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SG2524N
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Product Detailed Parameters
- Description：IC REG CTRLR MULT TOPOLOGY 16DIP
- Series：-
- Mfr：Texas Instruments
- Package：Bulk,Tube
- Output Type：Transistor Driver
- Function：Step-Up, Step-Down, Step-Up/Step-Down
- Output Configuration：Positive, Isolation Capable
- Topology：Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull
- Number of Outputs：2
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：8V ~ 40V
- Frequency - Switching：450kHz
- Duty Cycle (Max)：45%
- Synchronous Rectifier：No
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Current Limit, Frequency Control
- Operating Temperature：-25°C ~ 85°C (TA)
- Mounting Type：Through Hole
- Package / Case：16-DIP (0.300", 7.62mm)
- Supplier Device Package：16-PDIP
- Grade：-
- Qualification：-
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Overview
The SG2524N is a voltage-mode PWM controller from Texas Instruments, designed for regulating power supplies and switching regulators. It operates within an input supply voltage range of 8 V to 40 V and supports switching frequencies up to 300 kHz. The device features dual uncommitted outputs capable of sourcing or sinking current, with a maximum duty cycle of 45%. It includes a precision 1% reference voltage, internal soft-start, and undervoltage lockout with hysteresis. Packaged in a 16-pin PDIP, it functions across commercial temperature ranges.
Feature Summary
- Integrates complete PWM power control circuitry on a single monolithic chip
- Features dual uncommitted totem-pole output drivers for flexible topology implementation
- Includes built-in soft-start circuitry controlled by a single external timing capacitor
- Provides pulse-by-pulse shutdown via the PWM latch for immediate turn-off
Applications
- Regulating switching power supplies
- Inverter designs
- Push-pull converter topologies
- Single-ended forward converters
Procurement Notes
Verify the specific manufacturer source, as STMicroelectronics also produces the SG3524N variant. Confirm the package type matches the required through-hole installation. Ensure the operating temperature range aligns with the commercial specification limits defined in the datasheet.
Selection Notes
Select this component for applications requiring a robust voltage-mode controller with integrated protection features. The dual uncommitted outputs allow for both single-ended and push-pull configurations. Consider the 300 kHz frequency limit when designing transformer and inductor components.
Part Context
Part of the SG3524 series of regulating pulse-width modulators. This family is engineered to reduce external parts count while offering improved performance for various switching power supply designs. The SG2524N represents the commercial grade version of this widely used controller architecture.
Replacement Considerations
- SG3524N
- KA7524
- MC34063
FAQ
What is the maximum duty cycle for the SG2524N?
The maximum duty cycle is limited to 45%.
Does the SG2524N support push-pull applications?
Yes, the dual uncommitted outputs are suitable for both single-ended and push-pull applications.
