LT1513IR Linear Technology, LT1513IR Datasheet
LT1513IR
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LT1513IR Summary of contents
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... Maximum switch current on the LT1513 is 3A. This allows battery charging currents for a single lithium-ion cell. Accuracy constant-voltage mode is perfect for lithium battery applications. Charging current can be easily programmed for all battery types. , LTC and LT are registered trademarks of Linear Technology Corporation. L1A* • C2** 4.7 F † ...
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... LT1513C ............................................... 125 C LT1513I ............................................ – 125 C Short Circuit ......................................... 150 C Storage Temperature Range ................ – 150 C Lead Temperature (Soldering, 10 sec)................. 300 ORDER PART NUMBER LT1513CR LT1513-2CR LT1513IR LT1513-2IR 7-LEAD TO-220 T = 125 C, JMAX and S/S pins open, unless otherwise noted. SW CONDITIONS Measured at FB Pin V = 0.8V ...
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ELECTRICAL C HARA TERISTICS 5V 0.6V 0V REF FB SYMBOL PARAMETER Error Amplifier Clamp Voltage A Error Amplifier Voltage Gain V V Pin Threshold C ...
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LT1513/LT1513 TYPICAL PERFORMANCE CHARACTERISTICS Switch Saturation Voltage vs Switch Current 1.0 150 C 0.9 100 0.8 0.7 0.6 0.5 –55 C 0.4 0.3 0.2 0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 ...
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PIN FUNCTIONS V (Pin 1): The compensation pin is primarily used for C frequency compensation, but it can also be used for soft starting and current limiting the output of the error amplifier and the ...
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LT1513/LT1513-2 W BLOCK DIAGRAM SHUTDOWN S/S DELAY AND RESET SYNC + I FBA 4k – 50k* – – 1.245V REF *REMOVE ON LT1513-2 U OPERATION The LT1513 is a current mode switcher. This means ...
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U U APPLICATIONS INFORMATION The LT1513 battery charger chip specifically opti- mized to use the SEPIC converter topology. A complete charger schematic is shown in Figure 1. The SEPIC topology has unique advantages for battery charging. It ...
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LT1513/LT1513 APPLICATIONS INFORMATION shown in the maximum charging current graph. Higher inductance values give slightly higher maximum charging current, but are larger and more expensive. A low loss toroid ® core such as Kool M , Molypermalloy or ...
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U U APPLICATIONS INFORMATION current Schottky diodes have relatively high leakage cur- rents ( 500 A) even at room temperature. The latest very-low-forward devices have especially high leakage cur- rents. It has been noted that surface mount versions ...
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LT1513/LT1513 APPLICATIONS INFORMATION Programmed Charging Current LT1513-2 charging current can be programmed with a DC voltage source or equivalent PWM signal, as shown in Figure 5. In constant-current mode, I ground. The I voltage across R5 is balanced ...
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U U APPLICATIONS INFORMATION (from the Electrical Characteristics). Amplifier output resis- tance is modeled with a 330k resistor. The power stage (modulator section) of the LT1513 is modeled as a transcon- ductance whose value is 4(V )/( simplified ...
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... R3. More Help R 5 Linear Technology Field Application Engineers have a CAD spreadsheet program for detailed calculations of circuit operating conditions. In addition, our Applications Depart- ment is always ready to lend a helping hand. The LT1371 data sheet may also be helpful. The LT1513 is identical except for the current amplifier circuitry ...
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U TYPICAL APPLICATIONS Lithium-Ion Battery Charger with Switchable Charge Current Many battery chemistries require several constant-current settings during the charging cycle. The circuit shown in Figure 8 uses the LT1513-2 to provide switchable 1.35A and 0.13A constant-current modes. The circuit ...
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LT1513/LT1513-2 U TYPICAL APPLICATIONS This Cold Cathode Fluorescent Lamp driver uses a Royer class self-oscillating sine wave converter to driver a high voltage lamp with an AC waveform. CCFL Royer converters have significantly degraded efficiency if they must operate at ...
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... Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. U Dimensions in inches (millimeters) unless otherwise noted ...
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... Can Charge, Discharge and Gas Gauge NiCd, NiMH and Pb-Acid Batteries with Software Charging Profiles Step-Down Charger for Li-Ion, NiCd and NiMH Step-Down Charger that Allows Charging During Computer Operation and Prevents Wall-Adapter Overload LT/TP 0198 REV A 4K • PRINTED IN THE USA LINEAR TECHNOLOGY CORPORATION 1996 sn1513 1513fas ...