BQ2018TS-E1 Datasheet, PDF (3/25 Pages) Texas Instruments – Power Minder IC

bq2018
SR1
Differential
SR2
Dynamically
Balanced VFC
WAKE
Calibration
and Power
Control
System
I/O
and
Control
HDQ
RAM
and
RBI
Counters
128 x 8
Bandgap
Voltage
Reference
Temperature-
Compensated
Precision
Oscillator
Timer
Counter
Control
Optional
(External)
ds
g
VCC
REG
Temperature
Sensor
VDD (Internal)
Vref
VSS
BD201801.eps
Figure 1. bq2018 Block Diagram
Table 1. Operational States
HDQ Pin
HDQ High
HDQ High
HDQ Low
DCR/CCR/SCR
yes
yes
no
WOE
|V_SRO| > V_WOE
|V_SRO| < V_WOE
|V_SRO| < V_WOE
WAKE
Low
High Z
High Z
Note:
V_SRO is the voltage difference between SR1 and SR2 plus the offset voltage V_OS.
Operating State
Normal
Normal
Sleep
3