TCA9509RVHR Buffer ReDriver 1 Channel 400kHz 8-X2QFN (1.6x1.6) Integrated Circuits ICs
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MOQ:
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Brand:
Texas Instruments
Product Description
TCA9509RVHR Buffer ReDriver 1 Channel 400kHz 8-X2QFN (1.6x1.6)
| Texas Instruments | |
| Product Category: | Interface - Signal Buffers, Repeaters |
| RoHS: | Details |
| Repeaters | |
| I2C, SMBus | |
| 132.8 ns | |
| 400 kHz | |
| 5.5 V | |
| 2.7 V | |
| - 40 C | |
| + 85 C | |
| SMD/SMT | |
| X2QFN-8 | |
| Reel | |
| Cut Tape | |
| MouseReel | |
| Brand: | Texas Instruments |
| Ciss - Input Capacitance: | 7 pF |
| Operating Supply Current: | 3 mA |
| Operating Supply Voltage: | 2.7 V to 5.5 V |
| Output Current: | 10 uA |
| Pd - Power Dissipation: | 100 mW |
| Product Type: | Signal Buffers, Repeaters |
| Series: | TCA9509 |
| Subcategory: | Interface ICs |
| Type: | I2C Bus |
| Unit Weight: | 0.000208 oz |
Description
This TCA9509 integrated circuit is an I2C bus/SMBus Repeater for use in 12C/SMBus systems. It can
also provide bidirectional voltage-level translation (up-translation/down-translation) between low voltages
(down to 0.9 V) and higher voltages (2.7 V to 5.5V) in mixed-mode applications. This device enables
I2C and similar bus systems to be extended, without degradation of performance even during level shifting.
The TCA9509 buffers both the serial data (SDA) and the serial clock (SCL) signals on the I2C bus, thus
allowing 400-pF bus capacitance on the B-side. This device can also be used to isolate two halves of a bus
for voltage and capacitance.
The TCA9509 has two types of drivers - A-side drivers and B-side drivers. All inputs and B-side l/Os are
overvoltage tolerant to 5.5 V. The A-side l/Os are overvoltage tolerant to 5.5 V when the device is unpowered
(VCCB and/or VCCA=0 V).
Features
●Two-channel bidirectional buffer
●I2C bus and SMBus compatible
●Operating supply voltage range of 2.7Vto5.5VonBside
●Operating voltage range of0.9V to 5.5V on A side
●Voltage-level translation from 0.9Vto5.5V and2.7V to 5.5 V
●Active-high repeater-enable input
●Requires no external pullup resistors on lower-voltage port-A
●Open-drain I2C /05.5-V Tolerant I2C and enable input support mixed-mode signal operation
●Lockup-free operation
●Accommodates standard mode and fast mode 12C
devices and multiple controllers
●Supports arbitration and clock stretching across Repeater
●Powered-off high-impedance I2C bus pins
●Supports 400-kHz fast I2C bus operating speeds
●Available in
一1.6-mm x 1.6-mm, 0.4-mm height, 0.5-mm pitch QFN package
一3-mm x 3-mm Industry standard MSOP package
●Latch-up performance exceeds 100 mA Per JESD78, class II
一ESD protection exceeds JESD 22
一2000-V Human-body model (A114-A)
●1000-V Charged-device model (C101)
Applications
●Servers
●Routers (Telecom Switching Equipment)
●Industrial Equipment
●Products with many I2C targets and or long PCB
●Traces
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