Digchip : Database on electronics components
Electronics components database



Details, datasheet, quote on part number: TPS23750
 
 
Part numberTPS23750
CategoryPower Management => Power Distribution/Switches => Hot-Swap Controllers
DescriptionIntegrated 100-V IEEE 802.3af PD and DC/DC Controller
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 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.

Complete 802.3af PoE Interface
Features derived from the TPS2375
100 V, 0.6 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
APPLICATIONS
All PoE PD Devices Including:
Wireless Access Points
VoIP Phones
Security Cameras
PowerPAD is a trademark of Texas Instruments.
CompanyTexas Instruments, Inc.
DatasheetDownload TPS23750 datasheet
Request For QuoteFind where to buy TPS23750
 


 
Specifications, Features, Applications

FEATURES

· Complete 802.3af PoE Interface ­ Features derived from the V, 0.6 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: to 85°C

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 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.

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

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.

(1) (2) UVLO THRESHOLDS TYPE Standard Legacy LOW 30.5 V HIGH 35.1 V PACKAGE (2) TSSOP-20 PowerPADTM TPS23750PWP TPS23770PWP MARKING TPS23750 TPS23770

Add an R suffix to the device type for tape and reel. For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI Web site at www.ti.com.

over operating free-air temperature range and with respect to VSS unless otherwise noted (1)

UNIT Input voltage range (2) Input voltage range Input voltage range (3) Input voltage range Input voltage range Input voltage range (3) Sourcing current VBIAS Sourcing current Sourcing or sinking current, COMP Average sourcing or sinking current, GATE HBM ESD rating ESD ­ system level (contact/air) at RJ-45 Continuous total power dissipation TJ Tstg Maximum operating junction temperature Storage temperature range Lead temperature 1.6mm (1/16-inch) from case for 10 seconds

RSN, COM, RTN, SEN AUX, VDD, DET, SENP [VBIAS, BL, TMR, FB, COMP, FREQ, RSP, MODE] to RTN [GATE or AUX] to COM [RSN to RTN] and [COM to RTN] SENP to SEN CLASS AUX

12 V Internally limited Internally limited Internally limited 25 mArms 15 kV See Dissipation Rating Table Internally limited 150°C 260°C

Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. IRTN = 0 for VRTN 80 V. Maximum IRTN V. Do not apply external voltage sources to CLASS, DET, GATE, FREQ, VBIAS, and TMR. Surges applied RJ-45 of Figure 40 between pins of RJ-45, and between pins and output voltage rails per EN61000-4-2, 1999 with no device failure.

All voltage values are with respect to VSS unless otherwise noted.

MIN VDD Input voltage range (3) Input voltage range COM, SEN, SENP FB, COMP, MODE, BL AUX to COM RSP to RSN AUX Sourcing current QG GATE loading AUX load capacitance VBIAS load capacitance RFREQ (2) (3) Operating junction temperature range Operating ambient temperature range VBIAS COMP NOM MAX 67 VBIAS mA V UNIT V

RSN, COM, and RTN should be tied together. SENP should be tied to VDD except for the buck configuration, where it should be tied to the output positive rail. TMR, FREQ, CLASS, DET, VBIAS, and GATE should not be externally driven. Junction temperature may be a constraining factor for high bias power designs.

PACKAGE PWP (TSSOP-20) JP °C/W 1.4 JC °C/W 26.62 JA °C/W 32.6 JA °C/W 151.9 JA °C/W (4) 73.8 MAXIMUM POWER RATING (W) (5) 1.2

Thermal resistance junction to pad. See TI document SLMA002 for recommended layout. This is a best case, zero airflow number. JEDEC method with low-k board (2 signal layers) and power pad not soldered (worst case). JEDEC method with high-k board (4 layers, 2 signal and 2 planes) and power pad not soldered. Based on TI recommended layout and 85°C ambient.




