Datasheet

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+
DC/DC
Converter
2.7 V
0.125 V to 1.5 V
V
CC
7.5 k
2.5 k
Battery
0.5 V+
to 6.0 V
V
BAT1
ADC
+
DC/DC
Converter
2.7 V
0.125 V to 1.5 V
V
CC
5.0 k
5.0 k
Battery
0.25 V+
to 3.0 V
V
BAT2
ADC
t
coordinate
 2.625 s  t
REF
 N
AVG

N
BITS
1
ƒ
conv
 4.4 s

(10)
TSC2301
SLAS371D – SEPTEMBER 2002 – REVISED AUGUST 2004
Figure 64. VBAT Example Battery Measurement Functional Block Diagrams, VDD = 2.7 V, V
REF
= 2.5 V
Flowcharts which detail the process of making a battery input reading are shown in Figure 65 and Figure 66 .
The time needed to make temperature, auxiliary, or battery measurements is given by:
where t
REF
is the reference delay time as given in Table 14 .
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