DS2751+ MAXIM [Maxim Integrated Products], DS2751+ Datasheet - Page 7

• Manufacturer Part Number: DS2751+
• Description: Multichemistry Fuel Garge
• Manufacturer: MAXIM [Maxim Integrated Products]

Figure 2. APPLICATION EXAMPLE
1) R
2) R
POWER MODES
The DS2751 has two power modes: active and sleep. While in active mode, the DS2751 continuously
measures current, voltage, and temperature to provide data to the host system to support current
accumulation. In sleep mode, the DS2751 ceases these activities. The DS2751 enters sleep mode when
PMOD = 1 and either of the following occur:
The DS2751 returns to active mode when the DQ line is pulled from a low-to-high state and the voltage
on V
The DS2751 defaults to active mode when power is first applied.
§ the DQ line is low for longer than t
§ the UVEN bit in the Status Register is set to 1 and the voltage on V
SENS
SENSINT
IN
is above V
threshold V
is present for external sense resistor configurations only.
is present for internal sense resistor configurations only.
PACK+
PACK-
DATA
UV
UV
. The factory default for the DS2751 is UVEN = PMOD = 0.
for t
102
UVD
5.6V
150W
1kW
(cell depletion)
SNS
IS2
R
KS
SLEEP
V
SNS
DQ
IS2
IN
VOLTAGE
R
DS2751
DS2751
SENSE
R
SENSINT
SNS
(2.2s) (pack disconnection).
2.5V
104
7 of 19
(1)
(2)
PIO
V
V
IS1
DD
SS
R
V
IS1
KS
SS
150W
104
5.6V
IN
PROTECTOR IC
(Li+/POLYMER
drops below undervoltage
ONLY)
1-CELL Li+
3-CELL Ni
OR