Related products with the same datasheet
TPS23750PWP   TPS23750PWPG4   TPS23750PWPR   TPS23750PWPRG4  


Some Part number from the same manufacture Texas Instruments, Inc.
TPS23750PWP Integrated 100-V IEEE 802.3af PD and DC/DC Controller 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
TNETC460x High-Performance Single-Chip DOCSIS® 2.0 Cable Modem Chip
ADS5444 13-Bit 250 MSPS Analog-to-Digital Converter The ADS5444 is a 13-bit 250 MSPS analog-to-digital converter (ADC) that operates from a 5 V supply, while providing LVDS-compatible digital outputs from a 3.3 V supply.
ADS1610 16-Bit, 10MSPS ADC The ADS1610 is a high-speed, high-precision, deltasigma (∆Ó) analog-to-digital converter (ADC) with 16-bit resolution operating from a +5V analog and a +3V digital supply.
MSP430F2013 16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 128B RAM, 16-Bit Sigma-Delta A/D, USI for SPI/I2C The Texas Instruments MSP430 family of ultralow power microcontrollers consist of several devices featuring
MSP430F2001 16-bit Ultra-Low-Power Microcontroller, 1kB Flash, 128B RAM, Comparator The Texas Instruments MSP430 family of ultralow power microcontrollers consist of several devices featuring different sets of peripherals
MSP430F2002 16-bit Ultra-Low-Power Microcontroller, 1kB Flash, 128B RAM, 10-Bit SAR A/D, USI for SPI/I2C The Texas Instruments MSP430 family of ultralow power microcontrollers consist of several devices featuring
MSP430F2003 16-bit Ultra-Low-Power Microcontroller, 1kB Flash, 128B RAM, 16-Bit Sigma-Delta A/D, USI for SPI/I2C The Texas Instruments MSP430 family of ultralow power microcontrollers consist of several devices
MSP430F2011 16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 128B RAM, Comparator The Texas Instruments MSP430 family of ultralow power microcontrollers consist of several devices featuring different sets of peripherals
MSP430F2012 16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 128B RAM, 10-Bit SAR A/D, USI for SPI/I2C The Texas Instruments MSP430 family of ultralow power microcontrollers consist of several devices featuring
TPS65800 Integrated Single-Cell Lithium-Ion Battery and Power Management IC The TPS65800 is designed to provide, in a single monolithic IC, flexible charge and system power-path management for a USB-port and AC-adapter
SN65LVDS20 4-Gbps PECL to LVDS Translator The SN65LVDS20 and SN65LVP20 are a high-speed differential receiver and driver connected as a repeater. The receiver accepts low-voltage positive-emitter-coupled logic (PECL)
ADS5545 14 Bits 170MSPS ADC With LVDS/CMOS Outputs The ADS5545 is a high performance 14-bit 170-MSPS ADC. Using an internal sample and hold and low jitter clock buffer this ADC supports high SNR and high SFDR
TPS65020 Power Management IC for Li-Ion Powered Systems The TPS65020 is an integrated Power Management IC for applications powered by one Li-Ion or Li-Polymer cell, and which require multiple power rails. The TPS65020
INA159 High-Speed, Precision, Gain of 0.2 Level Translation Difference Amplifier The INA159 is a high slew rate, G = 1/5 difference amplifier consisting of a precision op amp with a precision resistor network.
SN74LV4320A Low-Power, Dual Supply, Level Translating CompactFlash Interface With 16-Bit Data, 11-Bit Address This CompactFlash™ (CF) interface chip is designed to provide a single-chip solution for CF card interfaces.
TPS61059 Synchronous Boost Converter With Down Mode High Power White LED Driver The TPS61058/9 devices are fixed frequency, synchronous boost dc-dc converters with an inte- grated down conversion mode. The devices
BUF602 High Speed, Closed Loop Buffer The BUF602 is a closed-loop buffer recommended for a wide range of applications. Its wide bandwidth (1000MHz) and high slew rate (8000V/µs) make it ideal for buffering very
INA159 High-Speed, Precision Gain of 0.2 Level Translation Difference Amplifier The INA159 is a high slew rate, G = 1/5 difference amplifier consisting of a precision op amp with a precision resistor network.
LMV822-Q1 Automotive Catalog Dual, Low-Voltage, RRO Operational Amplifiers The LMV821 single, LMV822 dual, and LMV824 quad devices are low-voltage (2.5 V to 5.5 V), low-power commodity operational amplifiers.
LP2901-Q1 Automotive Catalog Quad, Low-Power, General-Purpose Differential Comparator Number of Channels 4 Output Current(Min)(mA) 20 Output Type Open Collector,Open Drain VIO (25 deg C)(Max)(mV) 5 Pin/Package