LTC3586EUFE#PBF Linear Technology, LTC3586EUFE#PBF Datasheet
LTC3586EUFE#PBF
Specifications of LTC3586EUFE#PBF
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LTC3586EUFE#PBF Summary of contents
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... The LTC3586/LTC3586-1 are available in a low profile (0.75mm) 38-pin 4mm × 6mm QFN package. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. PowerPath and Bat-Track are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. ...
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... Junction Temperature (Note 3) ............................. 125°C Storage Temperature Range ...................–65°C to 125°C orDer inForMaTion LEAD FREE FINISH TAPE AND REEL LTC3586EUFE#PBF LTC3586EUFE#TRPBF LTC3586EUFE-1#PBF LTC3586EUFE-1#TRPBF Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based finish parts. ...
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5V 1k 3.01k, unless otherwise noted. OUT4 PROG CLPROG SYMBOL PARAMETER h (Note 4) Ratio of Measured V Current to CLPROG BUS CLPROG Program Current ...
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LTC3586/LTC3586-1 elecTrical characTerisTics temperature range, otherwise specifications are 5V 1k 3.01k, unless otherwise noted. OUT4 PROG CLPROG SYMBOL PARAMETER R Battery Charger Power FET ON_CHG On-Resistance (Between V T Junction Temperature in ...
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... NMOS Switch Current Limit LIMF4 V Output Voltage Adjust Range OUT4 V Overvoltage Shutdown OV4 ∆V Overvoltage Shutdown Hysteresis OV4 Burst Mode is a registered trademark of Linear Technology Corporation. LTC3586/LTC3586-1 The denotes the specifications which apply over the full operating l = 25° 5V, BAT = 3.8V BUS IN1 ...
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LTC3586/LTC3586-1 elecTrical characTerisTics temperature range, otherwise specifications are 5V 1k 3.01k, unless otherwise noted. OUT4 PROG CLPROG SYMBOL PARAMETER R PMOS R DS(ON)P4 DS(ON) R NMOS R DS(ON)N4 DS(ON) I PMOS Switch ...
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Typical perForMance characTerisTics USB Limited Battery Charge Current vs Battery Voltage 700 LTC3586 600 500 BUS PROG CLPROG 400 300 LTC3586-1 200 100 5x USB SETTING, BATTERY CHARGER SET FOR 1A ...
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LTC3586/LTC3586-1 Typical perForMance characTerisTics Battery Charge Current vs Temperature 600 500 400 THERMAL REGULATION 300 200 100 PROG 10x MODE 0 –40 – 100 TEMPERATURE (°C) 3586 G13 Oscillator Frequency vs Temperature ...
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Typical perForMance characTerisTics Switching Regulators 1, 2 Pulse- Skip Mode Quiescent Currents 325 V = 3.8V IN1,2 300 V = 2.5V OUT1, 2 (CONSTANT FREQUENCY) 275 250 225 V = 1.25V OUT1,2 (PULSE SKIPPING) 200 – 40 – ...
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LTC3586/LTC3586-1 Typical perForMance characTerisTics Buck-Boost Regulator Burst Mode Operation Quiescent Current 14.0 13 4.5V IN3 13 IN1 V = 3.6V IN3 12.5 12.0 11.5 11.0 85 105 –55 –35 – TEMPERATURE ...
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FuncTions (Pins 1, 2): Logic Inputs. I LIM0 LIM1 control the current limit of the PowerPath switching regulator. See Table 1. Table 1. USB Current Limit Settings ( USB SETTING LIM1 LIM0 0 ...
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LTC3586/LTC3586-1 pin FuncTions EN2 (Pin 20): Digital Input. This input enables the buck switching regulator 2. EN1 (Pin 21): Digital Input. This input enables the buck switching regulator 1. V (Pin 22): Power Input for Switching Regulator 4 IN4 (Boost). ...
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DiagraM 35 BUS CLPROG 4 BATTERY NTC 5 TEMPERATURE MONITOR CHRG 30 CHARGE STATUS FAULT 38 FAULT LOGIC EN1 21 EN2 20 EN3 18 EN4 33 MODE LIM0 I 2 LIM1 V 22 IN4 ...
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LTC3586/LTC3586-1 operaTion Introduction The LTC3586/LTC3586-1 are highly integrated power management ICs which include a high efficiency switch mode PowerPath controller, a battery charger, an ideal diode, an always-on LDO, two 400mA buck switching regulators buck-boost switching regulator, and ...
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The current at CLPROG is a fraction (h V current. When a programming resistor and an av- BUS eraging capacitor are connected from CLPROG to GND, the voltage on CLPROG represents the average input current of the PowerPath switching ...
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LTC3586/LTC3586-1 operaTion Suspend LDO If the LTC3586/LTC3586-1 are configured for USB suspend mode, the switching regulator is disabled and the suspend LDO provides power to the V pin (presuming there is OUT power available This LDO will ...
