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TFX12V manual Thin Form Factor with 12-Volt Connector, Power Supply Design Guide, Version
Models:
TFX12V
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Specs
PWROK Signal Characteristics
Dimension
Typical Power Distribution for 180 W TFX12V Configurations
AWG Wire
Reset after Shutdown
Differential Noise Test Setup
Signal
Over-temperature Protection
Safety
Page 1
Image 1
TFX12V
Thin Form Factor with
12-Volt
Connector
Power Supply Design Guide
Version 2.0
Page 2
Page 1
Image 1
Page 2
Contents
Power Supply Design Guide
Thin Form Factor with 12-Volt Connector
TFX12V
Version
IMPORTANT INFORMATION AND DISCLAIMERS
Version
Revision History
Release Date
Introduction
Electrical
Contents
Safety
Mechanical
Environmental
Electromagnetic Compatibility
Tables
Figures
1.1 TFX12V Scope
1 Introduction
1.2 TFX12V Overview
1.2.1 Small System Optimized Profile
1.3.4 Separate Current Limit for 12V2 on the 2x2 Connector
1.3.3 Main Power Connector
1.3 Key Changes for TFX12V Version
1.2.2 Improved Acoustics
Term Required Recommended Optional BA CFM Monotonically Noise
1.4 Terminology
Description
2.1 AC Input
2 Electrical
2.1.1 Input Over Current Protection
2.1.2 Inrush Current Limiting
2.1.4 Regulatory
2.1.4.1 PRODUCT SAFETY
2.1.4.2 ELECTROMAGNETIC CAMPATIBILITY
2.1.4.3 Other Certifications and/or Declarations
2.1.5 Catastrophic Failure Protection
2.2 DC Output
2.2.1 DC Voltage Regulation
2.2.2 Remote Sensing
Table 3. Typical Power Distribution for 180 W TFX12V Configurations
2.2.3 Typical Power Distribution
Figure 2. Cross Loading Graph for 180W Configuration
w atts
Table 4. Typical Power Distribution for 220 W TFX12V Configurations
12V power watts
Figure 3. Cross Loading Graph for 220W Configuration
220W Cross Regulation 5V rail + 3.3V rail vs
Table 5. Typical Power Distribution for 240 W TFX12V Configurations
12V power watts
Figure 4. Cross Loading Graph for 240W Configuration
2.2.5 Efficiency General
2.2.4 Power Limit / Hazardous Energy Levels
Table 6 Typical Power Distribution for 270 W SFX12V Configurations
Figure 5 Cross Loading Graph for 270W Configuration
Table 8. Loading Table for Efficiency Measurements
Table 7 Efficiency Vs Load
Loading Required Minimum Efficiency Recommended Minimum Efficiency
Full load
2.2.7 Output Ripple/Noise
2.2.6 Other Low Power System Requirements
2.2.5.1 Energy Star
Table 9. Energy Star Input Power Consumption
Figure 6. Differential Noise Test Setup
2.2.8 Output Transient Response
Table 11. DC Output Transient Step Sizes
Maximum Step Size
2.2.9 Capacitive Load
2.2.11 +5 VDC / +3.3 VDC Power Sequencing
2.2.10 Closed-loop Stability
2.2.12 Voltage Hold-up Time
Figure 7. Power Supply Timing
2.3 Timing / Housekeeping / Control
~ ~ ~ ~
PSON#
2.3.2 PSON#
2.3.1 PWROK
Table 13. PWROK Signal Characteristics
2.3.3 +5 VSB
2.3.4 Power-on Time
Table 14. PSON# Signal Characteristics
Figure 8. PSON# Signal Characteristics
2.3.8 +5 VSB at AC Power-down
2.3.7 Reset after Shutdown
2.4 Output Protection
2.3.5 Rise Time
2.4.2 Short-circuit Protection
2.4.5 Over-temperature Protection
2.4.3 No-load Operation
2.4.4 Over Current Protection
3 Mechanical
3.2 Physical Dimensions
3.1 Labeling /Marking
Version
TFX12V Power Supply Design Guide Thin Form Factor with 12-V Connector
TFX12V Power Supply Design Guide Thin Form Factor with 12 V Connector
Figure 10. Power Supply Mounting Slot Detail
Version
3.3 Mounting Options
Figure 13. Suggested Mounting Tab chassis feature
3.4 Chassis Requirements
Figure 12. Suggested TFX12V Chassis Cutout
3.5 Airflow / Fan
3.6 AC Connector
Figure 14. TFX12V Connectors Pin-side view, not to scale
3.7 DC Connectors
Main Power Connector
3.7.2 Peripheral Connectors
3.7.1 TFX12V Main Power Connector
3.7.3 Floppy Drive Connector
Connector MOLEX* 39-01-2240 or equivalent
3.7.5 Serial ATA Power Connector
3.7.4 +12 V Power Connector
Figure 15. Serial ATA Connector
Signal
4 Environmental
4.1 Temperature
4.2 Thermal Shock Shipping
4.3 Relative Humidity
4.7 Acoustics
4.6 Random Vibration
4.8 Ecological Requirements
5.1 North America
5 Safety
5.2 International
6.1 Emissions
6 Electromagnetic Compatibility
6.2 Immunity
6.4 Magnetic Leakage Fields
6.3 Input Line Current Harmonic Content
6.5 Voltage Fluctuations and Flicker
Table 16. Harmonic Limits, Class D Equipment
8 Reliability
7 System Cooling Considerations
9 Applicable Documents
Document Title
