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TPS23730RMTR +BOM

IEEE 802.3bt type-3 class 1-6 PoE 2 PD with high efficiency DC-DC controller

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

TPS23730RMTR
Datasheet:

TPS23730RMTR Datasheet (PDF)
Type:

Controller (PD), DC/DC
Number of Channels:

1
Power - Max:

60 W
Internal Switch(s):

Yes
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TPS23730RMTR General Description

The TPS23730 device combines a Power over Ethernet (PoE) powered device (PD) interface, and a current-mode DC-DC controller optimized for flyback and active clamp forward (ACF) switching regulator designs . In the case of flyback configuration, the use of primary-side regulation (PSR) is supported. The PoE interface supports the IEEE 802.3bt standard for applications needing up to 51 W or less at PD input.

Programmable spread spectrum frequency dithering (SSFD) is provided to minimize the size and cost of EMI filter. Advanced Startup with adjustable soft-start helps to use minimal bias capacitor while simplifying converter startup and hiccup design, also ensuring that IEEE 802.3bt startup requirements are met.

The soft-stop feature minimizes stress on switching power FETs , allowing FET BOM cost reduction.

The PSR feature of the DC-DC controller uses feedback from an auxiliary winding for control of the output voltage, eliminating the need for external shunt regulator and optocoupler. It is optimized for continuous conduction mode (CCM), and can work with secondary side synchronous rectification, resulting in optimum efficiency, regulation accuracy and step load response over multiple outputs.

The DC-DC controller features slope compensation and blanking. Typical switching frequency is 250 kHz.

The automatic MPS enables applications with low power modes or multiple power feeds. It automatically adjusts its pulsed current amplitude and duration according to PSE Type and system conditions, to maintain power while minimizing consumption.

Key Features

Complete IEEE 802.3bt Type 3 (Class 1-6) PoE PD Solution
- EA Gen 2 logo-ready (PoE 2 PD Controller)
- Robust 100-V, 0.3-Ω (typ) Hotswap MOSFET
- Supports power levels for up to 60-W operation
- Allocated power indicator outputs - parallel or serial encoding selectable
Integrated PWM controller for flyback or Active Clamp Forward configuration
- Flyback control with primary-side regulation
  - Supports CCM operation
  - ±1.5% (typ, 5-V output) load regulation (0-100% load range) — with Sync FET
- Also supports secondary-side regulation
- Soft-start control with advanced startup and hiccup mode overload protection
- Soft-stop shutdown
- Adjustable frequency with synchronization
- Programmable frequency dithering for EMI
Automatic Maintain Power Signature (MPS)
- Auto-adjust to PSE type and load current with auto-stretch
Primary adapter priority input
–40°C to 125°C junction temperature range

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Power Over Ethernet (PoE) Controllers	Series	-
Type	Controller (PD), DC/DC	Number of Channels	1
Power - Max	60 W	Internal Switch(s)	Yes
Auxiliary Sense	Yes	Standards	802.3at (PoE+), 802.3bt
Voltage - Supply	0V ~ 60V	Current - Supply	20mA
Operating Temperature	-40°C ~ 125°C (TJ)	Mounting Type	Surface Mount
Base Product Number	TPS23730	Vin (min) (V)	10.2
Vin (max) (V)	60	PoE current limit (min) (mA)	1550
PoE inrush limit (mA) (typ) (A)	0.14	rDS(on) per FET (typ) (mΩ)	300
PoE standards supported	802.3at Type 1 (802.3af), 802.3at Type 2, 802.3bt Type 3	PD power level	13W, 25W, 51W
DC/DC control	PD and DC/DC	Fault response	Auto Retry
Features	Adapter priority, Advanced startup, Automatic MPS, Error amplifier, Inrush delay, Primary-side adapter priority, Primary-side regulation, Second Gate Drive, Spread-spectrum frequency dithering, Thermal shutdown	Operating temperature range (°C)	-40 to 125
Rating	Catalog	feature-type
feature-standard-supported	IEEE802.3af/IEEE802.3at/IEEE802.3bt	feature-process-technology
feature-minimum-input-voltage-v	10.2	feature-maximum-input-voltage-v	60
feature-maximum-current-limit-ma		feature-typical-inrush-current-ma
feature-inrush-resistance-kohm		feature-maximum-output-power-w
feature-maximum-oscillating-frequency-hz		feature-maximum-duty-cycle-
feature-programmability		feature-packaging
feature-pin-count	45	feature-cecc-qualified
feature-esd-protection	Yes	feature-military	No
feature-aec-qualified	No	feature-auto-motive	No
feature-p-pap	No	feature-eccn-code	EAR99
feature-svhc	No	feature-svhc-exceeds-threshold	No

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Ratings and Reviews

N**s 04/05/2022

Maximum satisfaction.High-quality fulfilment.Delivery Term: 18 calendar daysHigh-quality packed.May I recommend.Martin

S**n 09/10/2021

Chips came in a small bag. Already soldered one into the speed controller, everything works fine. Chips working, thanks to the seller for the work and quality goods.

J**n 05/25/2021

Good quality diodes. The seller is responsible. Received the goods on time. In working order.