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Product Detailed Parameters
- Description：IC REG CTRLR FWRD CONV 16SSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Transistor Driver
- Function：Step-Up/Step-Down
- Output Configuration：Positive, Isolation Capable
- Topology：Forward Converter
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：6.82V ~ 25V
- Frequency - Switching：100kHz ~ 500kHz
- Duty Cycle (Max)：90%
- Synchronous Rectifier：Yes
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Enable, Frequency Control
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-SSOP (0.154", 3.90mm Width)
- Supplier Device Package：16-SSOP
- Grade：-
- Qualification：-
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Overview
The LT1952EGN-1#PBF is a current mode PWM controller designed for isolated DC/DC converters, specifically supporting forward and flyback topologies. It operates with a supply voltage range of 6.5 V to 25 V and features an adjustable switching frequency from 80 kHz to 560 kHz. The device provides a fixed output drive capability of 2.5 V at 200 mA. It is housed in a 16-pin SSOP package and is rated for operation across an extended temperature range of -40°C to +125°C.
Feature Summary
- Supports forward and flyback converter topologies
- Current mode PWM control architecture
- Adjustable switching frequency range
- Extended industrial temperature rating
Applications
- Isolated DC/DC power supplies
- Forward converter designs
- Flyback converter designs
- Industrial power management systems
Procurement Notes
Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm that the SSOP-16 package matches your PCB footprint requirements. Ensure the input supply voltage remains within the 6.5 V to 25 V operational window during system integration. Check thermal performance limits against the specified -40°C to +125°C operating range for your intended environment.
Selection Notes
Select this component when a current mode controller is required for isolated topologies. The adjustable frequency allows optimization for transformer size and efficiency. The 200 mA output drive is suitable for standard gate drive applications. Consider the SSOP-16 package constraints for board space. Verify compatibility with external MOSFET or transformer specifications.
Part Context
This part belongs to the LT1952 series of switching regulators from Analog Devices. It serves as the control logic for power stages rather than providing direct power output. Related evaluation boards include the DC759A for five-volt outputs and the DC830A for higher current isolated applications using the same core controller technology.
Replacement Considerations
The LT1952EGN#PBF is a non-isolated variant and may not suit isolated designs without circuit modification. Cross-reference datasheets for pinout compatibility if substituting with other forward controllers. Verify switching frequency ranges match existing passive component values.
