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LTC4215 Datasheet(PDF) 3 Page - Linear Technology |
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LTC4215 Datasheet(HTML) 3 Page - Linear Technology |
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3 / 28 page  LTC4215/LTC4215-2 3 4215fe ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VDD = 12V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Supplies VDD Input Supply Range l 2.9 15 V VOV(VDD) Input Supply Overvoltage Threshold l 15 15.6 16.5 V IDD Input Supply Current l 35 mA VDD(UVL) Input Supply Undervoltage Lockout VDD Rising l 2.75 2.84 2.89 V VDD(HYST) Input Supply Undervoltage Lockout Hysteresis l 75 100 125 mV INTVCC Internal Regulator Voltage VDD ≥ 3.3V l 2.9 3.1 3.4 V INTVCC(UVL) INTVCC Undervoltage Lockout INTVCC Rising l 2.55 2.64 2.79 V INTVCC(HYST) INTVCC Undervoltage Lockout Hysteresis l 20 55 75 mV Current Limit and Circuit Breaker ΔVSENSE(TH) Circuit Breaker Threshold (VDD – VSENSE) l 22.5 25 27.5 mV ΔVSENSE Current Limit Voltage (VDD – VSENSE)VFB = 1.3V VFB = 0V Start-Up Timer Expired l l l 22 6.5 65 25 10 75 29 13 90 mV mV mV tD(OC) OC Fault Filter ΔVSENSE = 50mV, LTC4215 ΔVSENSE = 50mV, LTC4215-2 l l 15 300 20 420 30 600 μs μs ISENSE(IN) SENSE +/– Input Current VSENSE = 12V l 10 20 35 μA Gate Drive ΔVGATE External N-Channel Gate Drive (VGATE – VSOURCE) (Note 3) VDD = 2.9V to 15V l 4.7 5.9 6.5 V IGATE(UP) External N-Channel Gate Pull-Up Current Gate On, VGATE = 0V l –15 –20 –30 μA IGATE(DN)SLOW External N-Channel Gate Pulldown Current Gate Off, VGATE = 15V l 0.8 1 1.6 mA IGATE(DN)FAST Pulldown Current From GATE to SOURCE During OC/UVLO VDD – SENSE = 100mV, VGS = 4V l 300 450 700 mA tPHL(SENSE) (VDD – SENSE) High to GATE Low VDD – SENSE = 100mV, CGS = 10nF l 0.5 1 μs VGS(POWERBAD) Gate-Source Voltage for Power Bad Fault VSOURCE = 2.9V – 15V l 3.8 4.3 4.7 V ORDER INFORMATION LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC4215CGN LTC4215CGN#TR 4215 16-Lead Plastic TSSOP 0°C to 70°C LTC4215IGN LTC4215IGN#TR 4215I 16-Lead Plastic TSSOP –40°C to 85°C LTC4215CUFD LTC4215CUFD#TR 4215 24-Lead (4mm × 5mm) Plastic QFN 0°C to 70°C LTC4215IUFD LTC4215IUFD#TR 4215 24-Lead (4mm × 5mm) Plastic QFN –40°C to 85°C LTC4215CUFD-2 LTC4215CUFD-2#TR 42152 24-Lead (4mm × 5mm) Plastic QFN 0°C to 70°C LTC4215IUFD-2 LTC4215IUFD-2#TR 42152 24-Lead (4mm × 5mm) Plastic QFN –40°C to 85°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/ |
Similar Part No. - LTC4215_15 |
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Similar Description - LTC4215_15 |
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