MAX846AEEE Maxim Integrated Products, MAX846AEEE Datasheet
MAX846AEEE
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MAX846AEEE Summary of contents
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... Regulator Provides Reference to µC ADCs —Built-In µC Reset —Controls Low-Cost External PNP Transistor or P-Channel MOSFET Space-Saving 16-Pin QSOP Charging-Current-Monitor Output <1µA Battery Drain when Off ______________Ordering Information PART MAX846AC/D MAX846AEEE *Dice are tested at T __________Typical Operating Circuit 3.5V TO 20V 16 DRV PGND 15 ...
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... CS+, CS- Input Current CS+, CS- Off Input Current 2 _______________________________________________________________________________________ Continuous Power Dissipation (T QSOP (derate 8.3mW/°C above +70°C) ........................667mW Operating Temperature Range MAX846AEEE ....................................................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10sec) .............................+300° 10V 4.5V, V ...
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ELECTRICAL CHARACTERISTICS (continued 10V VL 0mA, V DCIN VL VSET otherwise noted. Typical values are at T PARAMETER VOLTAGE LOOP Voltage-Loop Set Point VSET Common-Mode Input Range CCV Output Impedance Voltage-Loop Load ...
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Cost-Saving Multichemistry Battery-Charger System ELECTRICAL CHARACTERISTICS (Note 10V VL 0mA, V DCIN VL VSET otherwise noted.) PARAMETER VL REGULATOR DCIN Supply Current Output Voltage PWROK Trip Level VL Undervoltage-Lockout Level REFERENCE ...
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Operating Characteristics (T = +25°C, unless otherwise noted.) A CURRENT-SENSE AMPLIFIER TRANSCONDUCTANCE vs. ISET VOLTAGE 1.035 CS+ CS- 1.030 1.025 V = 100mV 1.020 1.015 V = 165mV 1.010 1.005 1.000 V = 200mV ...
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Cost-Saving Multichemistry Battery-Charger System ______________________________________________________________Pin Description PIN NAME Supply Input from External DC Source. 3.7V ≤ DCIN 3.3V, 20mA, 1% Linear-Regulator Output. VL powers the system µC and other components. Bypass GND with a 4.7µF ...
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Voltage/Current Regulator The voltage/current regulator consists of a precision attenuator, voltage loop, current-sense amplifier, and current loop. The attenuator can be pin programmed to set the regulation voltage for one or two Li-Ion cells (4.2V and 8.4V, respectively). The current-sense ...
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Cost-Saving Multichemistry Battery-Charger System DC INPUT 3.5V TO 20V 3.3V VL 3.3V LDO C 4.7 F PGND GND ISET OR DAC 10k TO ADC VL 5nF CCI VL 5nF CCV 2 Li CELL2 1 Li OFF OFFV ON ...
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DCIN 3.7V TO 20V CS+ DCIN VL 100k PWROK ON 0.01 F CCI CCV 0.01 F OFFV 4.7 F Figure 2. Stand-Alone Li-Ion Charger 4.2 1. 20k VSET V where VX is either GND or VL, and V ...
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Cost-Saving Multichemistry Battery-Charger System DCIN 3.7V TO 20V CS+ DCIN CCI CCV GND PGND Figure 3. Desktop Multichemistry Charger Concept Component selection is similar to that of stand-alone operation. By using DACs or µC PWM outputs, the float voltage and ...
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MAX846A 20k 400k VSET 1.65V 2% 1% WITH VOLTAGE OUTPUT DAC Figure 4. VSET Adjustment Methods MAX846A 20k ISET 20k WITH VOLTAGE OUTPUT DAC Figure 5. ISET Adjustment Methods Figure 6. Low-Cost Desktop Multichemistry Charger Concept ______________________________________________________________________________________ Cost-Saving Multichemistry Battery-Charger ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 1996 Maxim Integrated Products ...