Datasheet LTC1998 (Analog Devices) - 3
| Hersteller | Analog Devices |
| Beschreibung | 2.5µA, 1% Accurate SOT-23 Comparator and Voltage Reference for Battery Monitoring |
| Seiten / Seite | 12 / 3 — ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which apply … |
| Dateiformat / Größe | PDF / 139 Kb |
| Dokumentensprache | Englisch |
ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which apply over the full operating
Modelllinie für dieses Datenblatt
Textversion des Dokuments
LTC1998
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VGND = 0V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS Power Supply
Supply Voltage Range-BATT l 1.5 5.5 V Supply Voltage Range-VLOGIC l 1 VBATT V Supply Current, VBATT = 3V, TA = 25°C 2.5 3.5 μA VTH.A = 1.5V LTC1998CS6 l 4.2 μA LTC1998IS6 l 4.5 μA Supply Current, VBATT = 5.5V, TA = 25°C 3 4.3 μA VTH.A = 1.5V LTC1998CS6 l 5.2 μA LTC1998IS6 l 5.5 μA
Monitor
Threshold Accuracy VBATT.Th = 2.5V, Pin 3 Shorted to Ground 0.6 0.85 % l 0.8 1 % VBATT.Th = 3V, Pin 3 Driven by Precision Voltage Source to 1V LTC1998C l 0.5 0.61 % LTC1998I l 0.6 0.71 % VBATT.Th = 3V, VTH.A = 1V (Note 5) Programmed with 1% Max External Resistors LTC1998C l 0.8 1 % LTC1998I l 0.9 1.1 % VBATT.Th = 3.25V, Pin 3 Driven by Precision Voltage Source to 1.5V LTC1998C l 0.6 0.65 % LTC1998I l 0.7 0.85 % VBATT.Th = 3.25V, VTH.A = 1.5V (Note 5) Programmed with 1% Max External Resistors LTC1998C l 0.9 1.1 % LTC1998I l 1 1.3 % Hysteresis Accuracy VHYST ≤ 250mV l –5 5 mV 250mV ≤ VHYST ≤ 750mV l ±5 mV Allowable Hysteresis Range (Note 2) l 10 750 mV Propagation Delay COUT = 100pF Overdrive = 10mV 350 μs Overdrive = 100mV 150 μs Threshold Adjust Pin Leakage, ITH.A VTH.A ≤ 1.5V l 0.01 1 nA Hysteresis Adjust Pin Leakage, IH.A VH.A ≤ 1.5V l 0.01 1 nA
Output
BATTLO High Voltage IOUT = –1mA, VLOGIC ≥ 1.5V l VLOGIC – 0.3 V BATTLO Low Voltage IOUT = 1mA, VBATT ≥ 2V l 0.2 V BATTLO Low Voltage IOUT = 0.25mA, VBATT = 1V l 0.3 V
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 4:
The LTC1998C is guaranteed to meet specifi ed performance from may cause permanent damage to the device. Exposure to any Absolute 0°C to 70°C. The LTC1998C is designed, characterized and expected to Maximum Rating condition for extended periods may affect device meet specifi ed performance from –40°C to 85°C but is not tested or QA reliability and lifetime. sampled at these temperatures. The LTC1998I is guaranteed to meet
Note 2:
Maximum allowable hysteresis depends on desired trip voltages. specifi ed performance from –40°C to 85°C. See application notes for details.
Note 5:
This parameter is not 100% tested.
Note 3:
LTC1998C and LTC1998I are guaranteed functional over the operating temperature range of –40°C to 85°C. 1998fb 3
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VGND = 0V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS Power Supply
Supply Voltage Range-BATT l 1.5 5.5 V Supply Voltage Range-VLOGIC l 1 VBATT V Supply Current, VBATT = 3V, TA = 25°C 2.5 3.5 μA VTH.A = 1.5V LTC1998CS6 l 4.2 μA LTC1998IS6 l 4.5 μA Supply Current, VBATT = 5.5V, TA = 25°C 3 4.3 μA VTH.A = 1.5V LTC1998CS6 l 5.2 μA LTC1998IS6 l 5.5 μA
Monitor
Threshold Accuracy VBATT.Th = 2.5V, Pin 3 Shorted to Ground 0.6 0.85 % l 0.8 1 % VBATT.Th = 3V, Pin 3 Driven by Precision Voltage Source to 1V LTC1998C l 0.5 0.61 % LTC1998I l 0.6 0.71 % VBATT.Th = 3V, VTH.A = 1V (Note 5) Programmed with 1% Max External Resistors LTC1998C l 0.8 1 % LTC1998I l 0.9 1.1 % VBATT.Th = 3.25V, Pin 3 Driven by Precision Voltage Source to 1.5V LTC1998C l 0.6 0.65 % LTC1998I l 0.7 0.85 % VBATT.Th = 3.25V, VTH.A = 1.5V (Note 5) Programmed with 1% Max External Resistors LTC1998C l 0.9 1.1 % LTC1998I l 1 1.3 % Hysteresis Accuracy VHYST ≤ 250mV l –5 5 mV 250mV ≤ VHYST ≤ 750mV l ±5 mV Allowable Hysteresis Range (Note 2) l 10 750 mV Propagation Delay COUT = 100pF Overdrive = 10mV 350 μs Overdrive = 100mV 150 μs Threshold Adjust Pin Leakage, ITH.A VTH.A ≤ 1.5V l 0.01 1 nA Hysteresis Adjust Pin Leakage, IH.A VH.A ≤ 1.5V l 0.01 1 nA
Output
BATTLO High Voltage IOUT = –1mA, VLOGIC ≥ 1.5V l VLOGIC – 0.3 V BATTLO Low Voltage IOUT = 1mA, VBATT ≥ 2V l 0.2 V BATTLO Low Voltage IOUT = 0.25mA, VBATT = 1V l 0.3 V
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 4:
The LTC1998C is guaranteed to meet specifi ed performance from may cause permanent damage to the device. Exposure to any Absolute 0°C to 70°C. The LTC1998C is designed, characterized and expected to Maximum Rating condition for extended periods may affect device meet specifi ed performance from –40°C to 85°C but is not tested or QA reliability and lifetime. sampled at these temperatures. The LTC1998I is guaranteed to meet
Note 2:
Maximum allowable hysteresis depends on desired trip voltages. specifi ed performance from –40°C to 85°C. See application notes for details.
Note 5:
This parameter is not 100% tested.
Note 3:
LTC1998C and LTC1998I are guaranteed functional over the operating temperature range of –40°C to 85°C. 1998fb 3