TPS65990 USB Type-C Power Delivery 控制器详解

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"TI-TPS65990是一款专为USB Type-C接口设计的电源交付管理芯片，集成了多种保护功能和控制机制。该器件适用于需要高灵活性和安全性的电源解决方案，如移动设备、笔记本电脑和其他USB Type-C兼容设备。" TI-TPS65990是德州仪器（TI）推出的一款针对USB Type-C规范的高性能电源管理集成电路，其主要功能包括CC（配置通道）和SBU（辅助电源引脚）的过电压保护、VCONN电源开关、FRS（快速角色交换）检测和拉低功能，以及符合IEC61000-4-2标准的静电放电（ESD）防护。这款芯片设计用于实现USB Power Delivery 3.0协议，支持双向电源传输，提高了充电速度和设备间的互操作性。在硬件特性方面，TI-TPS65990具有两个关键的电源路径： 1. 内部源/汇路径：能够支持最高30V的VBUS，提供高达5A的过压保护（OVP）可调电流限制（OCP）和电阻电流保护（RCP）。 2. 外部源/汇路径：同样支持30V的VBUS，但能提供高达10A的OCP可调电流限制，并包含RCP。此外，该芯片还具备以下特性： - PD3.0快角色换支持：允许设备快速地在电源供应器和消费者角色之间切换，提升了用户体验。 - CC引脚的过电压保护：确保在连接或断开USB Type-C线缆时，CC引脚不会因电压过高而受损。 - SBU过电压保护开关：提供对SBU引脚的保护，防止电压超出安全范围。 - 集成的死电池LDO（低 dropout）稳压器：在电池电量极低时仍能保持系统的稳定运行。此芯片还强调了其预生产阶段的性质，表示规格可能未最终确定，且可能会在无预警的情况下进行更改。使用者应关注产品的更新和修订，以获取最新的技术信息和警告事项。总而言之，TI-TPS65990是一款全面的USB Type-C电源管理解决方案，它集成了多种保护功能，旨在为USB Type-C设备提供安全、可靠的电源管理和快速的角色切换能力，适用于需要高效能电源管理的现代电子设备。同时，用户应当注意其预生产状态，并关注相关通知以确保使用的是最新版本的资料和技术支持。

ADVANCEINFORMATION

Host

I2C

Configuration

TPS65990

CONN

BUS

GND

C_CC1/2

5 A

3.3 V

5-20 V

CC Over-Voltage Protection

Switch, V

CONN

Power

Switch, FRS Detection and

Pull-down, IEC61000-4-2

ESD Protection

USB

Type-C

Connector

SBU1/2

3 A

10 A

5-20 V

External FET Sense and CTRL

CC1/2

SBU Over-Voltage

Protection Switch,

IEC61000-4-2 ESD

Protection

C_SBU1/2

SBU1/2

Product

Folder

Order

Now

Technical

Documents

Tools &

Software

Support &

Community

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. ADVANCE INFORMATION for pre-production products; subject to

change without notice.

TPS65990

SLVSEF3 –NOVEMBER 2017

TPS65990 USB Type-C Power Delivery 3.0 Bi-Directional Power Mux with CC and SBU

Short-to-V

BUS

Protection and Integrated Dead Battery LDO

1 Features

• 24-V Internal Source/Sink Path: V

BUS

30-V OVP,

5-A OCP Adj., RCP

• 24-V External Source/Sink Path: V

BUS

30-V OVP,

10-A OCP Adj., RCP

• PD3.0 Fast Role Swap Support

• CC1, CC2 600-mA V

CONN

power path with OCP

• Integrated Dead Battery LDO

• V

BUS

30-V Overvoltage Protection

• 4-Channels of Short-to-V

BUS

Overvoltage

Protection (CC1, CC2, SBU1, SBU2): 24V

Tolerant

• 5-Channels of IEC 61000-4-2 ESD Protection

BUS

, CC1, CC2, SBU1, SBU2)

• CC Dead Battery Resistors Integrated

• CC1, CC2 Voltage Clamping for 3.3-V tolerant PD

Controllers operation with 5-V R

pull-ups

• I

C Controller for mode selection, fast role swap,

and fault reporting

• 4-mm × 6-mm QFN Package

2 Applications

• Laptop PC

• Docking Systems

• Tablets

3 Description

The TPS65990 integrates one 24-V VBUS source

and sink capable power path, and provides control for

an external 24-V V

BUS

source and sink capable power

path. Both paths have built in 30-V overvoltage

protection and reverse current protection. The internal

path has 5-A over-current protection (OCP) and the

external path can support 10-A OCP. The device also

integrates a dead battery LDO to power itself from

VBUS during dead battery conditions, so the battery

can be charged.

A 600-mA VCONN power path is also integrated with

OCP. The CC path also integrates voltage clamping

for 3.3-V tolerant PD controllers to be able to operate

with 5 V R

pull-ups. The TPS65990 will also support

PD3.0 Fast Role Swap, providing the triggering and

detection circuitry on CC, as well as providing

vSafe5V after the role swap has occurred through the

internal VBUS path.

The TPS65990 provides 4-channels of Short-to-V

BUS

Ovevoltage Protection for the CC1, CC2, SBU1, and

SBU2 pins of the USB Type C connector. The

TPS65990 also provides 5-channels of IEC 61000-4-

2 ESD protection for the V

BUS

, CC1, CC2, SBU1,

SBU2 pins of the USB Type C connector.

Since the release of the USB Type C connector,

many products and accessories for USB Type C have

been released which do not meet the USB Type C

specification. One example of this is USB Type C

Power Delivery adaptors that start with 20 V on the

BUS

line without PD communication. Another

concern for USB Type C is the mechanical sliding of

the connector shorting pins, due to the close

proximity they have in this small connector. This

could cause 20-V VBUS to be shorted to the CC and

SBU pins. Also, due to the close proximity of the pins

in the Type C connector, there is a heightened

concern that debris and moisture could cause the 20-

V VBUS pin to be shorted to the CC and SBU pins.

These non-ideal accessories and mechanical events

are making it necessary for the CC and SBU pins to

be 20-V tolerant. However, many of the systems

implementing USB Type C today are not 20-V

tolerant. The TPS65990 solves this issue by providing

overvoltage protection on the CC and SBU pins. The

device places high voltage FETs in series on the SBU

and CC lines. When a voltage above the OVP

threshold is detected on these lines, the high voltage

switches are opened up, isolating the rest of the

system from the high voltage condition present on the

connector.

Device Information

(1)

PART NUMBER PACKAGE BODY SIZE (NOM)

TPS65990 RJK (38 pins)

4.00 mm × 6.00 mm

× 0.80 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Simplified Diagram

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