LT1166 Linear Technology Corporation, LT1166 Datasheet

LT1166

Manufacturer Part Number

LT1166

Description

Manufacturer

Linear Technology Corporation

Datasheets

1.LT1166.pdf (16 pages)

2.LT1166.pdf (16 pages)

3.LT1166.pdf (16 pages)

Specifications of LT1166

Case

SOP8

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

LT1166CN8

Manufacturer:

LTNEAR

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

LT1166CS8

Manufacturer:

LINEAR/凌特

Quantity:

20 000

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FEATURES

APPLICATIONS

TYPICAL

MPS2907

MPS2222

Set Class AB Bias Currents

Eliminates Adjustments

Eliminates Thermal Runaway of I

Corrects for Device Mismatch

Simplifies Heat Sinking

Programmable Current Limit

May Be Paralleled for Higher Current

Small SO-8 or PDIP Package

Biasing Power MOSFETs

High Voltage Amplifiers

Shaker Table Amplifiers

Audio Power Amplifiers

4.3k

Figure 1. Unity Gain Buffer with Current Limit

5.6k

100

APPLICATION

LT1166

BOTTOM

1 I

4 I

TOP

2N2907

2N2222

TOP

BOTTOM

SENSE

= 15mA

LIM

OUT

–

= 15mA

–

300pF

100

–15V

1 F

15V

IRF530

IRF9530

0.33

SENSE

–

220 F

1166 • F01

OUT

220 F

DESCRIPTION

The LT

class AB output current in high powered amplifiers. When

connected with external transistors, the circuit becomes a

unity-gain voltage follower. The LT1166 is ideally suited

for driving power MOSFET devices because it eliminates

all quiescent current adjustments and critical transistor

matching. Multiple output stages using the LT1166 can be

paralleled to obtain higher output current.

Thermal runaway of the quiescent point is eliminated

because the bias system senses the current in each power

transistor by using a small external sense resistor. A high

speed regulator loop controls the amount of drive applied

to each power device. The LT1166 can be biased from a pair

of resistors or current sources and because it operates on the

drive voltage to the output transistors, it operates on any

supply voltage.

OUTPUT

INPUT

, LTC and LT are registered trademarks of Linear Technology Corporation.

1166 is a bias generating system for controlling

Automatic Bias System

Unity Gain Buffer Amp Driving 1 Load

Power Output Stage

LT1166

1166 • TA01

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