MAX8808XETA+T Maxim Integrated Products, MAX8808XETA+T Datasheet - Page 5

• Manufacturer Part Number: MAX8808XETA+T
• Description: IC CHARGER LI+ SGLL CCCV 8TDFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8808XETA+T

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 0 V ~ 15 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1A Linear Li+ Battery Chargers with Integrated Pass
FET and Thermal Regulation in 2mm x 2mm TDFN
PIN
—
1
2
3
4
5
6
7
8
(MAX8808Y)
(MAX8808X/
MAX8808Z)
_______________________________________________________________________________________
NAME
ACOK
BATT
GND
CHG
ISET
EN
EN
VL
EP
IN
Input Supply Voltage. Bypass IN to GND with a 1µF or larger ceramic capacitor to improve line
noise and input transient rejection.
Internally Generated Logic Supply for IC. Bypass VL to GND with a 0.47µF ceramic capacitor.
Ground. Connect GND and exposed pad to a large copper ground plane for maximum power
dissipation. Connect GND to the exposed paddle directly under the IC.
Charge-Current Program and Fast-Charge Current Monitor. Output current from ISET is 1.08mA
per amp of battery charging current. Set the charging current by connecting a resistor from ISET
to GND. Fast-charge current = 1302V / R
Charging Indicator. CHG is an open-drain output that goes low (LED capable) when charging
begins. CHG is high impedance when the battery current drops below 10% of the fast-charging
current, or when the IC is disabled. Connect a pullup resistor to the µP’s I/O voltage when
interfacing with a µP logic input.
Logic-Level Enable Input. Drive EN high to disable charger. Pull EN low or leave unconnected for
normal operation. EN has an internal 200kΩ pulldown resistor.
Logic-Level Enable Input. Drive EN low to disable charger. Pull EN high for normal operation. EN
has no internal pullup or pulldown resistor.
Input Status Indicator. ACOK is an open-drain output that asserts low when V
V
during shutdown.
Li+ Battery Connection. Bypass BATT to GND with a ceramic capacitor of at least 2.2µF per
ampere of charge current.
Exposed Paddle. Connect the exposed paddle to a large ground plane for maximum power
dissipation. Connect GND to the exposed paddle directly under the IC.
BATT
) ≥ 40mV. ACOK requires an external 100kΩ pullup resistor. ACOK is high impedance
ISET
FUNCTION
Ω.
Pin Description
IN
< +7V and (V
IN
–
5