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UCC3915DP Electronic IC Chips PROGRAMMABLE HOT SWAP POWER MANAGER

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ChongMing Group (HK) Int'l Co., Ltd

City: shenzhen

Country/Region:china

Tel:86-755-88367702

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Ms.Doris Guo
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UCC3915DP Electronic IC Chips PROGRAMMABLE HOT SWAP POWER MANAGER

Model Number UCC3915DP
Certification new & original
Place of Origin original factory
Minimum Order Quantity 10pcs
Price Negotiate
Payment Terms T/T, Western Union, Paypal
Supply Ability 7500pcs
Delivery Time 1 day
Packaging Details Please contact me for details
Description Hot Swap Controller 1 Channel General Purpose 16-SOIC
VIN 15.5 V
VOUT – VIN 0.3 V
FAULT sink current 50 mA
FAULT voltage –0.3 V to 8 V
TTL input voltage –0.3 to VIN
Storage temperature -65°C to 150°C
Detailed Product Description

 

UCC2915, UCC3915

15-V PROGRAMMABLE HOT SWAP POWER MANAGER

 

• Integrated 0.15-Ω Power MOSFET

• 7-V to 15-V Operation

• Digital-Programmable Current Limit from 0 A to 3 A

• 100-µA 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

 

description

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 Ω. 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 µA 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.

 

block diagram

 

 

absolute maximum ratings over operating free-air temperature (unless otherwise noted)†

VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15.5 V

VOUT – VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.3 V

FAULT sink current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA

FAULT voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 8 V

Output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Self limiting

TTL input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 to VIN

Storage temperature, Tstg  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C

Junction temperature, TJ  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  –55°C to 150°C

Lead temperature (soldering, 10 sec.)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C


† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

‡ Currents are positive into, negative out of the specified terminal. Consult Packaging Section of the Interface Products Data Book (TI Literature Number SLUD002) for thermal limitations and considerations of packages.

 

 

 

 

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Product Tags: electronic integrated circuit   linear integrated circuits  
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