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LTC4120-4.2 Datasheet(PDF) 3 Page - Linear Technology |
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LTC4120-4.2 Datasheet(HTML) 3 Page - Linear Technology |
3 / 32 page LTC4120/LTC4120-4.2 3 4120fe For more information www.linear.com/LTC4120 elecTrical characTerisTics The l denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = VRUN = 15V, VCHGSNS = VBAT = 4V, RPROG = 3.01k, VFB = 2.29V (LTC4120), VBATSNS = 4V (LTC4120-4.2). Current into a pin is positive out of the pin is negative. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Operating Input Supply Range l 12.5 40 V Battery Voltage Range 0 11 V IIN DC Supply Current Switching, FREQ = GND 3.5 mA Standby Mode (Note 3) l 130 220 µA Sleep Mode (Note 3) LTC4120: VFB = 2.51V (Note 5), LTC4120-4.2: VBATSNS = 4.4V l 60 100 µA Disabled Mode (Note 3) l 37 70 µA Shutdown Mode (Note 3) l 20 40 µA ∆VDUVLO Differential Undervoltage Lockout VIN-VBAT Falling, VIN = 5V (LTC4120), VIN-VBATSNS Falling, VIN = 5V (LTC4120-4.2) l 20 80 160 mV Hysteresis VIN-VBAT Rising, VIN = 5V (LTC4120), VIN-VBATSNS Rising, VIN = 5V (LTC4120-4.2) 115 mV UVINTVCC INTVCC Undervoltage Lockout INTVCC Rising, VIN = INTVCC + 100mV, VBAT = NC l 4.00 4.15 4.26 V Hysteresis INTVCC Falling 220 mV INTVCC Regulated Voltage l 4.14 4.24 4.29 V INTVCC Load Regulation IINTVCC = 0mA to –5mA (Note 4) 1.7 % Battery Charger IBAT BAT Standby Current Standby Mode (LTC4120) (Notes 3, 7, 8) Standby Mode (LTC4120-4.2) (Notes 3, 7, 8) l l 2.5 50 4.5 1000 µA nA BAT Shutdown Current Shutdown Mode (LTC4120) (Notes 3, 7, 8) Shutdown Mode (LTC4120-4.2) (Notes 3, 7, 8) l l 1100 10 2000 1000 nA nA IBATSNS BATSNS Standby Current (LTC4120-4.2) Standby Mode (Notes 3, 7, 8) l 5.4 10 µA BATSNS Shutdown Current (LTC4120-4.2) Shutdown Mode (Notes 3, 7, 8) l 1100 2000 nA IFB Feedback Pin Bias Current (LTC4120) VFB = 2.5V (Notes 5, 7) l 25 60 nA IFBG(LEAK) Feedback Ground Leakage Current (LTC4120) Shutdown Mode (Notes 3, 7) l 1 µA RFBG Feedback Ground Return Resistance (LTC4120) l 1000 2000 Ω VFB(REG) Feedback Regulation Voltage (LTC4120) (Note 5) l 2.393 2.370 2.400 2.407 2.418 V V VFLOAT Regulated Float Voltage (LTC4120-4.2) l 4.188 4.148 4.200 4.212 4.227 V V ICHG Battery Charge Current RPROG = 3.01k RPROG = 24.3k l l 383 45 402 50 421 55 mA mA VUVCL Undervoltage Current Limit VIN Falling 12.0 V VRCHG Battery Recharge Threshold VFB Falling Relative to VFB_REG (LTC4120) (Note 5) l –38 –50 –62 mV VRCHG_4.2 Battery Recharge Threshold VBATSNS Falling Relative to VFLOAT (LTC4120-4.2) l –70 –92 –114 mV hPROG Ratio of BAT Current to PROG Current VTRKL < VFB < VFB(REG) (LTC4120) (Note 5) VTRKL_4.2 < VBATSNS < VFLOAT (LTC4120-4.2) 988 mA/mA VPROG PROG Pin Servo Voltage l 1.206 1.227 1.248 V RSNS CHGSNS-BAT Sense Resistor IBAT = –100mA 300 mΩ |
Similar Part No. - LTC4120-4.2_15 |
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Similar Description - LTC4120-4.2_15 |
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