Datasheet LT8490 (Analog Devices) - 6

LT8490
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Solar Powered Charging Lead Solar Powered Charging Lead Solar Powered Charging Lithium Acid Battery "A” Acid Battery "B” Ion Battery
17.5 17.5 30 10 PARTLY CLOUDY CLOUDY DAY PARTLY CLOUDY 15.0 15.0 STAGE 1 STAGE 2 VBAT 8 12.5 VBAT 12.5 SOME TRANSIENTS 28 (A) CHARGING ST FROM FULL PANEL CHARGING ST 10.0 (A) 10.0 VBAT BAT IBAT SCANS REMOVED 6 SUNSET BAT FOR CLARITY. IB SOME TRANSIENTS 7.50 7.50 (V) AT 26 FROM FULL PANEL (A) SUNSET IBAT (V) AND I SCANS REMOVED 5.00 AGE V BAT (V) AND I 5.00 AGE 4 SOME TRANSIENTS FOR CLARITY. V BAT IBAT 2.50 FROM FULL PANEL V BAT 2.50 24 UART AND SCANS REMOVED STATUS 2 0 FOR CLARITY. 3 0 3 INDICATE < C/10 STAGE STAGE 0 0 20 0 9AM 6PM 10AM 6PM 1PM 5PM TIME OF DAY TIME OF DAY TIME OF DAY 8490 G01 8490 G02 8490 G03 BACK PAGE APPLICATION BACK PAGE APPLICATION FIGURE 34 APPLICATION
Power Supply Mode Charging STATUS VOH and VOL FAULT VOH and VOL Lead Acid Battery "B” (VDD = AVDD = 3.3V) (VDD = AVDD = 3.3V)
15.0 VBAT 3 3 –40°C V 12.5 OH VOH STAGE 1 STAGE 2 STAGE 3 (A) 10.0 125°C 25°C BAT 2 2 IBAT (V) (V) T –40°C 7.50 25°C ATUS 125°C V FAUL (V) AND I V ST 5.00 1 125°C 25°C 1 V BAT 25°C 2.50 V 125°C OL VOL –40°C –40°C VIN = 36V 0 0 0 0 12 0 5 10 15 20 0 1 2 3 CHARGING TIME (HOURS) |I |I STATUS| (mA) FAULT| (mA) 8490 G04 8490 G05 8490 G06 BACK PAGE APPLICATION
LDO33 Load Regulation (Not FBOUT, FBIN, IMONIN, IMONOUT Connected to AVDD and VDD) IMON Output Currents Voltage Rise vs Power
3.4 200 1.0 175 0.8 3.3 150 INTVCC REGULATED 125 IMON_IN FROM VIN 25°C 0.6 100 3.2 125°C 75 LDO33 (V) IMON_OUT 0.4 –40°C TAGE RISE (%) PIN CURRENT (µA) 50 VOL 3.1 25 0.2 INTVCC REGULATED FROM EXTV 0 CC 3 –25 0 0 4 8 12 16 20 –100 –50 0 50 100 150 200 0 0.5 1 1.5 2 LOAD CURRENT (mA) CSxIN-CSxOUT (mV) INTVCC REGULATOR POWER (W) 8490 G07 8490 G08 8490 G09 8490fa 6 For more information www.linear.com/LT8490 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts