MAX17050EVKIT# Maxim Integrated, MAX17050EVKIT# Datasheet - Page 13

• 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

Proper circuit layout (see
measurement accuracy when using the MAX17047/
MAX17050 ModelGauge m3 ICs. The recommended
layout guidelines are as follows:
1) Mount R
2) V
Figure 7. Operating Circuits that Share Pack Thermistor with System Charger
Maxim Integrated
device shares both voltage and current measure-
ments on the CSP pin. Therefore, it is important to limit
the amount of trace resistance between the current-
sensing resistor and PACK-.
PACK+. The device shares the V
voltage measurement and IC power. Limiting the
voltage loss through this trace is important to voltage-
measurement accuracy. PCB resistance that cannot
be removed can be compensated for during charac-
terization of the application cell.
BATT
CHARGER WITH
V
AVAILABLE
TT
trace should make a Kelvin connection to
SNS
+ THRM
THERMISTOR
CELL PACK
INSIDE
as close as possible to PACK-. The
P
CHARGER REQUIREMENTS
Recommended Layout
VOLTAGE BASED
ON EXISTING
V
BIAS
Figure
PK-
8) is essential for
V
THRM
AIN
MAX17047 + CHARGER
BATT
TT
WITH EXTERNAL BIAS
P
MAX17047
CSP
pin for both
V
BATT
ModelGauge m3 Fuel Gauge
V
SYSTEM
3) CSN and CSP traces should make Kelvin connections
4) V
5) REG capacitor trace loop area should be minimized.
6) There are no limitations on any other IC connection.
CHARGER WITH
to R
through the CSN and CSP pins. Any shared high-
current paths on these traces will affect current-
measurement gain accuracy. PCB resistance that
cannot be removed can be compensated for during
characterization of the application cell.
The device shares the V
surement and IC power. Limiting noise at the V
pin is important to current-measurement accuracy.
The helps filter any noise from the internal regulated
supply.
Connections to THRM, ALRT, SDA, SCL, V
AIN, as well as any external components mounted to
these pins, have no special layout requirements.
BATT
THERMISTOR
INTERNAL
OFF DURING
CELL PACK
DISCHARGE
ON DURING
MAX17047/MAX17050
BIAS
V
INSIDE
INTERNAL
CHARGE
SNS
2.8V < V
capacitor trace loop area should be minimized.
. The device measures current differentially
BIAS
< V
V
BIAS
INTERNAL
PK-
+ 0.6V
THRM
AIN
V
MAX17047 + CHARGER
TT
WITH INTERNAL BIAS
BATT
P
MAX17047
CSP
pin for both voltage mea-
V
BATT
V
SYSTEM
TT
, and
BATT
13