MITSMI MM1378, MM1377 Datasheet

MITSUMI

Voltage and Current Control (dual op-amp and shunt regulator) (quad op-amp and shunt regulator) MM1377, 1378

Voltage and Current Control (dual op-amp and shunt regulator) (quad op-amp and shunt regulator)

Monolithic IC MM1377, 1378

Outline

The MM1377 incorporates an op-amp with a dual low-input offset voltage and a shunt regulator; the MM1378 combines a quad low-input offset voltage op-amp and shunt regulator. They are appropriate for use in battery chargers, switching power supplies and other voltage and current control applications. Op-amps with low input offset voltage are particularly well-suited for handling current detection signals and other low-amplitude signals.

Features

Op-amp unit

1. Input offset voltage 0.2mV typ.

2. Input offset current 5nA typ.

3. Input bias current 30nA typ.

4. Common-mode input voltage range 0~V

5. Power supply current 0.6mA typ.

Shunt regulator unit

1. Reference voltage 2.5V typ.

2. Reference voltage fluctuation (-20~+80°C) 5mV typ.

3. Minimum cathode current 0.4mA typ.

Package

SOP-8C, SOP-8E (MM1377) SOP-14B (MM1378)

Applications

1. Charger

2. Switching power supply

3. AC adapter

Block Diagram

MM1377 MM1378

MITSUMI

Voltage and Current Control (dual op-amp and shunt regulator) (quad op-amp and shunt regulator) MM1377, 1378

Equivalent Circuit Diagram

Pin Assignment

1432

8567

SOP-8C, SOP-8E

1 AOUT

2 AIN

3 AIN+(REF)

4 GND

5 B

IN+

6 BIN

7 BOUT

8 VCC

SOP-14B

13 62457

14 11 913 12 10 8

1 AOUT 8 COUT

2 AIN

9 CIN

3 AIN+(REF) 10 CIN+

4 VCC 11 GND

5 B

IN+ 12 DIN+

6 BIN

13 DIN

7 BOUT 14 DOUT

MM1377

MM1378

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