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UCC3585N PDF预览

UCC3585N

更新时间: 2024-09-19 13:15:07
品牌 Logo 应用领域
德州仪器 - TI 控制器
页数 文件大小 规格书
10页 142K
描述
Low Voltage Synchronous Buck Controller 16-PDIP 0 to 85

UCC3585N 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:DIP
包装说明:DIP, DIP16,.3针数:16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:5.74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:6.3 V最小输入电压:3 V
标称输入电压:3.3 VJESD-30 代码:R-PDIP-T16
JESD-609代码:e4长度:19.305 mm
功能数量:1端子数量:16
最高工作温度:85 °C最低工作温度:
最大输出电流:1 A封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装等效代码:DIP16,.3
封装形状:RECTANGULAR封装形式:IN-LINE
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
座面最大高度:5.08 mm子类别:Switching Regulator or Controllers
表面贴装:NO切换器配置:PUSH-PULL
最大切换频率:500 kHz技术:BICMOS
温度等级:OTHER端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:7.62 mmBase Number Matches:1

UCC3585N 数据手册

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UCC2585  
UCC3585  
PRELIMINARY  
Low Voltage Synchronous Buck Controller  
FEATURES  
DESCRIPTION  
Resistor Programmable 1.25V to 4.5V The UCC2585/UCC3585 synchronous Buck controller provides flexible  
VOUT  
high efficiency power conversion for output voltages as low as 1.25V with  
guaranteed ±1% DC accuracy. Output currents are only limited by the  
choice of external logic level MOSFETs. With an input voltage range of  
2.5V to 6.0V it is the ideal choice for 3.3V only, battery input, or other low  
voltage systems. Applications include local microprocessor core voltage  
power supplies for desktop and Notebook computers, and high speed GTL  
bus regulation. Its fixed frequency oscillator is capable of providing practical  
PWM operation to 700kHz.  
2.5V to 6V Input Supply Range  
1% DC Accuracy  
High Efficiency Synchronous  
Switching  
Drives P-channel (High Side) and  
N-channel (Low Side) MOSFETs  
With its low voltage capability and inherent “always on” operation, the  
UCC2585/UCC3585 causes VOUT to track VIN once VIN has exceeded  
the threshold voltage of the external P channel MOSFET. Tracking can be  
tailored for any application with a single resistor or disabled by connecting  
TRACK to VIN. For dual supply rail microprocessors this feature negates  
the need for external diodes to insure supply voltage tracking between the  
+3.3V and lower voltage microprocessor core supplies.  
Lossless Programmable Current Limit  
Logic Compatible Shutdown  
Programmable Frequency  
Start-up Voltage Tracking Protects  
Dual Rail Microprocessors  
(continued)  
TYPICAL APPLICATION DIAGRAM  
VIN  
C8  
0.47µF  
R3  
27.4k  
R1  
10k  
+
+
15 VIN  
CLSET  
8
R5  
3
C1  
C2  
Q1  
IRF7404  
150µF 150µF  
1
2
4
ENB  
PDRV 12  
C7  
147pF  
R2  
549k  
L1 4.7µF  
COMP  
VFB  
ISENSE 11  
NDRV 14  
VOUT  
R6  
3
Q2  
IRF7401  
+
+
+
C11  
C9  
C10  
220µF  
220µF  
220µF  
10 SD  
TRACK  
N/C  
6
9
C4  
3.2N  
R10  
36k  
R12  
32k  
3
SS  
C5  
0.22µF  
16 CT  
PWRGND 13  
C6  
470pF  
7
ISET  
GND  
5
R11  
82k  
R4  
100k  
RTN  
RTN  
UDG-98024  
07/99  

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