LTC4151-1

Features n Wide Operating Voltage Range: 7V to 80V n 12-Bit Resolution for Both Current and Voltages n I2C Interface n Additional ADC Input Monitors an External Voltage n Continuous Scan and Snapshot Modes n Shutdown Mode (LTC4151) Reduces Quiescent Current to 120µA n Split SDA for Opto-Isolation (LTC4151-1/LTC4151-2) n Available in 10-Lead MSOP, 10-Lead 3mm × 3mm DFN and 16-Lead SO Packages Applications n –48V Telecom Infrastructure n Automotive n Industrial n Consumer LTC4151 High Voltage I2C Current and Voltage Monitor Description The LTC®4151 is a high side power monitor that operates over a wide voltage range of 7V to 80V. In default operation mode, the onboard 12-bit ADC continuously measures high side current, input voltage and an external voltage. Data is reported through the I2C interface when polled by a host. The LTC4151 can also perform on-demand measurement in a snapshot mode. The LTC4151 features a dedicated shutdown pin to reduce power consumption. The LTC4151‑1/LTC4151-2 feature split I2C data pins to drive opto-isolators. The data out on the LTC4151-1 is inverted while that on the LTC4151-2 is not. PART PACKAGE FEATURED PIN LTC4151 DD10, MS10 SHDN LTC4151-1 DD10, MS10 SDAO LTC4151-2 S16 SDAO L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Hot Swap is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical Application High Side Power Sensing w...