beautypg.com

Block diagram – Philips TEA1104T User Manual

Page 3

background image

1996 Feb 26

3

Philips Semiconductors

Objective specification

Cost effective battery monitor and fast
charge IC for NiCd and NiMH chargers

TEA1104; TEA1104T

BLOCK DIAGRAM

handbook, full pagewidth

MGE354

SAMPLE-

AND-HOLD

FILTER

BATTERY

FULL

DETECTOR

OR

OR

SUPPLY

MODE

LATCH

OSCILLATOR

TIMER

fast

trickle

CONTROL

battery high

protection

battery low

protection

Tmax

Tmin

Tcut-off

trickle

TO

4

6

2

7

1

8

5

3

Rref

VS

VP

Vbat

NTC

OSC

LED

GND

POR

TEA1104

TEA1104T

Fig.1 Block diagram.