MAX8900BEWV+T Maxim Integrated Products, MAX8900BEWV+T Datasheet - Page 14

• Manufacturer Part Number: MAX8900BEWV+T
• Description: IC LI-ION/POLY BATT CHRGR 30WLP
• Manufacturer: Maxim Integrated Products

Specifications of MAX8900BEWV+T

• Function: Battery Monitor
• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Voltage - Supply: 3.4 V ~ 8.7 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 30-WLP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1.2A Switch-Mode Li+ Chargers with ±22V Input
Rating and JEITA Battery Temperature Monitoring
14
C3–C6
D3–D6
PIN
D1
D2
E1
E2
E3
E4
E5
E6
NAME
STAT1
STAT3
INBP
THM
GND
SETI
AVL
DNI
CT
IN
Power Input Bypass. Connect all INBP pins together externally. Bypass INBP to PGND with a 0.47FF
ceramic capacitor.
Status Output 1. STAT1 is an open-drain output that has a 30V absolute maximum rating and a typical
internal pulldown resistance of 25I. For the MAX8900A, STAT1 and STAT2 indicate different states
as shown in Table 4. For the MAX8900B/MAX8900C, STAT1, STAT2, and STAT3 indicate different
operating states of the MAX8900_ as shown in Table 3.
Status Output 3. STAT3 is an open-drain output that is a 6V absolute maximum rating and a typical
pulldown resistance of 10I. For the MAX8900A, STAT1 and STAT2 indicate different states as shown
in Table 4. For the MAX8900B/MAX8900C, STAT1, STAT2, and STAT3 indicate different operating
states of the MAX8900_ as shown in Table 3.
Power Input. IN is capable of delivering 1.2A to the battery and/or system. Connect all IN pins
together externally. Bypass IN to PGND with a 0.47FF ceramic capacitor.
Done/Prequalification Program Input. DNI is a dual function pin that sets both the done current
threshold and the prequalification charge rate. Connect a resistor from DNI to GND to set the
threshold between 10mA and 200mA. DNI is pulled to GND during shutdown.
Fast-Charge Current Program Input. Connect a resistor from SETI to GND to set the fast-charge
current from 0.05A to 1.2A. SETI is pulled to GND during shutdown.
Charge Timer Set Input. A capacitor (C
and fast-charge fault timers. Use 0.1FF for 180-minute fast-charge time limit and 30-minute
prequalification/dead-battery time limit. Connect to GND to disable the timer.
Thermistor Input. Connect a negative temperature coefficient (NTC) thermistor from THM to GND.
Connect a resistor equal to the thermistor’s +25NC resistance from THM to AVL. Thermistor adjusts
the charge current and termination voltage as described in the JEITA specification for safe use of
secondary Li+ batteries. See Figure 10. To disable the THM operation, bias V
AVL and GND.
5V Linear Regulator to Power Low-Noise Internal Circuits. Bypass AVL to GND with a 0.1FF ceramic
capacitor. Powering external loads from AVL is not recommended.
Ground. GND is the low-noise ground connection for the internal circuitry. See the PCB Layout
section for more details.
CT
) from CT to GND sets the prequalification/dead-battery
FUNCTION
Pin Description (continued)
THM
midway between