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参数资料
| 型号： | MAX8814ETA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/11页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER LI+ 28V 8TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 0 V ~ 28 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-TDFN-EP（2x2） |
| 包装： | 标准包装 |
| 其它名称： | MAX8814ETA+TDKR |
28V Linear Li+ Battery Charger with
Smart Autoboot Assistant
ELECTRICAL CHARACTERISTICS (continued)
(V IN = 5V, V BATT = 4V, R POK = 1M Ω to BATT, EN = 0V, R ISET = 2.8k Ω to GND, C BATT = 2.2μF, T A = -40°C to +85°C, unless other-
wise noted. Typical values are at T A = +25°C.) (Note 1)
PARAMETER
Regulator Dropout Voltage
(V IN - V BATT )
CONDITIONS
V BATT = 4.1V, I BATT = 425mA
MIN
TYP
240
MAX
500
UNITS
mV
EN Logic-Input Low Voltage
EN Logic-Input High Voltage
4.25V < V IN < 6.5V
4.25V < V IN < 6.5V
1.3
0.4
V
V
EN and ABI Internal Pulldown
Resistance
100
200
400
k Ω
ABI Logic-Input Low Voltage
ABI Logic-Input High Voltage
ABO Output Low Voltage
ABO Output High Voltage
POK Output Low Voltage
V IN = 0V
V IN = 0V
I ABO (SINK) = 1mA
I ABO (SOURCE) = 1mA
I POK = 5mA
1.3
V BATT -
0.4V
0.4
0.4
0.4
V
V
V
V
V
POK Output High Leakage
Current
V POK = 5.5V
T A = +25°C
T A = +85°C
0.001
0.002
1
μA
Note 1: Specifications are 100% production tested at T A = +25°C. Limits over the operating temperature range are guaranteed by
design and characterization.
Typical Operating Characteristics
(V IN = 5V, V BATT = 4V, R POK = 1M Ω to BATT, EN = 0V, R ISET = 2.8k Ω to GND, C BATT = 2.2μF, T A = -40°C to +85°C, unless other-
wise noted. Typical values are at T A = +25°C.)
SUPPLY CURRENT
vs. VOLTAGE
DISABLED MODE SUPPLY CURRENT
vs. INPUT VOLTAGE
CHARGE CURRENT
vs. BATTERY VOLTAGE
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
EN = 0V
800
700
600
500
400
300
200
100
0
V EN = 5V
1000
900
800
700
600
500
400
300
200
100
0
0
4
8
12
16
20
24
28
0
5
10
15
20
25
30
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
BATTERY VOLTAGE (V)
_______________________________________________________________________________________
3
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