Anterwell Technology Ltd.

          Anterwell Technology Ltd.

 

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UC3525ADW Circuit Board Chips , Integrated Circuit Chip Program Memory

Good quality Programmable IC Chips for sales
Good quality Programmable IC Chips for sales
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UC3525ADW Circuit Board Chips , Integrated Circuit Chip Program Memory

China UC3525ADW  Circuit Board Chips , Integrated Circuit Chip Program Memory supplier

Large Image :  UC3525ADW Circuit Board Chips , Integrated Circuit Chip Program Memory

Product Details:

Place of Origin: PHILIPPINES
Brand Name: TI
Certification: Original Factory Pack
Model Number: UC3525ADW

Payment & Shipping Terms:

Minimum Order Quantity: 10pcs
Price: Negotiation
Packaging Details: REEL
Delivery Time: 1 Day
Payment Terms: T/T, Western Union,PayPal
Supply Ability: 4390PCS
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Detailed Product Description
Temperature Range: -65 To +150 °C Payment Term: T/T, Paypal, Western Union
Voltage: 40V Current: 5mA
Package: SOP-16 Factory Package: REEL

UC1525A/27A UC2525A/27A UC3525A/27A 
Regulating Pulse Width Modulators

Features

• 8 to 35V Operation

• 5.1V Reference Trimmed to ±1%

• 100Hz to 500kHz Oscillator Range

• Separate Oscillator Sync Terminal

• Adjustable Deadtime Control

• Internal Soft-Start

• Pulse-by-Pulse Shutdown

• Input Undervoltage Lockout with Hysteresis

• Latching PWM to Prevent Multiple Pulses

• Dual Source/Sink Output Drivers

 

APPLICATIONS

 

• Applications Using DSPs, Microcontrollers, or Microprocessors

• Wireless Communication Systems

• Portable/Battery-Powered Equipment

• Programmable Controls

• Intelligent Instruments

• Industrial Equipment

• Notebook/Desktop Computers

• Automotive Systems

 

DESCRIPTION

        

          The UC1525A/1527A series of pulse width modulator integrated circuits are designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies.

          The on-chip +5.1V reference is trimmed to ±1% and the input common-mode range of the error amplifier includes the reference voltage, eliminating external resistors.

          A sync input to the oscillator allows multiple units to be slaved or a single unit to be synchronized to an external system clock.

          A single resistor between the CT and the discharge terminals provides a wide range of dead-time adjustment.

          These devices also feature built-in soft-start circuitry with only an external timing capacitor required. A shutdown terminal controls both the soft-start circuitry and the output stages, providing instantaneous turn off through the PWM latch with pulsed shutdown, as well as soft-start recycle with longer shutdown commands.

          These functions are also controlled by an undervoltage lockout which keeps the outputs off and the soft-start capacitor discharged for sub-normal input voltages.

          This lockout circuitry includes approximately 500mV of hysteresis for jitter-free operation. Another feature of these PWM circuits is a latch following the comparator.

          Once a PWM pulse has been terminated for any reason, the outputs will remain off for the duration of the period.

          The latch is reset with each clock pulse. The output stages are totem-pole designs capable of sourcing or sinking in excess of 200mA.

          The UC1525A output stage features NOR logic, giving a LOW output for an OFF state. The UC1527A utilizes OR logic which results in a HIGH output level when OFF

      

ABSOLUTE MAXIMUM RATINGS(1)

Supply Voltage, (+VIN). . . . . . . . . . . . . . . . . . . . +40V

Collector Supply Voltage (VC)...................... +40V

Logic Inputs ............................ –0.3V to +5.5V

Analog Inputs ............................ –0.3V to +VIN

Output Current, Source or Sink ................... 500mA

Reference Output Current ........................ 50mA

Oscillator Charging Current . . . . . . . . . . . . . . . . . . . . . . . . 5mA

Power Dissipation at TA = +25°C (Note 2).......... 1000mW

Power Dissipation at TC = +25°C (Note 2) ......... 2000mW

Operating Junction Temperature .......... –55°C to +150°C

Storage Temperature Range ............. –65°C to +150°C

Lead Temperature (Soldering, 10 seconds) ......... +300°C

Note 1: Values beyond which damage may occur.

Note 2: Consult packaging Section of Databook for thermal limitations and considerations of package.

 
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UC3525ADW  Circuit Board Chips , Integrated Circuit Chip Program Memory

Contact Details
Anterwell Technology Ltd.

Contact Person: Miss. Sharon Yang

Tel: 86-755-61169882

Fax: 86-755-613169859

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