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Once the battery voltage is above 2.85V, the battery charger begins charging in full power constant-current mode. The current delivered to the battery will try to reach 1022V Depending on available input power and external PROG load ...
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LTC3586/LTC3586-1 operaTion To make the CHRG pin easily recognized by both humans and microprocessors, the pin is either LOW for charging, HIGH for not charging switched at high frequency (35kHz) to indicate the two possible faults, unresponsive ...
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Thermal Regulation To optimize charging time, an internal thermal feedback loop may automatically decrease the programmed charge current. This will occur if the die temperature rises to approximately 110°C. Thermal regulation protects the LTC3586/LTC3586-1 from excessive temperature due to ...
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LTC3586/LTC3586-1 operaTion BAT < 2.85V CHARGE AT 100V/R (C/10 RATE) PROG RUN EVENT TIMER NO TIMER > 30 MINUTES YES INHIBIT CHARGING INDICATE BATTERY FAULT AT CHRG NO BAT > 2.85V YES Figure 4. Flow Chart for Battery Charger Operation ...
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V INx L SWx LTC3586 LTC3586-1 FBx R2 GND 3586 F05 Figure 5. Buck Converter Application Circuit and the input capacitance of the FBx pin and also helps to improve transient response for output voltages much ...
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LTC3586/LTC3586-1 operaTion Buck Regulator Dropout Operation It is possible for a buck regulator’s input voltage, V approach its programmed output voltage (e.g., a battery voltage of 3.4V with a programmed output voltage of 3.3V). When this happens, the PMOS switch ...
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B always off), to step-up the input voltage to the programmed output programmed V , then the converter will operate in OUT3 4-switch mode. In this case the switches sequence through the pattern ...
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LTC3586/LTC3586-1 operaTion Zero Current Comparator The zero current comparator monitors the inductor current to the output and shuts off the synchronous rectifier once the current drops to approximately 65mA. This prevents the inductor current from reversing in polarity thereby improving ...
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PowerPath CONTROLLER APPLICATIONS SECTION CLPROG Resistor and Capacitor As described in the High Efficiency Switching PowerPath Controller section, the resistor on the CLPROG pin deter- mines the average input current limit when the switching regulator is set to ...
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LTC3586/LTC3586-1 applicaTions inForMaTion Over-Programming the Battery Charger The USB high power specification allows for drawn from the USB port (5V • 500mA). The PowerPath switching regulator transforms the voltage at V above the voltage at ...
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By using a bias resistor different in value from NOM R25, the hot and cold trip points can be moved in either direction. The temperature span will change somewhat due to the non-linear behavior of the ...
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LTC3586/LTC3586-1 applicaTions inForMaTion USB Inrush Limiting When a USB cable is plugged into a portable product, the inductance of the cable and the high-Q ceramic input capacitor form an L-C resonant circuit. If the cable does not have adequate mutual ...
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Choose an inductor with a DC current rating at least 1.5 times larger than the maximum load current to ensure that the inductor does not saturate during normal operation. If output short circuit is a possible ...
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LTC3586/LTC3586-1 applicaTions inForMaTion Table 7. Recommended Inductors for Buck-Boost Regulator MAX MAX INDUCTOR L I DCR SIZE × W × H) TYPE (µH) (A) (Ω) LPS4018 3.3 2.2 0.08 3.9 × 3.9 × 1.7 2.2 2.5 ...
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The compensation network depicted in Figure 9 yields the transfer function • 3 • OUT 3 1 • ...
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LTC3586/LTC3586-1 applicaTions inForMaTion + 0.8V ERROR FB3 AMP – Figure 8. Error Amplifier with Type I Compensation + 0.8V ERROR FB3 AMP – Figure 9. Error Amplifier with Type III Compensation ...
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Furthermore, due to its high frequency switching circuitry imperative that the input capacitors, inductors and output capacitors be as close to the LTC3586/LTC3586-1 as possible and that there be an unbroken ground plane under the LTC3586/LTC3586-1 ...
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... ON THE 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. UFE Package 38-Lead Plastic QFN (4mm × ...
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Rev B) REV DATE DESCRIPTION B 03/10 Changes to Absolute Maximum Ratings Section Changes to Electrical Characteristics Section Changes to Pin Functions Changes to Related Parts Section LTC3586/LTC3586-1 PAGE NUMBER ...
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... LOADS 510 C2 22µF RED 3.3V 1A SYSTEM RAIL/ I/O 121k 33pF 324k 22µF 2.2µF 105k 1.8V 400mA I/O/MEMORY 10pF 10µF 1µF MICROPROCESSOR 1.6V 400mA CORE 10pF 10µF 1µF 10µF LT 0309 REV B • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 2008 3586fb ...