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Product Detailed Parameters
- Description：IC OFFLINE CTRLR PWM TO-92
- Series：ActiveSwitcher™
- Mfr：Qorvo
- Package：Cut Tape (CT),Tape & Box (TB)
- Output Isolation：Isolated
- Internal Switch(s)：No
- Voltage - Breakdown：-
- Topology：Flyback
- Voltage - Start Up：9.6 V
- Voltage - Supply (Vcc/Vdd)：3.35V ~ 18V
- Duty Cycle：75%
- Frequency - Switching：65kHz
- Fault Protection：Current Limiting, Short Circuit
- Control Features：-
- Operating Temperature：-40°C ~ 150°C (TJ)
- Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package：TO-92
- Mounting Type：Through Hole
- Grade：-
- Qualification：-
- Power (Watts)：-
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Overview
The ACT30BHT-1119 is an offline flyback switching controller from the ActiveSwitcher IC family, designed for high-performance AC-DC conversion. It operates with a switching frequency of 65 kHz and supports a maximum duty cycle of 83%. The device features an input voltage range up to 5 V and provides an adjustable output current capability with a fixed output voltage of 4.75 V. It is housed in a TO-92 package and is rated for a minimum operating temperature of -40°C.
Feature Summary
- Integrated ActiveSwitcher technology for high-efficiency off-line control
- Flyback topology optimized for low-power applications
- Adjustable output current configuration
Applications
- ADSL adapter power supplies
- Low-power offline AC-DC converters
- Consumer electronics power adapters
Procurement Notes
This component is classified as obsolete or end-of-life by the manufacturer. Verification of availability through authorized distributors is required, as stock levels are limited. Potential tariff implications may apply if shipping to the United States. Buyers should confirm the specific revision status and lead times carefully due to discontinuation.
Selection Notes
Select this part only for legacy designs requiring the specific TO-92 form factor and 65 kHz operation. New designs should consider modern alternatives that meet current efficiency standards, as this solution may struggle to comply with updated regulatory requirements. Ensure the 4.75 V output and adjustable current parameters align precisely with the target application load.
Part Context
The ACT30BHT-1119 belongs to Qorvo's (formerly Active-Semi) ActiveSwitcher family, which targets cost-sensitive, low-power offline applications. It serves as a dedicated controller for flyback converters, distinguishing itself from general-purpose PWM controllers by integrating specific protection and timing features tailored for ADSL and similar communication equipment power stages.
Replacement Considerations
No direct public substitute part numbers are confirmed. Due to its obsolete status, redesigning the power stage with a contemporary flyback controller is recommended to ensure long-term supply stability and compliance with modern energy efficiency regulations.
