参数资料
型号: MAX8730ETI+T
厂商: Maxim Integrated Products
文件页数: 12/29页
文件大小: 0K
描述: IC CHARGER BATTERY 28-TQFN
标准包装: 2,500
功能: 充电管理
电池化学: 多化学
电源电压: 8 V ~ 28 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(5x5)
包装: 带卷 (TR)
Low-Cost Battery Charger
Typical Operating Characteristics (continued)
(Circuit of Figure 1, adapter = 19.5V, V BATT = 12V, V ICTL = 2.4V, MODE > 1.8V, REFON = INPON = LDO, V RELTH = V REF /2, T A =
+25°C, unless otherwise noted.)
PEAK-TO-PEAK INDUCTOR CURRENT
2.5
2.3
2.1
vs. BATTERY VOLTAGE
100
EFFICIENCY vs. CHARGE CURRENT
1.9
1.7
1.5
90
80
3 CELLS
4 CELLS
1.3
1.1
0.9
0.7
70
0.5
0
3
6 9 12
15
18
60
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
3.0
BATTERY VOLTAGE (V)
ADAPTER QUIESCENT CURRENT
vs. ADAPTER VOLTAGE
500
CHARGE CURRENT (A)
BATTERY LEAKAGE CURRENT
vs. BATTERY VOLTAGE
2.5
2.0
BATTERY ABSENT
REFON = 1
INPON = 1
400
300
REFON = INPON = 1
REFON = 0
INPON = 1
1.5
200
1.0
REFON = 1
0.5
REFON = 0
100
REFON = INPON = 0
INPON = 0
INPON = 0
0
0
0
5
10
15 20
25
0
3
6 9 12
15
18
3.5
ADAPTER VOLTAGE (V)
CHARGE CURRENT vs. TIME
0
BATTERY VOLTAGE (V)
LDO LOAD REGULATION
3.0
INITIAL CONDITION: 4 CELLS
10V BATTERY
-0.1
CHARGER DISABLED
2.5
2.0
1.5
FULL CHARGE = 16.8V
-0.2
-0.3
-0.4
-0.5
-0.6
1.0
-0.7
0.5
0
-0.8
-0.9
0
0.5
1.0
1.5 2.0
2.5
3.0
0
10
20
30
40
50
TIME (h)
I LDO (mA)
12
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