ML4823IP中文资料PDF规格书
ML4823IP规格书详情
GENERAL DESCRIPTION
The ML4823 High Frequency PWM Controller is an IC controller optimized for use in Switch Mode Power Supply designs running at frequencies to 1MHz. Propagation delays are minimal through the comparators and logic for reliable high frequency operation while slew rate and bandwidth are maximized on the error amplifier. This controller is designed for single-ended applications using voltage or current mode and provides for input voltage feed forward.
A 1V threshold current limit comparator provides cycle by-cycle current limit and exceeding a 1.4V threshold initiates a soft-start cycle. The soft start pin doubles as a maximum duty cycle clamp. All logic is fully latched to provide jitter-free operation and prevent multiple pulsing. An under-voltage lockout circuit with 800mV of hysteresis assures low startup current and drives the outputs low during fault conditions.
This controller is an improved second source for the UC3823 controller; however, the ML4823 includes features not found on the 3823. These features are set in italics.
FEATURES
■ Practical operation at switching frequencies to 1.0MHz
■ High current (2A peak) totem pole output
■ Wide bandwidth error amplifier
■ Fully latched logic with double pulse suppression
■ Pulse-by-pulse current limiting
■ Soft start and max. duty cycle control
■ Under voltage lockout with hysteresis
■ 5.1V trimmed bandgap reference
■ Low start-up current (1.1mA)
■ Pin compatible improved replacement for UC3823
■ Fast shut down path from current limit to output
■ Soft start latch ensures full soft start cycle
■ Outputs pull low for undervoltage lockout
产品属性
- 型号:
ML4823IP
- 功能描述:
开关变换器、稳压器与控制器 Pwr Spply Controller High Frequency
- RoHS:
否
- 制造商:
Texas Instruments
- 输出电压:
1.2 V to 10 V
- 输出电流:
300 mA
- 输入电压:
3 V to 17 V
- 开关频率:
1 MHz
- 安装风格:
SMD/SMT
- 封装/箱体:
WSON-8
- 封装:
Reel
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
FAIRCHILD |
DIP16 |
68900 |
原包原标签100%进口原装常备现货! |
询价 | |||
onsemi(安森美) |
23+ |
PDIP16 |
6000 |
诚信服务,绝对原装原盘 |
询价 | ||
FAIRCHILDSEMICONDUCTOR |
22+ |
N/A |
12245 |
现货,原厂原装假一罚十! |
询价 | ||
FAIRCHILDSEMICONDUCTOR |
NA |
3000 |
原装现货支持BOM配单服务 |
询价 | |||
MICRO |
23+ |
SOP |
155 |
询价 | |||
FSC |
2016+ |
原厂封装 |
6528 |
只做原厂原装现货!终端客户个别型号可以免费送样品! |
询价 | ||
FAIRCHILD/仙童 |
2022 |
DIP16 |
80000 |
原装现货,OEM渠道,欢迎咨询 |
询价 | ||
FAIRCHILD/仙童 |
23+ |
NA/ |
4250 |
原装现货,当天可交货,原型号开票 |
询价 | ||
FAIRCHIL |
23+ |
SOP |
9526 |
询价 | |||
FAIRCHILDSEMICONDUCTOR |
标准封装 |
58998 |
一级代理原装正品现货期货均可订购 |
询价 |