SLUS720F February   2007  – June 2019 TPS40195

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Application Diagram
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Electrical Characteristics
    5. 7.5 Dissipation Ratings
    6. 7.6 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 Functionality
      2. 8.3.2  Voltage Reference
      3. 8.3.3  Oscillator and Synchronization
      4. 8.3.4  Undervoltage Lockout (UVLO)
      5. 8.3.5  Soft Start
      6. 8.3.6  Selecting the Short Circuit Threshold
      7. 8.3.7  5-V Regulator
      8. 8.3.8  Prebias Start-up
      9. 8.3.9  Drivers
      10. 8.3.10 Power Good
      11. 8.3.11 Thermal Shutdown
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Typical Application 1
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Output Inductor, LOUT
          2. 9.2.1.2.2 Output Capacitor, COUT
          3. 9.2.1.2.3 Input Capacitor, CIN
          4. 9.2.1.2.4 Switching MOSFET, QSW
          5. 9.2.1.2.5 Rectifier MOSFET, QSR
          6. 9.2.1.2.6 Component Selection for the TPS40195
            1. 9.2.1.2.6.1 Timing Resistor, RT
            2. 9.2.1.2.6.2 Setting UVLO
            3. 9.2.1.2.6.3 Setting the Soft-Start Time
            4. 9.2.1.2.6.4 Short-Circuit Protection, RILIM
            5. 9.2.1.2.6.5 Voltage Decoupling Capacitors, CBP, and CVDD
            6. 9.2.1.2.6.6 Boost Voltage, CBOOST and DBOOST (optional)
            7. 9.2.1.2.6.7 Closing the Feedback Loop RZ1, RP1, RPZ2, RSET1, RSET2, CZ2, CP2 AND CPZ1
          7. 9.2.1.2.7 Application Curve
      2. 9.2.2 Typical Application 2
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curves
      3. 9.2.3 Typical Application 3
        1. 9.2.3.1 Design Requirements
        2. 9.2.3.2 Detailed Design Procedure
        3. 9.2.3.3 Application Curves
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
    2. 11.2 Device Support
      1. 11.2.1 Related Parts
    3. 11.3 Documentation Support
      1. 11.3.1 Related Documentation
    4. 11.4 Receiving Notification of Documentation Updates
    5. 11.5 Community Resources
    6. 11.6 Trademarks
    7. 11.7 Electrostatic Discharge Caution
    8. 11.8 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

9.2.1.1 Design Requirements

Table 3. Example Electrical Characteristics

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
INPUT
VIN Input voltage 10.8 12.0 13.2 V
IIN Input current VIN = 12 V, IOUT= 10 A 1.7 1.8 A
No load, VIN = 12 V, IOUT= 0 A 5 mA
VIN_ UVLO_OFF Undervoltage lockout turn off threshold 0 A ≤ IOUT ≤ 10 A 5.4 6.0 6.6 V
VIN_UVLO_ON Undervoltage lockout turn on threshold 0 A ≤ IOUT ≤ 10 A 6.6 7.0 7.6
OUTPUT
VOUT Input voltage range VIN = 12 V, IOUT= 5 1.75 1.80 1.85 V
Line regulation 10.8 ≤ VIN ≤ 13.2 V 0.5%
Load regulation 0 A ≤ IOUT ≤ 10 A 0.5%
VOUT(ripple) Output voltage ripple VIN = 12 V, IOUT= 10 A 100 mVP-P
IOUT Output current 10.8 ≤ VIN ≤ 13.2 V 0 5 10 A
IOCP Output overcurrent inception point VIN = 12 V, VOUT= (VOUT- 5) 14 20 43
ΔI Transient response load step 10 A ≤ IOUT(max) ≤ 0.2 × ( IOUT(max) ) 8 A
Transient response load slew rate 5 A/μs
Transient response overshoot 200 mV
Transient response settling time 1 ms
SYSTEM
fSW Switching frequency 240 300 360 kHz
ηPK Peak efficiency VIN = 12 V, 0 A ≤ IOUT ≤ 10 A 90%
η Efficiency at full load VIN = 12 V, IOUT = 10 A 87%
TOP Operating temperature range 10.8 ≤ VIN ≤ 13.2 V, 0 A ≤ IOUT ≤ 10 A -40 25 85 °C
MECHANICAL
W Width 1.6 in
L Length 3.5
h Height 0.26