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UCC3916DP PDF预览

UCC3916DP

更新时间: 2024-11-20 12:05:19
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
7页 379K
描述
SCSI Termpower Manager

UCC3916DP 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP, SOP8,.25针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:0.77可调阈值:NO
模拟集成电路 - 其他类型:POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码:R-PDSO-G8
JESD-609代码:e4长度:4.9 mm
湿度敏感等级:2信道数量:1
功能数量:1端子数量:8
最高工作温度:70 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP8,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
电源:5 V认证状态:Not Qualified
座面最大高度:1.75 mm子类别:Power Management Circuits
最大供电电流 (Isup):2 mA最大供电电压 (Vsup):6 V
最小供电电压 (Vsup):4 V标称供电电压 (Vsup):5 V
表面贴装:YES技术:BICMOS
温度等级:COMMERCIAL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阈值电压标称:1.5
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3.9 mm
Base Number Matches:1

UCC3916DP 数据手册

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UCC3916  
SCSI Termpower Manager  
FEATURES  
DESCRIPTION  
Integrated Circuit Breaker Function  
The UCC3916 SCSI termpower manager provides complete power man-  
agement, hot swap capability, and circuit breaker functions with minimal ex-  
ternal components. For most applications, the only external component  
required to operate the device, other than supply bypassing, is a timing ca-  
pacitor which sets the fault time.  
Integrated 0.2 Power FET  
SCSI, SCSI-2, SCSI-3 Compliant  
1µA ICC When Disabled  
The current trip level is internally set at 1.65A, and the maximum current  
level is also internally programmed for 2A. While the output current is below  
the trip level of 1.65A, the internal power MOSFET is switched on at a nom-  
inal 220m. When the output current exceeds the trip level but remains  
less than the maximum current level, the MOSFET remains switched on,  
but the fault timer starts charging CT. Once the fault time is reached, the cir-  
cuit will shut off for a time which equates to a 3% duty cycle. Finally, when  
the output current reaches the maximum current level, the MOSFET transi-  
tions from a switch to a constant current source.  
Programmable On Time  
Accurate 1.65A Trip Current and  
2.0A Max Current  
Fixed 3% Duty Cycle  
Uni-Directional Switch  
Thermal Shutdown  
The UCC3916 is designed for uni-directional current flow, emulating a diode  
in series with the power MOSFET.  
The UCC3916 can be put in a sleep mode, drawing only 1µA of supply cur-  
rent.  
Other features include thermal shutdown and low thermal resistance Small  
Outline Power package.  
BLOCK DIAGRAM  
VIN  
1
4V TO 6V  
50mV  
REVERSE VOLTAGE  
COMPARATOR  
OUTPUT  
CHARGE  
PUMP  
MAXIMUM  
CURRENT  
LEVEL  
CURRENT SENSE  
H=OPEN  
POWER  
FET  
2A  
LINEAR  
CURRENT  
AMPLIFIER  
CURRENT  
TRIP LEVEL  
1.65A  
ON TIME CONTROL  
3% DUTY CYCLE  
OVER CURRENT  
COMPARATOR  
8
OUTPUT  
THERMAL  
SHUTDOWN  
1.5V  
+
INTERNAL  
BIAS  
2
3
6
7
4
5
GND GND GND GND  
4 HEATSINK PINS  
CT  
SHTDWN  
UDG-99172  
SLUS206A - JANUARY 2000  

UCC3916DP 替代型号

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