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参数资料
| 型号： | MAX8814ETA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/11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
ABSOLUTE MAXIMUM RATINGS
IN to GND ...............................................................-0.3V to +30V
ABI, BATT, EN , POK to GND....................................-0.3V to +6V
ABO to GND............................................-0.3V to (V BATT + 0.3V)
ISET to GND .............................................................-0.3V to +4V
IN to BATT Continuous Current .........................................1A RMS
BATT Short-Circuit Duration .......................................Continuous
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Continuous Power Dissipation (T A = +70°C)
8-Pin TDFN (derate 11.9mW/°C above +70°C)
(multilayer PCB) ........................................................953.5mW
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL 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.) (Note 1)
PARAMETER
Input Voltage Range
Input Operating Voltage Range
Power-OK Threshold
Overvoltage-Lockout Trip
Threshold
CONDITIONS
V IN rising
V IN - V BATT ,
10mV hysteresis (typ)
V IN falling
V IN rising, 100mV hysteresis (typ)
MIN
0
4.25
6.8
TYP
40
30
7
MAX
28
6.80
7.5
UNITS
V
V
mV
V
Constant-current charging mode (I BATT = 0A)
0.8
1.35
IN Input Current
IC disabled (V EN = 5V)
V IN = 4V,
T A = +25°C
0.23
0.021
0.50
0.065
mA
V BATT = 4.2V
T A = +85°C
0.021
BATT Input Current
V IN = 0 to 4V,
V BATT = 4.2V
1
10
μA
IC disabled
3
Battery Regulation Voltage
I BATT = 0A
T A = 0°C to +85°C
T A = -40°C to +85°C
4.179
4.158
4.200
4.200
4.221
4.242
V
Minimum BATT Bypass
Capacitance
2.2
μF
Fast-Charge Current
V BATT = 3.5V
V BATT = 3.5V,
R ISET = 14k Ω
T A = 0°C to +85°C
T A = -40°C to +85°C
T A = 0°C to +85°C
T A = -40°C to +85°C
524
485
89
80
570
570
107
107
616
656
125
134
mA
Prequalification Charge Current
Percentage of the fast-charge current, V BATT = 2.2V,
T A = 0°C to +85°C
4
10
15
%
Die Temperature Regulation
Threshold
+115
°C
V BATT Prequalification Threshold
Voltage
Current-Sense Amplifier Gain
(I BATT to I ISET )
V BATT rising, 100mV hysteresis (typ)
I BATT = 570mA
2.3
2.5
877.2
2.7
V
μA/A
2
_______________________________________________________________________________________
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