LTC4000EUFD#PBF

LTC4000 is a high voltage, high performance controller that converts many externally compensated DC/DC power supplies into full-featured battery chargers. It features battery charger which include accurate (±0.25%) programmable float voltage, selectable timer or current termination, temperature qualified charging using an NTC thermistor, automatic recharge, C/10 trickle charge for deeply discharged cells, bad battery detection and status indicator outputs. The battery charger also includes precision current sensing that allows lower sense voltages for high current applications. It supports intelligent PowerPath control. An external PFET provides low loss reverse current protection. Another external PFET provides low loss charging or discharging of the battery. It is used in applications such as high power battery charger systems, high performance portable instruments, industrial battery equipped devices, notebook/subnotebook computers etc.

• Complete high performance battery charger when paired with a DC/DC converter
• Input supply operating range is 3V to 60V
• Input ideal diode for low loss reverse blocking and load sharing
• Instant-on operation with heavily discharged battery
• Programmable input and charge current: 1% accuracy
• Programmable C/X or timer based charge termination
• NTC input for temperature qualified charging
• Input quiescent operating current is 0.4mA typ at (TA = 25°C, VIN = VCLN = 3V to 60V)
• Operating temperature is -40°C to 125°C
• Package style is 28-lead plastic SSOP

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