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UC2860DWTR PDF预览

UC2860DWTR

更新时间: 2024-11-23 12:16:55
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
10页 548K
描述
Resonant Mode Power Supply Controller

UC2860DWTR 技术参数

是否无铅: 含铅生命周期:Obsolete
零件包装代码:SOIC包装说明:SOP,
针数:24Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.84模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制技术:RESONANT CONTROL最大输入电压:20 V
最小输入电压:10 V标称输入电压:12 V
JESD-30 代码:R-PDSO-G24长度:15.4 mm
功能数量:1端子数量:24
最高工作温度:85 °C最低工作温度:-25 °C
最大输出电流:2 A封装主体材料:PLASTIC/EPOXY
封装代码:SOP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表面贴装:YES
切换器配置:PUSH-PULL最大切换频率:2000 kHz
温度等级:OTHER端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
宽度:7.5 mmBase Number Matches:1

UC2860DWTR 数据手册

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UC1860  
UC2860  
UC3860  
Resonant Mode Power Supply Controller  
FEATURES  
DESCRIPTION  
3MHz VFO Linear over 100:1 Range  
The UC1860 family of control ICs is a versatile system for resonant mode  
power supply control. This device easily implements frequency modulated  
fixed-on-time control schemes as well as a number of other power supply  
control schemes with its various dedicated and programmable features.  
5MHz Error Amplifier with Controlled  
Output Swing  
Programmable One Shot Timer—  
Down to 100ns  
The UC1860 includes a precision voltage reference, a wide-bandwidth er-  
ror amplifier, a variable frequency oscillator operable to beyond 3MHz, an  
oscillator-triggered one-shot, dual high-current totem-pole output drivers,  
and a programmable toggle flip-flop. The output mode is easily pro-  
grammed for various sequences such as A, off, B, off; A & B, off; or A, B,  
off. The error amplifier contains precision output clamps that allow pro-  
gramming of minimum and maximum frequency.  
Precision 5V Reference  
Dual 2A Peak Totem Pole Outputs  
Programmable Output Sequence  
Programmable Under Voltage Lockout  
Very Low Start Up Current  
The device also contains an uncommitted comparator, a fast comparator  
for fault sensing, programmable soft start circuitry, and a programmable  
restart delay. Hic-up style response to faults is easily achieved. In addi-  
tion, the UC1860 contains programmable under voltage lockout circuitry  
that forces the output stages low and minimizes supply current during  
start-up conditions.  
Programmable Fault Management &  
Restart Delay  
Uncommitted Comparator  
ABSOLUTE MAXIMUM RATINGS  
Supply Voltage (pin 19) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V Comparator Output Voltage (pin 15) . . . . . . . . . . . . . . . . . . 15V  
Output Current, Source or Sink (pins 17 & 20) Soft Start or Restart Delay Sink Current (pins 22 & 23) . . . 5mA  
DC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8A Power Dissipation at TA = 50°C (DIP) . . . . . . . . . . . . . . . 1.25W  
Pulse (0.5µs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0A Power Dissipation at TA = 50°C (PLCC) . . . . . . . . . . . . . . . . 1W  
Power Ground Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.2V Lead Temperature (Soldering, 10 seconds) . . . . . . . . . . . 300°C  
Inputs (pins 1, 2, 3, 4, 8, 9, 11, 12,  
Note: All voltages are with respect to signal ground and all  
currents are positive into the specified terminal.  
Pin numbers refer to the DIP.  
13, 14, 21, 22, 23 & 24) . . . . . . . . . . . . . . . . . . . . . . -0.4 to 6V  
Error Amp Output Current, Source or Sink (pin 5). . . . . . . . 2mA  
IVFO Current (pin 7). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA  
Comparator Output Current (pin 15) . . . . . . . . . . . . . . . . . . 5mA  
Refer to Packaging Section of Databook for thermal  
limitations and considerations of packages.  
BLOCK DIAGRAM  
10/93  

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