MAX1507ETA+T Maxim Integrated Products, MAX1507ETA+T Datasheet - Page 5

• Manufacturer Part Number: MAX1507ETA+T
• Description: IC BATT CHARGER LI-ION 8-TDFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX1507ETA+T

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 4.25 V ~ 13 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-WDFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(V
+25°C, unless otherwise noted.)
Linear Li+ Battery Charger with Integrated Pass FET
IN
PIN
—
= 5V, V
1
2
3
4
5
6
7
8
and Thermal Regulation in 3mm x 3mm Thin DFN
1000
900
800
700
600
500
400
300
200
100
BATT
vs. AMBIENT TEMPERATURE (TEMP = OPEN)
0
-40
NAME
TEMP
BATT
GND
CHG
ISET
PAD
EN
VL
IN
R
ISET
= 4.0V, TEMP = EN = CHG = unconnected, R
= 1.87kΩ
-15
AMBIENT TEMPERATURE (°C)
_______________________________________________________________________________________
CHARGE CURRENT
Internally Generated Logic Supply for Chip. Bypass VL to GND with a 0.47µF capacitor.
Input Supply Voltage. Bypass IN to GND with a 1µF capacitor to improve line noise and transient rejection.
Ground. Connect GND and exposed pad to a large copper trace for maximum power dissipation.
Charge-Current Program and Fast-Charge Current Monitor. Output current from ISET is 0.958mA per amp of
battery charging current. The charging current is set by connecting a resistor from ISET to GND. Fast-charge
current = 1461V / R
Logic-Level Enable Input. Drive EN high to disable charger. Pull EN low or float for normal operation. EN has
an internal 200kΩ pulldown resistor.
Three-Level Input Pin. Connect TEMP to VL, GND, or leave floating. Sets maximum die temperature for
thermal regulation loop. Connection to GND = +90°C, floating = +100°C, VL = +130°C. TEMP is Hi-Z during
shutdown.
Li+ Battery Connection. Bypass BATT to GND with a capacitor of at least 1µF per ampere of charge current.
Charging Indicator, Open-Drain Output. CHG goes low (and can turn on an LED) when charging begins.
CHG is high impedance when the battery current drops below 10% of the fast-charging current, or when EN
is high. Connect a pullup resistor to the µP’s I/O voltage when interfacing with a µP logic input.
Exposed Pad. Connect exposed pad to a large copper trace for maximum power dissipation. The pad is
internally connected to GND.
10
V
BATT
35
= 3.6V
V
BATT
60
= 4.0V
ISET
85
Ω.
Typical Operating Characteristics (continued)
ISET
= 2.8kΩ to GND, C
FUNCTION
1000
900
800
700
600
500
400
300
200
100
IN
0
vs. AMBIENT TEMPERATURE (TEMP = GND)
-40
= 1µF, C
R
ISET
= 1.87kΩ
-15
AMBIENT TEMPERATURE (°C)
BATT
CHARGE CURRENT
10
= 1µF, C
V
BATT
Pin Description
= 3.6V
35
VL
V
= 0.47µF, T
BATT
60
= 4.0V
85
A
=
5