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LTC4110EUHF-PBF Datasheet(PDF) 5 Page - Linear Technology |
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LTC4110EUHF-PBF Datasheet(HTML) 5 Page - Linear Technology |
5 / 52 page LTC4110 5 4110fa ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. Unless otherwise specified, VDCIN = VDCOUT = VDCDIV = 12V, VBAT = 8.4V, GND = SGND = CLP = CLN = SHDN = 0V and RVREF = 49.9k. All currents into device pins are positive and all currents out of device pins are negative. All voltages are referenced to GND, unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Input and Battery Ideal Diodes and Switches VFR Forward Regulation Voltage (VDCIN-VDCOUT, VBAT -VDCOUT) 2.7V ≤ VDCIN ≤ 19V l 10 20 32 mV VREV Reverse Voltage Turn-Off Voltage (VDCIN-VDCOUT, VBAT -VDCOUT) 2.7V ≤ VDCIN ≤ 19V l –30 –18 –8 mV VGON “ON” Gate Clamping Voltage (VDCIN-VINID, VBAT -VBATID) IINID, IBATID = 1μA 7 8.3 9.7 V VGOFF “OFF” Gate Voltage (VDCIN-VINID, VBAT-VBATID)IINID, IBATID = –10μA VSHDN = 0V and VDCIN (Shutdown) 0.25 V VFO BATID Fast-On Voltage Comparator Threshold IBATID > 500μA 45 100 mV tIIDON tIIDOFF INID Pin Delay Times Turn “ON” Turn “OFF” CINID = 10nF DCIN is Switched Between 12.2V and 11.8V From DCOUT – VGOFF to DCOUT –6V From DCOUT – VGON to DCOUT –1.5V 450 8 700 20 μs μs tBIDON tBIDOFF BATID Pin Delay Times Turn “ON” Turn “OFF” CBATID = 2.5nF BAT is Switched Between 12.2V and 11.8V From DCOUT – VGOFF to DCOUT –6V From DCOUT – VGON to DCOUT –1.5V 15 8 60 20 μs μs PWM Flyback Converter VOHF CHGFET, DCHFET High ICHGFET, IDCHFET = –1mA 4.5 4.75 5.25 V VOLF CHGFET, DCHFET Low ICHGFET, IDCHFET = 1mA 50 mV VOLFX CHGFET, DCHFET in Shutdown and Backup Modes VDCIN = VDCDIV = VDCOUT = 0V (Shutdown Mode), VDCIN = VDCDIV = 0V (Backup Mode) ICHGFET, IDCHFET = 1μA 100 mV tR tF CHGFET, DCHFET Transition Times Rise Time Fall Time CLOAD = 1.6nF, 10% to 90% CLOAD = 1.6nF, 10% to 90% 35 15 65 65 ns ns FPWM PWM Oscillator Switching Frequency l 255 300 340 kHz SafetySignal Decoder and Thermistor Interface SSOR SafetySignal Decoder SafetySignal Trip (RES_COLD/RES_OR) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) RTHB = 54.9k ±1%. Smart Batteries and Li-Ion Only l 95 100 105 k SSCLD SafetySignal Decoder SafetySignal Trip (RES_IDEAL/RES_COLD) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) RTHB = 54.9k ±1% Smart Batteries and Li-Ion Only l 28.5 30 31.5 k SSIDL SafetySignal Decoder SafetySignal Trip (RES_HOT/RES_IDEAL) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) RTHB = 54.9k ±1% Smart Batteries and Li-Ion Only l 2.85 3 3.15 k SSHOT SafetySignal Decoder SafetySignal Trip (RES_UR/RES_HOT) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) RTHB = 54.9k ±1% Smart Batteries and Li-Ion Only l 425 500 575 Ω VHOT THB Pin Hot Threshold Voltage VTHB Decreasing; Lead Acid Only l 0.28 • VTHA 0.30 • VTHA 0.36 • VTHA V VHOTH THB Pin Hot Threshold Hysteresis Voltage VTHB Increasing; Lead Acid Only 50 mV VREM THB Pin Battery Removal Threshold Voltage VTHB Increasing; Lead Acid Only l 0.90 • VTHA 0.94 • VTHA 0.96 • VTHA V |
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