ADI LTC4008EGN#PBF

多化学-40°C ~ 85°C（TA）

Overview

The LTC4008EGN is a constant-current/constant-voltage charger controller. The PWM controller uses a synchronous, quasi-constant frequency, constant off-time architecture that will not generate audible noise even when using ceramic capacitors. Charging current is programmable with a sense resistor and programming resistor to ±4% typical accuracy. Charging current can be monitored as a voltage across the programming resistor. An external resistor divider and precision internal reference set the final float voltage.

The LTC4008EGN includes a thermistor sensor input that will suspend charging if an unsafe temperature condition is detected and will automatically resume charging when battery temperature returns to within safe limits; a FAULT pin indicates this condition. A FLAG pin indicates when charging current has decreased below 10% of the programmed current. An external sense resistor programs AC adapter current limiting. The ICL pin indicates when the charging current is being reduced by input current limiting so that the charging algorithm can adapt.

Features

Tube Package
Addtional features of ALSO OPER IN ADJ MODE FROM 3 TO 28 V; ALSO OPER IN AVER CUR MODE; CONS OFF TIME TECH ALSO POS
20-SSOP (0.154, 3.90mm Width) package

Surface Mount Mounting Type

Applications

There are a lot of Linear Technology/Analog Devices
LTC4008EGN#PBF Battery Chargers ICs applications.

• Golf carts
• Forklift
• Pallet jacks
• Personnel carriers
• Maintenance shops
• Rental fleets
• Truck dealers
• Floor scrubber
• Material handling
• Man lift