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Introduction

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SLVUBC9 – December 2017

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Copyright © 2017, Texas Instruments Incorporated

TPS23523EVM-863 Evaluation Module

1.2

Applications

This EVM is used in the following applications:

Wireless infrastructure

Telecom infrastructure

–48-V interface

1.3

Electrical Specifications

Table 1

lists the TPS23523 electrical and performance specifications at 25°C.

Table 1. TPS23523 Electrical and Performance Specifications at 25°C

Characteristic

TPS23523EVM-PWR863

Input voltage range (recommended)

38 V to 60 V

Input voltage range (absolute maximum)

0 V to 150 V

Load power

400 W

Load output capacitance

500 µF

Current limit (normal)

12.5 A

Current limit (high FET V

DS

)

1.5 A

Typical inrush current

0.4 A

Hot-Swap FET V

DS

when current transitions from high to low

20.2 V

Time out (V

DS,HS

< 10 V)

2.25 ms

Time out (10 V < V

DS,HS

< 20 V)

1.12 ms

Time out (V

DS,HS

> 20 V)

0.23 ms

Undervoltage threshold (rising)

36.6 V

Undervoltage threshold (falling)

34.6 V

Overvoltage (OV) threshold (rising)

64.4 V

Overvoltage threshold (falling)

61.4 V

Summary of Contents for TPS23523EVM-863

Page 1: ...l of Materials 16 List of Figures 1 TPS23523 863 Typical Configuration 3 2 TPS23523 863 Advanced Configuration 3 3 TPS23523EVM 863 Schematic 5 4 Start Up VIN 54 V 7 5 Start Up VIN 54 V 7 6 Start Up VI...

Page 2: ...ademarks are the property of their respective owners 1 Introduction The TPS23523 EVM is meant to give a jump start to anyone designing a 48 V system with a single supply that needs to support supply d...

Page 3: ...a common 48 V input that is used to power both the load on the board and the mid plane The ORing and current monitoring is performed on the 48 V input Then the hot swap function is performed on just t...

Page 4: ...al and Performance Specifications at 25 C Characteristic TPS23523EVM PWR863 Input voltage range recommended 38 V to 60 V Input voltage range absolute maximum 0 V to 150 V Load power 400 W Load output...

Page 5: ...lability and Table 4 describes the default jumper configuration Table 2 Connector Functionality Connector Label Description J1 J2 RTN Power bus input tie the high side of the power supply inputs and o...

Page 6: ...utput for load TP19 SNS Negative side of Rsns TP20 SNS Positive side of Rsns TP21 VCC_EXT External bias voltage TP22 VCC1 VCC from external connector J9 to DC DC TP23 VCC2 VCC between INA226 telemetry...

Page 7: ...ead from the power supply to J4 Neg48V 6 Make sure all voltmeter and oscilloscope GNDs are tied to VEE 7 Turn the power supplies on 3 3 Scope Considerations Observe the following scope considerations...

Page 8: ...6 Start Up VIN 38 V No load scope GND 48V_A Figure 7 Start Up VIN 60 V VINA 54 V VINB 54 V no load scope GND RTN Figure 8 Hot Plug Channel A and B Together VINA 54 5 V VINB 54 V no load scope GND RTN...

Page 9: ...ad 5 A Figure 12 Hot Plug A after B VINA 54 5 V VINB 54 V scope GND RTN no load Figure 13 Hot Plug A after B Scope GND 48V_B no load after inductor Figure 14 Output Hot Short VINB 54 V Scope GND 48V_B...

Page 10: ...Module Scope GND 48V_B 5 A load zoomed in Figure 18 Output Hot Short VINB 60 V Scope GND 48V_A Figure 19 Gradual Over Current VINA 54 V Scope GND 48V_A Figure 20 Load Step Overcurrent Scope GND 48V_A...

Page 11: ...load 5 A Figure 24 1 ms Brown Out Scope GND 48V_A Iload 5 A Figure 25 1 ms Brown Out VINB 53 V Iload 5 A scope GND RTN Figure 26 Supply Switch Over Raise VINA VINB 53 V raise VINA scope GND RTN Iload...

Page 12: ...4 5 V VINB 54 V Iload 5 A scope GND RTN Figure 30 Unplug VINA VINB 60 V Figure 31 Plug in VINA Backwards VINB floating Figure 32 Plug in VINA Backwards Scope GND 48V_A no load Figure 33 Undervoltage a...

Page 13: ...r IEC61000 4 5 Figure 36 2 kV 2 Lightning Surge Zoomed in Scope GND RTN 5 A load Per IEC61000 4 5 Figure 37 2 kV 2 Lightning Surge Zoomed in Scope GND RTN 5 A load Per IEC61000 4 5 Figure 38 2 kV 2 Li...

Page 14: ...D 48V_A Figure 43 Load Step Into Overcurrent Lin 20 H scope GND 48V_A Figure 44 Start Into Short Lin 20 H scope GND 48V_A Figure 45 1 ms Brown Out The TPS23523 EVM Measured Voltage Monitoring Accuracy...

Page 15: ...which is before the RC filter going into the IC The results show that the sense resistor is responsible for the majority of the error and roughly equals 2 Note that on this PCB a simple two terminal...

Page 16: ...0603 0603 C0603C104K8RACTU Kemet C22 1 1uF CAP CERM 1 F 10 V 80 20 Y5V 0603 0603 C0603C105Z8VACTU Kemet D1 1 150V Diode Schottky 150 V 1 A SMA SMA STPS1150A STMicroelectroni cs D2 1 100V Diode Switch...

Page 17: ...Vishay Dale R16 1 5 62k RES 5 62 k 1 0 1 W 0603 0603 CRCW06035K62FKEA Vishay Dale R17 R27 R28 3 10 0 RES 10 0 1 0 1 W 0603 0603 CRCW060310R0FKEA Vishay Dale R20 1 0 001 RES 0 001 1 1 W 2512 2512 ERJ M...

Page 18: ...uden C14 0 0 01uF CAP CERM 0 01 F 50 V 5 X7R 0603 0603 C0603C103J5RACTU Kemet C15 0 0 1uF CAP CERM 0 1uF 16V 5 X7R 0603 0603 0603YC104JAT2A AVX C19 0 0 01uF CAP CERM 0 01 F 25 V 10 X7R 0603 0603 GRM18...

Page 19: ...set forth above or credit User s account for such EVM TI s liability under this warranty shall be limited to EVMs that are returned during the warranty period to the address designated by TI and that...

Page 20: ...the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain great...

Page 21: ...t the EVM user guide prior to connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation even with the...

Page 22: ...OST OF REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF...

Page 23: ...TI Resource NO OTHER LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD...

Page 24: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments TPS23523EVM 863...

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