DC1645A-B Linear Technology, DC1645A-B Datasheet
DC1645A-B
Specifications of DC1645A-B
Related parts for DC1645A-B
DC1645A-B Summary of contents
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... Automotive and Heavy Equipment n Professional Video/Camera Chargers L, LT, LTC, LTM, Linear Technology, Linear logo, μModule and PolyPhase are registered trademarks and PowerPath is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners TYPICAL APPLICATION Standalone Single Cell 2A Li-Ion Battery Charger with C/10 Termination from 6V to 32V Input LTM8061-4 ...
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LTM8061 ABSOLUTE MAXIMUM RATINGS (Note ....................................................40V INA INC/CLP IN RUN, CHRG, FAULT ...................................V TMR, RNG/SS, NTC .................................................2.5V BIAS, BAT .................................................................10V Internal Operating Temperature (Note 2) ................................................................. 125°C Maximum Body Solder Temperature ..................... 245°C ORDER ...
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ELECTRICAL CHARACTERISTICS operating temperature range, otherwise specifi cations are at T PARAMETER V Operating Voltage IN V Start Voltage IN V OVLO Threshold IN OVLO Hysteresis UVLO Threshold IN V UVLO Hysteresis /CLP ...
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LTM8061 ELECTRICAL CHARACTERISTICS Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The LTM8061E ...
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TYPICAL PERFORMANCE CHARACTERISTICS Input Current 8.2V BAT BAT 1600 1400 1200 V = 12V INA 1000 800 600 400 V = 24V INA 200 0 0 500 1500 1000 I (mA) BAT 8061 G07 ...
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LTM8061 TYPICAL PERFORMANCE CHARACTERISTICS Input Standby Current vs Temperature, 4.2V BAT 12V INA 24V INA –50 0 100 50 TEMPERATURE (°C) 8061 G16 Temperature Rise ...
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PIN FUNCTIONS GND (Bank 1): Power and Signal Ground Return. BAT (Bank 2): Battery Charge Current Output Bus. The charge function operates to achieve the final float voltage at this pin. The auto-restart feature initiates a new charge cycle when ...
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LTM8061 PIN FUNCTIONS RNG/SS (Pin H7): Charge Current Programming/Soft- Start Pin. This pin allows the maximum charge current to be reduced from the default 2A level, and can be used to employ a soft-start function. This pin has an effective ...
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BLOCK DIAGRAM V V /CLP INA INC 0.1μF 0.1μF INTERNAL COMPENSATION RUN RNG/SS TMR NTC V IN CURRENT MODE BATTERY MANAGEMENT CONTROLLER FAULT CHRG GND LTM8061 SENSE BAT 8.2μH RESISTOR 10μF BIAS 8061 BD 8061f 9 ...
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LTM8061 APPLICATIONS INFORMATION Overview The LTM8061 is a complete monolithic, mid-power, Li-Ion battery charger, addressing high input voltage applications with solutions that use a minimum of external components. The product is available in four variants: 4.1V, 4.2V, 8.2V and 8.4V ...
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APPLICATIONS INFORMATION BATTERY VOLTAGE BATTERY CHARGE CURRENT CHRG FAULT RUN Figure 1. Typical C/10 Terminated Charge Cycle (TMR Grounded, Time Not to Scale) BATTERY VOLTAGE BATTERY CHARGE CURRENT CHRG FAULT RUN Figure 2. Typical EOC (Timer-Based) Terminated Charge Cycle (Capacitor ...
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... ESR of the battery, the output may oscillate if no battery is present. 12 The optimum ESR is about 100mΩ, but ESR values both higher and lower will work. Table 1 shows a sample of parts verifi Linear Technology: Table 1. Recommended BAT Capacitors . A PART NUMBER IN ...
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APPLICATIONS INFORMATION A 1.5A system limit, for example, would use a 33mΩ sense resistor. Figure 4 gives an example of the system current for the situation where the input current happens to be 1A, and then gets reduced as the ...
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LTM8061 APPLICATIONS INFORMATION RNG/SS: Soft-Start Soft-start functionality is also supported by the RNG/SS pin. 50μA is sourced from the RNG/SS pin, so connect- ing a capacitor from the RNG/SS pin to ground (C in Figure 7) creates a linear voltage ...
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APPLICATIONS INFORMATION Termination at the end of the timer cycle only occurs if the charge cycle was successful. A successful charge cycle occurs when the battery is charged to within 2.5% of the full-charge float voltage charge cycle ...
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LTM8061 APPLICATIONS INFORMATION PCB Layout Most of the headaches associated with PCB layout have been alleviated or even eliminated by the high level of LTM8061 integration. The LTM8061 is nevertheless a switching power supply, and care must be taken to ...
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APPLICATIONS INFORMATION of the LTM8061 can ring to more than twice the nominal input voltage, possibly exceeding the LTM8061’s rating and damaging the part. If the input supply is poorly con- trolled or the user will be plugging the LTM8061 ...
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LTM8061 PACKAGE DESCRIPTION bbb // 3.810 2.540 1.5875 1.270 0.9525 0.000 1.270 2.540 3.4925 3.810 4.1275 8061f ...
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... PACKAGE PHOTOGRAPH 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 representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. Table 3. Pin Assignment Table ...
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... LGA OUT ≤ 5V, 6.25mm × 6.25mm × 2.32mm LGA OUT ≤ 5V, 9mm × 11.25mm × 2.82mm LGA, OUT ≤ 5V, 9mm × 11.25mm × 2.82mm LGA, OUT LT 0910 • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2010 8061f ...