参数资料
型号: MAX8971EWP+T
厂商: Maxim Integrated Products
文件页数: 13/39页
文件大小: 0K
描述: IC DCDC CHRGR LI+ 1CELL 20WLP
标准包装: 2,500
功能: 充电管理,过压/欠压保护
电池化学: 锂离子(Li-Ion)、锂聚合物(Li-Pol)
电源电压: 4 V ~ 7.5 V
工作温度: -40°C ~ 85°C
安装类型: *
封装/外壳: *
供应商设备封装: *
包装: *
MAX8971
Industry's Smallest 1.55A
1-Cell Li+ DC-DC Charger
Typical Operating Characteristics
(V DC = 5V, C BYP = 1 F F, C AVL = 4.7 F F, V THM = 2.5V, T A = -40 N C to +85 N C, unless otherwise noted. Typical values are at T A = +25 N C.)
5.10
5.05
SFO OUTPUT VOLTAGE
vs. INPUT VOLTAGE
5.10
5.05
SFO OUTPUT VOLTAGE
vs. LOAD CURRENT
5.00
4.95
I FSO = 50mA
I FSO = 100mA
5.00
4.95
V DC = 7V
4.90
4.90
4.85
4.80
4.75
I FCHG = 500mA
4.85
4.80
4.75
V DC = 5V
5.0
5.5
6.0
6.5
7.0
7.5
0
10 20
30 40 50 60 70 80 90 100
1.8
1.7
1.6
1.5
1.4
INPUT VOLTAGE (V)
V ICHG GAIN vs. CHARGE CURRENT
600
500
400
300
200
LOAD CURRENT (mA)
CHARGE CURRENT
vs. AMBIENT TEMPERATURE
1.3
1.2
100
0
100k I , β = 4250 THERMISTOR
I FCHG = 500mA, SAFETY REGION 1
100
300
500
700
900 1100 1300 1500
0
5
10
15
20
25
30
700
CHARGE CURRENT (mA)
CHARGE CURRENT
vs. AMBIENT TEMPERATURE
FALLING AMBIENT TEMPERATURE (°C)
GSM TEST MODE
MAX8971 toc30
600
500
400
300
200
100
0
100k I , β = 4250 THERMISTOR
I FCHG = 500mA, SAFETY REGION 1
I BATT
V BATT
V DC
40
45
50
55
60
65
2ms/div
RISING AMBIENT TEMPERATURE (°C)
Maxim Integrated
13
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