双极性晶体管

二极管

ESD保护、TVS、滤波和信号调节ESD保护

MOSFET

氮化镓场效应晶体管(GaN FET)

绝缘栅双极晶体管(IGBTs)

模拟和逻辑IC

汽车应用认证产品(AEC-Q100/Q101)

NCA9548ABY-Q100

8-channel I²C-bus switch with reset

The NCA9548A-Q100 is an octal bidirectional translating switch controlled via the I²C-bus. The SCL/SDA upstream pair fans out to eight downstream pairs, or channels. Any individual SCn/SDn channel or combination of channels can be selected, determined by the contents of the programmable control register.

An active LOW reset input allows the NCA9548A-Q100 to recover from a situation where one of the downstream I²C-buses is stuck in a LOW state. Pulling the RESET pin LOW resets the I²C-bus state machine and causes all the channels to be deselected as does the internal Power-on reset function.

The pass gates of the switches are constructed such that the VCC pin can be used to limit the maximum high voltage which will be passed by the NCA9548A-Q100. This allows the use of different bus voltages on each pair, so that 1.8 V or 2.5 V or 3.3 V parts can communicate with 5 V parts without any additional protection. External pull-up resistors pull the bus up to the desired voltage level for each channel. All I/O pins are 6 V tolerant.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.

Features and benefits

  • Automotive product qualification in accordance with AEC-Q100 (Grade 1)

    • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

  • 1-of-8 bidirectional translating switches

  • I²C-bus interface logic; compatible with SMBus standards

  • Active LOW reset input

  • Three address pins allowing up to eight devices on the I²C-bus

  • Channel selection via I²C-bus, in any combination

  • Power-up with all switch channels deselected

  • Low Ron switches

  • Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses

  • No glitch on power-up

  • Supports hot insertion

  • Low standby current

  • Operating power supply voltage range of 1.65 V to 5.5 V

  • 6 V tolerant inputs

  • 0 Hz to 400 kHz clock frequency

  • Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA

  • Two packages offered: TSSOP24, and HWQFN24

  • ESD protection:

    • HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2 kV

    • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1 kV

封装

型号 可订购的器件编号,(订购码(12NC)) 状态 标示 封装 外形图 回流焊/波峰焊 包装
NCA9548ABY-Q100 NCA9548ABY-Q100HP
(935691790128)
Samples available / Development CA9548 SOT8041-1
HWQFN24
(SOT8041-1)
SOT8041-1 SOT8041-1_128

环境信息

型号 可订购的器件编号 化学成分 RoHS RHF指示符
NCA9548ABY-Q100 NCA9548ABY-Q100HP NCA9548ABY-Q100 rohs rhf rhf
品质及可靠性免责声明

文档 (4)

文件名称 标题 类型 日期
NCA9548A_Q100 8-channel I²C-bus switch with reset Data sheet 2025-08-26
AN90063 Questions about package outline drawings Application note 2025-06-13
SOT8041-1 plastic thermal enhanced very very thin Quad Flat packages, no leads;24 terminals; 0.5 mm pitch; 4 x 4 x 0.75 mm body Package information 2024-04-23
SOT8041-1_128 QFN4x4 24L; Reel pack for SMD, 13"; Q2/T3 product orientation Packing information 2022-08-01

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模型

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型号 Orderable part number Ordering code (12NC) 状态 包装 Packing Quantity 在线购买

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How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.

可订购部件

型号 可订购的器件编号 订购代码(12NC) 封装 从经销商处购买
NCA9548ABY-Q100 NCA9548ABY-Q100HP 935691790128 SOT8041-1 订单产品