MAX1873S Просмотр технического описания (PDF) - Maxim Integrated
Номер в каталоге
Компоненты Описание
производитель
MAX1873S Datasheet PDF : 14 Pages
| |||
Simple Current-Limited Switch-Mode
Li+ Charger Controller
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VDCIN = VCSSP = VCSSN = 18V, VICHG/EN = VREF, VVADJ = VREF/2. MAX1873R: VBATT = VCSB = 8.4V;
MAX1873S: VBATT = VCSB = 12.6V; MAX1873T: VBATT = VCSB = 16.8V; TA = +25°C, unless otherwise noted).
MAX1873S (3-CELL)
EFFICIENCY vs. INPUT VOLTAGE
100
MAX1873T (4-CELL)
EFFICIENCY vs. INPUT VOLTAGE
100
90
90
80
80
70
70
60 VBATT = 10.5V
ICHG = 3A
50
12
16
20
24
28
INPUT VOLTAGE (V)
60 VBATT = 14V
ICHG + 3A
50
16 18 20 22 24 26 28
INPUT VOLTAGE (V)
4-CELL BATTERY VOLTAGE AND
CHARGING CURRENT vs. TIME
18
3.5
16
3.0
14
BATTERY VOLTAGE
2.5
12
2.0
10
1.5
CHARGING CURRENT
8
1.0
6
0.5
4
0
0 25 50 75 100 125 150
TIME (MINUTES)
CHARGING CURRENT
vs. SYSTEM LOAD CURRENT
3.0
2.5
2.0
1.5
1.0
0.5
0
0 0.5 1.0 1.5 2.0 2.5 3.0
SYSTEM LOAD CURRENT (A)
_______________________________________________________________________________________ 7
Share Link: 