Datasheet LTC3337 (Analog Devices) - 3
| Hersteller | Analog Devices |
| Beschreibung | Primary Battery SOH Monitor with Precision Coulomb Counter |
| Seiten / Seite | 24 / 3 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| Dateiformat / Größe | PDF / 1.4 Mb |
| Dokumentensprache | Englisch |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the full operating
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LTC3337
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating junction temperature range, otherwise specifications are at TA = 25°C. (Note 2). BAT_IN = BAT_OUT = AVCC = DVCC = 3.6V unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Voltage Range (BAT_IN) (Note 4) l 1.8 5.5 V AVCC Voltage Range l 1.8 5.5 V
Coulomb Counter
Input Current into BAT_IN BAT_IN – BAT_OUT = 50mV 0 nA BAT_IN – BAT_OUT = 175mV (Current Source 90 100 110 mA Turned On), 100mA IPEAK Setting l 85 100 115 mA BAT_IN – BAT_OUT = 175mV (Current Source 67.5 75 82.5 mA Turned On), 75mA IPEAK Setting l 65 75 85 mA BAT_IN – BAT_OUT = 175mV (Current Source 45 50 55 mA Turned On), 50mA IPEAK Setting l 43 50 57 mA BAT_IN – BAT_OUT = 175mV (Current Source 22.5 25 27.5 mA Turned On), 25mA IPEAK Setting l 21.5 25 28.5 mA BAT_IN – BAT_OUT = 175mV (Current Source 18 20 22 mA Turned On), 20mA IPEAK Setting l 17 20 23 mA BAT_IN – BAT_OUT = 175mV (Current Source 13.5 15 16.5 mA Turned On), 15mA IPEAK Setting l 13 15 17 mA BAT_IN – BAT_OUT = 175mV (Current Source 9 10 11 mA Turned On), 10mA IPEAK Setting l 8.5 10 11.5 mA BAT_IN – BAT_OUT = 175mV (Current Source 4.5 5 5.5 mA Turned On), 5mA IPEAK Setting l 4.2 5 5.8 mA Start-Up: BAT_OUT= 0V, 25 mA 25mA/50mA/75mA/100mA IPEAK Settings Start-Up: BAT_OUT= 0V, 5 mA 5mA/10mA/15mA/20mA IPEAK Settings AVCC Pin Input Quiescent Current BAT_IN – BAT_OUT = 50mV 100 160 nA qLSB (for Prescaler Setting M = 0) (Notes 5, 6) 100mA IPEAK Setting l 14.17 14.91 15.66 mA • hr 75mA IPEAK Setting 11.18 mA • hr 50mA IPEAK Setting 7.457 mA • hr 25mA IPEAK Setting 3.728 mA • hr 20mA IPEAK Setting 2.983 mA • hr 15mA IPEAK Setting 2.237 mA • hr 10mA IPEAK Setting 1.491 mA • hr 5mA IPEAK Setting 745.7 µA • hr Full-Scale Coulomb Count (Battery Capacity) 5mA IPEAK Setting, M = 15 (Smallest Battery) 1.491 mA • hr 100mA IPEAK Setting, M = 0 (Largest Battery) l 928.5 977.3 1026 A • hr Total Coulomb Counter Error (Note 6) (Note 7) –3 3 % l –5 5 % Coulomb Counter Turn-On Threshold (BAT_IN – BAT_OUT), BAT_OUT Rising 0.6 V Coulomb Counter Turn-Off Threshold (BAT_IN – BAT_OUT), BAT_OUT Falling 1.2 V BATOUT_OK Threshold (BAT_IN – BAT_OUT), BAT_OUT Rising l 88 110 132 mV BATOUT_OK Threshold (BAT_IN – BAT_OUT), BAT_OUT Falling l 375 400 425 mV Rev. 0 For more information www.analog.com 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Timing Diagram Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Applications Related Parts
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating junction temperature range, otherwise specifications are at TA = 25°C. (Note 2). BAT_IN = BAT_OUT = AVCC = DVCC = 3.6V unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Voltage Range (BAT_IN) (Note 4) l 1.8 5.5 V AVCC Voltage Range l 1.8 5.5 V
Coulomb Counter
Input Current into BAT_IN BAT_IN – BAT_OUT = 50mV 0 nA BAT_IN – BAT_OUT = 175mV (Current Source 90 100 110 mA Turned On), 100mA IPEAK Setting l 85 100 115 mA BAT_IN – BAT_OUT = 175mV (Current Source 67.5 75 82.5 mA Turned On), 75mA IPEAK Setting l 65 75 85 mA BAT_IN – BAT_OUT = 175mV (Current Source 45 50 55 mA Turned On), 50mA IPEAK Setting l 43 50 57 mA BAT_IN – BAT_OUT = 175mV (Current Source 22.5 25 27.5 mA Turned On), 25mA IPEAK Setting l 21.5 25 28.5 mA BAT_IN – BAT_OUT = 175mV (Current Source 18 20 22 mA Turned On), 20mA IPEAK Setting l 17 20 23 mA BAT_IN – BAT_OUT = 175mV (Current Source 13.5 15 16.5 mA Turned On), 15mA IPEAK Setting l 13 15 17 mA BAT_IN – BAT_OUT = 175mV (Current Source 9 10 11 mA Turned On), 10mA IPEAK Setting l 8.5 10 11.5 mA BAT_IN – BAT_OUT = 175mV (Current Source 4.5 5 5.5 mA Turned On), 5mA IPEAK Setting l 4.2 5 5.8 mA Start-Up: BAT_OUT= 0V, 25 mA 25mA/50mA/75mA/100mA IPEAK Settings Start-Up: BAT_OUT= 0V, 5 mA 5mA/10mA/15mA/20mA IPEAK Settings AVCC Pin Input Quiescent Current BAT_IN – BAT_OUT = 50mV 100 160 nA qLSB (for Prescaler Setting M = 0) (Notes 5, 6) 100mA IPEAK Setting l 14.17 14.91 15.66 mA • hr 75mA IPEAK Setting 11.18 mA • hr 50mA IPEAK Setting 7.457 mA • hr 25mA IPEAK Setting 3.728 mA • hr 20mA IPEAK Setting 2.983 mA • hr 15mA IPEAK Setting 2.237 mA • hr 10mA IPEAK Setting 1.491 mA • hr 5mA IPEAK Setting 745.7 µA • hr Full-Scale Coulomb Count (Battery Capacity) 5mA IPEAK Setting, M = 15 (Smallest Battery) 1.491 mA • hr 100mA IPEAK Setting, M = 0 (Largest Battery) l 928.5 977.3 1026 A • hr Total Coulomb Counter Error (Note 6) (Note 7) –3 3 % l –5 5 % Coulomb Counter Turn-On Threshold (BAT_IN – BAT_OUT), BAT_OUT Rising 0.6 V Coulomb Counter Turn-Off Threshold (BAT_IN – BAT_OUT), BAT_OUT Falling 1.2 V BATOUT_OK Threshold (BAT_IN – BAT_OUT), BAT_OUT Rising l 88 110 132 mV BATOUT_OK Threshold (BAT_IN – BAT_OUT), BAT_OUT Falling l 375 400 425 mV Rev. 0 For more information www.analog.com 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Timing Diagram Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Applications Related Parts