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MC34025DW

更新时间： 2024-11-03 22:58:15
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA 控制器
页数 文件大小 规格书
20页 520K
描述
High Speed Double-Ended PWM Controller

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中文翻译

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MC34025DW 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：SOP, SOP16,.4Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.75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：30 V最小输入电压：10 V
标称输入电压：15 VJESD-30 代码：R-PDSO-G16
JESD-609代码：e0长度：10.3 mm
功能数量：1端子数量：16
最高工作温度：70 °C最低工作温度：
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
认证状态：Not Qualified座面最大高度：2.65 mm
子类别：Switching Regulator or Controllers最大供电电流 (Isup)：35 mA
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：1000 kHz技术：BIPOLAR
温度等级：COMMERCIAL端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL宽度：7.5 mm
Base Number Matches：1

MC34025DW 数据手册

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Order this document by MC34025/D  
The MC34025 series are high speed, fixed frequency, double–ended  
pulse width modulator controllers optimized for high frequency operation.  
They are specifically designed for Off–Line and DC–to–DC converter  
applications offering the designer a cost effective solution with minimal  
external components. These integrated circuits feature an oscillator, a  
temperature compensated reference, a wide bandwidth error amplifier, a  
high speed current sensing comparator, steering flip–flop, and dual high  
current totem pole outputs ideally suited for driving power MOSFETs.  
Also included are protective features consisting of input and reference  
undervoltage lockouts each with hysteresis, cycle–by–cycle current limiting,  
and a latch for single pulse metering.  
16  
1
P SUFFIX  
PLASTIC PACKAGE  
CASE 648  
The flexibility of this series allows it to be easily configured for either  
current mode or voltage mode control.  
16  
• 50 ns Propagation Delay to Outputs  
1
• Dual High Current Totem Pole Outputs  
• Wide Bandwidth Error Amplifier  
DW SUFFIX  
PLASTIC PACKAGE  
CASE 751G  
• Fully–Latched Logic with Double Pulse Suppression  
• Latching PWM for Cycle–By–Cycle Current Limiting  
• Soft–Start Control with Latched Overcurrent Reset  
• Input Undervoltage Lockout with Hysteresis  
• Low Start–Up Current (500 µA Typ)  
(SO–16L)  
• Internally Trimmed Reference with Undervoltage Lockout  
• 90% Maximum Duty Cycle (Externally Adjustable)  
• Precision Trimmed Oscillator  
PIN CONNECTIONS  
• Voltage or Current Mode Operation to 1.0 MHz  
• Functionally Similar to the UC3825  
Error Amp  
1
2
16  
15  
14  
V
Inverting Input  
Error Amp  
Noninverting Input  
ref  
V
CC  
3
4
5
Output B  
Error Amp Output  
Simplified Application  
13  
12  
11  
10  
9
Clock  
V
C
16  
4
15  
V
Power Ground  
Output A  
R
T
5.1V  
Reference  
V
ref  
CC  
6
7
8
C
T
Clock  
Ground  
Ramp  
5
UVLO  
R
C
T
Current Limit/  
Shutdown  
Oscillator  
Soft–Start  
13  
14  
T
V
C
6
7
(Top View)  
Output B  
Ramp  
Latching  
PWM and  
Steering  
Flip Flop  
3
Error Amp  
Output  
Noninverting  
Input  
Error  
Amp  
11  
2
ORDERING INFORMATION  
Operating  
Output A  
Power  
Ground  
Inverting  
Input  
Temperature Range  
Device  
Package  
1
8
12  
9
MC33025DW  
MC33025P  
MC34025DW  
MC34025P  
SO–16L  
Plastic DIP  
SO–16L  
T
= –40° to +105°C  
Current  
Limit/  
Shutdown  
Soft–Star  
A
Soft–Start  
t
Ground  
10  
T
= 0° to +70°C  
A
Plastic DIP  
This device contains 227 active transistors.  
Motorola, Inc. 1996  
Rev 1  
1234567...20

中文翻译

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