Battery Management

New high-frequency switch-mode Li-Ion battery charger simplifies constant current control in quick-charge portables. The ADP2291 is a constant-current/constant-voltage linear charger for a single cell lithium ion battery, requiring just a few components to provide a simple and safe charging system that operates from a wide 4.5V to 12V input voltage range. The industry’s highest end-of-voltage accuracy levels are achieved to within ±0.4% at 25ºC, ±0.6% at 5ºC to 55ºC and ±0.7% at 0ºC to 85ºC.

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PRODUCT SELECTION TABLES

Launch of ADIsimPower Voltage Regulator Selection Vin (min) V Vout V   Find Solutions
Vin (max) V Iout A
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Battery Chargers

Part#Switching or Linear# Cells ChargedCell TypeFinal Voltage OptionsAccuracy Over Temperature (max)US Price 1000 to 4999Isupply (max)Operating Temp RangeVsupply Positive (min)Vsupply Positive (max)Operating Temp Range
ADP5090 Switching 1 Li-Ion Adjustable - $1.99 580 nA
ADP5063 Linear 1 Li-Ion 3.6 1.55 $1.50 2 mA
ADP5062 Linear 1 Li-Ion 4.2 V (default) 1.2 $1.50 2 mA
ADP5061 Linear 1 Li-Ion 3.5V-4.4V 20mV per Step 1.55 $1.50 -
ADP5065 Switching 1 Li-Ion 3.5V-4.4V 20mV per Step 1 $1.60 -
AD7280AReference Circuit Available - - - - - $4.33 -
ADP2291 Linear 1 Li-Ion 4.2 1 $1.12 -
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Battery Backup

Part#Reset Threshold (V)Min Reset Timeout (ms)Reset Output-StageBackup-Battery SwitchChip Enable Gating# of Monitored VoltagesUS Price 1000 to 4999
ADM8697 1.3 35 (Adjustable) Active-High/Push-Pull Yes Yes - $2.72
ADM8696 1.3 35 (Adjustable) Active-High/Push-Pull Yes --- - $2.72
ADM8695 4.65 140 (Adjustable) Active-High/Push-Pull Yes Yes - $2.19
ADM8694 4.65 140 Active-Low/Push-Pull Yes --- - -
ADM8693 4.4 35 (Adjustable) Active-High/Push-Pull Yes Yes - -
ADM8691 4.65 35 (Adjustable) Active-High/Push-Pull Yes Yes - $3.02
ADM8690 4.65 35 Active-Low/Push-Pull Yes --- - $2.52
ADM805 4.4 140 Active-High/Push-Pull Yes --- - $2.23
ADM802 4.4 140 Active-Low/Push-Pull Yes --- - $2.23
ADM800 4.4 140 (Adjustable) Active-High/Open-Drain Yes Yes - $2.33
ADM693A 4.4 140 (Adjustable) Active-High/Open-Drain Yes Yes - $1.85
ADM692A 4.4 140 Active-Low/Push-Pull Yes --- - $1.68
ADM691A 4.65 140 (Adjustable) Active-High/Open-Drain Yes Yes - $1.73
ADM690A 4.65 140 Active-Low/Push-Pull Yes --- - $1.57
ADM708 2.63 160 Active-High/Push-Pull Yes --- 1 $0.85
ADM707 4.65 160 Active-High/Push-Pull Yes --- 1 $0.97
ADM706 4.4 160 Active-Low/Push-Pull Yes --- 1 $1.70
ADM705 4.65 160 Active-Low/Push-Pull Yes --- 1 $1.02
ADM697 1.3 35 Active-High/Push-Pull Yes Yes - $2.63
ADM696 1.3 35 Active-High/Push-Pull Yes --- - $2.63
ADM695 4.65 140 (Adjustable) Active-High/Push-Pull Yes Yes - $2.73
ADM694 4.65 140 Active-Low/Push-Pull Yes --- - $2.53
ADM693 4.4 35 (Adjustable) Active-High/Push-Pull Yes Yes - $2.73
ADM692 4.4 35 Active-Low/Push-Pull Yes --- - $2.42
ADM691 4.65 35 (Adjustable) Active-High/Push-Pull Yes Yes - $2.73
ADM690 4.65 35 Active-Low/Push-Pull Yes --- - $2.42
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Battery Source Selectors

Part#Reset Threshold (V)Min Reset Timeout (ms)Reset Output-StageBackup-Battery SwitchChip Enable GatingTyp Watchdog Timeout (ms)US Price 1000 to 4999
ADM697 1.3 35 Active-High/Push-Pull Yes Yes 100 $2.63
ADM696 1.3 35 Active-High/Push-Pull Yes --- 100 $2.63
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