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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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LT3750 Arkusz danych(PDF) 2 Page - Linear Technology |
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LT3750 Arkusz danych(HTML) 2 Page - Linear Technology |
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2 / 16 page  2 LT3750 3750fa PARAMETER CONDITIONS MIN TYP MAX UNITS Minimum VCC ● 2.8 3 V Minimum VTRANS ● 2.5 3 V VCC Quiescent Current Not Switching, CHARGE = 5V 1.6 2.5 mA Not Switching, CHARGE = 0V 1 µA VTRANS Quiescent Current Not Switching, CHARGE = 5V 140 250 µA Not Switching, CHARGE = 0V 1 µA CHARGE Pin Current CHARGE = 24V 24 µA CHARGE = 5V 19 µA CHARGE = 0V 1 µA CHARGE Pin Enable Voltage ● 0.87 1.1 V CHARGE Pin Disable Voltage ● 0.2 0.6 V Minimum CHARGE Pin Low Time High →Low→High 20 µs VOUT Comparator Trip Voltage Measured RBG Pin ● 1.215 1.24 1.265 V VOUT Comparator Overdrive 1 µs Pulse Width, Measured on RBG Pin 30 mV RBG Pin Bias Current RBG = 1.2V 70 500 nA DCM Comparator Trip Voltage Measured as VDRAIN – VTRANS, RDCM = 43k (Note 3) ● 536 80 mV Current Limit Comparator Trip Voltage ● 68 78 88 mV DONE Output Signal High 100k Ω to 5V 4.9 5 V DONE Output Signal Low 100k Ω to 5V 0.1 0.2 V DONE Pin Leakage Current DONE = 2.5V 0.2 µA NMOS Minimum On Time 0.6 µs GATE Rise Time 50 ns GATE High Voltage CGATE = 1nF, VCC = 5V 3 3.8 4.5 V CGATE = 1nF, VCC = 24V 22 22.6 23.5 V GATE Turn Off Propagation Delay CGATE = 1nF 100 ns Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ VCC, VTRANS, GATE, DONE, CHARGE ...................... 24V RBG ....................................................................... 1.5V SOURCE ................................................................... 1V Current into RDCM Pin ........................................ ±1mA Current into RVOUT Pin ........................................ ±1mA Current into DONE Pin ......................................... ±1mA Operating Temperature Range (Note 2) .. – 40 °C to 85°C Storage Temperature Range ................ – 65 °C to 150°C Consult LTC Marketing for parts specified with wider operating temperature ranges. ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) LT3750EMS ORDER PART NUMBER MS PART MARKING LTBQD TJMAX = 125°C, θJA = 120°C/ W 1 2 3 4 5 VTRANS DONE CHARGE VCC GND 10 9 8 7 6 RBG RVOUT RDCM GATE SOURCE TOP VIEW MS PACKAGE 10-LEAD PLASTIC MSOP The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C. VCC = VTRANS = 5V unless otherwise specified. ELECTRICAL CHARACTERISTICS Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The LT3750E is guaranteed to meet performance specifications from 0 °C to 70°C. Specifications over the –40°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls. Note 3: Refer to Block Diagram for VDRAIN definition. |
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