MAX1667EAP+ Maxim Integrated Products, MAX1667EAP+ Datasheet
MAX1667EAP+
Specifications of MAX1667EAP+
Related parts for MAX1667EAP+
MAX1667EAP+ Summary of contents
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... BATT SCL SDA CCI THM SMBus is a trademark of Intel Corp. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Chemistry-Independent, Level 2 Smart Battery Charger ____________________________Features o Charges Any Battery Chemistry: Li+, NiCd, NiMH, Lead Acid, etc ...
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Chemistry-Independent, Level 2 Smart Battery Charger ABSOLUTE MAXIMUM RATINGS DCIN to AGND .......................................................-0.3V to +30V BST to AGND..........................................................-0.3V to +36V BST, DHI to LX..........................................................-0.3V to +6V LX, IOUT to AGND..................................................-0.3V to +30V THM, CCI, CCV, DACV, REF, DLO to AGND ...
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ELECTRICAL CHARACTERISTICS (continued 18V, internal reference, 1µF capacitor at REF, 1µF capacitor at VL, T DCIN are +25°C, unless otherwise noted.) A PARAMETER ERROR AMPLIFIERS GMV Amplifier Transconductance GMI Amplifier Transconductance GMV Amplifier Maximum Output ...
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Chemistry-Independent, Level 2 Smart Battery Charger ELECTRICAL CHARACTERISTICS (V = 18V, internal reference, 1µF capacitor at REF, 1µF capacitor at VL, T DCIN are +25°C. Limits over this temperature range are guaranteed by design.) A PARAMETER SUPPLY ...
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TIMING CHARACTERISTICS (Figures 1 and 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 ...
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Chemistry-Independent, Level 2 Smart Battery Charger 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 6 ...
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Operating Characteristics (Circuit of Figure +25°C, unless otherwise noted.) A LOAD TRANSIENT (VOLTAGE REGULATION WITH CURRENT LIMIT) CCI CCV CCV CCI CCI CCV V BATT 10V I 5V/div LOAD AVERAGED MEASUREMENT 500µs/div V = 18V DCIN ...
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Chemistry-Independent, Level 2 Smart Battery Charger (Circuit of Figure +25°C, unless otherwise noted vs. TEMPERATURE REF 4.110 4.105 4.100 4.095 4.090 4.085 V = 20V DCIN 4.080 -40 - TEMPERATURE ...
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Level 2 Smart Battery Charger PIN NAME 1 IOUT Linear Current-Source Output 2 DCIN Input Voltage for Powering Charger Power Supply. 5.4V linear-regulator output from DCIN. 4 CCV Voltage-Regulation-Loop Compensation Point 5 CCI Current-Regulation-Loop Compensation Point Current-Range ...
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Chemistry-Independent, Level 2 Smart Battery Charger V CC SYSTEM +12V, -12V POWER SUPPLY SYSTEM HOST (SMBus HOST) CRITICAL EVENTS BATTERY DATA/STATUS REQUESTS Figure 3. Typical Single Smart Battery System Smart Battery Charging System A smart battery charging system ...
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V CC SYSTEM +12V, -12V POWER SUPPLY SYSTEM HOST (SMBus HOST) CRITICAL EVENTS BATTERY DATA/STATUS REQUESTS Figure 4. Typical Multiple Smart Battery System Table 1. Charger Type by SMBus Mode and Charge Algorithm Source CHARGE ALGORITHM SOURCE SMBus MODE Battery ...
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Chemistry-Independent, Level 2 Smart Battery Charger BATT VOLTAGE VOLTAGE SET POINT I0 = CURRENT-LIMIT SET POINT I0 Figure 5. Output V-I Characteristic _______________Detailed Description Output Characteristics The MAX1667 contains both a voltage-regulation loop and a current-regulation loop. ...
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REF 10k 10k 10k 10k THM 30k 3k 100k 500Ω AGND CS CURRENT-SENSE LEVEL SHIFT AND BATT GAIN OF 5.5 REF FROM LOGIC 5 5-BIT DAC BLOCK 3R R FROM LOGIC BLOCK BATT TO LOGIC BLOCK AGND TO LOGIC BLOCK ...
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Chemistry-Independent, Level 2 Smart Battery Charger across the current-sense resistor (R between the CS and BATT pins), amplifies it by approx- imately 5.45, and level shifts it to ground. The full-scale current is approximately 0.16V/R SEN is 5mV/R . SEN ...
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AGND C4 9 REF R3 C10 R4 12 MAX1667 THM 5 CCI C3 4 CCV DACV C8 = HIGH-CURRENT TRACES (8A MAX) NOTE 1: C6, M2, D1, AND C1 GROUNDS MUST CONNECT TO THE SAME RECTANGULAR ...
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Chemistry-Independent, Level 2 Smart Battery Charger Table 2a. Component Selection DESIGNATION MANUFACTURER C1 AVX Output Capacitor Sprague C2, C7, C11 C3 C4, C5, C9, C10 C6 AVX Input Capacitor Sprague C8 Motorola D1, D4, D5 Schottky Diodes Central NIEC D2, ...
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Table 2b. 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 When the master has finished communicating with the slave, ...
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Chemistry-Independent, Level 2 Smart Battery Charger Table 3. ChargerMode() Bit Functions BIT BIT NAME POSITION* 0 INHIBIT_CHARGE (LSB) ENABLE_POLLING 1 POR_RESET 2 RESET_TO_ZERO 3 N/A 4 BATTERY_PRESENT_MASK 5 POWER_FAIL_MASK 6 N/A 7–9 HOT_STOP 10 11–15 N/A (MSB) *Bit position in ...
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Write-Word Format SLAVE COMMAND W S ACK ADDRESS 7 bits 1b 1b MSB LSB 0 ChargerMode() = 0x12 Preset to ChargingCurrent() = 0x14 0b0001001 ChargerVoltage() = 0x15 AlarmWarning() = 0x16 b) Read-Word Format SLAVE COMMAND W S ACK ADDRESS ...
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Chemistry-Independent, Level 2 Smart Battery Charger 18.416V 16.368V V = 4.096V REF DCIN > 20V 12.592V 8.400V 4.192V 0V 0b000100000110xxxx 0b000000000000xxxx 0x000x Figure 9. ChargingVoltage() Data to Voltage Mapping 160 115 0x0080 0x0380 0x0B80 0x0F80 B: (128) ...
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Table 4. ChargingCurrent() Bit Functions BIT POSITION D15 D14 D13 D12 D11 FUNCTION FS* WEIGHT IN mA 3968 40mΩ) SENSE * When SEL = VL, values above 0x0F80 set the output current to 3.968A. When SEL = OPEN, ...
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Chemistry-Independent, Level 2 Smart Battery Charger Table 6. Relationship Between Current DAC Code and the ChargingCurrent() Value 0x0000–0x000F 0x000F–0xFFFF 0x000F–0xFFFF 0x000F–0xFFFF 0x000F–0xFFFF ...
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Table 8. 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 13 BATTERY_PRESENT 14 AC_PRESENT ...
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Chemistry-Independent, Level 2 Smart Battery Charger HIGH-CURRENT PATH MAX1667 Figure 12. Kelvin Connections for the Current-Sense Resistors PC Board Layout Considerations Good PC board layout is required to achieve specified noise, efficiency, and stable performance. The PC board layout artist ...
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The SEL pin digitally limits the output current to 4A, 3A without a change in sense resistor value between the three modes. 8) The single count current-sense voltage has been changed to 5mV. R1 required is now ...
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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. 26 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 2003 Maxim Integrated Products ...