TEA19051BAFTK数据手册恩XP中文资料规格书

描述 Description

The TEA19051BTK is a secondary side SMPS controller that supports the followingprotocols:
USB Type-C v.1.2
USB Power Delivery (USB-PD) including Programmable Power Supply (PPS)
Battery Charging 1.2 (BC1.2)
Qualcomm® QuickChargeTM QC2.0, QC3.0, and QC4.0
Three types of the TEA19051BTK are available:TEA19051BATK for 27.5 W applications
The TEA19051BTK variants are available in an HVSON16 package.
In combination with the TEA193x primary controller and the TEA199x secondary-sideSynchronous Rectifier (SR) controller, a Switch Mode Power Supply (SMPS) can be built.
The SMPS has a small form factor and ultra-high efficiency over the entire load range.This power supply has an extremely low no-load input power (< 30 mW). It meetsefficiency requirements like CoC Tier-2, EuP lot 6, and DOE v6. The complete SMPSsystem can be built with a minimum number of external components and at low cost. TheTEA19051BTK offers a flexible platform which can be configured in the production lineof the SMPS by changing MTP settings. The complete SMPS system can be built with aminimum number of external components and at low cost.
The TEA19051BTK has a high level of digital integration. It incorporates all circuits,including a charge pump to drive an external NMOS load switch directly. It alsoincorporates a PHY protocol engine and an integrated driver for fast output discharge.The output voltage and output current are continuously measured. They are used todrive the SMPS. An NTC pin can continuously measure the adapter temperature orthe temperature in the cable/connector. Optionally, the NTC pin can also be used forother features, like supply (see Table 4). The die temperature of the TEA19051BTK ismeasured and protected via an internal temperature sensor.
The TEA19051BTK provides the best-in-class charging safety. To ensure the safeoperation of the SMPS, the IC incorporates all required protections. These protectionscover up to 19 different failure use cases (see Section 2.3).To ensure correct operation under all conditions, all protections are implemented inhardware. So, when the microcontroller stops, the protections are still functional. Theresponse of these protections can be programmed as latched or safe restart. Althoughnot recommended, these protections can also be disabled individually via the settings inthe non-volatile Multi-Time Programmable (MTP) memory.If an output short circuit occurs, the power dissipation from the mains input in the adapteris less than 50 mW.
For output voltage, current regulation, and protection, only a single optocoupler isrequired in the application.The TEA19051BTK operates in CV mode with a better than 2 % voltage accuracy. In CCmode, it operates with a better than 2 % full-load current accuracy.For evaluation and verification purposes of the firmware, an external EEPROM can beconnected. From the EEPROM, new firmware can be uploaded and executed.

特性 Features

General
• Best-in-class full safe application for high-power adapters, which protect against overload
• Wide output voltage operating range (2.9 V to 20 V)
• Ultra-high efficiency together with TEA193x QR/DCM controller and TEA199x SRcontroller
• Very low no-load power (< 30 mW for the complete system solution)
• High power density
• Dedicated SW pin to drive external NMOS directly
• Constant Voltage (CV) and Constant Current (CC) control (programmable level)
• Precise voltage and current control with low minimum step size (voltage 12-bit DAC,current 10-bit DAC)
• Continuous accurate measurement of output voltage and output current
• Low-cost HVSON16 package (suitable for reflow soldering)
• Low-cost Bill Of Materials (BOM; ≈15 external components)
• Embedded MCU (with ROM, RAM, and MTP memory)
• Discharge pin for fast discharge
• Built-in series regulator and programmable cable compensation
• Non-volatile MTP memory for storage of system confutation parameters