Datasheet LTC1998 (Analog Devices) - 3

HerstellerAnalog Devices
Beschreibung2.5µA, 1% Accurate SOT-23 Comparator and Voltage Reference for Battery Monitoring
Seiten / Seite12 / 3 — ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which apply …
Dateiformat / GrößePDF / 139 Kb
DokumentenspracheEnglisch

ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which apply over the full operating

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