M62255 Просмотр технического описания (PDF) - MITSUBISHI ELECTRIC

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производитель

M62255

GENERAL PURPOSE BATTERY CHARGER CONTROL IC

MITSUBISHI ELECTRIC  

New Product TENTATIVE

MITSUBISHI<Dig./Ana. INTERFACE>

M62255FP

GENERAL PURPOSE BATTERY CHARGER CONTROL IC

4.9V

To DOUT

3.7V

2.5V

1.2V

1.3V

0.1V

To DOUT

4times Amplifier

0.3V

3.1V

2.8V

2.5V

2.2V

1.9V

Reference

Voltage

input voltage

Fig.2 Description of Level Magnification

Output voltage of DOUT is fixed as follows;

VDOUT = (VIN - Vref) x 4 + Vref (V) ---------------- (1)

VDout ; Output voltage of DOUT

VIN ; Voltage of IN1 (or IN2,IN3,IN4)

Vref ; Reference voltage for A-D converter

In Fig.2 Reference Voltage is 2.5V. When Input voltage of IN1 (or IN2,IN3,IN4) is set at

2.8V, the difference between input voltage and Reference Voltage is 0.3V. The difference

voltage (0.3V) multiplied by 4 is 1.2V. 1.2V added to Reference Voltage(2.5V) makes

3.7V which is output voltage of VDOUT.

The range of output voltage of VDOUT is between 0V and 5V. So in Fig.2 the range of input

voltage of IN1(or IN2,IN3,IN4) is between 1.9V and 3.1V. (This range of input voltage is

difference from selected Reference Voltage.)

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