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| 型号： | MAX8600AETD+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/12页 |
| 文件大小： | 0K |
| 描述： | IC BATTERY CHARGER SGL 14TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 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 ~ 14 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-WFDFN 裸露焊盘 |
| 供应商设备封装： | 14-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
Single-Input 1-Cell Li+ Charger with
OVP Protection and Programmable Charge Timer
Figure 2 External Components List
COMPONENT
C1
C2
C CT
R SETI
R1
R2
R3
T1
D1
FUNCTION
Filter capacitor
Filter capacitor
Timing capacitor
DC charge-current program resistor
Pullup resistor
Pullup resistor
LED current program resistor
Negative TC thermistor
Charge indicator LED
DESCRIPTION
1μF ceramic capacitor
2.2μF ceramic capacitor
0.068μF low TC ceramic capacitor
2k Ω 1% (for 750mA charge)
470k Ω
100k Ω
330 Ω
Phillips NTC thermistor,
P/N 2322-640-63103,
10k Ω 5% at +25°C
LED
Table 1. Fault Temperatures for Different Thermistors
THERMISTOR BETA
Resistance at +25 ° C
Resistance at +50 ° C
Resistance at 0 ° C
Nominal Hot Trip Temperature
Nominal Cold Trip Temperature
3000
10,000 Ω
4587.78 Ω
25,140.55 Ω
+55.14 ° C
-3.24 ° C
3250
10,000 Ω
4299.35 Ω
27,148.09 Ω
+52.60 ° C
-1.26 ° C
3500
10,000 Ω
4029.06 Ω
29,315.94 Ω
+50.46 ° C
+0.46 ° C
3750
10,000 Ω
3775.75 Ω
31,656.90 Ω
+48.63 ° C
+1.97 ° C
Applications Information
Figure 2 shows the typical operating circuit for the
MAX8600A. The following section describes component
changes for different charging current and timer durations.
Charge-Current Selection
The maximum charging current is programmed by an
external resistor (R SETI ) connected from SETI to GND.
Calculate the R SETI value as follows:
R SETI = 1500/I CHARGE(MAX)
where I CHARGE(MAX) is in amps and R SETI is in ohms.
SETI can also be used to monitor the actual charge-
current level. The output voltage at SETI is proportional
to the charging current as follows:
V SETI = (I CHARGE x R SETI )/1000
Note that the prequal charge current (when V BAT < 2.5V)
operation is 10% of the fast-charge current set by R SETI .
Also, the top-off charge-current threshold is set to 6% of
the fast-charge current set by R SETI .
I PREQUAL = 150/R SETI
I TOP-OFF = 90/R SETI
Timer Capacitor Selection
The MAX8600A contains timers for prequal, fast-
charge, and top-off operation. These time periods are
determined by the capacitance from CT to GND. To set
the charge times, calculate C CT as follows:
T FASTCHARGE = 334min x (C CT /0.068μF)
T PREQUAL = 34.8min x (C CT /0.068μF)
T TOPOFF = 69.6min x (C CT /0.068μF)
Note that when THM halts charging, the timers stop and
hold their value.
8
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8600ETD+ | 制造商:Maxim Integrated Products 功能描述:PROT LI-ION/LI-POL 1A 4.2V 14TDFN EP - Rail/Tube |
| MAX8600ETD+T | 功能描述:电池管理 Single-Input 1-Cell Li+ Charger With Ovp 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 |
| MAX8600ETD-T | 制造商:Maxim Integrated Products 功能描述:SINGLE-INPUT, 1-CELL LI+ CHARGER W. OVP PROTE - Tape and Reel |
| MAX8601ETD | 制造商:Maxim Integrated Products 功能描述:USB/AC-ADAPTER/DUAL-INPUT 1-CELL LI - Rail/Tube |
| MAX8601ETD/V+T | 功能描述:电池管理 Dual-Input 1-Cell Li+ Charger With Ovp 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 |
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