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| 型号： | ADM00313 |
| 厂商： | Microchip Technology |
| 文件页数： | 9/30页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL LI-ION CHRG MCP73830L |
| 设计资源： | MCP73830L Eval Bd Gerber |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电池充电器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | MCP73830L |
| 主要属性： | 1 芯锂离子电池 |
| 次要属性： | LED 状态指示器 |
| 已供物品： | 板 |
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MCP73830/L
3.0
PIN DESCRIPTION
TABLE 3-1:
MCP73830/L
PIN FUNCTION TABLES
TDFN
Symbol
I/O
Function
1
2
3
V SS
STAT
V BAT
—
O
I/O
Battery management 0V reference.
Battery charge status output.
Charge control output. Regulates the charge current and battery voltage.
The pin is disconnected during Shutdown mode.
4
5
V DD
CE
I
I
Input power supply.
Charge Enable pin. Pull the pin high to disable the device. It is internally
pulled down. Leave the pin float if not used.
6
7
PROG
EP
I/O
—
Battery charge current regulation program.
Exposed pad.
3.1
Battery Management Input Supply
3.5
Current Regulation Set (PROG)
(V DD )
A supply voltage of [V REG (Typical) + 0.3V] to 6.0V is
recommended. Bypass to V SS with a minimum of 1 μF.
The fast charge current is set by placing a resistor from
PROG to V SS during Constant Current (CC) mode.
Charge” for details.
3.2
Battery Charge Control Output
(V BAT )
3.6
Charge Enable (CE)
Connect to the positive terminal of the battery. Bypass
to V SS with a minimum of 1 μF to ensure loop stability
when the battery is disconnected.
The MCP73830/L is always enabled with an internal
pull-down resistor. Pulling the CE pin high will enter
Standby mode.
3.3
Battery Management 0V Reference
3.7
Exposed Pad (EP)
(V SS )
Connect to the negative terminal of the battery and
input supply.
The Exposed Thermal Pad (EP) should be connected
to the exposed copper area on the Printed Circuit
Board (PCB) for thermal enhancement purposes.
Additional vias on the copper area under the
3.4
Status Output (STAT)
MCP73830/L device can improve the performance of
heat dissipation and simplify the assembly process.
STAT is an open-drain logic output for connection to an
LED for charge status indication in stand-alone
applications. Alternatively, a pull-up resistor can be
applied for interfacing to a host microcontroller. Refer to
charge cycle.
? 2011 Microchip Technology Inc.
DS25049B-page 9
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