LTC4006EGN-6 Linear Technology, LTC4006EGN-6 Datasheet
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LTC4006EGN-6
Specifications of LTC4006EGN-6
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LTC4006EGN-6 Summary of contents
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... 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 5723970. ...
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... SHDN CLN, DCIN U W INFORMATION TOP VIEW ORDER PART 1 16 INFET NUMBER 2 15 BGATE LTC4006EGN PGND LTC4006EGN TGATE LTC4006EGN CLN 6 11 CLP GN PART MARKING 7 10 BAT 8 9 CSP 40062 GN PACKAGE 40064 16-LEAD PLASTIC SSOP 40066 = 125°C, θ = 110°C/W JA http://www.linear.com/leadfree/ = 12V unless otherwise noted ...
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ELECTRICAL CHARACTERISTICS temperature range (Note 4), otherwise specifications are at T SYMBOL PARAMETER Current Comparators I and I CMP REV I Maximum Current Sense Threshold (V TMAX I Reverse Current Threshold (V TREV CSP Current Sense Amplifier, CA2 Transconductance Source ...
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LTC4006 ELECTRICAL CHARACTERISTICS temperature range (Note 4), otherwise specifications are at T SYMBOL PARAMETER Oscillator f Regulator Switching Frequency OSC f Regulator Switching Frequency in Drop Out MIN DC Regulator Maximum Duty Cycle MAX Gate Drivers (TGATE, BGATE) V High ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS Disconnect/Reconnect Battery (Load Dump) 3A STEP 1A STEP V FLOAT 1V/(DIV) LOAD STATE DISCONNECT LOAD CURRENT = 1A, 2A, 3A DCIN = 20V LTC4006-2 Efficiency at 19VDC V 100 LTC4006 ...
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LTC4006 CTIO S R (Pin 4): Timer Resistor. The timer period is set by T placing a resistor GND. RT The timer period (1hour • R TIMER If this ...
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W BLOCK DIAGRA V IN DCIN 1 0.1µF 5.8V INFET Q3 16 ACP/SHDN 3 GND 5 5.1k CLP – 15nF CL1 CL 100mV CLN + 12 OSCILLATOR WATCH DOG 20µF DETECT TGATE Q1 13 BGATE Q2 15 PGND ...
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LTC4006 U OPERATIO Overview The LTC4006 is a synchronous current mode PWM step- down (buck) switcher battery charger controller. The charge current is programmed by the sense resistor (R between the CSP and BAT pins. The final float voltage is ...
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U OPERATIO Table 1. Truth Table for LTC4006 Operation MODE Shut Down by Low Adapter Voltage Conditioning a Depleted Battery Normal Charging Input Current Limited Charging Charger Paused Due to Thermistor Out of Range Shut Down by ACP/SHDN Pin Terminated ...
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LTC4006 U OPERATIO Table 2. Truth Table for LTC4006 Operation (Supplemental) FROM TO NUMBER STATE STATE MODE 1 Any MSD Shut Down by Low Adapter Voltage 2 MSD SD Charge Shutdown 3 SD, SD Shut Down by Undervoltage Lockout CONDITION, ...
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U OPERATIO be inhibited not already active. If the charging current decreases below 10% to 15% of programmed current, while engaged in input current limiting, BGATE will be forced low to prevent the charger from discharging the ...
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LTC4006 U U APPLICATIO S I FOR ATIO Charger Current Programming The basic formula for charging current is: 100 CHARGE MAX ( ) R SENSE Table 3. Recommended R Resistor Values SENSE I (A) R (Ω) 1% ...
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U U APPLICATIO S I FOR ATIO Soft-Start The LTC4006 is soft started by the 0.12µF capacitor on the I pin. On start-up, I pin voltage will rise quickly to 0.5V then ramp rate set ...
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LTC4006 U U APPLICATIO S I FOR ATIO Table 4 MAXIMUM INPUT AVERAGE CURRENT (A) VOLTAGE (V) ≤ > 20 ≤ > 20 ≤ > 20 ≤ > ...
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U U APPLICATIO S I FOR ATIO Example 19V 345kHz, Q DCIN OSC 292mW I = 5mA DCIN Adapter Limiting An important feature of the LTC4006 is the ability to automatically adjust charging ...
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LTC4006 U U APPLICATIO S I FOR ATIO LTC4006 R9 NTC 6 C7 Figure 10. Voltage Divider Thermistor Network you, then simply set TH(LOW) If you are using a thermistor that doesn’t have a 1:7 HIGH/ LOW ...
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U U APPLICATIO S I FOR ATIO 100k V IN Q1A TGATE INDUCTOR Figure 12. Optional Simple High Efficiency Battery Discharge Path 0V keeping Q1B in the off state while P-channel MOSFET Q1A is on were to suddenly ...
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LTC4006 U U APPLICATIO S I FOR ATIO 4. Place the output current sense resistor right next to the inductor output but oriented such that the IC’s current sense feedback traces going to resistor are not long. The feedback traces ...
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... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 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 represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
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... High Efficiency, Programmable Voltage/Current Battery Charger LTC4100 Smart Battery Charger Controller TM LTC4412 PowerPath Ideal Diode or Controller No R and PowerPath are trademarks of Linear Technology Corporation. SENSE Linear Technology Corporation 20 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● 2A Li-Ion Battery Charger ...