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UC3526A

Features: · Reduced Supply Current· Oscillator Frequency to 600kHz· Precision Band-Gap Reference· 7 to 35V Operation· Dual 200mA Source/Sink Outputs· Minimum Output Cross-Conduction· Double-Pulse Suppression Logic· Under-Voltage Lockout· Programmable Soft-Start· Thermal Shutdown· TTL/CMOS Compatib...

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SeekIC No. : 004535553 Detail

UC3526A: Features: · Reduced Supply Current· Oscillator Frequency to 600kHz· Precision Band-Gap Reference· 7 to 35V Operation· Dual 200mA Source/Sink Outputs· Minimum Output Cross-Conduction· Double-Pulse Su...

UC3526A Data Sheet

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Part Number:
UC3526A
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

· Reduced Supply Current
· Oscillator Frequency to 600kHz
· Precision Band-Gap Reference
· 7 to 35V Operation
· Dual 200mA Source/Sink Outputs
· Minimum Output Cross-Conduction
· Double-Pulse Suppression Logic
· Under-Voltage Lockout
· Programmable Soft-Start
· Thermal Shutdown
· TTL/CMOS Compatible Logic Ports
· 5 Volt Operation (VIN = VC = VREF = 5.0V)


Pinout

Connection Diagram


Specifications

Input Voltage (+VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . +40V
Collector Supply Voltage (+VC) . . . . . . . . . . . . . . . . . . . . +40V
Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . .  -0.3V to +5.5V
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to +VIN
Source/Sink Load Current (each output) . . . . . . . . . . . . 200mA
Reference Load Current. . . . . . . . . . . . . . . . . . . . . . . . . . 50mA
Logic Sink Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15mA
Power Dissipation at TA = +25°C (Note 2) . . . . . . .  . 1000mW
Power Dissipation at TC = +25°C (Note 2) . . . . . . . .. 3000mW
Operating Junction Temperature . . . . . . . . . . . . . .. . .  +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.


Description

The UC1526A Series are improved-performance pulse-width modulator circuits intended for direct replacement of equivalent non- "A" versions in all applications. Higher frequency operation has been enhanced by several significant improvements including: a more accurate oscillator with less minimum dead time, reduced circuit delays (particularly in current limiting), and an improved output stage with negligible cross-conduction current. Additional improvements include the incorporation of a precision, band-gap reference generator, reduced overall supply current, and the addition of thermal shutdown protection.

Along with these improvements, the UC1526A Series retains the protective features of under-voltage lockout, soft-start, digital current limiting, double pulse suppression logic, and adjustable deadtime. For ease of interfacing, all digital control ports are TTL compatible with active low logic.

Five volt (5V) operation is possible for "logic level" applications by connecting VIN, VC and VREF to a precision 5V input supply. Consult factory for additional information.




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