BQ2018TS-E1 Datasheet, PDF (13/25 Pages) Texas Instruments – Power Minder IC

bq2018
Performance Characteristics (T_A = T_OPR)
Symbol
V_OS
OSC
INR
INL
Parameter
Offset voltage
Timer accuracy
Integrated non-
repeatability error
Integrated
non-linearity
Typical
1.5
0.5
1.0
Maximum
±500
±3.0
1.0
2.0
Unit
Notes
µV Voltage offset between SR1 and SR2
% V_CC =3.5 - 3.9V (T_A = 0–70°C)
%
Measured repeatability given similar
operating conditions
Add 0.05% per °C above or below
% 25°C and 0.5% per volt above or be-
low 3.7V.
Standard Serial Communication Timing Specification (T_A = TOPR)
Symbol
Parameter
Minimum Typical Maximum Unit
t_CYCH
Cycle time, host to bq2018 (write)
190
-
-
µs
t_CYCB
Cycle time, bq2018 to host (read)
190
205
250
µs
t_STRH
Start hold, host to bq2018 (write)
5
-
-
ns
t_STRB
Start hold, bq2018 to host (read)
32
-
-
µs
t_DSU,B
Data setup
-
-
50
µs
t_DH
Data hold
90
-
-
µs
t_DV
Data valid
-
-
80
µs
t_SSUB
Stop setup (bq2018 to host)
-
-
95
µs
t_SSU
Stop setup (host to bq2018)
-
-
145
µs
t_B
Break
190
-
-
µs
t_BR
Break recovery
40
-
-
µs
t_RSPS
Response time, bq2018 to host
190
-
320
µs
t_RR
Read recovery
40
-
-
µs
Notes
Host read to next
cycle
13