lx2208 Microsemi Corporation, lx2208 Datasheet
lx2208
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lx2208 Summary of contents
Page 1
... Current Programming T (° Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX2208ILD-TR) Copyright © 2007 Rev. 1.0, 2007-04-03 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 2 Amp Three Level Lithium Ion Battery Charger ® ...
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... low and 20% is high. BAT LCP Input, Shutdown – A logic high places the LX2208 in shut down mode; it can also be used for USB suspend SD 5 mode. Output, Charging status logic pin and LED driver – This pin can source or sink 5mA of current to drive an external ...
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... Falling Voltage TFB V Rising Voltage TFB V TFB Microsemi Analog Mixed Signal Group LX2208 RODUCTION ATA HEET ≤ ≤ T 85°C and the A = 3.6V; R =15.8k, R =15.8k 0V. HCP LCP TMP LX2208 Units Min Typ Max 4. 2.9 3.1 3.3 225 4.18 4.2 4.22 4.16 4.2 4.24 4.10 4.2 4.24 1800 2000 2200 900 ...
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... ENABLE UVLO CHARGE CONTROL CONSTANT VOLTAGE CONTROL TEMPERATURE CONTROL CONDITIONING THRESHOLD LOW CHARGING CURRENT HIGH CHARGING CURRENT Microsemi Analog Mixed Signal Group LX2208 RODUCTION ATA HEET DCOK 4 STAT 3 BAT 12 CHARGE TERMINATION CONTROL COND. CURRENT Page 4 ...
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... CONDITION CHARGE MODE I DETERMINED BY THE MAX STATE OF H/ HCP LCP and 20%. REDUCE NO CHARGE CURRENT REDUCE NO CHARGE CURRENT Microsemi Analog Mixed Signal Group LX2208 RODUCTION ATA HEET CONSTANT VOLTAGE CHARGE MODE REDUCE NO 130 CHARGE TEMP < CURRENT YES REDUCE CHARGE < ...
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... 0.47u 1k CMP 10k H/L LX2208 SD 20% HCP LCP GND 3.57k 15.8k Current Programming Microsemi Analog Mixed Signal Group LX2208 RODUCTION ATA HEET Status 2..4k Charging STAT 2.4k Full 2.4k Power 121k TMP 24.9k BAT ...
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... This may be useful if supply is severely current limited. USB C HARGE The LX2208 is fully compliant with, and supports, the USB specifications – the Low Power Peripheral (100mA) connected LCP and High Power Peripherals (500mA). USB current levels ...
Page 8
... AYOUT In the layout of the Printed Circuit Board (PCB important to provide a low thermal impedance path from the thermal pad on the bottom of the LX2208 package to the ground plane of the circuit board to maximized heat dissipation. Generally this is accomplished by the use of multiple thermal vias. This insures the LX2208 stays cool and can provide the maximum charge current to minimize the time required to charge the battery ...
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... T M ATTERY EMPERATURE ONITOR The LX2208 has an input to monitor the battery temperature during battery charging; this method assumes the battery pack contains a thermistor expressly for this purpose. A typical Lithium Ion battery should only be charged within a temperature range of 0°C to 60°C. For this calculation, a Vishay NTHS0402N01N1003J Thermistor was used. thermistor has the value of 327kΩ ...
Page 10
... STAT Low High 100 0.50 0.45 80 0.40 0.35 Vbat 60 0.30 Ibat 0.25 40 0.20 0.15 20 0.10 0.05 0.00 0 120.0 0 Microsemi Analog Mixed Signal Group LX2208 RODUCTION ATA HEET Conditioning Current vs IHCP 50 100 150 200 250 300 IHCP (in uA) 350 Page 10 ...
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... MAX MIN A 0.80 1.00 0.031 0.039 A1 0.00 0.05 0.000 0.002 A3 0.20 REF 0.008 REF D 3.00 BSC 0.118 BSC E 3.00 BSC 0.118 BSC D2 1.87 2.12 0.074 0.083 E2 1.06 1.31 0.042 0.052 e 0.45 BSC 0.018 BSC K 0.20 MIN 0.008 MIN L 0.30 0.50 0.012 0.020 b 0.15 0.25 0.006 0.010 Microsemi Analog Mixed Signal Group LX2208 D S RODUCTION ATA HEET D2 MAX Page 11 ...