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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC1144CS8 датащи(PDF) 2 Page - Linear Technology |
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LTC1144CS8 датащи(HTML) 2 Page - Linear Technology |
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2 / 8 page  2 LTC1144 PACKAGE/ORDER I FOR ATIO A G A U A R BSOLUTEXI TI S (Note 1) Supply Voltage (V +) (Transient) .............................. 20V Supply Voltage (V+) (Operating) ............................. 18V Input Voltage on Pins 1, 6, 7 (Note 2) ............................ – 0.3V < VIN < (V +) + 0.3V Output Short-Circuit Duration V + ≤ 10V .................................................... Indefinite V + ≤ 15V ........................................................ 30 sec V + ≤ 20V ............................................. Not Protected Power Dissipation ............................................. 500mW Operating Temperature Range LTC1144C ................................................ 0 °C to 70°C LTC1144I ............................................ – 40 °C to 85°C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec) .................. 300 °C TOP VIEW 1 2 3 4 8 7 6 5 BOOST CAP+ GND CAP– V+ OSC SHDN VOUT S8 PACKAGE 8-LEAD PLASTIC SOIC T JMAX = 110°C, θJA = 130°C/W 1 2 3 4 8 7 6 5 TOP VIEW BOOST CAP+ GND CAP– V+ OSC SHDN VOUT N8 PACKAGE 8-LEAD PLASTIC DIP T JMAX = 110°C, θJA = 100°C/W S8 PART MARKING 1144 1144I LTC1144CS8 LTC1144IS8 LTC1144CN8 LTC1144IN8 ORDER PART NUMBER Consult factory for Military grade parts. The q denotes specifications which apply over the full operating temperature range; all other limits and typicals at TA = 25°C. Note 1: Absolute maximum ratings are those values beyond which the life of a device may be impaired. Note 2: Connecting any input terminal to voltages greater than V + or less than ground may cause destructive latch-up. It is recommended that no inputs from sources operating from external supplies be applied prior to power-up of the LTC1144. Note 3: fOSC is tested with COSC = 100pF to minimize the effects of test fixture capacitance loading. The 0pF frequency is correlated to this 100pF test point, and is intended to simulate the capacitance at pin 7 when the device is plugged into a test socket and no external capacitor is used. LTC1144C LTC1144I SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS Supply Voltage Range RL = 10k q 2 18 2 18 V IS Supply Current RL = ∞, Pins 1, 6 No Connection, 1.1 1.1 mA fOSC = 10kHz q 1.3 1.6 mA SHDN = 0V, RL = ∞, Pins 1, 7 q 0.008 0.03 0.008 0.035 mA No Connection V + = 5V, RL = ∞, Pins 1, 6 0.10 0.10 mA No Connection, fOSC = 4kHz q 0.13 0.15 mA V + = 5V, SHDN = 0V, RL = ∞, q 0.002 0.015 0.002 0.018 mA Pins 1, 7 No Connection ROUT Output Resistance V + = 15V, IL = 20mA at 10kHz 56 100 56 100 Ω q 120 140 Ω V + = 5V, IL = 3mA at 4kHz q 90 250 90 300 Ω fOSC Oscillator Frequency V + = 15V (Note 3) 10 10 kHz V + = 5V 4 4 kHz Power Efficiency RL = 2k at 10kHz q 90 93 90 93 % Voltage Conversion Efficiency RL = ∞ q 97.0 99.9 97.0 99.9 % Oscillator Sink or Source Current V + = 5V (VOSC = 0V to 5V) 0.5 0.5 µA V + = 15V (VOSC = 0V to 15V) 4 4 µA ELECTRICAL C C HARA TERISTICS V + = 15V, COSC = 0pF, TA = 25°C, Test Circuit Figure 1, unless otherwise noted. |
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