TEA1903T数据手册恩XP中文资料规格书

描述 Description

The TEA1903 is a USB Power Delivery (USB-PD) type-C controller with a high integration
\t\t\tlevel and near fully digital implementation. The high integration level ensures a
\t\t\tsecondary side solution with a bear minimum of external components. The TEA1903 USB-PD
\t\t\tcontroller drives an NMOS load switch. It achieves a very high power density Switching
\t\t\tMode Power Supply (SMPS) with an ultra-high efficiency over the entire load range. When
\t\t\tapplied in combination with the NXP® Semiconductors primary controller, TEA1936T, it
\t\t\tmeets the CoC Tier-2, EuP lot 6, and DOE v6 energy efficiency requirement
\t\t\tspecifications.

In addition to the power control and required protections, the TEA1903 incorporates the
\t\t\tfull feature set of the type C USB-PD protocol that is required for an AC-to-DC SMPS
\t\t\tadapter.

The SW pin is used to drive an external load switch (NMOS), which enables/disables the
\t\t\tpower over VBUS. When the output voltage is reduced or the type-C cable is detached, the
\t\t\tDISCH pin ensures that the output voltage discharges in a controlled way to the voltage
\t\t\tlevel required by the USB-PD protocol.

The TEA1903 incorporates all required protections, like OverTemperature Protection (OTP),
\t\t\tadaptive OverVoltage Protection (OVP), Short Circuit Protection (SCP), and UnderVoltage
\t\t\tLockOut (UVLO).

特性 Features

General



\t\t\t\t\t\tHigh integration level (only requires an external line switch and SR
\t\t\t\t\t\t\tdiode or controller)
\t\t\t\t\t


\t\t\t\t\t\tNMOS load switch without external winding
\t\t\t\t\t


\t\t\t\t\t\tFault handling at secondary side without second optocoupler
\t\t\t\t\t


\t\t\t\t\t\tLow-cost SO10 package (suitable for both reflow soldering and wave
\t\t\t\t\t\t\tsoldering)
\t\t\t\t\t


\t\t\t\t\t\tLow-cost Bill Of Materials (BOM; ≈15 external components)
\t\t\t\t\t


\t\t\t\t\t\tVery low no-load power (< 25 mW for the complete system solution)
\t\t\t\t\t


\t\t\t\t\t\tHigh power density
\t\t\t\t\t


\t\t\t\t\t\tUltra-high efficiency
\t\t\t\t\t




Protocol support


\t\t\t\t\tUSB-PD type C compliance for BMC communication
\t\t\t\t


\t\t\t\t\tOther proprietary protocol support is feasible
\t\t\t\t


\t\t\t\t\tEmbedded MCU (with ROM, RAM, and MTP memory)
\t\t\t\t


\t\t\t\t\tBuilt-in digital core supports flexible VDM messaging
\t\t\t\t


\t\t\t\t\tProgrammable type C current mode setting
\t\t\t\t


\t\t\t\t\tCV and CC control (4-level programmable)
\t\t\t\t


\t\t\t\t\tDischarge pin for fast discharge
\t\t\t\t


\t\t\t\t\tBuilt-in series regulator and programmable cable compensation
\t\t\t\t


\t\t\t\t\tWide VCC operation range (3.2 V to 20 V)
\t\t\t\t


\t\t\t\t\tSW pin to drive external isolation N-MOSFET directly
\t\t\t\t


Protections


\t\t\t\t\tOverTemperature Protection (OTP)
\t\t\t\t


\t\t\t\t\tOverVoltage Protection (OVP)
\t\t\t\t


\t\t\t\t\tOverCurrent Protection (OCP)
\t\t\t\t


\t\t\t\t\tShort Circuit Protection (SCP)
\t\t\t\t


\t\t\t\t\tUnderVoltage LockOut (UVLO) protection
\t\t\t\t


\t\t\t\t\tOpen ground protection
\t\t\t\t


\t\t\t\t\tVCC to SW short protection
\t\t\t\t


\t\t\t\t\tOpen VCC detection
\t\t\t\t


\t\t\t\t\tCC1/CC2 to Vout short protection
\t\t\t\t

应用 Application

\t\t\t\tUSB PD type C chargers for smartphones and tablets
\t\t\t


\t\t\t\tUSB PD type C adapters for ultrabooks and notebooks
\t\t\t


\t\t\t\tUSB PD type C power supply for other portable devices
\t\t\t