TPS65994AD：USB4和USB PD双端控制器，支持USB4和Thunderbolt 4设计

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TI-TPS65994AD是一款先进的USB Type-C和USB PD控制器，专为高性能设备设计，具备了多个关键特性。这款产品由USB-IF认证，支持PD3.0规范，确保新设计的USB Power Delivery（PD）方案符合行业标准。TID#3495的文章对比了PD2.0与PD3.0的区别，显示出TPS65994AD在技术升级中的优势。作为一款全配置的双端口USB 4和Thunderbolt 4 (TBT4) PD 3.0控制器，TPS65994A适用于广泛的USB 4主机和设备设计，特别适合那些对高速数据传输和电源管理有高要求的应用。它具有宽泛的工业温度范围，使得设备能在严苛环境下稳定工作。该器件配备了一个直观的图形用户界面（GUI），便于设计师针对不同的应用场景轻松配置，这显著简化了产品的集成和调试过程。除了基本功能外，TPS65994A还支持Display Port源、Thunderbolt和用户可配置的备用模式，提供高度灵活性。值得注意的是，TPS65994A内置了两个集成的、5V、3A、电阻仅为38毫欧姆的高效源开关，这些开关经过UL2367和IEC62368-1的安全认证，如UL2367认证号E169910和IEC62368-1认证号US-34737-M3-UL，确保了电源路径的安全性和稳定性。此外，该控制器还集成了一套强大的电源路径保护机制，包括过电压保护、欠电压保护、反向电流保护以及可调电流限制，为源路径提供了全面的保护，以防止潜在的硬件损坏。这样的设计充分考虑了设备在各种复杂工作条件下可能遇到的挑战。对于更详尽的产品选择指南和入门信息，用户可以直接访问TI的官方网站www.ti.com/usb-candE2Eguide，那里会有更多的技术文档、示例设计和应用支持。TPS65994AD是一款强大而灵活的解决方案，能帮助开发者构建出兼容性好、性能卓越的USB Type-C和USB PD应用设备。

6.11 CC Cable Detection Parameters (continued)

Operating under these conditions unless otherwise noted: 3.0 V ≤ V

VIN_3V3

≤ 3.6 V

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Rev

Unattached reverse current on

Px_CCy

= 5.5V, V

Px_CCx

= 0V,

LDO_3V3_UVLO

< V

LDO_3V3

< 3.6

V, V

PP5V

= 3.8 V , measure current

into Px_CCy

µA

Px_CCy

= 5.5V, V

Px_CCx

= 0V,

LDO_3V3_UVLO

< V

LDO_3V3

< 3.6

V, V

PP5V

= 0, -10

C≤T

≤85

measure current into Px_CCy

RpDef

current source - USB Default

0 < V

Px_CCy

< 1.0 V, measure

Px_CCy

64 80 96 µA

Rp1.5

current source - 1.5A

4.75 V < V

PP5V

< 5.5 V, 0 <

Px_CCy

< 1.5 V, measure I

Px_CCy

166 180 194 µA

Rp3.0

current source - 3.0A

4.75 V < V

PP5V

< 5.5 V, 0 <

Px_CCy

< 2.45 V, measure I

Px_CCy

304 330 356 µA

Type-C Sink (Rd pull-down)

