LT1513C LINER [Linear Technology], LT1513C Datasheet
LT1513C
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LT1513C Summary of contents
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FEATURES Charger Input Voltage May Be Higher, Equal to or Lower Than Battery Voltage Charges Any Number of Cells Up to 20V 1% Voltage Accuracy for Rechargeable Lithium Batteries 100mV Current Sense Voltage for High Efficiency (LT1513) 0mV Current Sense ...
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... Error Amplifier Source Current Error Amplifier Sink Current Operating Junction Temperature Range 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 ...
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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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LT1513/LT1513 APPLICATIONS INFORMATION The suggested way to control unity loop frequency is to increase the filter time constant on the I Figures 1 and 7). The filter resistor cannot be arbitrarily increased because high values will affect charging ...
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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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PACKAGE DESCRIPTION 0.060 0.256 (1.524) (6.502) 0.060 0.183 (1.524) (4.648) 0.075 (1.905) 0.300 (7.620) BOTTOM VIEW OF DD PAK HATCHED AREA IS SOLDER PLATED COPPER HEAT SINK 0.390 – 0.415 (9.906 – 10.541) 0.460 – 0.500 (11.684 – 12.700) 0.040 ...
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LT1513/LT1513-2 RELATED PARTS PART NUMBER DESCRIPTION LT1239 Backup Battery Management System ® LTC 1325 Microprocessor Controlled Battery Management System LT1510 1.5A Constant-Current/Constant-Voltage Battery Charger LT1511 3.0A Constant-Current/Constant-Voltage Battery Charger with Input Current Limiting LT1512 SEPIC Constant-Current/Constant-Voltage Battery Charger Step-Up/Step-Down Charger ...