SLVS038I January   1989  – July 2016 TL2842 , TL2843 , TL2844 , TL2845 , TL3842 , TL3843 , TL3844 , TL3845

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and 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 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 Pulse-by-Pulse Current Limiting
      2. 7.3.2 Error Amplifier With Low Output Resistance
      3. 7.3.3 High-Current Totem-Pole Output
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Technique
      2. 7.4.2 Slope Compensation
  8. 8 Application and Implementation
    1. 8.1 Typical Application
      1. 8.1.1 Design Requirements
      2. 8.1.2 Detailed Design Procedure
        1. 8.1.2.1 Current-Sense Circuit
        2. 8.1.2.2 Error-Amplifier Configuration
        3. 8.1.2.3 Oscillator Section
      3. 8.1.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Feedback Traces
      2. 10.1.2 Input/Output Capacitors
      3. 10.1.3 Compensation Components
      4. 10.1.4 Traces and Ground Planes
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Related Links
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • D|14
  • D|8
  • P|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5 Pin Configuration and Functions

D Package
14-Pin SOIC
Top View
D or P Package
8-Pin SOIC or PDIP
Top View
NC — No internal connection

Pin Functions

PIN TYPE DESCRIPTION
NAME D D or P
COMP 1 1 I/O Error amplifier compensation pin
GND 9 5 — Device power supply ground terminal
ISENSE 5 3 I Current sense comparator input
NC 2, 4, 6, 13 — — Do not connect
OUTPUT 10 6 O PWM Output
POWER GROUND 8 — — Output PWM ground terminal
REF 14 8 O Oscillator voltage reference
RT/CT 7 4 I/O Oscillator RC input
VC 11 — — Output PWM positive voltage supply
VCC 12 7 — Device positive voltage supply
VFB 3 2 I Error amplifier input