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LTC4013 Dataheets PDF



Part Number LTC4013
Manufacturers Analog Devices
Logo Analog Devices
Description 60V Synchronous Buck Multi-Chemistry Battery Charger
Datasheet LTC4013 DatasheetLTC4013 Datasheet (PDF)

LTC4013 60V Synchronous Buck Multi-Chemistry Battery Charger FEATURES n Wide Input Voltage Range: 4.5V to 60V n Wide Battery Voltage Range: 2.4V to 60V n Built-In Charge Algorithms for Lead-Acid and Li-Ion n ±0.5% Float Voltage Accuracy n ±5% Charge Current Accuracy n Maximum Power Point Tracking Input Control n NTC Temperature Compensated Float Voltage n Two Open Drain Status Pins n Thermally Enhanced 28-Lead 4mm × 5mm QFN Package APPLICATIONS n Battery Backup for Lighting, UPS Systems, Securi.

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LTC4013 60V Synchronous Buck Multi-Chemistry Battery Charger FEATURES n Wide Input Voltage Range: 4.5V to 60V n Wide Battery Voltage Range: 2.4V to 60V n Built-In Charge Algorithms for Lead-Acid and Li-Ion n ±0.5% Float Voltage Accuracy n ±5% Charge Current Accuracy n Maximum Power Point Tracking Input Control n NTC Temperature Compensated Float Voltage n Two Open Drain Status Pins n Thermally Enhanced 28-Lead 4mm × 5mm QFN Package APPLICATIONS n Battery Backup for Lighting, UPS Systems, Security Cameras, Computer Control Panels n Portable Medical Equipment n Solar-Powered Systems n Industrial Battery Charging All registered trademarks and trademarks are the property of their respective owners. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 9246383. DESCRIPTION The LTC®4013 is a high voltage battery charger that is well suited for charging a wide range of lead-acid batteries including both vented and sealed types. It supports bulk, float, absorption and equalization charging. The LTC4013 also supports termination options for Li-Ion/Polymer and LiFePO4 batteries. Charging is performed with a high efficiency synchronous buck (step-down) converter that uses external N-channel MOSFETs. Switching frequency is resistor programmable or can be synchronized to an external clock. Charge current is programmed with an external sense resistor. The LTC4013 also includes maximum power point tracking input-voltage regulation for limited power sources such as solar panels. Other features include user-programmable absorption and equalization times, temperature-compensated charge voltage and an external N-channel MOSFET isolation control circuit. TYPICAL APPLICATION 15V-34V to 6 Cell Lead-Acid (12.6V) 5A Step-Down Battery Charger 15V-34V INFET VIN_S DCIN ENAB MPPT VIN BST TG SW BG FBOC LTC4013 INTVCC PGND SENSE INTVCC MODE1 BAT MODE2 FB SYNC NTC RT TMR LB SGND ITH INTVCC RNTC Efficiency and Power Loss vs Charge Current EFFICIENCY (%) POWER LOSS (W) 97 2.5 96 EFFICIENCY 95 2.0 94 POWER LOSS 93 1.5 92 91 1.0 90 89 VIN = 24V 0.5 88 VBAT = 13.8V 87 0 0 1 2 3 4 5 CHARGE CURRENT (A) 4013 TA01a BASED ON APPLICATION ON BACK PAGE Document Feedback 4013 TA01 For more information www.analog.com Rev B 1 LTC4013 ABSOLUTE MAXIMUM RATINGS (Note 1) DCIN, VIN, VIN_S, ENAB, STAT0, STAT1..... –0.3V to 60V INFET.......................................................... –0.3V to 73V BST ............................................................ –0.3V to 66V STAT0, STAT1...........................................................5mA SENSE, BAT................................................ –0.3V to 60V SENSE-BAT................................................ –0.3V to 0.3V FBOC, MPPT, FB, MODE1, MODE2, SYNC, INTVCC, NTC............................................. –0.3V to 6V TMR, LB, ITH................................................ –0.3V to 3V Operating Junction Temperature Range (Note 2).............................................. –40°C to 125°C Storage Temperature Range................... –65°C to 150°C PIN CONFIGURATION TOP VIEW VIN_S VIN PGND INTVCC BG SW 28 27 26 25 24 23 INFET 1 22 TG DCIN 2 21 BST MPPT 3 20 SENSE FBOC 4 ENAB 5 29 SGND 19 BAT 18 FB ISMON 6 17 NTC STAT0 7 16 ITH STAT1 8 15 RT 9 10 11 12 13 14 LB TMR MODE1 MODE2 CLKOUT SYNC UFD PACKAGE 28-LEAD (4mm × 5mm) PLASTIC QFN TJMAX = 125°C, θJA = 43°C/W, θJC = 3.4°C/W EXPOSED PAD (PIN 29) IS SGND, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LTC4013EUFD#PBF LTC4013EUFD#TRPBF 4013 28-Lead (4mm × 5mm) Plastic QFN –40°C to 125°C LTC4013IUFD#PBF LTC4013IUFD#TRPBF 4013 28-Lead (4mm × 5mm) Plastic QFN –40°C to 125°C Contact the factory for parts specified with wider operating temperature ranges. Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. Rev B 2 For more information www.analog.com LTC4013 ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C (Note 2). DCIN, VIN, VIN_S = 18V, ENAB = 1.4V, SYNC = 0V unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS Input Voltage Range (DCIN, VIN) l 4.5 60 V Battery Voltage Range (BAT) l 2.4 60 V ENAB Pin Threshold (Rising) Threshold Hysteresis l 1.175 1.220 1.275 V 170 mV ENAB Pin Bias Current 10 nA VIN UVLO VIN Rising, Power Enabled VIN Rising, Power Disabled 3.45 V 3.08 V DCIN Pin Operating Current Shutdown Current Not Switching ENAB = 0V 480 625 µA l 4 7.9 µA VIN Pin Operating Current Shutdown Current Not Switching (Notes 3 and 4) ENAB = 0V, RT = 40.2k 2.1 2.8 mA l 32 80 µA BAT Pin Shutdown Current ENAB = 0V l 0.5 1.


HY1403P LTC4013 G230HAN01.1


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