TPS23753A Series

IEEE 802.3-2005 PoE interface and Isolated Converter controller with Enhanced ESD Ride-Through

Catalog

IEEE 802.3-2005 PoE interface and Isolated Converter controller with Enhanced ESD Ride-Through

Part	Supplier Device Package	Standards	Voltage - Supply [Max]	Internal Switch(s)	Power - Max [Max]	Package / Case [custom]	Package / Case [custom]	Package / Case	Mounting Type	Number of Channels	Type	Current - Supply	Operating Temperature [Max]	Operating Temperature [Min]
Texas Instruments TPS23753PW	14-TSSOP	802.3af (PoE) 802.3at (PoE+)	57 V	Both	13 W	0.173 "	4.4 mm	14-TSSOP	Surface Mount	1	Controller (PD) DC/DC	580 µA	125 °C	-40 °C
Texas Instruments TPS23753PWR	14-TSSOP	802.3af (PoE) 802.3at (PoE+)	57 V	Both	13 W	0.173 "	4.4 mm	14-TSSOP	Surface Mount	1	Controller (PD) DC/DC	580 µA	125 °C	-40 °C
Texas Instruments TPS23753APW	14-TSSOP	802.3af (PoE) 802.3at (PoE+)	57 V	Both	13 W	0.173 "	4.4 mm	14-TSSOP	Surface Mount	1	Controller (PD) DC/DC	580 µA	125 °C	-40 °C
Texas Instruments TPS23753PWRG4	14-TSSOP	802.3af (PoE) 802.3at (PoE+)	57 V	Both	13 W	0.173 "	4.4 mm	14-TSSOP	Surface Mount	1	Controller (PD) DC/DC	580 µA	125 °C	-40 °C

Catalog

IEEE 802.3-2005 PoE interface and Isolated Converter controller with Enhanced ESD Ride-Through

Key Features

• Optimized for Isolated ConvertersComplete PoE InterfaceAdapter ORing Support12 V Adapter SupportProgrammable Frequency with Synch.Robust 100 V, 0.7Hotswap MOSFETSmall TSSOP 14 Package15 kV / 8 kV System Level ESD Capable–40°C to 125°C Junction Temperature RangeDesign Procedure Application Note - SLVA305Adapter ORing Application Note - SLVA306APPLICATIONSIEEE 802.3at Compliant Powered DevicesVoIP TelephonesAccess PointsSecurity CamerasOptimized for Isolated ConvertersComplete PoE InterfaceAdapter ORing Support12 V Adapter SupportProgrammable Frequency with Synch.Robust 100 V, 0.7Hotswap MOSFETSmall TSSOP 14 Package15 kV / 8 kV System Level ESD Capable–40°C to 125°C Junction Temperature RangeDesign Procedure Application Note - SLVA305Adapter ORing Application Note - SLVA306APPLICATIONSIEEE 802.3at Compliant Powered DevicesVoIP TelephonesAccess PointsSecurity Cameras

Description

The TPS23753A is a combined Power over Ethernet (PoE) powered device (PD) interface and current-mode DC-DC controller optimized specifically for isolated converter designs. The PoE implementation supports the IEEE 802.3at standard as a 13-W, type 1 PD. The requirements for an IEEE 802.3at type 1 device are a superset of IEEE 802.3-2008 (originally IEEE 802.3af). The TPS23753A supports a number of input-voltage ORing options including highest voltage, external adapter preference, and PoE preference. The PoE interface features an external detection signature pin that can also be used to disable the internal hotswap MOSFET. This allows the PoE function to be turned off. Classification can be programmed to any of the defined types with a single resistor. The DC-DC controller features a bootstrap start-up mechanism with an internal, switched current source. This provides the advantages of cycling overload fault protection without the constant power loss of a pullup resistor. The programmable oscillator may be synchronized to a higher-frequency external timing reference. The TPS23753A features improvements for uninterrupted device operation through an ESD event. The TPS23753A is a combined Power over Ethernet (PoE) powered device (PD) interface and current-mode DC-DC controller optimized specifically for isolated converter designs. The PoE implementation supports the IEEE 802.3at standard as a 13-W, type 1 PD. The requirements for an IEEE 802.3at type 1 device are a superset of IEEE 802.3-2008 (originally IEEE 802.3af). The TPS23753A supports a number of input-voltage ORing options including highest voltage, external adapter preference, and PoE preference. The PoE interface features an external detection signature pin that can also be used to disable the internal hotswap MOSFET. This allows the PoE function to be turned off. Classification can be programmed to any of the defined types with a single resistor. The DC-DC controller features a bootstrap start-up mechanism with an internal, switched current source. This provides the advantages of cycling overload fault protection without the constant power loss of a pullup resistor. The programmable oscillator may be synchronized to a higher-frequency external timing reference. The TPS23753A features improvements for uninterrupted device operation through an ESD event.