参数资料
型号: ADM00313
厂商: Microchip Technology
文件页数: 15/30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:
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:
MCP73830/L
5.9
Thermal Shutdown
The MCP73830/L suspends charging if the die tem-
perature exceeds +150°C. Charging will resume when
the die temperature has cooled by approximately
10°C. The thermal shutdown is a secondary safety
feature in the event that there is a failure within the
thermal regulation circuitry.
5.10
Status Indicator
The charge status output of the MCP73830/L is open-
drain, and, as such, has two different states: Low (L),
and High-Impedance (Hi-Z). The charge status out-
puts can be used to illuminate the LEDs. Optionally,
the charge status output can be used as an interface
to a host microcontroller. The faulty indication of a pre-
conditioning timer also indicates defective batteries,
when it fails to pass preconditioning threshold during
the given time.
Table 5-1 summarizes the state of the status outputs
during a charge cycle.
TABLE 5-1:
STATUS OUTPUTS
Charge Cycle State
Shutdown
No Battery Present
Preconditioning
Constant Current Fast Charge
Constant Voltage
Charge Complete - Standby
Timer Fault
Preconditioning Timer Fault
? 2011 Microchip Technology Inc.
STAT
Hi-Z
Hi-Z
L
L
L
Hi-Z
Hi-Z
Flashing (2 Hz)
DS25049B-page 15
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