Datasheet > LTC1177-5_15

LTC1177-5_15

更新时间： 2024-11-23 01:16:39

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
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描述
Isolated MOSFET Drivers

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数据手册

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LTC1177-5_15 数据手册

LTC1177-5/LTC1177-12

Isolated MOSFET Drivers

OBSOLETE:

Contact Linear Technology for Potential Replacement

FOR INFORMATION PURPOSES ONLY

DESCRIPTIO

EATURE

UL Recognized

The LTC^®1177-5/LTC1177-12 are isolated high side

MOSFET drivers. When used with an external N-channel

MOSFET, the LTC1177-5/LTC1177-12 form an isolated

solid state switch for reliable bounce-free switching op-

eration. The output does not require an auxiliary power

supply to maintain an on-state condition.

File E151738 to UL1577

No Secondary Power Supply

Drives Any Logic Level FET

Low Input Current: 1mA Typ (LTC1177-5),

2.5mA Typ (LTC1177-12)

Turns On in 1ms Typ and Turns Off in 1ms Typ

2500V_RMSof Isolation Voltage

Isolates Input from High Voltage Transients at Load

Clean, Bounce-Free Switching

Current Limit

Two lead frame capacitors are used to transfer energy

fromtheinputtodrivethegateoftheMOSFETandprovide

the necessary isolation. Unlike optoisolated FET drivers,

the input current for the LTC1177-5 is only 1mA and

2.5mA for LTC1177-12. It also does not have the aging

problems endemic to optocouplers.

Small Outline Package

Both devices provide 2500V_RMS(1 minute) or 3000V_RMS

(1 second) of output-to-input isolation.

O U

PPLICATI

The LTC1177-5/LTC1177-12 are available in the 18-pin

PDIP or 28-pin SW package.

Solid State Relay

Isolated Solenoid Driver

Isolated Motor Driver

Isolated Lamp Driver

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

TYPICAL APPLICATI

Isolated High Side Switch

Input vs Output

f = 50Hz

5V OR 12V

GND1

LTC1177-5

LTC1177-12

= 40V

V_OUT

ISOLATION BARRIER

GND2

47µF

50V

V_IN

MTD3055EL

OUT

SENSE

OUT

1177 TA02

OUT

50Ω

1177 TA01

12 3 4 5 6 7 8

中文翻译

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