Acok, Typical operating characteristics – Rainbow Electronics MAX1508 User Manual
Page 4
MAX1508
Linear Li+ Battery Charger with Integrated Pass FET,
Thermal Regulation, and
ACOK
in 3mm x 3mm TDFN
4
_______________________________________________________________________________________
Typical Operating Characteristics
(V
IN
= 5V, V
BATT
= 4.0V, ACOK = EN = CHG = unconnected, R
ISET
= 2.8k
Ω to GND, C
IN
= 1µF, C
BATT
= 1µF, C
VL
= 0.47µF, T
A
=
+25
°C, unless otherwise noted.)
0
0.5
1.0
1.5
2.0
SUPPLY CURRENT
vs. INPUT VOLTAGE
MAX1508 toc01
INPUT VOLTAGE (V)
SUPPLY CURRENT (mA)
0
6
8
2
4
10
12
I
BATT
= 0
0
0.5
1.0
1.5
2.0
DISABLED-MODE SUPPLY
CURRENT vs. INPUT VOLTAGE
MAX1508 toc02
INPUT VOLTAGE (V)
DISABLED-MODE SUPPLY CURRENT (mA)
0
EN = VL
6
8
4
2
10
12
0
250
150
450
350
550
200
100
400
300
500
600
0
2.0
1.0
3.0
4.0
0.5
2.5
1.5
3.5
4.5
CHARGE CURRENT
vs. BATTERY VOLTAGE
MAX1508 toc03
BATTERY VOLTAGE (V)
CHARGE CURRENT (mA)
0
50
250
150
450
350
550
200
100
400
300
500
600
0
6
8
2
4
10
12
1
7
9
3
5
11
13
CHARGE CURRENT
vs. INPUT VOLTAGE
MAX1508 toc04
INPUT VOLTAGE (V)
CHARGE CURRENT (mA)
0
200
100
400
300
500
50
250
150
450
350
550
600
0
0.16
0.08
0.24
0.40
0.04
0.20
0.12
0.28 0.32 0.36
CHARGE CURRENT
vs. INPUT-VOLTAGE HEADROOM
MAX1508 toc05
V
IN
- V
BATT
(V)
CHARGE CURRENT (mA)
4.180
4.186
4.198
4.192
4.204
4.189
4.183
4.201
4.195
4.207
4.210
-40
10
-15
35
60
85
BATTERY REGULATION VOLTAGE
vs. TEMPERATURE
MAX1508 toc06
TEMPERATURE (
°C)
BATTERY REGULATION VOLTAGE (V)
600
560
520
460
420
580
540
480
500
440
-40
10
-15
35
60
85
CHARGE CURRENT
vs. AMBIENT TEMPERATURE
MAX1508 toc07
AMBIENT TEMPERATURE (
°C)
CHARGE CURRENT (mA)
0
200
600
400
800
100
300
700
500
900
1000
-40
10
-15
35
60
85
CHARGE CURRENT
vs. AMBIENT TEMPERATURE
MAX1508 toc09
AMBIENT TEMPERATURE (
°C)
CHARGE CURRENT (mA)
V
BATT
= 4.0V
V
BATT
= 3.6V
R
ISET
= 1.87k
Ω