MAX17050EVKIT# Maxim Integrated, MAX17050EVKIT# Datasheet - Page 31

• 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

Figure 40. Device State Based on Shutdown Exit Condition
Maxim Integrated
These shutdown entry modes are all programmable
according to application. Shutdown events are gated
by the SHDNTIMER register, which allows a long delay
between the shutdown event and the actual shutdown.
By behaving this way, the device takes the best reading
of the relaxation voltage.
Exiting shutdown:
• I
• ALRT Wakeup—Any edge on ALRT line and (ALSH =
• Reset—IC is power cycled.
See the
descriptions of the SHDNTIMER and CONFIG registers.
The state of the device when returning to active mode
differs depending on the triggering event. See
Host software can monitor the POR and Bi status bits to
determine what type of event has occurred.
The Alert Threshold registers allow interrupts to be
generated by detecting a high or low voltage, a high or
low temperature, or a high or low SOC. Interrupts are
generated on the ALRT pin open-drain output driver. An
external pullup is required to generate a logic-high sig-
1 or I2CSH = ALSH = 0).
2
C Wakeup—Any edge on SCL/SDA.
Status and Configuration
(THRM COMPARATOR RECOGNIZES CHANGE
FROM REMOVAL TO INSERTED STATE)
(I
WAKE FROM SHUTDOWN STATE
BATTERY INSERTION DETECTED
2
C EDGE OR ALRT EDGE DETECTED)
(RECOVERY FROM POWER LOSS)
POWER-ON RESET
EVENT
ALRT Function
section for detailed
Figure
FUEL GAUGE RESTARTS FROM POINT MAINTAINED
ModelGauge m3 Fuel Gauge
40.
ALL OTHER RAM VALUES MAINTAINED
MaxMinVoltage REGISTER (1Bh) RESET
ALL RAM RESET TO DEFAULT VALUES
WHEN SHUTDOWN WAS ENTERED
ALL RAM VALUES MAINTAINED
Cycles REGISTER (17h) RESET
FUEL GAUGE RESET
FUEL GAUGE RESET
nal. Note that if the pin is configured to be logic-low when
inactive, the external pullup increases current drain.
The ALRTp bit in the CONFIG register sets the polarity of
the ALRT pin output. Alerts can be triggered by any of the
following conditions:
• Battery removal—(V
• Battery insertion—(V
• Over-/undervoltage—V
• Over-/undertemperature—T
• Over/under SOC—S
To prevent false interrupts, the threshold registers should
be initialized before setting the Aen bit. Alerts generated by
battery insertion or removal can only be reset by clearing
the corresponding bit in the Status register. Alerts gener-
ated by a threshold-level violation can be configured to
be cleared only by software, or cleared automatically
when the threshold level is no longer violated. See the
CONFIG (1Dh) register description for details of the alert
function configuration.
ACTION
tery removal detection enabled (Ber = 1).
tery insertion detection enabled (Bei = 1).
(upper or lower) and alerts enabled (Aen = 1).
(upper or lower) and alerts enabled (Aen = 1).
or lower) and alerts enabled (Aen = 1).
MAX17047/MAX17050
AIN
ALRT
AIN
ALRT
> V
< V
INDICATORS
DNR = 1
Bi = 1
POR = UNCHANGED
DNR = 0
Bi = UNCHANGED
POR = UNCHANGED
DNR = 1
Bi = 0
POR = 1
threshold violation (upper
STATUS
THRM
ALRT
THRM
threshold
threshold violation
- V
- V
DETR
DETF
) and bat-
) and bat-
violation
31