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TPS23750

Features: ` Complete 802.3af PoE Interface Features derived from the TPS2375 100 V, 0.6 W Internal Pass MOSFET Standard and Legacy UVLO Choices Fixed 140 mA Inrush Limit` Primary Side DC/DC Converter Control Minimum External Component Count Current Mode Control Isolated and Non-Isolated To...

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TPS23750: Features: ` Complete 802.3af PoE Interface Features derived from the TPS2375 100 V, 0.6 W Internal Pass MOSFET Standard and Legacy UVLO Choices Fixed 140 mA Inrush Limit` Primary Side DC/DC Con...

TPS23750 Data Sheet

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Part Number:
TPS23750
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

` Complete 802.3af PoE Interface
    Features derived from the TPS2375  
    100 V, 0.6 W Internal Pass MOSFET
    Standard and Legacy UVLO Choices
    Fixed 140 mA Inrush Limit
` Primary Side DC/DC Converter Control
    Minimum External Component Count
    Current Mode Control
    Isolated and Non-Isolated Topologies
    Programmable Operating Frequency
    Current Sense Leading-edge Blanking
    50% Duty Cycle Limiting
    Voltage Output Error Amplifier
` Internal PoE and Converter Sequencing
` Industry-Standard 20 Lead Package
` Industrial Temperature Range: 40°C to 85°C


Application

` All PoE PD Devices Including:
    Wireless Access Points
    VoIP Phones
    Security Cameras




Specifications

 
UNIT
    Input voltage range(2)
 RSN, COM, RTN, SEN
0.7 V to 100 V
Input voltage range
 AUX, VDD, DET, SENP
0.3 V to 100 V
    Input voltage range(3)
 [VBIAS, BL, TMR, FB, COMP, FREQ, RSP, MODE] to RTN
0.3 V to 6.5 V
Input voltage range
 [GATE or AUX] to COM
0.3 V to 20 V
Input voltage range
 [RSN to RTN] and [COM to RTN]
0.3 V to 0.3 V
SENP to SEN
0.3 V to 100 V
    Input voltage range(3)
 CLASS
0.3 V to 12 V
Sourcing current
 AUX
Internally limited
VBIAS                        Sourcing current
Internally limited
                                Sourcing or sinking current, COMP
Internally limited
                                 Average sourcing or sinking current, GATE
25 mArms
                                HBM ESD rating
2 kV
                                ESD system level (contact/air) at RJ-45 (4)
8 kV / 15 kV
                                Continuous total power dissipation
See Dissipation Rating Table
TJ                             Maximum operating junction temperature
Internally limited
Tstg                         Storage temperature range
65to 150
                               Lead temperature 1.6mm (1/16-inch) from case for 10 seconds
260



Description

The TPS23750 integrates the functionality of the TPS2375 with a primary-side dc/dc PWM controller The designer can create a front-end solution for PoE-PD applications with minimum external components. The TPS23770 is identical to the TPS23750 with the exception of the undervoltage lockout turn-on voltage, which is compatible with legacy systems.

The PoE front end has all the necessary IEEE 802.3af functions including detection, classification undervoltage lockout and inrush control. The PoE input switch is integrated within the TPS23750.

The dc/dc controller section is designed to support flyback, forward, and nonsynchronous low-side switch buck topologies.

The external switching MOSFET and current sense resistor provide flexibility in topology, power level, and current limit. The TPS23750 full-featured dc/dc controller includes programmable soft start, hiccup type fault limiting, 50% maximum duty cycle, programmable constant switching frequency, and a true voltage-output error amplifier. Additional protection features provide for robust designs




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