SNK1

Open/Default detection threshold

when Rd applied to Px_CCy

rising 0.2 0.24 V

Open/Default detection threshold

when Rd applied to Px_CCy

falling 0.16 0.20 V

hysteresis 0.04 V

SNK2

Default/1.5A detection threshold falling 0.62 0.68 V

Default/1.5A detection threshold rising 0.63 0.66 0.69 V

hysteresis 0.01 V

SNK3

1.5A/3.0A detection threshold

when Rd applied to Px_CCy

falling 1.17 1.25 V

1.5A/3.0A detection threshold

when Rd applied to Px_CCy

rising 1.22 1.3 V

hysteresis 0.05 V

SNK

Rd pulldown resistance

0.25 V ≤ V

Px_CCy

≤ 2.1 V, measure

resistance on Px_CCy

4.1 6.1 kΩ

VCONN_DIS

VCONN discharge resistance

0V ≤ V

Px_CCy

≤ 5.5 V, measure

resistance on Px_CCy

4.1 6.1 kΩ

CLAMP

Dead battery Rd clamp

VIN_3V3

=0V, 64 µA < I

Px_CCy

<96

µA

0.25 1.32

VIN_3V3

=0V, 166 µA <

Px_CCy

<194 µA

0.65 1.32

VIN_3V3

=0V, 304 µA < I

Px_CCy

356 µA

1.20 2.18

Open

resistance from Px_CCy to GND

when configured as open.

Px_VBUS

= 0, V

VIN_3V3

=3.3V,

Px_CCy

=5 V, measure resistance

on Px_CCy

500 kΩ

Px_VBUS

= 5V, V

VIN_3V3

= 0,

Px_CCy

=5 V, measure resistance

on Px_CCy

500 kΩ

FRS

Fast Role swap request voltage

detection threshold on Px_CCy

(falling)

495 515 535 mV

FRS

hysteresis 0.01 V

FRS_DET

Fast role swap signal detection

time

Px_CCy

must be below V

FRS

for

at least this long before the FRS

signal is detected

30 35 µs

FRS_Resp

response time of the Fast role

swap comparator (rising)

Px_CCy

rises from 0.24V to 0.64V 0.6 µs

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TPS65994AD

SLVSFM6A – AUGUST 2020 – REVISED JULY 2021

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6.11 CC Cable Detection Parameters (continued)

Operating under these conditions unless otherwise noted: 3.0 V ≤ V

VIN_3V3

≤ 3.6 V

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Common (Source and Sink)

deglitch time for comparators on

Px_CCy

3.2 ms

6.12 CC VCONN Parameters

Operating under these conditions unless otherwise noted: 3.0 V ≤ V

VIN_3V3

≤ 3.6 V

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

PP_CABLE

Rdson of the VCONN path

PP5V

=5V, I

= 250 mA,

measure resistance from PP5V

to Px_CCy

0.4 0.7 Ω

LIMVC

short circuit current limit

setting 0, V

PP5V

=5V,

=10mΩ , measure I

Px_CCy

350 410 470 mA

LIMVC

short circuit current limit

setting 1, V

PP5V

=5V,

=10mΩ , measure I

Px_CCy

540 605 670 mA

CC2PP5V

Reverse leakage current

through VCONN FET

VCONN disabled, T

≤ 85

Px_CCy

= 5.5 V, V

PP5V

=0 V,

Px_VBUS

=5V, LDO forced to

draw from VBUS, measure

Px_CCy

0 10 µA

VCILIM

Current clamp deglitch time 1.28 ms

PP_CABLE_off

from disable signal to Px_CCy

at 10% of final value

= 250 mA, V

PP5V

= 5V, C

=0 100 171 300 µs

iOS_PP_CABLE

response time to short circuit

PP5V

=5V, for short circuit R

10mΩ.

2 µs

6.13 CC PHY Parameters

Operating under these conditions unless otherwise noted: 3.0 V ≤ V

VIN_3V3

≤ 3.6 V or V

Px_

VBUS

≥ 3.9 V

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Transmitter

TXHI

Transmit high voltage on Px_CCy Standard External load 1.05 1.125 1.2 V

TXLO

Transmit low voltage on Px_CCy Standard External load -75 75 mV

DRIVER

Transmit output impedance while

driving the CC line using Px_CCy

measured at 750 kHz 33 75 Ω

Rise

Rise time. 10 % to 90 % amplitude

points on Px_CCy, minimum is

under an unloaded condition.

Maximum set by TX mask

Px_CCy

= 520 pF 300 ns

Fall

Fall time. 90 % to 10 % amplitude

points on Px_CCy, minimum is

under an unloaded condition.

