LTC1694CS5#TRPBF

LTC1694 is a SMBus/I²C accelerator. It is a dual SMBus active pull-up designed to enhance data transmission speed and reliability under all specified SMBus loading conditions. It is also compatible with the Philips I²C TM bus. It allows multiple device connections or a longer, more capacitive interconnect, without compromising slew rates or bus performance, by using two bi-level hysteretic current source pull-ups. During positive bus transitions, the device current sources provide 2.2mA to quickly slew the SMBus line. During negative transitions or steady DC levels, the current sources decrease to 275µA to improve negative slew rate and improve low state noise margins. An auto detect standby mode reduces supply current if both SCL and SDA are high. It is widely used in application such as notebook and palmtop computers, portable instruments, battery chargers, industrial control application, TV/video products, ACPI SMBus interface etc.

• Improves SMBus rise time transition
• Ensures data integrity with multiple devices on the SMBus
• Improves low state noise margin
• Auto detect low power standby mode
• Wide supply voltage range is 2.7V to 6V
• Supply current is 60µA typical
• SMBus maximum operating frequency is 100KHz maximum
• Input threshold voltage is 0.65V typical
• Operating temperature is 0°C to 70°C
• Package style is 5-lead plastic TSOT-23

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