M61040FP Просмотр технического описания (PDF) - MITSUBISHI ELECTRIC

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производитель

M61040FP

Smart battery protection and monitoring IC

MITSUBISHI ELECTRIC  

Smart battery protection and monitoring IC

M61040FP

6) Power save function

M61040FP contains power save function to control several supply current.

The function and control method are shown as table 2.

The function of battery voltage detection circuit, Charge/Discharge detection circuit, Over current

detection circuit can be stopped as the need arises.

Control method

Battery voltage

detection circuit

Table 2

Charge/Discharge

detection circuit

Over current

detection circuit

Software control

(through Serial I/F)

Ο

Ο

Ο

Each function can be ON/OFF separately.

Enter Power Down Mode

Microcomputer issues shot-down command to M61040 after microcomputer detects that battery

voltage is too low. After this command, the DFOUT pin is set to `high` and the Vin_12pin is pulled

down by internal resistor to be set `low` and series regulator are turned off.

In the power down mode, the M61040 operation is impossible. And CFOUT, DFOUT and PFOUT

pins are set to `high`. (In this situation, both charging and discharging are forbidden. )

At this time, supply current becomes max. 1.0µA , so drops of battery voltage is prevented.

Mitsubishi Electric

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