SI3480-A01-GM Silicon Laboratories Inc, SI3480-A01-GM Datasheet
SI3480-A01-GM
Specifications of SI3480-A01-GM
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SI3480-A01-GM Summary of contents
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... The Si3480 also provides LED drive to indicate port status and drive an LED bar graph display to indicate the power supply capacity in use port is denied power due to power supply capacity limitations, the LED ...
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... Si3480 Functional Block Diagram Configuration Pins Power Provided Port Power Port Priority Detection Timing 2 Si3480 Power Management Controller Power Port Meter Status LEDs LEDs Rev. 1.0 Si3452 PoE Controllers ...
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... LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 4.1. Start-Up LED Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 4.2. Port Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 4.3. Power Meter LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 5. Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 6. Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 7. Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 8. Landing Pattern: 20-Pin QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 9. Top Marking: 20-Pin QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Document Change List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Rev. 1.0 Si3480 Page 3 ...
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... Si3480 1. Electrical Specifications Table 1. Recommended Operating Conditions Description Symbol Operating Temperature T A Range V Supply Voltage LED Current I LED Table 2. Absolute Maximum Ratings Parameter Ambient Temperature under Bias Storage Temperature Voltage on any I/O with respect to GND Voltage on V with respect to GND DD Maximum Total LED Current ...
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... PUSHBUTTON PUSHBUTTON SW SW 10K 10K SW1 SW1 R100 R100 GND VDD +3V3 3 R117 R117 R116 R116 R113 R113 R112 R112 R115 R115 R114 R114 -52V -52V -52V -52V_RTN LED_4_8 LED_3_7 LED_2_6 LED_1_5 Bank 2 LED_4_8 LED_3_7 LED_2_6 LED_1_5 Bank Rev. 1.0 Si3480 5 ...
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... DD 3.1.4. Pin ALTCFG The Si3480 can be set to put the Si3452 parts in either Alternative A or Alternative B timing mode. Alternative A is used when the power is applied to wire pairs 1,2 and 3,6. Alternative B is used when the power is applied to wire pairs 4,5 and 7,8. Timing between detection pulses is less than 0.5 s for Alternative A and greater than two seconds for Alternative B ...
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... LEDs Upon power application or reset (by SW1 in the upper left corner), the Si3480 probes to see whether there are one or two Si3452 ICs connected ( ports). The Si3480 then controls the LED display in the start-up sequence described and automatically starts managing the power among the ports as determined by the configuration pins. ...
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... Table 6. Si3480 Pin Descriptions Pin Function Ground. VDD. Reset (a low will reset the Si3480). Do not connect to this pin. Pins LED1–LED4 work with Pin LEDBANK to drive the eight power meter LEDs. Pins LED5 – LED8 work with Pin LEDBANK to drive the eight port status LEDs. Low is Alternative A timing, High is Alternative B timing. See " ...
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... Si3452 controllers and the Si3500 for generating Notes: 1. Add “R” to the part number to denote tape and reel option (Si3480-A01-GMR) 2. The ordering part number is not the same as the device mark. See “9. Top Marking: 20-Pin QFN” for device marking information. ...
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... Si3480 7. Package Outline Figure 2 illustrates the package details for the Si3480. Table 7 lists the values for the dimensions shown in the illustration. Table 7. QFN-20 Package Dimensions Dimension Min A 0.80 A1 0.00 b 0.18 D 4.00 BSC. D2 2.00 e 0.50 BSC. E 4.00 BSC. E2 2.00 Notes: 1. All dimensions shown are in millimeters (mm) unless otherwise noted. ...
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... Landing Pattern: 20-Pin QFN Figure 3 illustrates the landing pattern for the Si3480. Table 8 lists the values for the dimensions shown in the illustration. Figure 3. QFN-20 Recommended PCB Land Pattern Table 8. QFN-20 PCB Land Pattern Dimensions Dimension Min 0.20 Notes: General 1. All dimensions shown are in millimeters (mm) unless otherwise noted. ...
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... Si3480 9. Top Marking: 20-Pin QFN Figure 4 illustrates the top markings for the Si3480. Table 9 explains the values for the markings shown in the illustration. Line 1 Marking: Line 2 Marking: Line 3 Marking: Line 4 Marking: 12 3480A 01 TTTTT YYWW+ Figure 4. Si3480 Top Marking Table 9. Top Marking Explanations ...
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... OCUMENT HANGE IST Revision 0.1 to Revision 1.0 Updated Table 3 Updated typical output low, typical output high, and sense accuracy. Updated pin description. Rev. 1.0 Si3480 13 ...
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... Si3480 C I ONTACT NFORMATION Silicon Laboratories Inc. 400 West Cesar Chavez Austin, TX 78701 Tel: 1+(512) 416-8500 Fax: 1+(512) 416-9669 Toll Free: 1+(877) 444-3032 Please visit the Silicon Labs Technical Support web page: https://www.silabs.com/support/pages/contacttechnicalsupport.aspx and register to submit a technical support request. The information in this document is believed to be accurate in all respects at the time of publication but is subject to change without notice. ...