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Philips Semiconductors
Cost effective battery monitor and fast
charge IC for NiCd and NiMH chargers
CHARACTERISTICS
V
= 10 V; T
= 25 C; R
P
amb
SYMBOL
Supply
V
supply voltage
P
V
/ t
supply voltage start rate
P
V
clamping voltage
clamp
V
start-up voltage
start
V
power-down voltage level
pd
I
supply current
P
I
start-up current
start
V
stabilized voltage
S
V
voltage range at reference resistor
Rref
TC
temperature coefficient of the
Vref
reference voltage
I
current range of the reference
Rref
resistor
Temperature related input; NTC
V
input voltage level for detecting
i(co)
temperature cut-off
V
maximum input voltage level for
i(co; max)
detecting temperature cut-off
V
minimum input voltage level for
i(co; min)
detecting temperature cut-off
I
input current
NTC
Output drivers
LED pulse duty factor
LED
V
LED saturation voltage
LED(sat)
I
LED input leakage current
LI(LED)
Battery monitor
I
input battery current
i(bat)
V
voltage range for peak detection
bat
V
/V
peak detection level with respect to
bat
bat
top level
T
temperature range of peak
j
detection
Protections; BAT
V
low level battery protection voltage
bat(l)
V
high level battery protection voltage
bat(h)
Oscillator
k
correction factor
f
frequency range
osc
1996 Feb 26
= 33 k ; C
= 1 nF; unless otherwise specified.
ref
OSC
PARAMETER
CONDITIONS
I
= 25 mA
clamp
outputs off
V
= 4 V
P
I
= 1 mA
S
I
= 20 A
Rref
T
= 0 to 45 C
amb
V
= 1.5 V
NTC
I
= 15 mA
LED(sat)
V
= 15 V
LED
V
= 2.4 V
bat
V
= 2 V
bat
9
Objective specification
TEA1104; TEA1104T
MIN.
TYP.
5.45
11.5
0.5
11.5
12.8
6.1
6.4
6.7
4.65
5.05
5.45
3
45
50
4.03
4.25
4.46
1.18
1.25
1.31
60
10
100
0.75
0.81
0.87
0.92
1.0
1.08
1.85
2.0
2.15
5
+5
2.4
2.5
2.6
600
5
1
0.81
3.6
0.25
0
50
0.81
0.91
3.5
3.6
4.5
0.84
0.93
1.02
10
100
MAX.
UNIT
V
V/ s
V
V
V
mA
A
V
V
120
ppm/K
A
V
V
V
A
%
mV
A
nA
V
%
C
V
V
kHz
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