LTC4150IMS#PBF Linear Technology, LTC4150IMS#PBF Datasheet - Page 5

• Manufacturer Part Number: LTC4150IMS#PBF
• Description: IC COUNTER/GAUGE GAS/BATT 10MSOP
• Manufacturer: Linear Technology

Specifications of LTC4150IMS#PBF

• Function: Fuel, Gas Gauge/Monitor
• Battery Type: Li-Ion, NiCd, NiMH
• Voltage - Supply: 2.7 V ~ 8.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIN FUNCTIONS
SENSE
verting current sense input. Connect SENSE
and charger side of the sense resistor. Full-scale current
sense input is 50mV. SENSE
V
SENSE
current sense input. Connect SENSE
tery terminal side of the sense resistor. Full-scale current
sense input is 50mV. SENSE
for proper operation.
C
connected between C
noise and fast battery current variations. A 4.7μF value
is recommended. If fi ltering is not desired, leave C
C
C
connected between C
noise and fast battery current variations. A 4.7μF value
is recommended. If fi ltering is not desired, leave C
C
SHDN (Pin 5): Shutdown Digital Input. When asserted low,
SHDN forces the LTC4150 into its low current consumption
power-down mode and resets the part. In applications
with logic supply V
used between SHDN and the logic which drives it. See the
Applications Information section.
DD
F
F
F
F
–
–
+
–
unconnected.
unconnected.
(Pin 3): Filter Capacitor Positive Input. A capacitor
(Pin 4): Filter Capacitor Negative Input. A capacitor
for proper operation.
+
–
(Pin 2): Negative Sense Input. This is the inverting
(Pin 1): Positive Sense Input. This is the nonin-
CC
> V
F
F
+
+
DD
and C
and C
–
, a resistive divider must be
must be within 60mV of V
+
must be within 60mV of
F
F
–
–
fi lters and averages
fi lters and averages
–
to the positive bat-
+
to the load
F
F
+
+
and
and
DD
POL (Pin 6): Battery Current Polarity Open-Drain Output.
POL indicates the most recent battery current polarity when
INT is high. A low state indicates the current is fl owing out
of the battery while high impedance means the current
is going into the battery. POL latches its state when INT
is asserted low. POL is an open-drain output and can be
pulled up to any logic supply up to 9V. In shutdown, POL
is high impedance.
GND (Pin 7): Ground. Connect directly to the negative
battery terminal.
V
and charger side of the sense resistor. SENSE
nects to V
V
CLR (Pin 9): Clear Interrupt Digital Input. When asserted
low for more than 20μs, CLR resets INT high. Charge
counting is unaffected. INT may be directly connected to
CLR. In this case the LTC4150 will capture each assertion
of INT and wait at least 1μs before resetting it. This ensures
that INT pulses low for at least 1μs but gives automatic
INT reset. In applications with a logic supply V
a resistive divider must be used between INT and CLR.
See the Applications Information section.
INT (Pin 10): Charge Count Interrupt Open-Drain Output.
INT latches low every 1/(V
reset by a low pulse at CLR. INT is an open-drain output
and can be pulled up to any logic supply of up to 9V. In
shutdown INT is high impedance.
DD
DD
(Pin 8): Positive Power Supply. Connect to the load
with 4.7μF capacitor.
DD
. V
DD
operating range is 2.7V to 8.5V. Bypass
SENSE
• G
VF
LTC4150
) seconds and is
+
CC
also con-
> V
4150fc
5
DD
,