MAX745C/D Просмотр технического описания (PDF) - Maxim Integrated
Номер в каталоге
Компоненты Описание
производитель
MAX745C/D Datasheet PDF : 8 Pages
| |||
Switch-Mode Lithium-Ion
Battery Charger
__________________________________________Typical Operating Characteristics
(TA = +25°C, VDCIN = 18V, VBATT = 4.2V, CELL0 = CELL1 = GND, CVL = 4.7µF, CREF = 0.1µF. Circuit of Figure 1, unless
otherwise noted.)
BATTERY VOLTAGE
CURRENT-SENSE VOLTAGE
vs. CHARGING CURRENT
vs. SETI VOLTAGE
4.5
200
4.0
180 R1 = 0.2Ω
3.5
160
3.0
2.5
2.0
1.5
1.0
R1 = 0.2Ω
0.5
R16 = SHORT
R12 = OPEN CIRCUIT
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
CHARGING CURRENT (A)
140
120
100
80
60
40
20
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SETI VOLTAGE (V)
4.205
4.204
4.203
4.202
4.201
4.200
4.199
4.198
4.197
4.196
4.195
0
REFERENCE VOLTAGE
vs. TEMPERATURE
25
50
75
100
TEMPERATURE (°C)
VOLTAGE LIMIT
vs. VADJ VOLTAGE
4.45
4.40
4.35
4.30
4.25
4.20
4.15
4.10
4.05
4.00
3.95
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
VADJ VOLTAGE (V)
5.50
5.45
5.40
5.35
5.30
5.25
5.20
5.15
5.10
5.05
0
0
VL LOAD REGULATION
5
10
15
20
25
VL OUTPUT CURRENT (mA)
4.25
4.24
4.23
4.22
4.21
4.20
4.19
4.18
4.17
4.16
4.15
0
REFERENCE LOAD REGULATION
500 1000 1500 2000 2500 3000
REFERENCE CURRENT (µA)
4 _______________________________________________________________________________________
Share Link: 