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UC2879Q PDF预览

UC2879Q

更新时间: 2024-02-06 21:22:48
品牌 Logo 应用领域
其他 - ETC 开关控制器
页数 文件大小 规格书
7页 373K
描述
Current/Voltage-Mode SMPS Controller

UC2879Q 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:QLCC包装说明:QCCJ, LDCC20,.4SQ
针数:20Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.78Is Samacsys:N
其他特性:CAN ALSO BE CONFIGURED IN 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:18 V最小输入电压:11 V
标称输入电压:12 VJESD-30 代码:S-PQCC-J20
长度:8.965 mm功能数量:1
端子数量:20最高工作温度:85 °C
最低工作温度:-40 °C最大输出电流:0.02 A
封装主体材料:PLASTIC/EPOXY封装代码:QCCJ
封装等效代码:LDCC20,.4SQ封装形状:SQUARE
封装形式:CHIP CARRIER峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:4.57 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:PHASE-SHIFT最大切换频率:300 kHz
技术:BIPOLAR温度等级:INDUSTRIAL
端子形式:J BEND端子节距:1.27 mm
端子位置:QUAD处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:8.965 mmBase Number Matches:1

UC2879Q 数据手册

 浏览型号UC2879Q的Datasheet PDF文件第2页浏览型号UC2879Q的Datasheet PDF文件第3页浏览型号UC2879Q的Datasheet PDF文件第4页浏览型号UC2879Q的Datasheet PDF文件第5页浏览型号UC2879Q的Datasheet PDF文件第6页浏览型号UC2879Q的Datasheet PDF文件第7页 
UC1879  
UC2879  
UC3879  
Phase Shift Resonant Controller  
FEATURES  
DESCRIPTION  
Programmable Output Turn On  
Delay; Zero Delay Available  
The UC3879 controls a bridge power stage by phase shifting the switching  
of one half-bridge with respect to the other. This allows constant frequency  
pulse width modulation in combination with resonant, zero-voltage switching  
for high efficiency performance. The UC3879 can be configured to provide  
control in either voltage mode or current mode operation, with overcurrent  
shutdown for fast fault protection.  
Compatible with Voltage Mode or  
Current Mode Topologies  
Practical Operation at Switching  
Frequencies to 300kHz  
Independently programmable time delays provide dead-time at the turn-on  
of each output stage, allowing time for each resonant switching interval.  
Four 100mA Totem Pole Outputs  
10MHz Error Amplifier  
With the oscillator capable of operating in excess of 600kHz, overall output  
switching frequencies to 300kHz are practical. In addition to the standard  
free running mode, with the CLKSYNC pin, the user may configure the  
UC3879 to accept an external clock synchronization signal. Alternatively, up  
to three units can be locked together with the operational frequency deter-  
mined by the fastest device.  
Pin Programmable Undervoltage  
Lockout  
Low Startup Current - 150µA  
Soft Start Control  
Protective features include an undervoltage lockout and overcurrent protec-  
tion. Additional features include a 10MHz error amplifier, a 5V precision ref-  
erence, and soft start. The UC3879 is available in 20 pin N, J, DW, and Q  
and 28 pin L packages.  
Outputs Active Low During UVLO  
BLOCK DIAGRAM  
UDG-94070-1  
6/98  
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