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UC28025DWRG4 PDF预览

UC28025DWRG4

更新时间： 2024-11-21 19:18:55
品牌 Logo 应用领域
德州仪器 - TI 开关光电二极管
页数 文件大小 规格书
19页 311K
描述
Economy High Speed PWM Controllers (Double-ended) 16-SOIC -40 to 105

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中文翻译

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UC28025DWRG4 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：SOIC包装说明：SOP, SOP16,.4
针数：16Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.19其他特性：CAN ALSO BE CONFIGURED IN PEAK CURRENT OR AVERAGE CURRENT MODE
模拟集成电路 - 其他类型：SWITCHING CONTROLLER控制模式：VOLTAGE-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：30 V
最小输入电压：9 V标称输入电压：15 V
JESD-30 代码：R-PDSO-G16JESD-609代码：e4
长度：10.3 mm湿度敏感等级：2
功能数量：1端子数量：16
最高工作温度：105 °C最低工作温度：-40 °C
最大输出电流：2 A封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP16,.4
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：2.65 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：1000 kHz温度等级：INDUSTRIAL
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：7.5 mm
Base Number Matches：1

UC28025DWRG4 数据手册

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UC28023  
UC28025  
SLUS557F -- MARCH 2003 -- REVISED AUGUST 2010  
ECONOMY HIGH-SPEED PWM CONTROLLER  
FEATURES  
DESCRIPTION  
D
Peak Current Mode, Average Current Mode,  
or Voltage Mode (with Feed-Forward) Control  
Methods  
The UC28023 and UC28025 are fixed-frequency  
PWM controllers optimized for high-frequency  
switched-mode power supply applications. The  
UC28023 is a single output PWM for single-ended  
topologies while the UC28025 offers dual  
alternating outputs for double-ended and full  
bridge topologies.  
D
D
D
D
Practical Operation Up to 1 MHz  
50-ns Propagation Delay to Output  
±1.5-A Peak Totem Pole Outputs  
9-V to 30-V Nominal Operational Voltage  
Range  
Targeted for cost effective solutions with minimal  
external components, UC2802x include an  
oscillator, a temperature compensated reference,  
a wide band width error amplifier, a high-speed  
current-sense comparator and high-current  
active-high totem-pole outputs to directly drive  
external MOSFETs.  
D
D
Wide Bandwidth Error Amplifier  
Fully Latched Logic with Double Pulse  
Suppression  
D
D
D
D
D
Pulse-by-Pulse Current Limiting  
Programmable Maximum Duty Cycle Control  
Under--Voltage Lockout with Hysteresis  
Trimmed 5.1-V Reference with UVLO  
Same Functionality as UC3823 and UC3825  
Protection circuitry includes a current limit  
comparator with  
a 1-V threshold, a TTL  
compatible shutdown port, and a soft-start pin  
which will double as a maximum duty cycle clamp.  
The logic is fully latched to provide jitter free  
operation and prohibit multiple pulses at an  
output. An undervoltage lockout section with  
800 mV of hysteresis assures low start-up  
current. During undervoltage lockout, the outputs  
are high impedance. Particular care was given to  
minimizing propagation delays through the  
comparators and logic circuitry while maximizing  
bandwidth and slew rate of the error amplifier.  
APPLICATIONS  
D
D
Off-Line and DC/DC Power Supplies  
Converters Using Voltage Mode, Peak  
Current Mode, or Average Current Mode  
Control Methods  
D
Single-Ended or Two-Switch Topology  
Designs  
Devices areavailableintheindustrialtemperature  
range of --40°C to 105°C. Package offerings are  
16-pin SOICW (DW), or 16-pin PDIP (N)  
packages.  
ORDERING INFORMATION  
PACKAGED DEVICES  
OUTPUT  
CONFIGURATION  
EXTERNAL CURRENT  
LIMIT REFERENCE  
T
T
J
A =  
PDIP-16 (N)  
SOICW--16 (DW)  
UC28023DW  
Single  
Yes  
No  
UC28023N  
UC28025N  
-- 4 0 °C to 105°C  
Dual Alternating  
UC28025DW  
(1)  
The DW package are also available taped and reeled. Add an R suffix to the device type (i.e., UC28023DWR (2,000 devices per reel).  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
Copyright © 2005 -- 2010, Texas Instruments Incorporated  
1
www.ti.com  
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UC28025DWRG4 替代型号

型号 品牌 替代类型 描述 数据表
UC28025DWR TI

类似代替

 经济型双端高速 PWM 控制器 | DW | 16 | -40 to 105
UC28025DWG4 TI

类似代替

 经济型双端高速 PWM 控制器 | DW | 16 | -40 to 105
UC28025DW TI

类似代替

 ECONOMY HIGH-SPEED PWM CONTROLLER

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