Datasheet LTC2946 (Analog Devices) - 3

LTC2946
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2946CDE#PBF LTC2946CDE#TRPBF 2946 16-Lead (4mm × 3mm) Plastic DFN 0°C to 70°C LTC2946IDE#PBF LTC2946IDE#TRPBF 2946 16-Lead (4mm × 3mm) Plastic DFN –40°C to 85°C LTC2946HDE#PBF LTC2946HDE#TRPBF 2946 16-Lead (4mm × 3mm) Plastic DFN –40°C to 125°C LTC2946CDE-1#PBF LTC2946CDE-1#TRPBF 29461 16-Lead (4mm × 3mm) Plastic DFN 0°C to 70°C LTC2946IDE-1#PBF LTC2946IDE-1#TRPBF 29461 16-Lead (4mm × 3mm) Plastic DFN –40°C to 85°C LTC2946HDE-1#PBF LTC2946HDE-1#TRPBF 29461 16-Lead (4mm × 3mm) Plastic DFN –40°C to 125°C LTC2946CMS#PBF LTC2946CMS#TRPBF 2946 16-Lead Plastic MSOP 0°C to 70°C LTC2946IMS#PBF LTC2946IMS#TRPBF 2946 16-Lead Plastic MSOP –40°C to 85°C LTC2946HMS#PBF LTC2946HMS#TRPBF 2946 16-Lead Plastic MSOP –40°C to 125°C LTC2946MPMS#PBF LTC2946MPMS#TRPBF 2946 16-Lead Plastic MSOP –55°C to 125°C LTC2946CMS-1#PBF LTC2946CMS-1#TRPBF 29461 16-Lead Plastic MSOP 0°C to 70°C LTC2946IMS-1#PBF LTC2946IMS-1#TRPBF 29461 16-Lead Plastic MSOP –40°C to 85°C LTC2946HMS-1#PBF LTC2946HMS-1#TRPBF 29461 16-Lead Plastic MSOP –40°C to 125°C LTC2946MPMS-1#PBF LTC2946MPMS-1#TRPBF 29461 16-Lead Plastic MSOP –55°C to 125°C Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on nonstandard lead based finish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VDD is from 4V to 100V, unless otherwise noted. (Note 2) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Supplies
VDD VDD Input Supply Voltage l 4 100 V VCC INTVCC Input Supply Voltage l 2.7 5.8 V IDD VDD Supply Current VDD = 48V, INTVCC Open l 0.9 1.3 mA Shutdown l 15 40 μA ICC INTVCC Supply Current INTVCC = VDD = 5V l 0.7 1.0 mA Shutdown l 15 40 μA VCC(LDO) INTVCC Linear Regulator Voltage 8V < VDD < 100V, ILOAD = 0mA l 4.4 5 5.4 V ΔVCC(LDO) INTVCC Linear Regulator Load Regulation 8V < VDD < 100V, ILOAD = 0mA to 10mA l 100 200 mV VCCZ Shunt Regulator Voltage at INTVCC VDD = 48V, ICC = 1mA l 5.8 6.3 6.7 V ΔVCCZ Shunt Regulator Load Regulation VDD = 48V, ICC = 1mA to 35mA l 250 mV VCC(UVL) INTVCC Supply Undervoltage Lockout INTVCC Rising, VDD = INTVCC l 2.3 2.6 2.69 V VDD(UVL) VDD Supply Undervoltage Lockout VDD Rising, INTVCC Open l 2.4 2.8 3 V VDDI2C(RST) VDD I2C Logic Reset VDD Falling, INTVCC Open l 1.7 2.1 V VCCI2C(RST) INTVCC I2C Logic Reset INTVCC Falling, VDD = INTVCC l 1.7 2.1 V
SENSE Inputs
ISENSE+(HI) 48V SENSE+ Input Current SENSE+, SENSE–, VDD = 48V l 100 150 µA Shutdown l 1 µA ISENSE–(HI) 48V SENSE– Input Current SENSE+, SENSE–, VDD = 48V l 20 µA Shutdown l 1 µA ISENSE+(LO) 0V SENSE+ Source Current SENSE+, SENSE– = 0V, VDD = 48V l –10 µA Shutdown l –1 µA 2946fa For more information www.linear.com/LTC2946 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts