LTC4000 e lecTrical characTerisTics The l denotes the specifications which apply over the full operatingjunction temperature range, otherwise specifications are at TA = 25°C. VIN = VCLN = 3V to 60V unless otherwise noted (Notes 2, 3). SYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS VIN Input Supply Operating Range l 3 60 V IIN Input Quiescent Operating Current 0.4 mA IBAT Battery Pin Operating Current VIN ≥ 3V, VCSN = VCSP ≥ VBAT l 50 100 µA Battery Only Quiescent Current VIN = 0V, VCSN = VCSP ≤ VBAT l 10 20 μA Shutdown ENC Input Voltage Low l 0.4 V ENC Input Voltage High l 1.5 V ENC Pull-Up Current VENC = 0V –4 –2 –0.5 µA ENC Open Circuit Voltage VENC = Open l 1.5 2.5 V Voltage Regulation VBFB_REG Battery Feedback Voltage 1.133 1.136 1.139 V l 1.120 1.136 1.147 V BFB Input Current VBFB = 1.2V ± 0.1 µA VOFB_REG Output Feedback Voltage l 1.176 1.193 1.204 V OFB Input Current VOFB = 1.2V ± 0.1 µA RFBG Ground Return Feedback Resistance l 100 400 Ω VRECHRG(RISE) Rising Recharge Battery Threshold Voltage % of VBFB_REG l 96.9 97.6 98.3 % VRECHRG(HYS) Recharge Battery Threshold Voltage Hysteresis % of VBFB_REG 0.5 % VOUT(INST_ON) Instant-On Battery Voltage Threshold % of VBFB_REG l 82 86 90 % VLOBAT Falling Low Battery Threshold Voltage % of VBFB_REG l 65 68 71 % VLOBAT(HYS) Low Battery Threshold Voltage Hysteresis % of VBFB_REG 3 % Current Regulation Ratio of Monitored-Current Voltage to Sense VIN,CLN ≤ 50mV, VIIMON/VIN,CLN l 18.5 20 21 V/V Voltage VCSP,CSN ≤ 50mV, VIBMON/VCSP,CSN VOS Sense Voltage Offset VCSP,CSN ≤ 50mV, VCSP = 60V or VIN,CLN ≤ 50mV, VIN = 60V (Note 4) –300 300 µV CLN, CSP, CSN Common Mode Range (Note 4) l 3 60 V CLN Pin Current ±1 µA CSP Pin Current VIGATE = Open, VIID = 0V 90 μA CSN Pin Current VBGATE = Open, VBAT = 0V 45 μA IIL Pull-Up Current for the Input Current Limit l –55 –50 –45 μA Programming Pin ICL Pull-Up Current for the Charge Current Limit l –55 –50 –45 μA Programming Pin ICL_TRKL Pull-Up Current for the Charge Current Limit VBFB < VLOBAT l –5.5 –5.0 –4.5 μA Programming Pin in Trickle Charge Mode Input Current Monitor Resistance to GND 40 90 140 kΩ Charge Current Monitor Resistance to GND 40 90 140 kΩ A4, A5 Error Amp Offset for the Current Loops VCL = 0.8V, VIL = 0.8V l –10 0 10 mV (See Figure 1) Maximum Programmable Current Limit l 0.985 1.0 1.015 V Voltage Range 4000fb For more information www.linear.com/LTC4000 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
