TEA1104T/N2 Просмотр технического описания (PDF) - Philips Electronics

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производитель

TEA1104T/N2

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

Philips Electronics 

Philips Semiconductors

Cost effective battery monitor and fast

charge IC for NiCd and NiMH chargers

Objective specification

TEA1104; TEA1104T

handbook, full pagewidth

Vs > 11.5 V

yes

clamp at 11.5 V

IDDmax = 25 mA

circuit active

START

no

no

6.2 V < Vs < 11.5 V

yes

total reset logic

set TIME OUT (e.g. 111 min)

set Tmax (e.g. 48 oC)

Tmin (e.g. 20 oC)

circuit active

Vs < 5.25 V

yes

circuit non-active

IDD ≤ 45 µA

Vbat < 0.81 V

or Tbat < Tmin

or Tbat > Tmax

(note 1)

yes

trickle charge

Ifast / 40

yes

dual LED

indication

(note 2)

yes

FULL FAST

OFF blinks

no

FAST

no

blinks

0.81 V < Vbat < 3.6 V

and

Tmin < Tbat < Tmax

(note 5)

no

(note 3)

yes

FAST charge

set Tcut-off (e.g. 55 oC)

yes

dual LED

no

indication

yes

FULL FAST

FAST

ON

stop charge

total reset

open battery

dual LED

indication

yes

FULL FAST

OFF ON

OFF OFF

FAST

no

OFF

-∆Vbat ≥ 0.25%

no

and

tdis > 3% TO

TIME OUT > 111 min

no

(TO)

(1) Vbat < 0.81 V due to empty or flat battery.

(2) For single LED application see Fig.7, for dual LED

application see Fig.6.

(3) Vbat > 3.6 V due to system occurrence or an external

inhibit via pin Vbat.

(4) Release via reset.

(5) Tmin = VNTC ≥ 2 V; Tmax = VNTC ≤ 1 V;

Tcut-off = VNTC ≤ 0.81 V.

battery is FULL

trickle charge

Ifast / 40

(note 4)

yes

dual LED

indication

yes

FULL FAST

ON OFF

FAST

no

blinks

Fig.5 Flow chart of the TEA1104.

Tbat ≥ 55 oC

no

(TCO)

MGE359

1996 Feb 26

7

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