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DS2740BU+

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DS2740
16 of 16
Input Logic Low: DQ,
PIO
V
IL
(Note 1) 0.6 V
Output Logic Low:
DQ, PIO
V
OL
I
OL
= 4mA (Note 1) 0.4 V
DQ, PIO Input
Pulldown Current
I
PD
V
DD
= 4.2V,
V
DQ
= 0.4V
0.5
μA
OVD Input Leakage IL
OVD
PIO bit = 1
-1 1
μA
DQ Capacitance C
DQ
50 pF
DQ Low to Sleep Time t
SLEEP
(Note 3) 2.0 2.4 s
ELECTRICAL CHARACTERISTICS: 1-Wire INTERFACE—STANDARD SPEED
(2.7V ≤ V
DD
≤ 5.5V; T
A
= -20°C to +70°C.)
PARAMETER SYMBOL MIN TYP MAX UNITS
Time Slot t
SLOT
60 120 μs
Recovery Time t
REC
1 μs
Write 0 Low Time t
LOW0
60 120 μs
Write 1 Low Time t
LOW1
1 15 μs
Read Data Valid t
RDV
15 μs
Reset Time High t
RSTH
480 μs
Reset Time Low t
RSTL
480 960 μs
Presence Detect High t
PDH
15 60 μs
Presence Detect Low t
PDL
60 240 μs
ELECTRICAL CHARACTERISTICS: 1-Wire INTERFACE—OVERDRIVE SPEED
(2.7V ≤ V
DD
≤ 5.5V; T
A
= -20°C to +70°C.)
PARAMETER SYMBOL MIN TYP MAX UNITS
Time Slot t
SLOT
6 16 μs
Recovery Time t
REC
1 μs
Write 0 Low Time t
LOW0
6 16 μs
Write 1 Low Time t
LOW1
1 2 μs
Read Data Valid t
RDV
2 μs
Reset Time High t
RSTH
48 μs
Reset Time Low t
RSTL
48 80 μs
Presence Detect High t
PDH
2 6 μs
Presence Detect Low t
PDL
8 24 μs
Note 1:
All voltages are referenced to V
SS
.
Note 2:
Offset performance requires proper circuit layout design free of surface contaminants.
Note 3:
The DS2740 enters the Sleep mode 2.0s to 2.4s after DQ goes low.
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DS2740BU+

Mfr. #:
Buy DS2740BU+
Manufacturer:
Maxim Integrated
Description:
Battery Management High-Precision Coulomb Counter
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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