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LTC1710C Datasheet(PDF) 1 Page - Linear Technology |
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LTC1710C Datasheet(HTML) 1 Page - Linear Technology |
1 / 8 page 1 LTC1710 SMBus Dual Monolithic High Side Switch s Two 0.4 Ω/300mA N-Channel Switches s Available in MS8 and SO-8 Packages s SMBus and I2C Compatible s 0.6V VIL and 1.4V VIH for DATA and CLK s Low Standby Current: 14 µA s Separate Drain Connection to SW0 s Three Addresses from One Three-State Address Pin s Independent Control of Up to Six Switches s Built-In Power-On Reset Timer s Built-In Undervoltage Lockout FEATURES DESCRIPTION The LTC ®1710 SMBus dual switch has two built-in 0.4 Ω/ 300mA switches that are controlled by a 2-wire SMBus interface. With a low standby current of 14 µA (3.3V), the LTC1710 operates over an input voltage range of 2.7V to 5.5V while maintaining the SMBus specified 0.6V VIL and 1.4V VIH input thresholds. Using the 2-wire interface, CLK and DATA, the LTC1710 follows SMBus’s Send Byte Protocol to independently control the two 0.4 Ω internal N-channel power switches, which are fully enhanced by onboard charge pumps. The LTC1710 has one three-state programmable address pin that allows three different addresses for a total of six available switches on the same bus. The LTC1710 also features a separate user-controlled drain supply (SW0D) to Switch 0 so that it can be used to control SMBus peripherials using a different power supply. , LTC and LT are registered trademarks of Linear Technology Corporation. APPLICATIONS s Handheld Computer Power Management s Computer Peripheral Control s Laptop Computer Power Plane Switching s Portable Equipment Power Control s Industrial Control Systems s ACPI SMBus Interface TYPICAL APPLICATION LOAD CURRENT (mA) 0 200 VCC = 3.3V 300 400 1710 TA02 100 0 100 200 300 500 TA = 25°C 400 VCC = 2.7V VCC = 5V Switch Voltage Drop vs Load Current CHARGE PUMP 81 2 10 µF 10 µF 7 5 CLOCK DATA 6 FROM SMBus 3 AD1 (PROGRAMMABLE) 4 1710 TA01 VCC 2.7V TO 5.5V SW0D 0V TO VCC LTC1710 LOAD 1 SW0 SW1 LOAD 2 |
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