Datasheet > SG1825C

SG1825C

更新时间： 2023-12-06 20:10:54

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
14页	399K
描述
The SG1825C is a high-performance pulse width modulator optimized for high frequency current-mode

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SG1825C 数据手册

SG1825C

High Speed Current Mode PWM

Features

Description

 Improved Reference Initial Tolerance (±1% max.)

 Improved Oscillator Initial Accuracy (±3% typ.)

 Improved Startup Current (500μA typ.)

 Propagation Delay to Outputs (50ns typ.)

 10V to 30V Operation

The SG1825C is a high-performance pulse width

modulator optimized for high frequency current-mode

power supplies. Included in the controller are a

precision voltage reference, micro power start-up

circuitry, soft-start, high frequency oscillator, wideband

error amplifier, fast current limit comparator, full double-

pulse suppression logic, and dual totem pole output

drivers. Innovative circuit design and an advanced

linear Schottky process result in very short propagation

delays through the current limit comparator, logic, and

output drivers. This device can be used to implement

either current mode or voltage mode switching power

 5.1V Reference Trimmed to ±1%

 2MHz Oscillator Capability

 1.5A Peak Totem-Pole Drivers

 U.V. Lockout with Hysteresis

 No Output Driver “FLOAT”

 Programmable Softstart

supplies.

It also is useful as a series-resonant

 Double-Pulse Suppression Logic

 Wideband Low-Impedance Error Amplifier

 Current-Mode or Voltage-Mode Control

controller to frequencies beyond 1MHz. The SG1825C

is specified for operation over the full military ambient

temperature range of -55°C to 125°C.

High Reliability Features

Available To MIL-STD-883 – 883, ¶ 1.2.1

Available to DSCC

– Standard Microcircuit Drawing (SMD)

. SGR1825C Rad-Tolerant Version Available

Product Highlight

Sample Size = 279

Mean 401.661

Std. Dev. = 3.8

415

390

395

400

405

410

Initial Oscillator Accuracy - kHz

Figure 1 · Product Highlight

November 2014 Rev. 1.4

www.microsemi.com

12 3 4 5 6 7...14

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与SG1825C相关器件

型号	品牌	获取价格	描述	数据表
SG1825C_1	MICROSEMI	获取价格	HIGH-SPEED CURRENT-MODE PWM
SG1825CJ	MICROSEMI	获取价格	HIGH - SPEED CURRENT - MODE PWM
SG1825CJ/883B	MICROSEMI	获取价格	HIGH - SPEED CURRENT - MODE PWM
SG1825CJ/883B-TR	MICROSEMI	获取价格	Switching Controller, Current-mode, 1500kHz Switching Freq-Max, CDIP16, HERMETIC SEALED, C
SG1825CJ/DESC	MICROSEMI	获取价格	HIGH - SPEED CURRENT - MODE PWM
SG1825CJ-883B	MICROSEMI	获取价格	Switching Controller, Current-mode, 0.2A, 1500kHz Switching Freq-Max, BIPolar, CDIP16, HER
SG1825CJ-DESC	MICROSEMI	获取价格	Switching Controller, Current-mode, 0.2A, 1500kHz Switching Freq-Max, BIPolar, CDIP16, HER
SG1825CJ-TR	MICROSEMI	获取价格	Switching Controller, Current-mode, 1500kHz Switching Freq-Max, CDIP16, HERMETIC SEALED, C
SG1825CL	MICROSEMI	获取价格	HIGH - SPEED CURRENT - MODE PWM
SG1825CL/883	MICROSEMI	获取价格	HIGH-SPEED CURRENT-MODE PWM