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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC4012-1 датащи(PDF) 3 Page - Linear Technology |
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LTC4012-1 датащи(HTML) 3 Page - Linear Technology |
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3 / 28 page  3 4012f LTC4012/ LTC4012-1/LTC4012-2 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 Charge Voltage Regulation VTOL VBAT Accuracy (See Test Circuits) LTC4012 l –0.5 –0.8 0.5 0.8 % % LTC4012-1/LTC4012-2 l –0.6 –0.8 0.6 0.8 % % IVFB VFB Input Bias Current VFB = 1.2V ±20 nA RON FBDIV On Resistance ILOAD = 100μA l 85 190 Ω ILEAK-FBDIV FBDIV Output Leakage Current SHDN = 0V, FBDIV = 0V l –1 0 1 μA VBOV VFB Overvoltage Threshold LTC4012 l 1.235 1.281 1.32 V BAT Overvoltage Threshold LTC4012-1/LTC4012-2, Relative to Selected Output Voltage l 103 106 109 % Charge Current Regulation ITOL Charge Current Accuracy with RIN = 3.01k, 6V < BAT < 18V (LTC4012) 6V < BAT < 15V (LTC4012-1, LTC4012-2) RPROG = 26.7k l –4 –5 4 5 % % VSENSE = 0mV, PROG = 1.2V –12.75 –11.67 –10.95 μA AI Current Sense Amplifier Gain (PROG ΔI) with RIN = 3.01k, 6V < BAT < 18V (LTC4012) 6V < BAT < 15V (LTC4012-1, LTC4012-2) VSENSE Step from 0mV to 5mV, PROG = 1.2V –1.78 –1.66 –1.54 μA VCS-MAX Maximum Peak Current Sense Threshold Voltage per Cycle (RIN = 3.01k) ITH = 2V ITH = 5V l l 140 195 325 250 430 mV mV VC10 C/10 Indicator Threshold Voltage PROG Falling 340 400 460 mV VREV Reverse Current Threshold Voltage PROG Falling 180 253 295 mV Input Current Regulation VCL Current Limit Threshold CLP – CLN l 97 96 100 100 103 104 mV mV ICLN CLN Input Bias Current CLN = CLP ±100 nA VICL ICL Indicator Threshold (CLP – CLN) – VCL –8 –5 –2 mV CLP Supply OVR Operating Voltage Range 6 28 V VUVLO CLP Undervoltage Lockout Threshold CLP Increasing l 4.65 4.85 5.25 V VUV(HYST) UVLO Threshold Hysteresis 200 mV ICLPO CLP Operating Current CLP = 20V, No Gate Loads 2 3 mA Shutdown VACP AC Present Threshold Voltage DCIN – BAT, DCIN Rising l 350 500 650 mV VACP(HYST) ACP Threshold Hysteresis Voltage 200 mV VIL SHDN Input Voltage Low l 300 mV VIH SHDN Input Voltage High l 1.4 V RIN SHDN Pull-Down Resistance 40 k Ω ICLPS CLP Shutdown Current CLP = 12V, DCIN = 0V SHDN = 0V l 15 350 25 500 μA μA ILEAK-BAT BAT Leakage Current SHDN = 0V or DCIN = 0V, 0V ≤ CSP = CSN = BAT ≤ 18V l –1 0 1 μA ILEAK-CSN CSN Leakage Current SHDN = 0V or DCIN = 0V, 0V ≤ CSP = CSN = BAT ≤ 20V l –1 0 1 μA |
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