Maximum set by TX mask

Px_CCy

= 520 pF 300 ns

Receiver

BMCRX

receiver input impedance on

Px_CCy

Does not include pull-up or

pulldown resistance from cable

detect. Transmitter is Hi-Z.

1 MΩ

Receiver capacitance on

Px_CCy

(1)

Capacitance looking into the CC

pin when in receiver mode

120 pF

RX_SNK_R

Rising threshold on Px_CCy for

receiver comparator

sink mode (rising) 499 525 551 mV

RX_SRC_R

Rising threshold on Px_CCy for

receiver comparator

source mode (rising) 784 825 866 mV

TPS65994AD

SLVSFM6A – AUGUST 2020 – REVISED JULY 2021

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6.13 CC PHY Parameters (continued)

Operating under these conditions unless otherwise noted: 3.0 V ≤ V

VIN_3V3

≤ 3.6 V or V

Px_

VBUS

≥ 3.9 V

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

RX_SNK_F

Falling threshold on Px_CCy for

receiver comparator

sink mode (falling) 230 250 270 mV

RX_SRC_F

Falling threshold on Px_CCy for

receiver comparator

source mode (falling) 523 550 578 mV

(1) C

includes only the internal capacitance on a Px_CCy pin when the pin is configured to be receiving BMC data. External

capacitance is needed to meet the required minimum capacitance per the USB-PD Specifications (cReceiver). Therefore, TI

recommends adding C

Px_CCy

externally.

6.14 Thermal Shutdown Characteristics

over operating free-air temperature range (unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

SD_MAIN

Temperature shutdown threshold

Temperature rising 145 160 175 °C

hysteresis 15 °C

SD_PP5V

Temperature controlled shutdown

threshold. The power paths for

each port sourcing from PP5V

have local sensors that disables

them when this temperature is

exceeded.

Temperature rising 135 150 165 °C

hysteresis 5 °C

6.15 ADC Characteristics

Operating under these conditions unless otherwise noted: 3.0 V ≤ V

VIN_3V3

≤ 3.6 V

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

LSB least significant bit

3.6V max scaling, voltage

divider of 3

14 mV

25.2V max scaling, voltage

divider of 21

98 mV

4.07A max scaling 16.5 mA

GAIN_ERR Gain error

0.05V ≤ V

ADCINx

≤ 3.6V, V

ADCINx

≤ V

LDO_3V3

–2.7 2.7

0.05V ≤ V

GPIOx

≤ 3.6V, V

GPIOx

≤ V

LDO_3V3

2.7V ≤ V

LDO_3V3

≤ 3.6V –2.4 2.4

0.6V ≤ V

Px_VBUS

≤ 22V –2.1 2.1

VOS_ERR Offset error

(1)

0.05V ≤ V

ADCINx

≤ 3.6V, V

ADCINx

≤ V

LDO_3V3

–4.1 4.1

0.05V ≤ V

GPIOx

≤ 3.6V, V

GPIOx

≤ V

LDO_3V3

2.7V ≤ V

LDO_3V3

≤ 3.6V -4.1 4.1

0.6V ≤ V

Px_VBUS

≤ 22V -4.1 4.1

(1) The offset error is specified after the voltage divider.

6.16 Input/Output (I/O) Characteristics

Operating under these conditions unless otherwise noted: 3.0 V ≤ V

VIN_3V3

≤ 3.6 V

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

GPIO0-8 (Inputs)

GPIO_VIH GPIOx high-Level input voltage V

LDO_3V3

= 3.3V 1.3 V

GPIO_VIL GPIOx low-level input voltage V

LDO_3V3

= 3.3V 0.54 V

GPIO_HYS GPIOx input hysteresis voltage V

LDO_3V3

= 3.3V 0.09 V

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TPS65994AD

SLVSFM6A – AUGUST 2020 – REVISED JULY 2021

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Product Folder Links: TPS65994AD

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