LM2902B中文資料德州儀器數(shù)據(jù)手冊(cè)PDF規(guī)格書

1 Features

? AEC Q-100 qualified for automotive applications

– Temperature grade 1: –40°C to +125°C

– Device HBM ESD classification 2

– Device CDM ESD classification C5

? Wide supply range of:

– 3 V to 36 V (LM2902B-Q1 and LM2902BA-Q1)

– 3 V to 32 V (LM2902KV and LM2902KAV)

– 3 V to 26 V (all other products)

? Input offset voltage maximum at 25°C of:

– 2 mV (LM2902BA-Q1 and LM2902KAV)

– 3 mV (LM2902B-Q1)

– 7 mV (all other products)

? Internal RF and EMI filter (LM2902B-Q1 and

LM2902BA-Q1)

? Supply-current of 175 μA per channel, typical

? Unity-gain bandwidth of 1.2 MHz

? Common-mode input voltage range includes V–

? Differential input voltage range equal to maximumrated

supply voltage

2 Applications

? Automotive lighting

? Body electronics

? Automotive head unit

? Telematics control unit

? Emergency call (eCall)

? Passive safety: brake system

? Electric vehicle / hybrid electric:

– Inverter and motor control

– On-board (OBC) and wireless charger

– Battery management system (BMS)

3 Description

This device consists of four independent high-gain

frequency-compensated operational amplifiers that

are designed specifically to operate from a single

supply over a wide range of voltages. Operation from

split supplies is possible when the difference between

the two supplies is 3 V to 36 V (for B-version devices),

3 V to 32 V (for V-version devices) or 3 V to 26

V (for all other devices), and VCC is at least 1.5 V

more positive than the input common-mode voltage.

The low supply-current drain is independent of the

magnitude of the supply voltage.

Applications include transducer amplifiers, dc

amplification blocks, and all the conventional

operational-amplifier circuits that now can be more

easily implemented in single-supply-voltage systems.

For example, the LM2902 can be operated directly

from the standard 5-V supply that is used in

digital systems and easily provides the required

interface electronics without requiring additional ±15-V

supplies.