Datasheet > LTC7862

LTC7862

更新时间： 2023-12-20 18:44:11

品牌	Logo	应用领域
亚德诺 - ADI		开关
页数	文件大小	规格书
32页	1666K
描述
140V 高效开关浪涌抑制器

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中文翻译

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数据手册

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LTC7862 数据手册

LTC7862

ELECTRICAL CHARACTERISTICS ^Thel denotes the specifications which apply over the specified operating

junction temperature range, otherwise specifications are at T_A= 25°C (Note 2), V_IN= 12V, V_RUN= 5V, V_EXTVCC= 0V, V_DRVUV= 0V

unless otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

140

UNITS

Input Supply Operating Voltage Range

Regulated Output Clamp Voltage Set Point

Regulated Feedback Voltage

(Note 9) DRVUV = 0V

OUT

(Note 4); ITH Voltage = 1.2V

0°C to 85°C

0.792

0.788

0.800

0.808

0.812

Feedback Current

(Note 4)

–0.006

0.002

0.050

0.02

µA

Feedback Voltage Line Regulation

Feedback Voltage Load Regulation

(Note 4) V = 4.5V to 150V

%/V

(Note 4) Measured in Servo Loop,

∆ITH Voltage = 1.2V to 0.7V

0.01

0.1

(Note 4) Measured in Servo Loop,

∆ITH Voltage = 1.2V to 1.6V

–0.01

–0.1

mmho

Transconductance Amplifier gm

Input DC Supply Current

Shutdown

(Note 4) ITH = 1.2V, Sink/Source 5µA

(Note 5) V = 0.77V

1.2

RUN = 0V

µA

UVLO

Undervoltage Lockout

DRV Ramping Up

DRVUV = 0V

4.0

7.5

4.2

7.8

DRVUV = INTV

DRV Ramping Down

DRVUV = 0V

3.6

6.4

3.8

6.7

4.0

7.0

DRVUV = INTV

RUN Pin ON Threshold

RUN Pin Hysteresis

Rising

1.1

1.2

1.3

RUN

Hyst

RUN

OVLO

Overvoltage Lockout Threshold

Rising

1.1

1.2

100

1.3

OVLO

OVLO Hyst OVLO Hysteresis

OVLO Delay

µs

Feedback Overvoltage Protection

Measured at V , Relative to Regulated V

–

SENSE Pin Current

µA

SENSE

–

SENSE Pin Current

SENSE = SENSE = 28V

In Dropout

900

SENSE

Maximum TG Duty Factor

100

Soft-Start Charge Current

= 0V

µA

Maximum Current Sense Threshold

= 0.7V, V

– = 28V

SENSE

SENSE(MAX)

Rev 0

For more information www.analog.com

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中文翻译

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