MAX8725EVKIT Maxim Integrated, MAX8725EVKIT Datasheet - Page 4

• Manufacturer Part Number: MAX8725EVKIT
• Description: Battery Management Evaluation Kit for the MAX8725
• Manufacturer: Maxim Integrated
• Series: MAX1909, MAX8725r

Specifications of MAX8725EVKIT

• Battery Type: Li-Ion, Li-Polymer, NiCd, NiMH, Lead Acid, Universal
• Operating Supply Voltage: 8 V to 28 V
• Charge Safety Timers: No
• Operating Supply Current: 2.7 mA
• Product Type: Charge Management
• Temperature Monitoring: No
• Uvlo Start Threshold: 9.18 V
• Uvlo Stop Threshold: 9.42 V

MAX8725 Evaluation Kit
V
CELLS is the number of cells selected by jumper JU1.
Choose 1% resistors with a total resistance less than
250kΩ to minimize error caused by bias current.
For V
uninstalled.
For V
for R3.
The default charging current limit on the MAX8725 EV
kit is 3A. To set it to a value between 0.156A and 5A,
adjust potentiometer R7. Refer to the Setting the
Charging Current Limit section of the MAX1909/
MAX8725 data sheet for more information. Note: 5A
charging current requires a different inductor.
4
Charging Current Limit (Potentiometer R7)
BATT
_______________________________________________________________________________________
BATT
BATT
is the desired battery-regulation voltage and
/ CELLS = 4, use 100kΩ for R4 and leave R3
/ CELLS = 4.4, use 100kΩ for R4 and 49.9kΩ
Potentiometer R12 is connected to CLS, the source cur-
rent-limit input. Adjusting R12 allows the input current
limit to be set between 3.75A and 7.5A. Refer to the
Setting the Input Current Limit section of the
MAX1909/MAX8725 data sheet for more information.
Source Current Limit (Potentiometer R12)