MM1380 データシートの表示（PDF） - Mitsumi

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MM1380

Sense Current Amplifier

Mitsumi 

MITSUMI

Sense Current Amplifier

Monolithic IC MM1380

Sense Current Amplifier MM1380

Outline

This IC was developed for charge/discharge current - voltage conversion for secondary batteries (MiMH, Li-

ion) in notebook PCs, PDA, etc.

The IC can operate from a 3V power supply, and detection power supply can detect current up to 24V. It

monitors charge and discharge current on notebook PC batteries, inputs the data to the CPU and manages

remaining battery power, etc.

Features

1. CMRR f = 1kHz

2. PSRR f = 1kHz

3. Power supply voltage

4. Consumption current

5. Voltage gain

6. Input equivalent offset voltage

7. Current detection high/low switching

80dB typ.

80dB typ.

3 ~ 24V

150µA typ.

switchable between 50

±0.5mV

and 100

Package

VSOP-8A

Sense Current Amplifier

Channel Package CMRR (f=1kHz)

Increased current sensing

1 (V)

2 (V)

MM1380AW

1

VSOP-8A

80dB typ.

* 1.8~24

-0.3~VCC-2.4

*The current can be detected up to 24V regardless of the power voltage.

Applications

(1) Notebook PCs

(2) PDA

Input conversion

offset voltage (mV)

±0.5

Pin Assignment

1

ISEL

2

IN-

3

IN+

4

GND

5

COM

6

OUT

7

VCC

8

GSEL

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