欢迎访问ic37.com |
会员登录 免费注册
发布采购

MCP73862-I/ML 参数 Datasheet PDF下载

MCP73862-I/ML图片预览
型号: MCP73862-I/ML
PDF下载: 下载PDF文件 查看货源
内容描述: 先进的单或双电池,完全集成的锂离子/锂聚合物充电管理控制器 [Advanced Single or Dual Cell, Fully Integrated Li-Ion / Li-Polymer Charge Management Controllers]
分类和应用: 电源电路电池电源管理电路控制器
文件页数/大小: 28 页 / 444 K
品牌: MICROCHIP [ MICROCHIP ]
 浏览型号MCP73862-I/ML的Datasheet PDF文件第8页浏览型号MCP73862-I/ML的Datasheet PDF文件第9页浏览型号MCP73862-I/ML的Datasheet PDF文件第10页浏览型号MCP73862-I/ML的Datasheet PDF文件第11页浏览型号MCP73862-I/ML的Datasheet PDF文件第13页浏览型号MCP73862-I/ML的Datasheet PDF文件第14页浏览型号MCP73862-I/ML的Datasheet PDF文件第15页浏览型号MCP73862-I/ML的Datasheet PDF文件第16页  
MCP73861/2/3/4  
3.0  
PIN DESCRIPTION  
The descriptions of the pins are listed in Table 3-1.  
TABLE 3-1:  
Pin No.  
PIN FUNCTION TABLES  
Symbol  
Function  
QFN  
SOIC  
1
2
3
4
V
V
V
V
Voltage Regulation Selection  
Battery Management Input Supply  
Battery Management Input Supply  
Battery Management 0V Reference  
Current Regulation Set  
SET  
DD1  
DD2  
SS1  
3
5
4
6
5
7
PROG  
THREF  
THERM  
TIMER  
6
8
Cell Temperature Sensor Bias  
Cell Temperature Sensor Input  
Timer Set  
7
9
8
10  
11  
12  
13  
14  
15  
16  
1
9
V
Battery Management 0V Reference  
Battery Charge Control Output  
Battery Charge Control Output  
Battery Voltage Sense  
SS3  
10  
11  
12  
13  
14  
15  
16  
V
V
V
BAT1  
BAT2  
BAT3  
V
Battery Management 0V Reference  
Logic Enable  
SS2  
EN  
STAT2  
STAT1  
Fault Status Output  
2
Charge Status Output  
3.1  
Voltage Regulation Selection  
(V  
3.7  
Timer Set  
)
All safety timers are scaled by CTIMER/0.1 µF.  
SET  
MCP73861/3: Connect VSET to VSS for 4.1V regulation  
voltage, connect to VDD for 4.2V regulation voltage.  
MCP73862/4: Connect VSET to VSS for 8.2V regulation  
voltage, connect to VDD for 8.4V regulation voltage.  
3.8  
Battery Charge Control Output  
(V , V  
)
BAT2  
BAT1  
Connect to positive terminal of battery. Drain terminal  
of internal P-channel MOSFET pass transistor. Bypass  
to VSS with a minimum of 4.7 µF to ensure loop stability  
when the battery is disconnected.  
3.2  
Battery Management Input Supply  
(V , V  
)
DD1  
DD2  
A supply voltage of [VREG (typ.) + 0.3V] to 12V is  
recommended. Bypass to VSS with a minimum of  
4.7 µF.  
3.9  
Battery Voltage Sense (V  
)
BAT3  
VBAT3 is a voltage sense input. Connect to positive  
terminal of battery. A precision internal resistor divider  
regulates the final voltage on this pin to VREG  
3.3  
Battery Management 0V Reference  
(V , V , V  
.
)
SS3  
SS1  
SS2  
3.10 Logic Enable (EN)  
Connect to negative terminal of battery and input  
supply.  
EN is an input to force charge termination, initiate  
charge, clear faults or disable automatic recharge.  
3.4  
Current Regulation Set (PROG)  
3.11 Fault Status Output (STAT2)  
Preconditioning, fast and termination currents are  
scaled by placing a resistor from PROG to VSS  
STAT2 is a current-limited, open-drain drive for direct  
connection to a LED for charge status indication.  
Alternatively, a pull-up resistor can be applied for  
interfacing to a host microcontroller.  
.
3.5  
Cell Temperature Sensor Bias  
(THREF)  
THREF is a voltage reference to bias external  
thermistor for continuous cell temperature monitoring  
and prequalification.  
3.12 Charge Status Output (STAT1)  
STAT1 is a current-limited, open-drain drive for direct  
connection to a LED for charge status indication.  
Alternatively, a pull-up resistor can be applied for  
interfacing to a host microcontroller.  
3.6  
Cell Temperature Sensor Input  
(THERM)  
THERM is an input for an external thermistor for contin-  
uous cell-temperature monitoring and prequalification.  
Connect to THREF/3 to disable temperature sensing.  
DS21893C-page 12  
© 2005 Microchip Technology Inc.