参数资料
型号: MAX8903GETI+
厂商: Maxim Integrated Products
文件页数: 7/30页
文件大小: 0K
描述: IC DC-DC CHARGER LI+ 2A 28TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
系列: Smart Power Selector™
功能: 充电管理
电池化学: 锂离子(Li-Ion)、锂聚合物(Li-Pol)
电源电压: 4.1 V ~ 16 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(4x4)
包装: 管件
MAX8903A–E/G/H/J/N/Y
2A 1-Cell Li+ DC-DC Chargers
for USB and Adapter Power
Typical Operating Characteristics (continued)
(T A = +25°C, unless otherwise noted.)
1.6
MAX8903G SWITCHING
FREQUENCY vs. V DC
100
MAX8903A/B/C/D/E/H/J/N/Y
SYS EFFICIENCY
vs. SYS OUTPUT CURRENT
100
MAX8903G SYS EFFICIENCY
vs. SYS OUTPUT CURRENT
1.4
90
V CEN = 1V
V SYS = 4.4V
90
V CEN = 1
80
80
1.2
70
70
1.0
60
V DC = 11V
60
V DC = 16V
0.8
0.6
0.4
0.2
V BAT = 4V
V BAT = 3V
R ISET = 1.2k I
V CEN = 0V
50
40
30
20
10
V DC = 16V
V DC = 6V
V DC = 4.5V
50
40
30
20
10
V DC = 12V
V DC = 9V
V DC = 6V
0
0
0
4
6
8
10
12
14
16
1
10
100
1000
10000
1
10
100
1000
10,000
1.6
DC VOLTAGE (V)
USB SUPPLY CURRENT
vs. USB VOLTAGE
140
SYS OUTPUT CURRENT (mA)
USB SUPPLY CURRENT
vs. USB VOLTAGE (SUSPEND)
80
SYS OUTPUT CURRENT (mA)
BATTERY LEAKAGE CURRENT
vs. BATTERY VOLTAGE
1.4
1.2
1.0
CHARGER
ENABLED
120
100
70
60
50
80
0.8
40
0.6
60
30
0.4
CHARGER
DISABLED
40
20
0.2
0
20
0
U SB SUSPEN D
10
0
NO DC OR USB INPUT
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
90
USB VOLTAGE (V)
BATTERY LEAKAGE CURRENT
vs. AMBIENT TEMPERATURE
500
USB VOLTAGE (V)
CHARGE CURRENT
vs. BATTERY VOLTAGE—USB MODE
1200
BATTERY VOLTAGE (V)
CHARGE CURRENT
vs. BATTERY VOLTAGE—DC MODE
80
70
60
50
40
30
20
10
0
NO DC OR USB INPUT
450
400
350
300
250
200
150
100
50
0
CHARGE ENABLED
I BAT SET TO 1.5A
MAX8903D
V BAT RISING
V IUSB = V USB
V IUSB = 0V
1000
800
600
400
200
0
CHARGER ENABLED
I BAT SET TO 1A
I DC SET TO 2A
MAX8903A/C/H
V BAT RISING
-40
-15
10
35
60
85
1.5
2.0
2.5
3.0
3.5
4.0
4.5
1.5
2.0
2.5
3.0
3.5
4.0
4.5
Maxim Integrated
TEMPERATURE ( ° C)
BATTERY VOLTAGE (V)
BATTERY VOLTAGE (V)
7
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