SLVSDD9 March 2017 TPS92692 , TPS92692-Q1
PRODUCTION DATA.
- 1 Features
- 2 Applications
- 3 Description
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
-
7 Detailed Description
- 7.1 Overview
- 7.2 Functional Block Diagram
- 7.3
Feature Description
- 7.3.1 Internal Regulator and Undervoltage Lockout (UVLO)
- 7.3.2 Oscillator
- 7.3.3 Spread Spectrum Frequency Modulation
- 7.3.4 Gate Driver
- 7.3.5 Rail-to-Rail Current Sense Amplifier
- 7.3.6 Transconductance Error Amplifier
- 7.3.7 Switch Current Sense
- 7.3.8 Slope Compensation
- 7.3.9 Analog Adjust Input
- 7.3.10 DIM/PWM Input
- 7.3.11 Series P-Channel FET Dimming Gate Driver Output
- 7.3.12 Soft-Start
- 7.3.13 Current Monitor Output
- 7.3.14 Output Overvoltage Protection
- 7.3.15 Output Short-circuit Protection
- 7.3.16 Thermal Protection
- 7.3.17 Fault Indicator (FLT)
- 7.4 Device Functional Modes
-
8 Application and Implementation
- 8.1
Application Information
- 8.1.1 Duty Cycle Considerations
- 8.1.2 Inductor Selection
- 8.1.3 Output Capacitor Selection
- 8.1.4 Input Capacitor Selection
- 8.1.5 Main Power MOSFET Selection
- 8.1.6 Rectifier Diode Selection
- 8.1.7 LED Current Programming
- 8.1.8 Switch Current Sense Resistor
- 8.1.9 Slope Compensation
- 8.1.10 Feedback Compensation
- 8.1.11 Soft-Start
- 8.1.12 Overvoltage and Undervoltage Protection
- 8.1.13 Analog to PWM Dimming Considerations
- 8.1.14 Direct PWM Dimming Considerations
- 8.1.15 Series P-Channel MOSFET Selection
- 8.2
Typical Applications
- 8.2.1
Typical Boost LED Driver
- 8.2.1.1 Design Requirements
- 8.2.1.2
Detailed Design Procedure
- 8.2.1.2.1 Calculating Duty Cycle
- 8.2.1.2.2 Setting Switching Frequency
- 8.2.1.2.3 Setting Dither Modulation Frequency
- 8.2.1.2.4 Inductor Selection
- 8.2.1.2.5 Output Capacitor Selection
- 8.2.1.2.6 Input Capacitor Selection
- 8.2.1.2.7 Main N-Channel MOSFET Selection
- 8.2.1.2.8 Rectifying Diode Selection
- 8.2.1.2.9 Programming LED Current
- 8.2.1.2.10 Setting Switch Current Limit
- 8.2.1.2.11 Programming Slope Compensation
- 8.2.1.2.12 Deriving Compensator Parameters
- 8.2.1.2.13 Setting Start-up Duration
- 8.2.1.2.14 Setting Overvoltage Protection Threshold
- 8.2.1.2.15 Analog-to-PWM Dimming Considerations
- 8.2.1.3 Application Curves
- 8.2.2
Typical Buck-Boost LED Driver
- 8.2.2.1 Design Requirements
- 8.2.2.2
Detailed Design Procedure
- 8.2.2.2.1 Calculating Duty Cycle
- 8.2.2.2.2 Setting Switching Frequency
- 8.2.2.2.3 Setting Dither Modulation Frequency
- 8.2.2.2.4 Inductor Selection
- 8.2.2.2.5 Output Capacitor Selection
- 8.2.2.2.6 Input Capacitor Selection
- 8.2.2.2.7 Main N-Channel MOSFET Selection
- 8.2.2.2.8 Rectifier Diode Selection
- 8.2.2.2.9 Programming LED Current
- 8.2.2.2.10 Setting Switch Current Limit and Slope Compensation
- 8.2.2.2.11 Programming Slope Compensation
- 8.2.2.2.12 Deriving Compensator Parameters
- 8.2.2.2.13 Setting Startup Duration
- 8.2.2.2.14 Setting Overvoltage Protection Threshold
- 8.2.2.2.15 Direct PWM Dimming Consideration
- 8.2.2.3 Application Curves
- 8.2.1
Typical Boost LED Driver
- 8.1
Application Information
- 9 Power Supply Recommendations
- 10Layout
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
封裝選項(xiàng)
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- PWP|20
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
- PWP|20
訂購信息
11 Device and Documentation Support
11.1 Related Links
The table below lists quick access links. Categories include technical documents, support and community resources, tools and software, and quick access to sample or buy.
Table 7. Related Links
| PARTS | PRODUCT FOLDER | SAMPLE & BUY | TECHNICAL DOCUMENTS | TOOLS & SOFTWARE | SUPPORT & COMMUNITY |
|---|---|---|---|---|---|
| TPS92692 | Click here | Click here | Click here | Click here | Click here |
| TPS92692-Q1 | Click here | Click here | Click here | Click here | Click here |
11.2 Community Resources
The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use.
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TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers.
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Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support.
11.3 Trademarks
PowerPAD, E2E are trademarks of Texas Instruments.
11.4 Electrostatic Discharge Caution
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
11.5 Glossary
SLYZ022 — TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.