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LTC4255CG 数据表(PDF) 2 Page - Linear Technology |
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LTC4255CG 数据表(HTML) 2 Page - Linear Technology |
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2 / 16 page  LTC4255 2 4255f Supply Voltages VCC to DGND ....................................................... 18V VEE to AGND ...................................................... –80V DGND to AGND ................................................... ±5V Digital Pin Voltages SCL, SDA, FAULT ........................ DGND – 0.3V to 6V AD0-4 ....................................... DGND – 0.3V to 5.5V Relay Driver Output Voltage RELAY1-4 (Note 5) ...... DGND –0.3V to DGND + 15V Analog Voltages SENSE1-4 ............................... VEE – 0.3V to VEE + 1V OUT1-4 .................................. VEE – 80V to VEE + 80V Operating Temperature Range LTC4255C ............................................... 0 °C to 70°C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec).................. 300 °C ORDER PART NUMBER TJMAX = 125°C, θJA = 90°C/W LTC4255CG ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 12V, VEE = –48V, AGND = DGND = 0V (Note 2) Consult LTC Marketing for parts specified with wider operating temperature ranges. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 TOP VIEW G PACKAGE 28-LEAD PLASTIC SSOP 28 27 26 25 24 23 22 21 20 19 18 17 16 15 OUT1 GATE1 SENSE1 OUT2 GATE2 SENSE2 VEE OUT3 GATE3 SENSE3 OUT4 GATE4 SENSE4 AGND FAULT SCL SDA AD4 AD3 AD2 AD1 AD0 RELAY1 RELAY2 RELAY3 RELAY4 DGND VCC SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS DC Characteristics VCC Positive Supply Voltage VCC Referenced to DGND 10.8 12 13.2 V ICC Positive Supply Current Relays Off 2.1 3 mA All Relays On 10 15 mA VEE Negative Supply Voltage VEE Referenced to AGND –48 –72 V IEE Negative Supply Current –1.9 –3 mA ∆VGND DC Ground Difference AGND – DGND (Note 3) –5 5 V VLKO VEE Undervoltage Lockout –27 V ∆VGATE External Gate Voltage (VGATE – VEE)IGATE = –1µA 101315 V IGATE GATE Pin Output Current GATE On, VGATE = VEE –30 –50 –70 µA GATE Off, VGATE = VEE + 5V 30 50 80 µA VSC Short-Circuit Sense Voltage (VSENSE – VEE), VOUT – VEE = 0V q 125 150 170 mV VOC Open-Circuit Sense Voltage (VSENSE – VEE) q 1 3 4.5 mV VPG Power_OK Threshold Voltage (VOUT – VEE) q 123 V IOUT OUT Pin Current VOUT = VEE –1.4 µA VOLR Relay Driver Output Low Voltage (VRELAY – DGND), IRELAY = 50mA, RELAY On 0.3 V VCLAMPR Relay Driver Clamp Voltage (VRELAY – DGND), IRELAY = 50mA, 18 24 V RELAY Off (Note 5) VOLD Digital Output Low Voltage SDA, FAULT, I = 3mA q 0.4 V |
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