lt3653 Linear Technology Corporation, lt3653 Datasheet
lt3653
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lt3653 Summary of contents
Page 1
... V OUT IN The wide operating input voltage range of 7.5V to 30V suits the LT3653 to a variety of input sources, including unregulated 12V wall adapters, 24V industrial supplies, Firewire and automotive power. Input overvoltage protec- tion allows the LT3653 to handle 60V input transients. The LT3653 control pin, V tracking control, Bat-Track ...
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... I Pins .............................................6V OUT SENSE V Pin .........................................................................3V C Operating Junction Temperature Range (Notes 2, 5) LT3653E .............................................–40°C to 125°C LT3653I ..............................................–40°C to 125°C Storage Temperature ..............................–65°C to 150°C ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LT3653EDCB#PBF LT3653EDCB#TRPBF LT3653IDCB#PBF LT3653IDCB#TRPBF Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. ...
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... Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The LT3653E is guaranteed to meet performance specifi cations from 0°C to 125°C. Specifi cations over the –40°C to 125°C operating temperature range are assured by design, characterization, and correlation with statistical process controls. The LT3653I specifi ...
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... LT3653 TYPICAL PERFORMANCE CHARACTERISTICS Switch Voltage Drop 400 125ºC 350 25ºC 300 250 –45ºC 200 150 100 0.2 0.4 0.6 0.8 1 SWITCH CURRENT (A) 3653 G01 Output Current Limit 1 33.2k ILIM 1.15 1.1 1.05 1 0.95 0.9 0.85 0.8 –50 – 100 TEMPERATURE (ºC) 3653 G04 BOOST Pin Current ...
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... V (V) OUT PIN FUNCTIONS V (Pin 1): The V pin supplies current to the LT3653’ internal regulator and the internal power switch. Locally bypass this pin with a capacitor. HVOK (Pin 2): The HVOK pin is a status pin which indi- cates that the internal bias rail is present and that an input undervoltage lockout fault, an overvoltage lockout fault or an over temperature fault are not present ...
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... BLOCK DIAGRAM R V SENSE1 – INTERNAL BIAS REGULATORS, REFERENCE, UVLO AND OVP HVOK TO 5V CHARGER FAULT I LIM CHARGER INTERNAL COMPENSATION 6 LT3653 + Q R – S OSCILLATOR AND SLOPE COMPENSATION – – 0.8V EXPOSED PAD GND BOOST DRIVER D2 I SENSE + R SENSE2 – ...
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... HVOK is a status pin which indicates to the charger that a high voltage input is present and that the LT3653 is ready to start providing power to the system load. When the HVOK pin is low, the LT3653 is not switching and the system output is not supported by the LT3653 regulator ...
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... The input capacitor is required to reduce the resulting volt- age ripple at the LT3653 and to force this very high frequency switching current into a tight local loop, minimizing EMI. Place the capacitor in close proximity to the LT3653 and the catch diode (see the PCB Layout section) ...
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... This is the WALL pin on the LTC4098. The HVOK pin is capable of supplying up to 1mA of drive current. When the HVOK pin is low the LT3653 is not switching and the system output cannot be supported by the LT3653 regulator. See the Typical Applications sec- tion for different confi ...
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... WALL ADAPTER C2 R2 10μF 2. R14 100k R15 NTC 100k PMIC CONTROL L1 = COILCRAFT, MSS6132-472MLC M1 = VISHAY, Si 2333DS D1 = DIODES INC., DFLS240 10 BOOST BUS LT3653 I SENSE V I OUT LIM V GND HVOK C D3 MBR0520 V WALL C ACPR V BVIN2 BUS CLPROG BVIN1 V PROG OUT IDGATE ...
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... BSC 1.35 REF R = 0.115 2.00 0.10 TYP (2 SIDES 0.05 5 TYP 3.00 0.10 (2 SIDES) 4 0.75 0.05 BOTTOM VIEW—EXPOSED PAD 0.00 – 0.05 MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE TOP AND BOTTOM OF PACKAGE LT3653 0.40 0.10 8 1.35 0.10 1.65 0.10 PIN 1 NOTCH R = 0.20 OR 0.25 45 CHAMFER (DCB8) DFN 0106 REV A 1 0.23 0.05 0.45 BSC 1.35 REF 3653f 11 ...
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... Burst Mode is a registered trademark of Linear Technology Corporation.ThinSOT is a trademark of Linear Technology Corporation. Linear Technology Corporation 12 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● BOOST 7.5V TO 30V V IN TRANSIENT C1 LT3653 TO 60V 4.7μF 50V I I LIM R1 V GND HVOK C 27.4k USB ...