) Ilimit ≥ 1.6 A, 25°C < TJ < 150°C –15 15 %
Ilimit ≥ 1.6 A, -40°C < TJ < 25°C –18 18
VIMON(lin) Current-monitor voltage linear voltage range(1) VIN ≥ 5 V 0 4 V
IOUT(lin) Current-monitor voltage linear current range(1) VIN ≥ 5 V, VIMON(lin) ≤ 4 V 0 4 A
VIMON(H) IMON pin voltage in Fault mode VIN ≥ 7 V, fault mode 4.3 4.75 4.9 V
VIN ≥ 5 V, fault mode Min(VIN – 0.8, 4.3) 4.9
IIMON(H) IMON pin current in Fault mode VIMON = 4.3 V, VIN > 7 V, fault mode 10 mA
VIMON(th) Current limit internal threshold voltage(1) 1.233 V
(1) Value is specified by design, not subject to production test.
(2) External current limit set is recommended to be higher than 500 mA.
(3) External current limit accuracy is only applicable to overload conditions greater than 1.5 x the current limit setting.