LTC4151 2 High Voltage I C Current and Voltage Monitor Fea T Descrip T n Wide Operating Voltage Range: 7V to 80V The LTC 4151 is a high side power monitor that operates n 12-Bit Resolution for Both Current and Voltages over a wide voltage range of 7V to 80V. In default operation 2 n I C Interface mode, the onboard 12-bit ADC continuously measures n Additional ADC Input Monitors an External Voltage high side current, input voltage and an external voltage. 2 n Continuous Scan and Snapshot Modes Data is reported through the I C interface when polled n Shutdown Mode (LTC4151) Reduces Quiescent by a host. The LTC4151 can also perform on-demand Current to 120A measurement in a snapshot mode. The LTC4151 features n Split SDA for Opto-Isolation (LTC4151-1/LTC4151-2) a dedicated shutdown pin to reduce power consumption. 2 n Available in 10-Lead MSOP, 10-Lead 3mm 3mm The LTC4151-1/LTC4151-2 feature split I C data pins to DFN and 16-Lead SO Packages drive opto-isolators. The data out on the LTC4151-1 is inverted while that on the LTC4151-2 is not. a T PART PACKAGE FEATURED PIN n LTC4151 DD10, MS10 SHDN 48V Telecom Infrastructure n Automotive LTC4151-1 DD10, MS10 SDAO n Industrial LTC4151-2 S16 SDAO n L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Consumer Hot Swap is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical a T 12-Bit ADC DNL and INL 1.0 0.5 2 High Side Power Sensing with Onboard ADC and I C 0 3.3V 0.02 V IN 0.5 V OUT 7V TO 80V V DD 2k 2k + SENSE SENSE 1.0 CONTROLLER V SHDN IN 0 1024 2048 3072 4096 LTC4151 CODE SCL SCL 4151 TA01b ADR1 SDA SDA 1.0 GND MEASURED 4151 TA01 ADR0 ADIN VOLTAGE GND 0.5 0 0.5 1.0 0 2048 3072 4096 1024 CODE 4151 TA01c 4151ff For more information www.linear.com/LTC4151 1 ADC INL (LSB) ADC DNL (LSB) ion pplica ions pplica ion uresLTC4151 a T e Maxi Mu M r a T (Notes 1, 3) V Voltage ................................................. 0.3V to 90V Operating Temperature Range IN + SENSE , SENSE Voltages ...........................V 10V or LTC4151C/LTC4151C-1/LTC4151C-2 ......... 0C to 70C IN 0.3V to V + 0.3V LTC4151I/LTC4151I-1/LTC4151I-2 .........40C to 85C IN ADR1, ADR0 Voltages .............................. 0.3V to 90V LTC4151H ........................................... 40C to 125C ADIN, SHDN, SDAO, SDAO Voltages ........... 0.3V to 6V Storage Temperature Range SCL, SDA, SDAI Voltages (Note 2) ........... 0.3V to 5.5V MSOP, SO ..........................................65C to 150C SCL, SDA, SDAI Clamp Current ............................... 5mA DFN .................................................... 65C to 125C Lead Temperature (Soldering, 10 sec) MSOP, SO .........................................................300C p c F T LTC4151 LTC4151 TOP VIEW + TOP VIEW SENSE 1 10 SENSE + SENSE 1 10 SENSE V 9 GND 2 IN V 2 9 GND IN 11 ADR1 3 SHDN 8 ADR1 3 8 SHDN 4 ADR0 4 7 SDA ADR0 7 SDA ADIN 5 6 SCL ADIN 5 6 SCL MS PACKAGE 10-LEAD PLASTIC MSOP DD PACKAGE 10-LEAD (3mm 3mm) PLASTIC DFN T = 150C, = 85C/W JMAX JA T = 150C, = 45C/W JMAX JA EXPOSED PAD (PIN 11) PCB GND CONNECTION OPTIONAL LTC4151-1 LTC4151-1 TOP VIEW + TOP VIEW SENSE 1 10 SENSE + SENSE 1 10 SENSE V 9 GND 2 IN V 2 9 GND IN 11 3 ADR1 8 SDAO ADR1 3 8 SDAO ADR0 4 7 SDAI ADR0 4 7 SDAI ADIN 5 6 SCL ADIN 5 6 SCL MS PACKAGE 10-LEAD PLASTIC MSOP DD PACKAGE 10-LEAD (3mm 3mm) PLASTIC DFN T = 125C, = 85C/W JMAX JA T = 125C, = 45C/W JMAX JA EXPOSED PAD (PIN 11) PCB GND CONNECTION OPTIONAL LTC4151-2 TOP VIEW + SENSE 1 16 SENSE V 2 15 NC IN NC 3 14 NC NC 4 13 GND ADR1 5 12 SDAO NC 6 11 SDAI ADR0 7 10 SCL NC 8 9 ADIN S PACKAGE 16-LEAD PLASTIC SO T = 150C, = 100C/W JMAX JA 4151ff 2 For more information www.linear.com/LTC4151 ion igura on in ings bsolu