LTC4080EDD#TRPBF Linear Technology, LTC4080EDD#TRPBF Datasheet
LTC4080EDD#TRPBF
Specifications of LTC4080EDD#TRPBF
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LTC4080EDD#TRPBF Summary of contents
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... The LTC4080 is available in 10-lead, low profi le (0.75 mm) 3mm × 3mm DFN and MSOP Exposed Pad packages. , LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 6522118. ...
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... EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LTC4080EDD#PBF LTC4080EDD#TRPBF LTC4080EMSE#PBF LTC4080EMSE#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. ...
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ELECTRICAL CHARACTERISTICS ture range, otherwise specifi cations are at T SYMBOL PARAMETER Battery Charger V V Regulated Output Voltage FLOAT BAT I Current Mode Charge Current BAT V V Undervoltage Lockout Voltage UVLO_CHRG CC V PROG Pin Servo Voltage PROG ...
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LTC4080 ELECTRICAL CHARACTERISTICS ture range, otherwise specifi cations are at T SYMBOL PARAMETER R PMOS Switch On-Resistance ON_P R NMOS Switch On-Resistance ON_N I PMOS Switch Current Limit LIM_P I NMOS Switch Current Limit LIM_N I NMOS Zero Current in ...
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TYPICAL PERFORMANCE CHARACTERISTICS (T = 25° 5V 3.8V, unless otherwise specifi ed BAT Battery Regulation (Float) Voltage vs Charge Current 4. PROG 4.20 4.19 4.18 4.17 4.16 4.15 4.14 4.13 200 ...
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LTC4080 TYPICAL PERFORMANCE CHARACTERISTICS (T = 25° 5V 3.8V, unless otherwise specifi ed BAT ⎯ C ⎯ H ⎯ R ⎯ G and ⎯ A ⎯ C ⎯ P ⎯ R Pin Output Low ...
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TYPICAL PERFORMANCE CHARACTERISTICS (T = 25° 5V 3.8V, unless otherwise specifi ed BAT No-Load Buck Input Current (Burst Mode Operation) vs Temperature 10μ 4.2V BAT C = 4.7μF 30 ...
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LTC4080 TYPICAL PERFORMANCE CHARACTERISTICS specifi ed) Output Voltage Transient Step Response (PWM Mode) V OUT 20mV/DIV AC COUPLED I LOAD 250mA/DIV 4080 G25 50μs/DIV Buck V Soft-Start OUT (I = 50mA) LOAD V OUT 1V/DIV 0V V ...
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CTIO S BAT (Pin 1): Charge Current Output and Buck Regulator Input. Provides charge current to the battery and regulates the fi nal fl oat voltage to 4.2V. An internal precision resistor divider from this ...
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LTC4080 W BLOCK DIAGRA + 3 CHARGER EN_CHRG C3 SHUTDOWN – 0.82V R EN PROG 0.1V + – CHRG PULSE LOGIC + 2.9V C2 BADBAT – BAT 4 PROG R + PROG C4 – 5 ACPR + C5 ...
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U OPERATIO The LTC4080 is a full-featured linear battery charger with an integrated synchronous buck converter designed pri- marily for handheld applications. The battery charger is capable of charging single-cell 4.2V Li-Ion batteries. The buck converter is powered from the ...
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LTC4080 U OPERATIO If the die temperature starts to creep up above 115°C due to internal power dissipation, the transconductance amplifi er, TA, limits the die temperature to approximately 115°C by reducing the charge current. Diode D3 ensures that TA ...
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U OPERATIO from zero to full-scale current over a period of approximately 180μs. This has the effect of minimizing the transient cur- rent load on the power supply during start-up. Timer and Recharge The LTC4080’s battery charger has an internal ...
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LTC4080 U OPERATIO nominal value, the regulator wakes up and the inductor current resumes swinging between I output capacitor recharges and causes the regulator to re-enter the SLEEP state if the output load remains light enough. The frequency of this ...
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U OPERATIO Dropout Operation When the BAT pin voltage approaches V of the switching regulator approaches 100%. When V is approximately equal the regulator is said to be OUT in dropout. In dropout, the main switch (MP2) ...
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LTC4080 U U APPLICATIO S I FOR ATIO Undervoltage Charge Current Limiting (UVCL) USB powered systems tend to have highly variable source impedances (due primarily to cable quality and length). A transient load combined with such impedance can easily trip ...
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U U APPLICATIO S I FOR ATIO Where V is the regulated output of the switching OUT is the regulator load and η is the regulator regulator, I OUT effi ciency at that particular load not necessary to ...
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LTC4080 U U APPLICATIO S I FOR ATIO reasonable starting point for setting ripple current is ΔI =0.3 • where I is the peak switch current limit. LIM LIM The largest ripple current occurs at the maximum input ...
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... LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX 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. ...
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... Synchronous Buck-Boost OUT DC/DC Converter TM LTC4411/LTC4412 Low Loss PowerPath Controller in ThinSOT LTC4413 Dual Ideal Diode in DFN ThinSOT and PowerPath are trademarks of Linear Technology Corporation. 20 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 R3 510Ω ...