MAX1647EAP Maxim Integrated Products, MAX1647EAP Datasheet
MAX1647EAP
Specifications of MAX1647EAP
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MAX1647EAP Summary of contents
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... Intel/Duracell Level 2 Smart Battery Compliant (MAX1647) o 4A, 2A Maximum Battery-Charge Current o 11-Bit Control of Charge Current 18V Battery Voltage o 10-Bit Control of Voltage o ±0.75% Voltage Accuracy with External ±0.1% Reference 28V Input Voltage o Battery Thermistor Fail-Safe Protection ______________Ordering Information PART MAX1647EAP MAX1648ESE 20 BST DCIN DHI CCV 17 ...
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... Continuous Power Dissipation (T 16-Pin SO (derate 8.7mW/°C above +70°C).................696mW 20-Pin SSOP (derate 8mW/°C above +70°C) ...............640mW Operating Temperature Range MAX1647EAP, MAX1648ESE ...........................-40°C to +85°C Storage Temperature.........................................-60°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C = +25°C, unless otherwise noted.) ...
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Chemistry-Independent Battery Chargers ELECTRICAL CHARACTERISTICS (continued 18V 4.096V 0°C to +85°C. Typical values are at T DCIN REF A PARAMETER ERROR AMPLIFIERS GMV Amplifier Transconductance GMI Amplifier Transconductance GMV Amplifier Maximum Output Current GMI ...
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Chemistry-Independent Battery Chargers ELECTRICAL CHARACTERISTICS (V = 18V 4.096V -40°C to +85°C. Typical values are at T DCIN REF A temperature range are guaranteed by design.) PARAMETER SUPPLY AND REFERENCE DCIN Quiescent Current VL Output Voltage ...
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Chemistry-Independent Battery Chargers TIMING CHARACTERISTICS—MAX1647 (T = 0°C to +85°C, unless otherwise noted.) A PARAMETER SCL Serial-Clock High Period SCL Serial-Clock Low Period Start-Condition Setup Time Start-Condition Hold Time SDA Valid to SCL Rising-Edge Setup Time, Slave Clocking in Data ...
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Chemistry-Independent Battery Chargers __________________________________________Typical Operating Characteristics (Circuit of Figure +25°C, unless otherwise noted.) A MAX1647 BATT LOAD TRANSIENT CCI CCV 0.9A TO 1.9A TO 0.9A 1ms/div ChargingVoltage 0x2EE0 = 12000mV ChargingCurrent 0xFFFF = ...
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Chemistry-Independent Battery Chargers ______________________________________________________________Pin Description PIN NAME MAX1647 MAX1648 1 — IOUT 2 1 DCIN CCV 5 4 CCI 6 — SEL BATT 9 7 REF 10 8 AGND — ...
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Chemistry-Independent Battery Chargers MOST SIGNIFICANT ADDRESS BIT (A6) START CLOCKED INTO SLAVE CONDITION SCL t HD:STA SDA t t SU:STA SU:DAT Figure 1. SMBus Serial Interface Timing—Address CLOCKED INTO SLAVE SCL SDA Figure 2. SMBus Serial Interface Timing—Acknowledge 8 _______________________________________________________________________________________ ...
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Chemistry-Independent Battery Chargers 4 GND VIN MAX874 6 VOUT 10 AGND C4 9 REF MAX1647 THM 5 CCI C3 4 CCV DACV C8 = HIGH-CURRENT TRACES (8A MAX) NOTE 1: C6, M2, D1, AND ...
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Chemistry-Independent Battery Chargers Table 1a. Component Selection for Figure 3 Circuit (Also Use for Figure 4) DESIGNATION QTY UNITS C1 47 µF C2, C4, C7, C9 0.1 µ µ µ ...
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Chemistry-Independent Battery Chargers Table 1b. Component Suppliers MANUFACTURER PHONE AVX 803-946-0690 Central Semiconductor 516-435-1110 Coilcraft 847-639-6400 Coiltronics 561-241-7876 Dale 605-668-4131 IR 310-322-3331 IRC 512-992-7900 NIEC 805-867-2555 Siliconix 408-988-8000 Sprague 603-224-1961 Sumida 847-956-0666 Zetex 516-543-7100 R3 R4 THM CCI C3 CCV ...
