ML4823CQ中文资料MICRO-LINEAR数据手册PDF规格书
ML4823CQ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:
ML4823CQ
- 功能描述:
电流型 PWM 控制器 Pwr Spply Controller High Frequency
- RoHS:
否
- 制造商:
Texas Instruments
- 开关频率:
27 KHz
- 工作电源电压:
6 V to 15 V
- 工作电源电流:
1.5 mA
- 输出端数量:
1
- 最大工作温度:
+ 105 C
- 安装风格:
SMD/SMT
- 封装/箱体:
TSSOP-14
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
FAIRCHILDSEMICONDUCTOR |
23+ |
NA |
30000 |
房间原装现货特价热卖,有单详谈 |
询价 | ||
FAIRCHILDSEMICONDUCTOR |
NA |
16000 |
原装现货支持BOM配单服务 |
询价 | |||
FAIRCHILD |
NA |
8600 |
原装正品,欢迎来电咨询! |
询价 | |||
ML |
PLCC20 |
9850 |
一级代理 原装正品假一罚十价格优势长期供货 |
询价 | |||
F |
2016+ |
PLCC |
6523 |
只做原装正品现货!或订货! |
询价 | ||
FAIRCHILD/仙童 |
2022+ |
PLCC20 |
15680 |
原盒原标,正品现货 诚信经营 终生质保 |
询价 | ||
ML |
23+ |
PLCC20 |
65480 |
询价 | |||
Fairchild |
24+ |
原厂封装 |
28500 |
授权代理直销,原厂原装现货,假一罚十,特价销售 |
询价 | ||
MICROLINEAR |
2022 |
PLCC |
5280 |
原厂原装正品,价格超越代理 |
询价 | ||
onsemi(安森美) |
23+ |
PLCC-20(8 |
1612 |
特价优势库存质量保证稳定供货 |
询价 |