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参数资料
| 型号： | MAX8845ZETC+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/19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
ELECTRICAL CHARACTERISTICS (continued)
(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
CHG Hysteresis
CHG Detection Delay
CONDITIONS
I BATT rising after top-off is detected,
R MIN = 1.75k ?
I BATT falls below top-off threshold
MIN
4.0
TYP
38
6.2
MAX
10.7
UNITS
mA
ms
Percentage of the fast-
Prequalification Charge Current
charge current, V BATT
T A = 0°C to +85°C
5
10
15
%
= 2.2V
CHG , POK Output Low Threshold
I POK = 5mA , I CHG = 5mA
0.4
V
CHG , POK Output High Leakage Current
POK Threshold
V POK = 5.5V,
V CHG = 5.5V
V IN - V BATT
T A = +25°C
T A = +85°C
V IN rising
V IN falling
0.01
40
30
1
μA
mV
DETBAT, SAFEOUT
DETBAT Logic-Input Low Threshold
DETBAT Logic-Input High Threshold
DETBAT Pullup Resistor
Minimum SAFEOUT Bypass Capacitance
DETBAT to V L = 3V
1.3
470
1
0.4
V
k ?
μF
SAFEOUT Regulated Output
I SAFEOUT = 30mA, V IN = 5V, T A = 0°C to
+85°C (MAX8845Z/MAX8845Y/MAX8845W)
I SAFEOUT = 20mA, V IN = 5V, T A = 0°C to
+85°C (MAX8845X)
4.5
4.75
4.7
4.85
4.9
5.0
V
SAFEOUT Current Limit
EN , ABI, ABO, ABO
100
mA
EN , ABI Internal Pulldown Resistor
100
200
400
k ?
EN Logic-Input Low Threshold
EN Logic-Input High Threshold
ABI Logic-Input Low Threshold
ABI Logic-Input High Threshold
ABO Output Low Threshold (MAX8845Y/
MAX8845X/MAX8845W)
ABO Output High Threshold (MAX8845Y/
MAX8845X/MAX8845W)
ABO Output Low Threshold
(MAX8845Z)
ABO Output High Threshold (MAX8845Z)
4.25V (4.4V for MAX8845W only) ≤ V IN ≤ 7V
4.25V (4.4V for MAX8845W only) ≤ V IN ≤ 7V
V BATT = 4V, V IN = 0
V BATT = 4V, V IN = 0
Open drain, I ABO (SINK) = 1mA
Open drain, 100k ? pullup to BATT
I ABO(SINK) = 1mA
I ABO(SOURCE) = 1mA
1.3
1.3
V BATT -
0.4V
V BATT -
0.4V
0.4
0.4
0.4
0.4
V
V
V
V
V
V
V
V
THERMAL
Die Temperature Regulation Threshold
115
°C
Note 1: Specifications are 100% production tested at T A = +25°C. Limits over the operating temperature range are guaranteed by
design and characterization.
_______________________________________________________________________________________
3
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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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