SLVS610C August   2006  – October 2024 TL2842B , TL2843B , TL2844B , TL2845B , TL3842B , TL3843B , TL3844B , TL3845B

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Reference Section Electrical Characteristics
    6. 5.6  Oscillator Section Electrical Characteristics
    7. 5.7  Error-Amplifier Section Electrical Characteristics
    8. 5.8  Current-Sense Section Electrical Characteristics
    9. 5.9  Output Section Electrical Characteristics
    10. 5.10 Undervoltage-Lockout Section Electrical Characteristics
    11. 5.11 Pulse-Width Modulator Section Electrical Characteristics
    12. 5.12 Supply Voltage Electrical Characteristics
    13. 5.13 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Functional Block Diagram
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Shutdown Technique
    3. 7.3 Open-Loop Laboratory Test Fixture
    4. 7.4 Typical Application
      1. 7.4.1 Application Curves
  9. 8 Device and Documentation Support
    1. 8.1 Related Links
    2. 8.2 Trademarks
    3. 8.3 Electrostatic Discharge Caution
    4. 8.4 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

5.6 Oscillator Section Electrical Characteristics

VCC = 15 V(1), RT = 10 kΩ, CT = 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified)(3)
PARAMETERTEST CONDITIONSTL284xBTL384xBUNIT
MINTYP(2)MAXMINTYP(2)MAX
Initial accuracyTJ = 25°C475257475257kHz
TA = Tlow to Thigh44604460
TJ = 25°C, RT = 6.2 kΩ, CT = 1 nF225250275225250275
Voltage stabilityVCC = 12 V to 25 V0.210.21%
Temperature stability55%
AmplitudePeak to peak1.71.7V
Discharge currentTJ = 25°C, RT/CT = 2 V7.88.38.87.88.38.8mA
RT/CT = 2 V7.58.87.68.8
(1) Adjust VCC above the start threshold before setting it to 15 V.
(2) All typical values are at TJ = 25°C.
(3) Output frequency equals oscillator frequency for the TL3842B and TL3843B. Output frequency is one-half the oscillator frequency for the TL3844B and TL3845B.