MAX17050EVKIT# Maxim Integrated, MAX17050EVKIT# Datasheet - Page 34

• Manufacturer Part Number: MAX17050EVKIT#
• Description: Power Management IC Development Tools MAX17050 Eval Kit
• Manufacturer: Maxim Integrated
• Type: Voltage Protectionr
• Series: MAX17047, MAX17050r

Specifications of MAX17050EVKIT#

• Rohs: yes
• Product: Evaluation Kits
• Tool Is For Evaluation Of: MAX17050
• Input Voltage: 2.5 V to 4.5 V
• Interface Type: I2C
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Part # Aliases: 90-BT07K#D00
• For Use With: MAX17050

AINSH—AIN Pin Shutdown. Set to 1 to enable device shut-
down when the battery is removed. The IC enters shutdown
if the AIN pin remains high (AIN reading > V
for longer than the timeout of the SHDNTIMER register. This
also configures the device to wake up when AIN is pulled low
on cell insertion. AINSH is set to 0 at power-up. Note that if
I2CSH and AINSH are both set to 0, the device wakes up an
edge of any of the SDA, SCL, or ALRT pins.
ALRTp—ALRT Pin Polarity. Regardless if ALRT is being
used as an input or output, if ALRTp = 0, the ALRT pin
is active low; if ALRTp = 1, the ALRT pin is active high.
ALRTp must be set to 0 to enable fast detection of cell
removal. ALRTp is set to 0 at power-up.
V
can only be cleared through software. When V
age alerts are cleared automatically when the threshold
is no longer exceeded. V
T
ture alerts can only be cleared through software. When
T
when the threshold is no longer exceeded. T
at power-up.
Figure 45. Timer Register Format (Output)
Figure 46. SHDNTIMER Register Format (Input/Output)
Maxim Integrated
S
S
S
—Temperature ALRT Sticky. When T
—Voltage ALRT Sticky. When V
= 0, temperature alerts are cleared automatically
MSb
THR
MSb
2
15
2
THR
2
14
1
THR
2
13
MSB—ADDRESS 3Fh
0
MSB—Address 3Eh
CTR
S
2
12
is set to 0 at power-up.
12
CTR
2
11
S
11
= 1, voltage alerts
CTR
S
2
10
THRM
= 1, tempera-
10
S
S
CTR
is set to 1
= 0, volt-
2
- V
9
9
DETR
LSb
CTR
LSb
ModelGauge m3 Fuel Gauge
2
8
)
8
S
only be cleared through software. When S
alerts are cleared automatically when the threshold is no
longer exceeded. S
This register holds timing information for the fuel gauge.
It is available to the user for debug purposes.
shows the TIMER register format.
The SHDNTIMER register sets the timeout period from
when a shutdown event is detected until the device
disables the LDO and enters low-power mode.
shows the SHDNTIMER register format.
CTR12:CTR0—Shutdown Counter. This register counts
the total amount of elapsed time since the shutdown trig-
ger event. This counter value stops and resets to 0 when
the shutdown timeout completes. The counter LSb is 1.4s.
THR2:THR0—Sets the shutdown timeout period from a
minimum of 45s to a maximum of 1.6h. The default POR
value of 7h gives a shutdown delay of 1.6h. The equation
setting the period is:
S
MSb
2
CTR
MSb
—SOC ALRT Sticky. When S
0
2
Shutdown Timeout Period = 175.8ms O 2
7
UNITS: 175.8ms
7
MAX17047/MAX17050
CTR
2
6
6
CTR
2
LSB—ADDRESS 3Fh
5
LSB—Address 3Eh
5
S
CTR
is set to 0 at power-up.
SHDNTIMER Register (3Fh)
2
4
4
CTR
TIMER Register (3Eh)
2
3
3
S
CTR
= 1, SOC alerts can
2
2
2
CTR
2
1
S
1
(8+THR)
= 0, SOC
Figure 45
Figure 46
LSb
CTR
LSb
2
0
0
34