Datasheet > LT124XMJ8

LT124XMJ8

更新时间： 2024-02-23 06:56:01

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
16页	335K
描述
High Speed Current Mode Pulse Width Modulators

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技术参数
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LT124XMJ8 技术参数

是否Rohs认证：	不符合	生命周期：	Transferred
包装说明：	DIP, DIP8,.3	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.9	模拟集成电路 - 其他类型：	SWITCHING CONTROLLER
控制模式：	CURRENT-MODE	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	25 V	最小输入电压：	11 V
标称输入电压：	15 V	JESD-30 代码：	R-CDIP-T14
JESD-609代码：	e0	长度：	10.287 mm
功能数量：	1	端子数量：	8
最高工作温度：	125 °C	最低工作温度：	-55 °C
最大输出电流：	1 A	最大输出电压：	5.075 V
最小输出电压：	4.925 V	标称输出电压：	5 V
封装主体材料：	CERAMIC	封装代码：	DIP
封装等效代码：	DIP8,.3	封装形状：	RECTANGULAR
封装形式：	IN-LINE	座面最大高度：	5.28 mm
标称供电电压 (Vsup)：	15 V	表面贴装：	NO
最大切换频率：	500 kHz	温度等级：	MILITARY
端子面层：	Tin/Lead (Sn/Pb)	端子形式：	THROUGH-HOLE
端子节距：	2.54 mm	端子位置：	DUAL
宽度：	7.62 mm

LT124XMJ8 数据手册

LT1241 Series

High Speed Current Mode

Pulse Width Modulators

DESCRIPTIO

EATURE

Low Start-Up Current: < 250µA

50ns Current Sense Delay

Current Mode Operation: To 500kHz

Pin Compatible with UC1842 Series

Undervoltage Lockout with Hysteresis

No Cross-Conduction Current

The LT^®1241 series devices are 8-pin, fixed frequency,

currentmode,pulsewidthmodulators.Theyareimproved

plugcompatibleversionsoftheindustrystandardUC1842

series. These devices have both improved speed and

lower quiescent current. The LT1241 series is optimized

for off-line and DC/DC converter applications. They con-

tain a temperature-compensated reference, high gain er-

ror amplifier, current sensing comparator and a high

current totem pole output stage ideally suited to driving

power MOSFETs. Start-up current has been reduced to

less than 250µA. Cross-conduction current spikes in

the output stage have been eliminated, making 500kHz

operation practical. Several new features have been incor-

porated. Leading edge blanking has been added to the

current sense comparator. Trims have been added to the

oscillator circuit for both frequency and sink current, and

both of these parameters are tightly specified. The output

stage is clamped to a maximum V_OUTof 18V in the

on state. The output and the reference output are actively

pulled low during undervoltage lockout.

■

Trimmed Bandgap Reference

1A Totem Pole Output

Trimmed Oscillator Frequency and Sink Current

Active Pull-Down on Reference and Output During

Undervoltage Lockout

■

High Level Output Clamp: 18V

^{Current Sense Le}O ^adU ^{ing Edge Blanking}

PPLICATI

■

Off-Line Converters

DC/DC Converters

■

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

BLOCK DIAGRA

LOCKOUT

REFERENCE ENABLE

REFERENCE PULL-DOWN

5V REF

MAIN BIAS

REF

OUTPUT

PULL-DOWN

OSCILLATOR

R /C

OUTPUT

GND

5.6V

COMP

1mA

–

BLANKING

1.5V

–

2.5V

18V

SENSE

–

1241 BD01

12 3 4 5 6 7...16

中文翻译

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与LT124XMJ8相关器件

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LT1250	Linear	获取价格	Very Low Noise Zero-Drift Bridge Amplifier
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LT1251_15	Linear	获取价格	40MHz Video Fader and DC Gain Controlled Amplifier
LT12512-15E	ETC	获取价格	Analog IC
LT1251CN	Linear	获取价格	40MHz Video Fader and DC Gain Controlled Amplifier
LT1251CN#PBF	Linear	获取价格	LT1251 - 40MHz Video Fader and DC Gain Controlled Amplifier; Package: PDIP; Pins: 14; Temp
LT1251CN14	Linear	获取价格	IC OP-AMP, 5000 uV OFFSET-MAX, 40 MHz BAND WIDTH, PDIP14, Operational Amplifier
LT1251CS	Linear	获取价格	40MHz Video Fader and DC Gain Controlled Amplifier
LT1251CS#PBF	Linear	获取价格	LT1251 - 40MHz Video Fader and DC Gain Controlled Amplifier; Package: SO; Pins: 14; Temper

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