TEA1104 Philips Semiconductors, TEA1104 Datasheet - Page 2

• Manufacturer Part Number: TEA1104
• Description: Cost effective battery monitor and fast charge IC for NiCd and NiMH chargers
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FEATURES
QUICK REFERENCE DATA
ORDERING INFORMATION
1996 Feb 26
V
I
V
I
V
V
f
P
bat
osc
V
Accurate detection of fully charged batteries by
currentless peak voltage sensing
Switch-over from fast to safe trickle charge current at
battery full detection
Fast charge termination back-up by maximum time and
maximum temperature detection
Several trickle charge drive possibilities for mains
isolated and non-mains isolated systems
Battery checking to protect against short-circuited and
open batteries
Battery monitor allows recharging of different battery
packs in the same charger
Dual LED indicator provision
External regulator not required because of large input
voltage range
Few low cost external components required.
P
bat
bat(l)
bat(h)
TEA1104T
Cost effective battery monitor and fast
charge IC for NiCd and NiMH chargers
NUMBER
SYMBOL
TEA1104
bat
TYPE
/V
bat
supply voltage
supply current
voltage range of battery full detection
voltage peak detection level with
respect to top value
battery monitor input current
battery voltage protection low
battery voltage protection high
oscillator frequency
NAME
DIP8
SO8
PARAMETER
plastic dual in-line package; 8 leads (300 mil)
plastic small outline package; 8 leads; body width 3.9 mm
outputs off
DESCRIPTION
2
CONDITIONS
APPLICATIONS
GENERAL DESCRIPTION
The TEA1104 is manufactured in a BiCMOS process
intended to be used as a battery monitor circuit in charge
systems for NiCd and NiMH batteries. It is especially
designed for cost effective compact consumer
applications.
The circuit is able to detect fully charged batteries by
currentless battery voltage sensing. Several output drive
functions are available to control the (reduced) trickle
charge current to keep the batteries full with maximum life
expectations.
The battery full detection is backed up by two independent
mechanisms to make the system fail safe; maximum time
and maximum temperature.
PACKAGE
Portable telephone
Portable computer
Portable audio
Portable video.
5.45
0.81
3.5
10
MIN.
TEA1104; TEA1104T
0.25
0.81
3.6
TYP.
Objective specification
11.5
3
3.6
1
0.91
100
MAX.
VERSION
SOT97-1
SOT96-1
V
mA
V
%
nA
V
V
kHz
UNIT