Electrical characteristics (continued) – Rainbow Electronics MAX1507 User Manual
Page 3
MAX1507
Linear Li+Battery Charger with Integrated Pass FET
and Thermal Regulation in 3mm x 3mm Thin DFN
_______________________________________________________________________________________
3
Note 1: Limits are 100% production tested at T
A
= +25
°C. Limits over operating temperature range are guaranteed through correla-
tion using statistical quality control (SQC) methods.
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 5V, V
BATT
= 4.0V, TEMP = EN = CHG = unconnected, R
ISET
= 2.8k
Ω to GND, C
VL
= 0.47µF, BATT bypassed to GND with 1µF,
T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
BATT Removal Detection-Threshold Hysteresis
200
mV
Minimum BATT Bypass Capacitance
1
µF/A
Fast-Charge Current-Loop System Accuracy
V
BATT
= 3.5V
478
520
562
mA
Precharge Current System Accuracy
Percentage of the fast-charge current,
V
BATT
= 2.2V
5
10
15
%
TEMP = VL
130
TEMP = floating
100
Die-Temperature-Regulation Set Point
TEMP = GND
90
°C
V
BATT
Precharge Threshold Voltage
V
BATT
rising
2.3
2.5
2.7
V
Current-Sense Amplifier Gain, I
SET
to I
BATT
in Fast Charge Mode
I
BATT
= 500mA, V
ISET
= 1.4V
0.880
0.958
1.035
mA/A
Regulator Dropout Voltage (V
IN
- V
BATT
)
V
BATT
= 4.1V, I
BATT
= 425mA
130
200
mV
EN Logic Input Low Voltage
4.25V < V
IN
< 6.5V
0.52
V
EN Logic Input High Voltage
4.25V < V
IN
< 6.5V
1.3
V
EN Internal Pulldown Resistor
100
200
400
k
Ω
CHG Output Low Current
V
CHG
= 1V
5
12
20
mA
T
A
= +25°C
1
CHG Output High Leakage Current
V
CHG
= 13V
T
A
= +85°C
0.002
µA
Full Battery Detection Current Threshold
(as a Percentage of the Fast-Charge Current)
I
BATT
falling
5
10
15
%