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LTC4009CUF-2-TRPBF Datasheet(PDF) 4 Page - Linear Technology |
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LTC4009CUF-2-TRPBF Datasheet(HTML) 4 Page - Linear Technology |
4 / 28 page LTC4009 LTC4009-1/LTC4009-2 4 4009fb ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. DCIN = 20V, BAT = 12V, GND = 0V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS ILEAK-BAT BAT Leakage Current SHDN = 0V or DCDIV = 0V, 0V ≤ CSP = CSN = BAT ≤ 20V l –1 0 1 μA ILEAK-CSN CSN Leakage Current SHDN = 0V or DCDIV = 0V, 0V ≤ CSP = CSN = BAT ≤ 20V l –1 0 1 μA ILEAK-CSP CSP Leakage Current SHDN = 0V or DCDIV = 0V, 0V ≤ CSP = CSN = BAT ≤ 20V l –1 0 1 μA ILEAK-SW SW Leakage Current SHDN = 0V or DCDIV = 0V, 0V ≤ SW ≤ 20V l –1 0 2 μA INTVDD Regulator INTVDD Output Voltage No Load l 4.85 5 5.15 V ΔVDD Load Regulation IDD = 20mA –0.4 –1 % IDD Short-Circuit Current (Note 6) INTVDD = 0V 50 85 120 mA Switching Regulator VCE Charge Enable Threshold Voltage CLP – BAT, CLP Rising l 65 100 135 mV IITH ITH Current ITH = 1.4V –40/+90 μA fTYP Typical Switching Frequency 467 550 633 kHz fMIN Minimum Switching Frequency CLOAD = 3.3nF 20 25 kHz DCMAX Maximum Duty Cycle CLOAD = 3.3nF 98 99 % tR-TG TGATE Rise Time CLOAD = 3.3nF, 10% – 90% 60 110 ns tF-TG TGATE Fall Time CLOAD = 3.3nF, 90% – 10% 50 90 ns tR-BG BGATE Rise Time CLOAD = 3.3nF, 10% – 90% 60 90 ns tF-BG BGATE Fall Time CLOAD = 3.3nF, 90% – 10% 60 110 ns tNO TGATE, BGATE Non-Overlap Time CLOAD = 3.3nF, 10% – 10% 110 ns Float Voltage Select Inputs (LTC4009-1/LTC4009-2 Only) VIL Input Voltage Low 0.5 V VIH Input Voltage High 3.5 V IIN Input Current 0V ≤ VIN ≤ 5V –10 10 μA Indicator Outputs VOL Output Voltage Low ILOAD = 100μA, PROG = 1.2V 500 mV ILEAK Output Leakage SHDN = 0V, DCDIV = 0V, VOUT = 20V l –10 10 μA IC10 CHRG C/10 Current Sink CHRG = 2.5V l 15 25 38 μA 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 LTC4009 is guaranteed to meet performance specifications over the 0°C to 85°C operating temperature range. Note 3: Operating junction temperature TJ (in °C) is calculated from the ambient temperature TA and the total continuous package power dissipation PD (in watts) by the formula TJ = TA + (θJA • PD). Refer to the Applications Information section for details. Note 4: All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to GND, unless otherwise specified. Note 5: This threshold is guaranteed to be satisfied if CLP = DCIN when the LTC4009 exits shutdown. Note 6: Output current may be limited by internal power dissipation. Refer to the Applications Information section for details. |
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