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参数资料
| 型号： | MAX8845ZETC+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/19页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHRGR LI+ 28V 12TQFN-EP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 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： | 0 V ~ 28 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-WFQFN 裸露焊盘 |
| 供应商设备封装： | 12-TQFN 裸露焊盘（3x3） |
| 包装： | 管件 |
28V Linear Li+ Battery Chargers with Battery
Detection and Overvoltage Protected Output
ABSOLUTE MAXIMUM RATINGS
IN to GND ...............................................................-0.3V to +30V
ABI, BATT, EN , POK , ABO, ABO , CHG , DETBAT, SETI, MIN,
SAFEOUT to GND ................................................-0.3V to +6V
IN to BATT Continuous Current .........................................1A RMS
Continuous Power Dissipation (T A = +70°C)
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
12-Thin QFN (derate 14.7mW/°C above +70°C)
(multilayer PCB) ......................................................1176.5mW
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 ? to BATT, EN = unconnected, R SETI = 2.8k ? to GND, V DETBAT = 0, C BATT = 2.2μF, T A = -40°C to
+85°C, unless otherwise noted. Typical values are at T A = +25°C.) (Note 1)
PARAMETER
Input Supply Voltage Range
Input Supply Operating Voltage Range
Overvoltage Lockout Trip Threshold
CONDITIONS
MAX8845W only
V IN rising, 100mV hysteresis (typ)
MAX8845X only
MIN
0
4.25
4.40
7.0
7.5
TYP
7.5
8.0
MAX
28
7.00
7.00
8.0
8.5
UNITS
V
V
V
Constant current charging
I IN - I BATT , I BATT = 0
0.22
0.50
Input Current
Constant current charging
I IN - I BATT, I BATT = 500mA
IC disabled, V EN = 5V
V IN = 4V,
T A = +25°C
1
0.20
0.02
0.50
mA
V BATT = 4.2V (4.35V for
BATT, CHG , POK
MAX8845W only)
T A = +85°C
0.03
Minimum BATT Bypass Capacitance
2.2
μF
V BATT Prequalification Threshold Voltage
V BATT rising, 100mV hysteresis (typ)
2.3
2.5
2.7
V
Battery Regulation Voltage
I BATT = 0
MAX8845W only
T A = -40°C to +85°C
4.175
4.158
4.324
4.306
4.200
4.200
4.350
4.350
4.225
4.242
4.376
4.394
V
Regulator Dropout Voltage (V IN - V BATT )
V BATT = 4.1V, I BATT = 425mA
260
mV
BATT Input Current
V IN = 0 to 4V,
V BATT = 4.2V (4.35V for MAX8845W only)
5
10
μA
IC disabled
3
Current-Sense Amplifier Gain (I BATT to I SETI )
I BATT = 500mA
1016
μA/A
V BATT = 3.5V,
T A = 0°C to +85°C
460
500
540
Fast-Charge Current
R SETI = 2.8k ?
V BATT = 3.5V,
R SETI = 14k ?
T A = -40°C to +85°C
T A = 0°C to +85°C
425
85
500
100
575
115
mA
CHG Top-Off Threshold
I BATT falling, battery is charged
R MIN = 1.75k ?
106
mA
2
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8845ZETC+ | 功能描述:电池管理 28V Linear Li+ Battery Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX8845ZETC+T | 功能描述:电池管理 28V Linear Li+ Battery Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX8845ZEVKIT+ | 功能描述:电源管理IC开发工具 MAX8845Y/Z Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MAX8847ZETE+ | 制造商:Maxim Integrated Products 功能描述:NEGATIVE CHARGE PUMP FOR 6 WLEDS - Rail/Tube |
| MAX8848YETE+ | 制造商:Maxim Integrated Products 功能描述:NEGATIVE CHARGE PUMP FOR 7 WLEDS - Rail/Tube |
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