Users Manual

FSC-BT806 Datasheet
Shenzhen Feasycom Technology Co.,Ltdwww.feasycom.com
-38-
5.3 Input/output Terminal Characteristics
5.3.1 Digital
Table 13: DC Characteristics (V
DD
- V
SS
= 3 ~ 3.6 V, T
A
= 25C)
Parameter
Min
Type
Max
Unit
Input Voltage
V
IL
- Standard IO Low levelinput voltage
-0.4
-
0.4
V
V
IH
- Standard IO Low levelinput voltage
0.7XVDD_IO
-
VDD_IO+0.4
V
Tr/Tf
-
-
25
nS
Output Voltage
V
OL
- Low Level Output Voltage, I
OL
=4mA
-
-
0.4
V
V
OH
- High Level Output Voltage, I
OH
=-4mA
0.7XVDD_IO
-
-
V
Tr/Tf
-
-
5
nS
Input and Tristate Currents
Strong pull-up
-150
-40
-10
uA
Strong pull-down
10
40
150
uA
Weak pull-up
-5
-1.0
-0.33
uA
Weak pull-down
0.33
1.0
5.0
uA
C
I
Input Capacitance
1.0
-
5.0
pF
5.3.2Battery Charger
Table 14:Battery Charger
Parameter
Min
Type
Max
Unit
Battery Charger
Input voltage, VCHG
4.75 / 3.10(a)
5.00
5.75 /6.50(b)
V
(a)Reduced specification from 3.1V to 4.75V. Full specification >4.75V.
(b) Standard maximum input voltage is 5.75V, a 6.50V maximum depends on firmware version and implementation of
over-temperatureprotection software, for more information contact Feasycom.
Trickle Charge Mode
Charge current I
trickle
, as percentage of fast charge current
8
10
12
%
V
fast
rising threshold
-
2.9
-
V
V
fast
rising threshold trim step size
-
0.1
-
V
V
fast
falling threshold
-
2.8
-
V
Fast Charge Mode
Charge current during
constantcurrent mode, I
fast
Max, headroom >0.55V
Min, headroom >0.55V
194
-
200
10
206
-
mA
mA