Controller

ISL6251 Datasheet PDF – Battery Charger Controller

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Part Number: ISL6251

Function: Low Cost Multi Chemistry Battery Charger Controller

Package: QFN 28 Pin, QSOP 24 Pin Type

Manufacturer: Intersil

Pinouts:

ISL6251 datasheet

 

Description

The ISL6251, ISL6251A is a highly integrated battery charger controller for Li-Ion/Li-Ion polymer batteries and NiMH batteries. High Efficiency is achieved by a synchronous buck topology and the use of a MOSFET, instead of a diode, for selecting power from the adapter or battery.

The low side MOSFET emulates a diode at light loads to improve the light loadefficiency and prevent system bus boosting.

Featrues :

1. Output for Current Drawn from AC Adapter

2. AC Adapter Present Indicator

3. Fast Input Current Limit Response

4. Input Voltage Range 7V to 25V

5. Supports 2, 3 and 4 Cells Battery Pack

6. Up to 17.64V Battery-Voltage Set Point

7. Thermal Shutdown

8. Support Pulse Charging

9. Less than 10μA Battery Leakage Current

10. Charge Any Battery Chemistry: Li-Ion, NiCd, NiMH, etc.

11. Pb-Free (RoHS Compliant)

 

components

Applications:

1. Notebook, Desknote and Sub-notebook Computers

2. Personal Digital Assistant

Other data sheets are available within the file:

ISL6251AHAZ, ISL6251AHRZ, ISL6251HAZ, ISL6251HRZ

 

ISL6251 Datasheet PDF Download


ISL6251 pdf

FD650S Datasheet PDF – LED Drive Controller – FDHISI

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Part Number: FD650S

Function: LED Drive Controller / Keyboard Scan ASIC

Package: DIP 16 Pin ( FD650K ), SOP 16 Pin ( FD650S )

Manufacturer: Fuda Hisi Microelectronics

Image:

FD650S image

Description

LED Driver FD650 is an interface with a keyboard scanning circuit drive control dedicated circuit. Internal MCU integrated input  Output controls the digital interface, data latches, LED drive, keyboard scanning, brightness adjustment and other circuitry. The chip resistance Stable, reliable, strong anti-interference ability, can be adapted to long-term applications 24 hours of continuous work.

 

Pinout

fd650s-datasheet-pinout

 

Features

1. Display mode : 8 segments × 4 digits

2. The segment drive current is not less than 25mA and the word drive current is not less than 150mA

3. Provides 8 levels of brightness control

4. Keyboard scanning : 7 × 4bit

5. High-speed two-wire serial interface

6. Built-in clock oscillation circuit

7. Built-in power-on reset circuit

8. Supports 3V to 5.5V supply voltage

Applcation Circuit

FD650S Datasheet

FD650S Datasheet PDF

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