参数资料
型号: MAX8934EETI+T
厂商: Maxim Integrated Products
文件页数: 8/32页
文件大小: 0K
描述: IC LI+/LIPOLY BATT CHRGER 28WQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
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 ~ 6.6 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: 带卷 (TR)
MAX8934A–MAX8934E
Dual-Input Linear Chargers, Smart Power Selector
with Advanced Battery Temperature Monitoring
Typical Operating Characteristics
(MAX8934A, T A = +25 N C, circuit of Figure 2, V DC = 6V, V BATT = 3.6V, thermistor Beta = 3964, unless otherwise noted. Negative bat-
tery current indicates charging.)
1200
USB OPERATING SUPPLY CURRENT
vs. USB VOLTAGE (CHARGER ENABLED)
900
USB OPERATING SUPPLY CURRENT
vs. USB VOLTAGE (CHARGER DISABLED)
250
USB SUSPEND CURRENT
vs. USB VOLTAGE
1000
800
600
V BATT = 4.2V,
V USUS = 0V
CHARGER IN
DONE MODE
I SYS = 0A
V USB RISING
V USB FALLING
800
700
600
500
400
V BATT = 4.2V,
V USUS = 0V
CEN = 1
I SYS = 0A
PEN1 = X, PEN2 = 1
V USB RISING
V USB FALLING
200
150
100
V BATT = 4.2V,
USUS = 1
400
300
200
0
ENTERING OVLO
200
100
0
ENTERING OVLO
50
0
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
14
USB VOLTAGE (V)
BATTERY INPUT CURRENT
vs. BATTERY VOLTAGE
(USB DISCONNECTED)
5.0
USB VOLTAGE (V)
BATTERY INPUT CURRENT
vs. TEMPERATURE
100
USB VOLTAGE (V)
CHARGE CURRENT vs.
BATTERY VOLTAGE (100mA USB)
12
10
8
THMEN = 1
4.9
4.8
4.7
4.6
4.5
V BATT = 4V, THMEN = 0, I LDO = 0
USB AND DC UNCONNECTED
90
80
70
60
50
V USB = 5V
PEN1 = X, PEN2 = 0
V BATT RISING
V BATT FALLING
6
4
4.4
4.3
40
30
2
THMEN = 0
4.2
4.1
20
10
0
0
1
2
3
4
5
4.0
-40
-15
10
35
60
85
0
0
1
2
3
4
5
500
BATTERY VOLTAGE (V)
CHARGE CURRENT vs.
BATTERY VOLTAGE (500mA USB)
TEMPERATURE (°C)
1200
BATTERY VOLTAGE (V)
CHARGE CURRENT vs.
BATTERY VOLTAGE (1A DC)
450
400
350
300
250
V USB = 5V
PEN1 = X, PEN2 = 1
V BATT RISING
V BATT FALLING
1000
800
600
V DC = 5V
PEN1 = 1, PEN2 = X
V BATT RISING
V BATT FALLING
200
150
100
50
0
400
200
0
0
1
2
3
4
5
0
1
2
3
4
5
8
BATTERY VOLTAGE (V)
BATTERY VOLTAGE (V)
Maxim Integrated
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