LTC4090EDJC#PBF Linear Technology, LTC4090EDJC#PBF Datasheet
LTC4090EDJC#PBF
Specifications of LTC4090EDJC#PBF
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LTC4090EDJC#PBF Summary of contents
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... L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Bat-Track is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. 0.47μF 6.8μH SW 22μ ...
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... Junction Temperature ........................................... 110°C Storage Temperature Range .......................–65 to 125°C ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LTC4090EDJC#PBF LTC4090EDJC#TRPBF LTC4090EDJC-5#PBF LTC4090EDJC-5#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 temperature range, otherwise specifi cations are 100k and SUSP = 0V, unless otherwise noted. PROG CLPROG SYMBOL PARAMETER V Input Current Limit Enable Threshold CLEN Voltage ( ...
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LTC4090/LTC4090-5 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are 100k and SUSP = 0V, unless otherwise noted. PROG CLPROG SYMBOL PARAMETER t TIMER Accuracy TIMER Recharge Time Low Battery Trickle Charge Time T ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are 100k and SUSP = 0V, unless otherwise noted. PROG CLPROG SYMBOL PARAMETER NTC I VNTC Pin Current VNTC V VNTC Bias Voltage VNTC I NTC ...
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LTC4090/LTC4090-5 TYPICAL PERFORMANCE CHARACTERISTICS Charging from USB BAT BAT 600 LOAD OUT HPWR = 100k 500 PROG CLPROG 400 300 200 HPWR = 0V ...
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TYPICAL PERFORMANCE CHARACTERISTICS High Voltage Regulator Switch Frequency 1100 1000 900 800 700 600 500 –50 – 100 125 TEMPERATURE (°C) 4090 G13 High Voltage Regulator Switch Current Limit 4.0 3.5 3.0 2.5 2.0 1.5 1.0 ...
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LTC4090/LTC4090-5 TYPICAL PERFORMANCE CHARACTERISTICS LTC4090 Input Connect Waveforms V IN 5V/DIV V OUT 5V/DIV I IN 0.5A/DIV I BAT 0.5A/DIV 1ms/DIV 4090 G22 V = 3.85V BAT I = 100mA OUT LTC4090 High Voltage Input Connect Waveforms V HVIN 10V/DIV ...
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PIN FUNCTIONS SYNC (Pin 1): External Clock Synchronization Input. See synchronizing section in the Applications Information section. Ground pin when not used. PG (Pin 2): Open Collector Output of an Internal Compara- tor. PG remains low until the HVOUT pin ...
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LTC4090/LTC4090-5 PIN FUNCTIONS CLPROG (Pin 14): Current Limit Program and Input Cur- rent Monitor. Connecting a resistor, R programs the input to output current limit. The current limit is programmed as follows: 1000V ( CLPROG In ...
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BLOCK DIAGRAM HVIN 10 INTERNAL REFERENCE HVEN 10 SOFT-START SYNC CLAMP CURRENT 1000 CL CONTROL CLPROG ...
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... OUT to charge the battery and/or supply power to the application. The LTC4090’s Bat-Track maintains ap- proximately 300mV between the OUT pin and the BAT pin, while the LTC4090-5 provides a fi xed 5V output. PowerPath is a trademark of Linear Technology Corporation Q1 HIGH VOLTAGE BUCK REGULATOR + 4 ...
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... Burst Mode light load situations. Between bursts, all circuitry associated with controlling the output switch is shut down reducing CLPROG the input supply current. Burst Mode is a registered trademark of Linear Technology Corporation LTC4090/LTC4090-5 , enables an RS fl ip error amplifi er ...
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LTC4090/LTC4090-5 OPERATION I IN 500 400 I LOAD 300 200 100 I BAT (CHARGING) 0 100 200 0 300 400 500 I I BAT LOAD(mA) (IDEAL DIODE) 4090 F02a (a) High Power Mode/Full Charge R = 100k and R = ...
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OPERATION Suspend Mode When SUSP is pulled above V the LTC4090/LTC4090-5 IH enter suspend mode to comply with the USB specifi cation. In this mode, the power path between IN and OUT is put in a high impedance state to ...
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LTC4090/LTC4090-5 OPERATION where V is the PROG pin voltage and R PROG total resistance from the PROG pin to ground. Keep in mind that when the LTC4090/LTC4090-5 are powered from the IN pin, the programmed input current limit takes precedence ...
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OPERATION For example, if the full charge current is programmed to 500mA with a 100k PROG resistor the CHRG pin will change state at a battery charge current of 50mA. Note: The end-of-charge (EOC) comparator that moni- tors the charge ...
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LTC4090/LTC4090-5 APPLICATIONS INFORMATION USB and 5V Wall Adapter Power Although the LTC4090/LTC4090-5 are designed to draw power from a USB port, a higher power 5V wall adapter can also be used to power the application and charge the battery (higher ...
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APPLICATIONS INFORMATION minimum switch-off time (~150ns). These equations show that duty cycle range increases when switching frequency is decreased. A good choice of switching frequency should allow ad- equate input voltage range (see next section) and keep the inductor and ...
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LTC4090/LTC4090-5 APPLICATIONS INFORMATION Catch Diode The catch diode conducts current only during switch-off time. Average forward current in normal operation can be calculated from – V HVIN HVOUT =I I • D(AVG) HVOUT V HVIN where I is ...
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APPLICATIONS INFORMATION High Voltage Regulator Frequency Compensation The LTC4090/LTC4090-5 high voltage regulator uses current mode control to regulate the output. This simpli- fi es loop compensation. In particular, the high voltage regulator does not require the ESR of the output ...
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LTC4090/LTC4090-5 APPLICATIONS INFORMATION If low quiescent current is not required, the LTC4090/ LTC4090-5 can operate in pulse-skipping mode. The benefi this mode is that the LTC4090/LTC4090-5 will enter full frequency standard PWM operation at a lower output load ...
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APPLICATIONS INFORMATION designed to work with thermistors whose resistance-tem- perature characteristics follow Vishay Dale’s R-T curve 2. The Vishay NTHS0603N02N1002J is an example of such a thermistor. However, Vishay Dale has many thermistor products that follow the R-T curve 2 ...
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LTC4090/LTC4090-5 APPLICATIONS INFORMATION equations can be used to easily calculate a new value for the bias resistor: r HOT = R • R NOM 25C 0.409 r COLD = R • R NOM 25C 2.815 where r and r are ...
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APPLICATIONS INFORMATION be estimated by calculating the regulator power loss from an effi ciency measurement, and subtracting the catch diode loss 1– η • 5V • BAT OUT ( ) ...
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LTC4090/LTC4090-5 APPLICATIONS INFORMATION IN and HVIN Bypass Capacitor Many types of capacitors can be used for input bypassing; however, caution must be exercised when using multilayer ceramic capacitors. Because of the self-resonant and high Q characteristics of some types of ...
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... ON 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. DJC Package 22-Lead Plastic DFN (6mm × ...
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... Controller and High Effi ciency Li-Ion Battery Charger LTC4411/LTC4412 Low Loss PowerPath Controller in ThinSOT LTC4412HV High Voltage Power Path Controllers in ThinSOT ThinSOT is a trademark of Linear Technology Corporation. 28 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● COMMENTS Standalone Charger with Programmable Timer ...