MAX17041G+T Maxim Integrated Products, MAX17041G+T Datasheet - Page 9

• Manufacturer Part Number: MAX17041G+T
• Description: IC 2-WIRE FG W/MODEL GAUGE
• Manufacturer: Maxim Integrated Products
• Series: ModelGauge™r

Specifications of MAX17041G+T

• Function: Fuel, Gas Gauge/Monitor
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 2.5 V ~ 4.5 V
• Operating Temperature: -20°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 90-2772G+TRL

Figure 5. MAX17040 Application Example with External Clock
Figure 6. MAX17041 Application Example with Hardware Reset
The 2-wire bus system supports operation as a slave-
only device in a single or multislave, and single or multi-
master system. Slave devices can share the bus by
uniquely setting the 7-bit slave address. The 2-wire
interface consists of a serial data line (SDA) and serial
clock line (SCL). SDA and SCL provide bidirectional
communication between the MAX17040/MAX17041
slave device and a master device at speeds up to
400kHz. The MAX17040/MAX17041s’ SDA pin operates
_______________________________________________________________________________________
PROTECTION IC
PROTECTION IC
(Li+/POLYMER)
(Li+/POLYMER)
Compact, Low-Cost 1S/2S Fuel Gauges
BATTERY
BATTERY
2-Wire Bus System
PACK+
PACK+
PACK-
PACK-
1kΩ
1µF
1kΩ
1µF
GND
GND
CELL
CTG
CELL
SEO
CTG
bidirectionally; that is, when the MAX17040/MAX17041
receive data, SDA operates as an input, and when the
MAX17040/MAX17041 return data, SDA operates as an
open-drain output, with the host system providing a
resistive pullup. The MAX17040/MAX17041 always
operate as a slave device, receiving and transmitting
data under the control of a master device. The master
initiates all transactions on the bus and generates the
SCL signal, as well as the START and STOP bits, which
begin and end each transaction.
MAX17040
MAX17041
EP
EP
SDA
SDA
SEO
SCL
SCL
V
V
EO
EO
DD
DD
SYSTEM
SYSTEM
150Ω
10nF
I
MASTER
I
MASTER
32kHz
OSCILLATOR
OUTPUT
3.3V OUTPUT
WATCHDOG
2
2
C BUS
C BUS
SYSTEM
SYSTEM
SYSTEM
PMIC
µP
µP
SYSTEM V
SYSTEM GND
SYSTEM V
SYSTEM GND
DD
DD
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