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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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LT1769IGN Datenblatt(PDF) 2 Page - Linear Technology |
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LT1769IGN Datenblatt(HTML) 2 Page - Linear Technology |
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2 / 16 page  2 LT1769 ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION ORDER PART NUMBER Consult factory for Military grade parts. *ALL VCC PINS SHOULD BE CONNECTED TOGETHER CLOSE TO THE PINS ** ALL GND PINS ARE FUSED TO INTERNAL DIE ATTACH PADDLE FOR HEAT SINKING. CONNECT THESE PINS TO EXPANDED PC LANDS FOR PROPER HEAT SINKING. 35 °C/W THERMAL RESISTANCE ASSUMES AN INTERNAL GROUND PLANE DOUBLING AS A HEAT SPREADER LT1769CGN LT1769IGN TJMAX = 125°C, θJA = 35°C/ W** 1 2 3 4 5 6 7 8 9 10 11 12 13 14 TOP VIEW GN PACKAGE 28-LEAD PLASTIC SSOP 28 27 26 25 24 23 22 21 20 19 18 17 16 15 GND** GND** GND** SW BOOST UV GND** GND** OVP CLP CLN COMP1 SENSE GND** GND** GND** GND** VCC1* VCC2* VCC3* GND** PROG VC UVOUT COMP2 BAT SPIN GND** ELECTRICAL CHARACTERISTICS (Note 1) Supply Voltage (VCC, CLP and CLN Pin Voltage) ......................... 30V BOOST Pin Voltage with Respect to VCC ................. 25V IBAT (Average)........................................................... 2A Operating Junction Temperature Range Commercial ........................................... 0 °C to 125°C Industrial ......................................... – 40 °C to 125°C Operating Ambient Temperature Commercial ............................................ 0 °C to 70°C Industrial ........................................... – 40 °C to 85°C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec).................. 300 °C The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 16V, VBAT = 8V, RS2 = RS3 = 200Ω (see Block Diagram), VCLN = VCC. No load on any outputs unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS Overall Supply Current VPROG = 2.7V, VCC ≤ 20V q 4.5 6.8 mA VPROG = 2.7V, 20V < VCC ≤ 25V q 4.6 7.0 mA Sense Amplifier CA1 Gain and Input Offset Voltage 8V ≤ VCC ≤ 25V , 0V ≤ VBAT ≤ 20V (With RS2 = 200Ω, RS3 = 200Ω)RPROG = 4.93k q 93 100 107 mV (Measured across RS1)(Note 2) RPROG = 49.3k q 810 12 mV TA < 0°C7 12 mV VCC = 28V, VBAT = 20V RPROG = 4.93k q 90 110 mV RPROG = 49.3k q 614 mV TA < 0°C7 13 mV VCC Undervoltage Lockout (Switch OFF) Threshold Measured at UV Pin q 678 V UV Pin Input Current 0.2V ≤ VUV ≤ 8V q 0.1 5 µA UV Output Voltage at UVOUT Pin In Undervoltage State, IUVOUT = 70µA q 0.1 0.5 V UV Output Leakage Current at UVOUT Pin 8V ≤ VUV, VUVOUT = 5V q 0.1 3 µA Reverse Current from Battery (When VCC Is VBAT ≤ 20V, VUV ≤ 0.4V 3 15 µA Not Connected, VSW Is Floating) |
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