fs3861 Fortune Semiconductor Corporation, fs3861 Datasheet - Page 4

• Manufacturer Part Number: fs3861
• Description: Intelligent Charger Management Controller
• Manufacturer: Fortune Semiconductor Corporation

1. General Description
single-cell 4.2v/4.1v battery charger control IC which
includes
constant-voltage regulations of charge functions
addressed for linear charger mode operations in
typical
constant current, constant voltage, and charge
terminations (usually based on the minimum current
reached). The maintenance re-charge (or called
post-charge stage) proceeds if the full-charged battery
voltage is once again lower than the desired
full-capacity voltage because of consumptions of its
capacity which occurs either at the battery’s internal
voltage drop across its terminals, or at the use of the
battery.
1K-word OTP PROM and 64-Byte data RAM employs
a minimum numbers of external transistor and passive
resistor & capacitor devices to fulfill complete charger
implementations at cost-effective solutions.
for balanced area and cost effective requirements for
size-sensitive applications.
sequences of a variety of portable battery-powered
applications, such as cellular phone’s travel and base
charger
camcorder (DV), MP3 player ,etc.
2. Features
Fortune Semiconductor Corp.
The FS3861 is a low-cost high-performance Li+
This chip with built-in 8-bit RISC-type MCU with
The available 16-pin SSOP-16 package is offered
The FS3861 is suitable for the control of charge
Ideal for the Li-ion/polymer Single-Cell
4.2v/4.1v charge control.
Built-in 8-bit RISC-typed MCU with 1K-word
OTP program ROM and 64-Byte data RAM.
Integrated voltage and current regulation with
programmable charge current.
Supports typical Li+ battery’s charge
sequences such as pre-charge (trickle-mode
charge), C-C (constant-current charge), C-V
(constant-voltage charge), charge
terminations, and re-charge operations.
Batter than 1% charge voltage regulation
accuracy.
Charge operation can be monitored by the
external host through the general I/O data
bus.
four
all
devices,
the
phases:
required
digital
pre-charging
camera,
constant-current
conditioning,
digital-video
and
4/34
3. Applications
Features of the PWM voltage generation is
2 LED output for charge status.
Optional Temp and battery ID input through
Low-cost peripheral components of capacitor
Development kit of LQFP-64 ICE evaluation
SSOP-16 Package.
Cellular phone external base or built-in
MP3 player
External charger through USB
Digital still camera (DSC)
Digital video camcorder (DV)
Portable electronic device charger, etc.
complimentary to the provision of look-up
voltage table for use at specific intermediate
charge voltages or detected values for the
comparator’s function.
voltage sense input.
and resistor combinations for minimum BOM
cost in manufacturing considerations.
(EV) board and reference charge program
available for prototype design and facilitating
debug use.
charger
FS3861
Rev. 1.0