- 制造厂商：TI
- 产品类别：电源管理
- 技术类目：电源开关 - 电子保险丝和热插拔控制器
- 功能描述：具有低静态电流和可调节限流功能的 7V 至 15V 热插拔控制器
- 点击这里打开及下载UCC2915的技术文档资料
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The UCC3915 programmable hot swap power manager provides complete power-management, hot-swap capability, and circuit breaker functions. The only external component required to operate the device, other than power supply bypassing, is the fault-timing capacitor, CT. All control and housekeeping functions are integrated, and externally programmable. These include the fault current level, maximum output sourcing current, maximum fault time, and startup delay. In the event of a constant fault, the internal fixed 2% duty cycle ratio limits average output power.
The internal 4-bit DAC allows programming of the fault-level current from 0 A to 3 A with 0.25-A resolution. The IMAX control pin sets the maximum-sourcing current to 1 A above the trip level or to a full 4 A of output current for fast output capacitor charging.
When the output current is below the fault level, the output MOSFET is switched on with a nominal ON resistance of 0.15 
. When the output current exceeds the fault level, but is less than the maximum-sourcing level, the output remains switched on, but the fault timer starts, charging CT. Once CT charges to a preset threshold, the switch is turned off, and remains off for 50 times the programmed fault time. When the output current reaches the maximum sourcing level, the MOSFET transitions from a switch to a constant current source.
The UCC3915 can be put into sleep mode, drawing only 100 uA of supply current. Other features include an open-drain fault-output indicator, thermal shutdown, undervoltage lockout, 7-V to 15-V operation, and low-thermal resistance SOIC and TSSOP power packages.
- Integrated 0.15- Power MOSFET
- 7-V to 15-V Operation
- Digital-Programmable Current Limit from 0 A to 3 A
- 100-uA ICC When Disabled
- Programmable On Time
- Programmable Start Delay
- Fixed 2% Duty Cycle
- Thermal Shutdown
- Fault-Output Indicator
- Maximum-Output Current Can Be Set to 1 A Above the Programmed-Fault Level or to a Full 4 A
- Power SOIC and TSSOP, Low Thermal Resistance Packaging
- FET
- External
- Ron (Typ) (mOhm)
- 150
- Vin (Min) (V)
- 7
- Vin (Max) (V)
- 15
- Vabsmax_cont (V)
- 15.5
- Current limit (Min) (A)
- 1
- Current limit (Max) (A)
- 4
- Overcurrent response
- Current limiting
- Fault response
- Auto-retry
UCC2915的完整型号有：UCC2915DP，以下是这些产品的关键参数及官网采购报价：
UCC2915DP，工作温度：-40 to 85，封装：SOIC (D)-16，包装数量MPQ：40个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网UCC2915DP的批量USD价格：5.024（1000+）
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