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Chemistry-Independent Battery Chargers BATT VOLTAGE VOLTAGE SET POINT I0 = CURRENT-LIMIT SET POINT I0 Figure 5. Output V-I Characteristic Setting V0 and I0 (MAX1647) Set the MAX1647’s voltage and current-limit set points through the Intel System Management ...
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Chemistry-Independent Battery Chargers REF 10kΩ 10kΩ 10kΩ 10kΩ THM 100kΩ 30kΩ 3kΩ 500Ω AGND CS CURRENT-SENSE LEVEL SHIFT AND BATT GAIN OF 5.5 REF FROM LOGIC 6 6-BIT DAC BLOCK R R FROM LOGIC BLOCK BATT TO LOGIC BLOCK AGND ...
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Chemistry-Independent Battery Chargers REF THM AGND CS CURRENT-SENSE LEVEL SHIFT AND GAIN OF 5.5 BATT ON BATT AGND Figure 6b. MAX1648 Block Diagram 14 ______________________________________________________________________________________ 10kΩ 10kΩ 30kΩ 3kΩ AC_PRESENT CCI GMI SETI REF / 2 ...
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Chemistry-Independent Battery Chargers internal current sources’ state, and the six most signifi- cant bits control the switching regulator’s current. The internal current source supplies 1mA resolution to the battery to comply with the smart-battery specification. When the current is set ...
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Chemistry-Independent Battery Chargers The synchronous rectifier may not be completely replaced by a diode because the BST capacitor charges while the synchronous rectifier is turned on. Without the synchronous rectifier, the BST capacitor may not fully charge, leaving the high-side ...
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Chemistry-Independent Battery Chargers Each communication with the MAX1647 begins with a start condition that is defined as a falling edge on SDA with SCL high. The device address follows the start condition. The MAX1647 device address is 0b0001001 (0b indicates ...
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Chemistry-Independent Battery Chargers Figure 8 shows the mapping between V0 (the voltage- regulation-loop set point) and the ChargingVoltage( ) data. The power-on reset value for the ChargingVoltage( ) register is 0xFFF0; thus, the first time a MAX1647 is powered on, ...
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Chemistry-Independent Battery Chargers Two sources of current in the MAX1647 charge the bat- tery: a binary-weighted linear current source sources from IOUT, and a switching regulator controls the current flowing through the current-sense resistor (R1). IOUT provides a small maintenance ...
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Chemistry-Independent Battery Chargers Table 4. Relationship Between Current DAC Code and the ChargingCurrent( ) Value CHARGE_ ALARM_ (NOTE 1) ChargingVoltage( ) INHIBITED INHIBITED ...
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Chemistry-Independent Battery Chargers With SEL = AGND, R1 should be as close as possible to 0.185 / 1.023 = 181mΩ to ensure that the actual output current matches the data value programmed with the ChargingCurrent( ) command. With SEL = ...
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Chemistry-Independent Battery Chargers IF (TEMPWORD OR 0xBEFF) = 0xFFFF THEN GOTO HAVEBATT: GOTO ENDINT: HAVEBATT battery is installed. Turn the battery’s broadcast mode off to monitor the charging process. Using the BatteryMode( ) command, make sure the CHARGER_ ...
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Chemistry-Independent Battery Chargers Table 7. ChargerStatus( ) Bit Descriptions BIT NAME LATCHED? POSITION CHARGE_INHIBITED 0 MASTER_MODE 1 VOLTAGE_NOTREG 2 CURRENT_NOTREG 3 LEVEL_2 4 LEVEL_3 5 CURRENT_OR 6 VOLTAGE_OR 7 THERMISTOR_OR 8 THERMISTOR_COLD 9 THERMISTOR_HOT 10 THERMISTOR_UR 11 ALARM_INHIBITED 12 POWER_FAIL ...
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Chemistry-Independent Battery Chargers (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages NOTES: 1. D&E DO NOT INCLUDE MOLD FLASH. ...
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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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________25 © 2002 Maxim Integrated Products ...