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LTC3577EUFF-3PBF Datasheet(PDF) 9 Page - Linear Technology |
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LTC3577EUFF-3PBF Datasheet(HTML) 9 Page - Linear Technology |
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9 / 52 page  LTC3577-3/LTC3577-4 9 357734fa ELECTRICAL CHARACTERISTICS Pushbutton Controller. The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VOUT = 3.8V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Pushbutton Pin (ON) VOUT Pushbutton Operating Supply Range (Note 9) l 2.7 5.5 V VOUT UVLO VOUT Falling VOUT Rising Pushbutton is Disabled Below VOUT UVLO 2.5 2.7 2.8 2.9 V V VON_TH ON Threshold Rising ON Threshold Falling 0.4 0.8 0.7 1.2 V V ION ON Input Current VON = VOUT VON = 0V –1 –4 –9 1 –14 μA μA Power-On Input Pin (PWR_ON) VPWR_ON PWR_ON Threshold Rising PWR_ON Threshold Falling 0.4 0.8 0.7 1.2 V V IPWR_ON PWR_ON Input Current VPWR_ON = 3V –1 1 μA Status Output Pins (PBSTAT, EXTPWR, PGOOD) IPBSTAT PBSTAT Output High Leakage Current VPBSTAT = 3V –1 1 μA VPBSTAT PBSTAT Output Low Voltage IPBSTAT = 3mA 0.1 0.4 V IEXTPWR EXTPWR Pin Input Current VEXTPWR = 3V 0 1 μA VEXTPWR EXTPWR Pin Output Low Voltage IEXTPWR = 2mA 0.15 0.4 V IPGOOD PGOOD Output High Leakage Current VPGOOD = 3V –1 1 μA VPGOOD PGOOD Output Low Voltage IPGOOD = 3mA 0.1 0.4 V VTHPGOOD PGOOD Threshold Voltage (Note 13) –8 % Pushbutton Timing Parameters tON_PBSTAT1 ON Low Time to PBSTAT Low 50 ms tON_PBSTAT2 ON High to PBSTAT High PBSTAT Low > tPBSTAT_PW 900 μs tPBSTAT_PW PBSTAT Minimum Pulse Width 40 50 ms tON_PUP ON Low Time for Power Up 50 ms tON_RST ON Low to PGOOD Reset Low 12 14 16.5 Seconds tON_RST_PW PGOOD Reset Low Pulse Width 1.8 ms tPUP_PDN Minimum Time from Power Up to Down 1 Seconds tPDN_PUP Minimum Time from Power Down to Up 1 Seconds tPWR_ONH PWR_ON High to Power Up 50 ms tPWR_ONL PWR_ON Low to Power Down 50 ms tPWR_ONBK1 PWR_ON Power-Up Blanking PWR_ON Low Recognized from Power Up 1 Seconds tPWR_ONBK2 PWR_ON Power-Down Blanking PWR_ON High Recognized from Power Down 1 Seconds tPGOODH From Regulation to PGOOD High Buck1, 2 and LDO1 Within PGOOD Threshold 230 ms tPGOODL Bucks Disabled to PGOOD Low Bucks Disabled 44 μs tLDO2_BK1 LDO2 Enable to Buck Enable 12.5 14.5 17.5 ms 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 LTC3577-3/LTC3577-4 are guaranteed to meet performance specifications from 0°C to 85°C. Specifications over the –40°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls. Note 3: This IC includes over temperature protection that is intended to protect the device during momentary overload conditions. Junction temperatures will exceed 110°C when over temperature protection is active. Continuous operation above the specified maximum operating junction temperature may result in device degradation or failure. Note 4: VCC is the greater of VBUS, VOUT or BAT. |
Similar Part No. - LTC3577EUFF-3PBF |
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Similar Description - LTC3577EUFF-3PBF |
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