Datasheet > LT1244

LT1244

更新时间： 2023-12-20 18:44:04

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	1183K
描述
高速电流模式脉宽调制器

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中文翻译

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数据手册

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LT1244 数据手册

LT1241 Series

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

temperature range, otherwise specifications are at T_A= 25°C. (Notes 2 and 3)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Output Section

Output Low Level

= 20mA

= 200mA

0.25

0.75

0.4

2.2

OUT

Output High Level

= 20mA

= 200mA

12.0

11.75

OUT

Rise Time

C = 1nF, T = 25°C

Fall Time

C = 1.0nF, T = 25°C

L J

Output Clamp Voltage

Undervoltage Lockout

I = 1mA

19.5

Start-Up Threshold

LT1241

9.0

7.8

9.6

8.4

10.2

9.0

LT1242/LT1244

LT1243/LT1245

Minimum Operating Voltage

LT1241/LT1243/LT1245

LT1242/LT1244

7.0

9.0

7.6

8.2

Hysteresis

LT1241

1.6

5.5

0.4

2.0

6.0

0.8

LT1242/LT1244

LT1243/LT1245

PWM

Maximum Duty Cycle

LT1241/LT1244/LT1245

LT1242/LT1243

T = 25°C

Minimum Duty Cycle

Total Device

Start-Up Current

Operating Current

170

250

µA

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: Unless otherwise specified, V = 15V, R = 10k, C = 3.3nF.

Note 3: Low duty cycle pulse techniques are used during test to maintain

junction temperature close to ambient.

Rev B

For more information www.analog.com

1 2 345 6 7...20

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