LTC4359 Ideal Diode Controller with Reverse Input Protection FEATURES DESCRIPTION n Reduces Power Dissipation by Replacing a Power The LTC 4359 is a positive high voltage ideal diode control- Schottky Diode ler that drives an external N-channel MOSFET to replace n Wide Operating Voltage Range: 4V to 80V a Schottky diode. It controls the forward-voltage drop n Reverse Input Protection to 40V across the MOSFET to ensure smooth current delivery n Low 9A Shutdown Current without oscillation even at light loads. If a power source n Low 150A Operating Current fails or is shorted, a fast turn-off minimizes reverse cur- n Smooth Switchover without Oscillation rent transients. A shutdown mode is available to reduce n Controls Single or Back-to-Back N-Channel MOSFETs the quiescent current to 9A for load switch and 14A for n Available in 6-Pin (2mm 3mm) DFN, 8-Lead MSOP ideal diode applications. and 8-Lead SO Packages When used in high current diode applications, the LTC4359 n AEC-Q100 Qualified for Automotive Applications reduces power consumption, heat dissipation, voltage loss and PC board area. With its wide operating voltage range, APPLICATIONS the ability to withstand reverse input voltage, and high temperature rating, the LTC4359 satisfies the demanding n Automotive Battery Protection requirements of both automotive and telecom applications. n Redundant Power Supplies The LTC4359 also easily ORs power sources in systems n Supply Holdup with redundant supplies. n Telecom Infrastructure All registered trademarks and trademarks are the property of their respective owners. n Computer Systems/Servers n Solar Systems TYPICAL APPLICATION Power Dissipation vs Load Current 12V, 20A Automotive Reverse-Battery Protection 10 BSC028N06NS V IN V TO LOAD OUT 12V 8 SMAT70A SCHOTTKY DIODE (SBG2040CT) 70V SMAJ24A IN SOURCE GATE OUT 6 24V 47nF SHDN LTC4359 POWER 4 SAVED V SS 2 4359 TA01 MOSFET (BSC028N06NS) 1k 0 0 10 15 20 5 CURRENT (A) 4359 TA01a Rev. F 1 Document Feedback For more information www.analog.com POWER DISSIPATION (W)LTC4359 ABSOLUTE MAXIMUM RATINGS (Notes 1, 2) IN, SOURCE, SHDN ................................... 40V to 100V Operating Ambient Temperature Range OUT (Note 3) ................................................2V to 100V LTC4359C ................................................ 0C to 70C IN OUT ..................................................100V to 100V LTC4359I .............................................40C to 85C IN SOURCE .................................................1V to 80V LTC4359H .......................................... 40C to 125C GATE SOURCE (Note 4) .........................0.3V to +10V Storage Temperature Range .................. 65C to 150C Lead Temperature (Soldering, 10 sec) MS, SO Packages .............................................300C PIN CONFIGURATION TOP VIEW TOP VIEW TOP VIEW GATE 1 8 OUT GATE 1 8 OUT OUT 1 6 V SS SOURCE 2 7 NC SOURCE 2 7 NC 7 GATE 2 5 SHDN NC 3 6 V SS IN 4 5 SHDN NC 3 6 V SS SOURCE 4 IN 3 MS8 PACKAGE IN 4 5 SHDN 8-LEAD PLASTIC MSOP DCB PACKAGE T = 150C, = 163C/W S8 PACKAGE JMAX JA 6-LEAD (2mm 3mm) PLASTIC DFN 8-LEAD PLASTIC SO T = 150C, = 64C/W JMAX JA T = 150C, = 130C/W JMAX JA EXPOSED PAD (PIN 7) PCB V CONNECTION OPTIONAL SS ORDER INFORMATION TAPE AND REEL (MINI) TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC4359CDCB TRMPBF LTC4359CDCB TRPBF LFKF 6-Lead (2mm 3mm) Plastic DFN 0C to 70C LTC4359IDCB TRMPBF LTC4359IDCB TRPBF LFKF 6-Lead (2mm 3mm) Plastic DFN 40C to 85C LTC4359HDCB TRMPBF LTC4359HDCB TRPBF LFKF 6-Lead (2mm 3mm) Plastic DFN 40C to 125C TUBE TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC4359CMS8 PBF LTC4359CMS8 TRPBF LTFKD 8-Lead Plastic MSOP 0C to 70C LTC4359IMS8 PBF LTC4359IMS8 TRPBF LTFKD 8-Lead Plastic MSOP 40C to 85C LTC4359HMS8 PBF LTC4359HMS8 TRPBF LTFKD 8-Lead Plastic MSOP 40C to 125C LTC4359CS8 PBF LTC4359CS8 TRPBF 4359 8-Lead Plastic SO 0C to 70C LTC4359IS8 PBF LTC4359IS8 TRPBF 4359 8-Lead Plastic SO 40C to 85C LTC4359HS8 PBF LTC4359HS8 TRPBF 4359 8-Lead Plastic SO 40C to 125C AUTOMOTIVE PRODUCTS** LTC4359IMS8 WPBF LTC4359IMS8 WTRPBF LTFKD 8-Lead Plastic MSOP 40C to 85C LTC4359HMS8 WPBF LTC4359HMS8 WTRPBF LTFKD 8-Lead Plastic MSOP 40C to 125C LTC4359IDCB WTRPBF LTC4359IDCB WTRPBF LFKF 6-Lead (2mm 3mm) Plastic DFN 40C to 85C LTC4359HDCB WTRPBF LTC4359HDCB WTRPBF LFKF 6-Lead (2mm 3mm) Plastic DFN 40C to 125C Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with TRMPBF suffix. **Versions of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. These models are designated with a W suffix. Only the automotive grade products shown are available for use in automotive applications. Contact your local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for thesemodels. Rev. F 2 For more information www.analog.com