FUSB301A：自动USB Type-C控制器数据手册

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"fusb301atmx-datasheet.pdf 是仙童半导体公司发布的一份关于FUSB301A型自主USB Type-C控制器的数据手册，适用于智能手机等应用。该器件支持USB Type-C版本1.1和1.0，并具备低功耗特性，同时提供了可配置的I2C地址功能，便于系统中多个端口的管理。" 《仙童半导体FUSB301A自主USB Type-C控制器详解》在当今数字化时代，USB Type-C接口因其高灵活性和高速数据传输能力而广泛应用于各种电子设备，尤其是智能手机和平板电脑。FUSB301A是仙童半导体推出的一款专为低功率（<15W）应用设计的自主USB Type-C控制器，它具有多项独特的功能和优化性能。 1. **完全自主控制**：FUSB301A能够独立执行Type-C协议，支持源模式、接收器模式和双角色端口（DRP）操作，同时提供配件检测和支持无电池状态的设备连接。 2. **电压范围宽泛**：该控制器可在3.0V至5.5V的电压范围内工作，这使得它能适应多种供电环境，确保与不同电源适配器的兼容性。 3. **低功耗特性**：FUSB301A在禁用模式下功耗极低，最大电流仅为2.0μA；正常运行时的待机功耗也极低，最大电流不超过7.0μA，有助于延长设备的电池寿命。 4. **可配置I2C地址**：这一特性使得一个系统中可以有多个FUSB301A控制器，通过设置不同的I2C地址避免地址冲突，提高系统集成度。 5. **DRP模式与配件支持**：FUSB301A支持DRP模式，允许设备在源和接收器之间动态切换，同时可选配配件支持，增加了设备的多功能性。 6. **尝试源/接收器检测**：控制器能够识别Try.SNK和Try.SRC状态，允许设备在没有明确连接类型时进行自动检测，进一步提升了用户体验。 7. **无电源时的死电池支持**：即使在没有外部电源的情况下，FUSB301A也能支持SINK模式，为用户提供可靠的充电解决方案。 8. **高ESD保护**：2kV人体模型（HBM）静电放电保护确保了器件在恶劣环境下具有良好的稳定性，降低了损坏风险。 9. **紧凑封装**：FUSB301A采用12引脚超薄TMLP封装，尺寸仅为1.6mm x 1.6mm x 0.375mm，适合空间有限的移动设备应用。 FUSB301A的这些特性使其成为智能手机、平板电脑等便携式设备的理想选择，它能够在保证功能的同时，最大限度地降低对电池续航的影响，提高设备的易用性和可靠性。在设计和实施USB Type-C接口的系统中，FUSB301A控制器无疑是值得考虑的高效解决方案。

FUSB301A

www.onsemi.com

PIN DESCRIPTIONS

Pin # Name Type Description

USB Type−C Connector Interface

1, 2 CC1, CC2 I/O Type−C Configuration Channel

4 VBUS Input VBUS input pin for attach and detach detection

10 GND Ground Ground

Power Interface

12 VDD Power Input Supply Voltage

Signal Interface

8 SCL Input I

C serial clock signal to be connected to the I

C master

7 SDA Open−Drain

I/O

C serial data signal to be connected to the I

C master

6 INT_N Open−Drain

Output

Active LOW open drain interrupt output used to prompt the processor

to read the I

C register bits

9 ID Open−Drain

Output

Used to Identify if connected device is Source or Sink. The ID Pin

can be used to interface with USB 2.0 Input on the processor.

5 I2CADDR Input Used to change bit 3 of the I2C address so that multiple addresses

can be used in a system where two device addresses conflict

3 NC1 NC No Connect − Tie to Ground or Float

11 NC2 NC No Connect − Tie to Ground or Float

Dead Battery

If power is not applied to FUSB301A and it is attached to

a Source device, then the Source would pull up the CC line

connected through the cable. The FUSB301A in response

would turn on the pull−down that will bring the CC voltage

to a range that the Source can detect an attach and turn on

VBUS.

Power Up, Initialization and Reset, Interrupt Operation

When power is first applied, the FUSB301A will power

up in Sink mode with all interrupts masked. The local

processor must configure the FUSB301A to the desired

mode and clear the global interrupt mask bit, INT_MASK.

The INT_N pin is an active low, open drain output. This pin

indicates to the host processor that an interrupt has occurred

in the FUSB301A which needs attention. The INT_N pin is

in a high impedance state by default after power−up or

device reset, and the global interrupt mask (INT_MASK in

Control register) is set. After INT_MASK bit is cleared by

the local processor, the INT_N pin stays high impedance in

preparation of future interrupts. When an interruptible event

occurs, INT_N is driven LOW and is in a high impedance

state again when the processor clears the interrupt by reading

the interrupt registers. Subsequent to the initial power up or

reset; if the processor writes a “1” to global interrupt mask

bit when the system is already powered up, the INT_N pin

stays in a high impedance state and ignores all interrupts

until the global interrupt mask bit is cleared. If an event

happens that would ordinarily cause an interrupt when the

global interrupt mask bit is set, the INT_N pin goes LOW

when the global interrupt mask is cleared.

Table 1. ID PIN TRUTH TABLE

Type Register (h12, bit 4) Description ID

SINK = b0 SINK Not Detected Hi−Z (default)

SINK = b1 SINK Detected Low

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter Min. Max. Unit

Supply Voltage from V

−0.5 6.0 V

BUS

VBUS Supply Voltage −0.5 28 V

CC_HDDRP

CC pins when configured as Host, Device or Dual Role Port −0.5 6.0 V

STORAGE

Storage Temperature Range −65 +150 °C

剩余13页未读，继续阅读

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