LTC4069EDC-4.4#TRM Linear Technology, LTC4069EDC-4.4#TRM Datasheet
LTC4069EDC-4.4#TRM
Specifications of LTC4069EDC-4.4#TRM
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LTC4069EDC-4.4#TRM Summary of contents
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... Tiny 6-Lead (2mm × 2mm) DFN Package APPLICATIONS n Wireless PDAs n Cellular Phones n Portable Electronics , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 6522118, 6700364. TYPICAL APPLICATION Standalone Li-Ion Battery Charger ...
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... ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LTC4069EDC#PBF LTC4069EDC#TRPBF Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based fi nish parts. For more information on lead free part marking, go to: For more information on tape and reel specifi ...
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ELECTRICAL CHARACTERISTICS l The denotes specifi cations which apply over the full operating temperature range, otherwise specifi cations are 5V 3.8V unless otherwise specifi ed. (Note 2) CC BAT NTC SYMBOL PARAMETER ...
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LTC4069 TYPICAL PERFORMANCE CHARACTERISTICS Battery Regulation (Float) Voltage vs Battery Charge Current 4. 25° PROG 4.22 4.21 4.20 4.19 4.18 4.17 4.16 0 100 200 400 300 I (mA) ...
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TYPICAL PERFORMANCE CHARACTERISTICS Undervoltage Lockout Threshold Voltage vs Temperature 4.00 3.75 RISE 3.50 3.25 FALL 3.00 2.75 2.50 – –25 TEMPERATURE (°C) 4069 G16 CHRG Pin Output Low Voltage vs Temperature 140 ...
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LTC4069 PIN FUNCTIONS GND (Pin 1): Ground. CHRG (Pin 2): Open-Drain Charge Status Output. The charge status indicator pin has three states: pull-down, pulse at 2Hz and high impedance state. This output can be used as a logic interface or ...
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SIMPLIFIED BLOCK DIAGRAM – TOO COLD NOM + NTC C2 5 TOO – HOT R NTC R9 + NTC_EN C3 – R10 PROG 0.1V + – C/10 CHRG 2 2.9V BAT ...
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LTC4069 OPERATION temperatures for a given application with the assurance that the charger will automatically reduce the current in worst-case conditions. The charge cycle begins when the voltage at the V rises above 3.5V and approximately 80mV above the BAT ...
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OPERATION not exceed the recharge threshold voltage when the timer ends, the timer resets and a 2.25 hour recharge cycle begins. The CHRG output assumes a strong pull-down state during recharge cycles until C/10 is reached when it transitions to ...
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LTC4069 OPERATION POWER ON TRICKLE CHARGE MODE 1/10 FULL CHARGE CURRENT CHRG STRONG PULL-DOWN 1/4 CHARGE CYCLE (1.125 HOURS) DEFECTIVE BATTERY IS V < 2.9V? BAT BAD BATTERY MODE NO CHARGE CURRENT CHRG PULSES (2Hz) V < Regardless ...
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OPERATION APPLICATIONS INFORMATION Undervoltage Charge Current Limiting (UVCL) The LTC4069 includes undervoltage charge (ΔV current limiting that prevents full charge current until the input supply voltage exceeds approximately 200mV above the battery voltage. This feature is particularly useful if the ...
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LTC4069 APPLICATIONS INFORMATION LTC4069 will demand a charge current higher than the current limit of the voltage supply, the supply voltage will drop to the battery voltage plus 600mA times the “on” resistance of the internal PFET. The “on” resistance ...
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APPLICATIONS INFORMATION battery current as shown in Figure 5. A 10k resistor has been added between the PROG pin and the fi lter capacitor to ensure stability. Power Dissipation The conditions that cause the LTC4069 to reduce charge current through ...
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LTC4069 APPLICATIONS INFORMATION NOM 8.87k – 0.76 • NTC + 6 R1 604Ω – R NTC 10k + 0.35 • – 0.016 • Figure 6. NTC Circuits Thermistors The LTC4069 ...
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... TOP AND BOTTOM OF PACKAGE 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. The cold trip point error depends on the tolerance of the ) ...
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... OUT DC/DC Converter LTC3440 600mA (I ), 2MHz, Synchronous Buck-Boost OUT DC/DC Converter LTC4413 Dual Ideal Diode in DFN ThinSOT is a trademark of Linear Technology Corporation. Linear Technology Corporation 16 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● COMMENTS TM Simple ThinSOT Charger, No Blocking Diode, No Sense Resistor Needed Low Current Version of LTC1734, 50mA ≤ ...