TEA1103 Ver la hoja de datos (PDF) - Philips Electronics
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TEA1103 Datasheet PDF : 28 Pages
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Philips Semiconductors
Fast charge ICs for NiCd and NiMH
batteries
Preliminary specification
TEA1103; TEA1103T;
TEA1103TS
CHARACTERISTICS
VP = 10 V; Tamb = 25 °C; Rref = 62 kΩ; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
Supplies; pins VP, VS, Rref and Vsl
VP
IP
Istb
Vclamp
Vstart
VLSP
VS
VSL
Vref
TCVref
supply voltage
supply current
standby current
clamping voltage (pin 12)
start voltage
low supply protection level
source voltage (stabilized)
LED source voltage
reference voltage
temperature coefficient of the
reference voltage
∆Vref/∆VP
power supply rejection ratio of
the reference voltage
∆Vref
load rejection of source
voltage
IRref
current range of reference
resistor
outputs off; VP = 11.5 V
VP = 4 V
Iclamp = 30 mA
IS = 2 mA
ILED = 50 µA
Iref = 20 µA; VP = 10 V
Tamb = 0 to 45 °C;
Iref = 20 µA; Vref = 1.25 V
f = 100 Hz; VP = 8 V;
∆VP = 2 V (p-p)
∆IS = 20 mA; VP = 10 V
5.5
−
−
11.5
6.1
5.1
4.14
4.05
1.21
0
−46
−
10
Charge current regulation; pins IB and Rref
IIB/Iref
VthIB
IIB
IIB(max)
IIB(Lmax)
IIB(LI)
fast charge ratio
threshold voltage at pin IB
charge current
maximum charge current
maximum load current
input leakage current
VIB = 0
Iref = 10 µA
Iref = 100 µA
Tamb = 25 °C
Tamb = 0 to 45 °C
top-off mode; VIB = 0
voltage regulation full
NiCd/NiMH battery; VIB = 0
open battery; VIB = 0
currentless mode
0.93
0.93
−2
−3
2.6
9
34
−
Refresh; pin RFSH
VRsense
VRFSH
sense resistor voltage
refresh voltage for
programming start of refresh
Irefresh = R-----sV---e-I--nB--s---e- ; refresh 75
mode; Irefresh = 18 mA
NiCd/NiMH
0
Vbat
voltage at pin Vbat for
NiCd/NiMH
detecting end of refresh
0.96
TYP.
−
4
35
−
6.4
5.3
4.25
4.25
1.25
±60
−
−
−
1.03
1.0
−
−
3.2
10.5
42
−
100
−
1.0
MAX. UNIT
11.5
6
45
12.8
6.7
5.5
4.36
4.45
1.29
±120
−
5
100
V
mA
µA
V
V
V
V
V
V
ppm/K
dB
mV
µA
1.13
1.07
+2
mV
+3
mV
3.8
µA
12
µA
50
µA
170
nA
125
mV
250
mV
1.04
V
1999 Jan 27
13
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