BD7692FJ-E2 - BCM PFC Controller 410-580kHz | ROHM
MPN: BD7692FJ-E2 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.8937 | $0.89 |
| 10 | $0.8937 | $8.94 |
| 100 | $0.8937 | $89.37 |
| 500 | $0.8937 | $446.85 |
| 1,000 | $0.8937 | $893.70 |
BD7692FJ-E2 Overview
A power factor correction controller is a specialized power-management IC that shapes input current in offline AC/DC equipment so the upstream power system draws less reactive current. In the broader hierarchy, a PFC controller sits between the mains input and the primary-side switching converter. Boundary conduction mode allows the power stage to transition between continuous and discontinuous inductor-current operation, reducing conduction loss at light load while retaining controlled switching behavior.
The BD7692FJ is intended for products requiring power-factor improvement. Its three verified switching-frequency choices provide design flexibility when balancing transformer size, electromagnetic interference, switching loss, and output-ripple requirements. The manufacturer specifically highlights ZCD implemented through resistance detection, avoiding the need for an auxiliary winding in the power stage. This can simplify transformer construction and reduce the number of sensing connections when the sensing arrangement is implemented according to the datasheet.
The BD7692FJ-E2 is supplied in an 8-SOP-J package. Its operating electrical limits, protection thresholds, control-loop details, current-sense range, startup behavior, and exact pin functions are not present in the supplied verification snippets; those values must be confirmed from the ROHM datasheet before layout or production release. The product is therefore best treated as a controller for a carefully validated primary-side PFC stage rather than as a complete power converter.
Typical applications include AC/DC power supplies, industrial power systems, and equipment with upstream universal-input requirements where active PFC is needed. In a practical design, the controller drives an external boost switch and receives current or voltage information from the power stage. The verified 410 kHz, 450 kHz, and 580 kHz options should be selected according to the magnetics design and EMI constraints.
The key design consideration is validating the complete feedback and protection network rather than relying only on the controller MPN. Check the ROHM application guidance, confirm the current-sense and ZCD implementation, and verify startup, overcurrent, open-loop, and thermal behavior against the manufacturer limits. This page combines verified source links, application context, and engineering selection guidance while leaving unsupported numeric claims explicitly marked as data needed.
Drop-in alternatives for BD7692FJ-E2 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
BD7692FJ
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
BD7692FJ-E2
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.8937 / Unit
View Datasheet →BD7692FJ-TR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
BD7692FJ-T
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
BD7692FJ-E
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
BD7692FJ-E2 Maximum Ratings & Electrical Characteristics
| Product Type | Power Factor Correction Controller IC |
| PFC Topology | Boundary Conduction Mode (BCM) |
| Switching Frequency Option 1 | 410 kHz |
| Switching Frequency Option 2 | 450 kHz |
| Switching Frequency Option 3 | 580 kHz |
| Zero Current Detection | Resistance-based ZCD; auxiliary winding unnecessary |
| Input Supply Type | AC/DC power conversion |
| Package | 8-SOP-J |
| Package Family | SOP-J |
| Mounting Type | Surface mount |
| Package Width | 3.90 mm |
| Package Length | 0.154 inch |
| PFC Control Method | BCM with ZCD |
| RoHS Status | The TTI listing states hazardous-material content is within RoHS Directive 2011/65/EC limits |
BD7692FJ-E2 0.154 inch Pin Configuration Guide
Pin configuration for BD7692FJ-E2 (0.154 inch package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for BD7692FJ-E2.
Refer to the datasheet for full pin configuration.
Typical Applications
BD7692FJ-E2 is suitable for 7 applications: Industrial AC/DC Power Supply, Universal-Input Power Converter, Boost PFC Stage, Power-Supply EMI Reduction, Offline Consumer Power Adapter, Renewable-Power Input Front End, High-Voltage Power Conversion.
Industrial AC/DC Power Supply
The BD7692FJ-E2 fits industrial AC/DC power-supply front ends that require active PFC and need a controller capable of BCM operation. Its verified switching-frequency options are 410 kHz, 450 kHz, and 580 kHz, allowing the power-stage designer to balance inductor size, switching loss, and EMI filtering. ROHM describes resistance-based ZCD and an auxiliary-winding-free arrangement, which can simplify the sensing architecture compared with a design requiring an auxiliary winding. The controller does not provide the complete boost stage, so the final design still needs a properly rated switch, rectifier, inductor, current-sense network, protection circuitry, and safety isolation.
Recommended
Universal-Input Power Converter
BD7692FJ-E2 is applicable to universal-input AC/DC converters where power-factor improvement is needed ahead of a regulated DC output. Its BCM PFC architecture is intended to shape the input current and reduce reactive-current demand from the AC source. The verified 410 kHz, 450 kHz, and 580 kHz frequency choices give the designer several starting points for magnetics and EMI optimization. Because the supplied snippets do not include complete electrical limits, the input range, output power, inductor current, and protection thresholds must be verified in the ROHM datasheet before component values and ratings are selected.
Recommended
Boost PFC Stage
The BD7692FJ-E2 can serve as the controller for an external boost PFC stage in an offline power supply. In BCM, the inductor current changes operating character around the zero-current boundary, and the resistance-based ZCD described by ROHM helps the controller detect that transition. This can support switching-loss reduction and noise reduction while avoiding the need for an auxiliary winding. The controller is only one element of the stage: the boost MOSFET, inductor, current-sense elements, rectifier, capacitors, and fault-protection components must be selected from the complete datasheet and application constraints.
Recommended
Power-Supply EMI Reduction
The BD7692FJ-E2 is relevant to designs where PFC switching behavior contributes to conducted or radiated emissions. Its BCM implementation and ZCD are specifically described by ROHM as helping reduce switching loss and noise, while the three verified frequency choices allow EMI tuning during power-stage development. Frequency selection should be coordinated with inductor characteristics, switch transitions, input-filter design, and the required output-power range. The supplied sources do not provide measured emissions, propagation delay, or a complete EMI test result, so any compliance claim requires an actual conducted- and radiated-emissions test on the finished product.
Recommended
Offline Consumer Power Adapter
BD7692FJ-E2 can be evaluated in an offline consumer power adapter that needs active input power-factor correction. The controller's BCM operation may reduce losses at operating conditions where continuous conduction would otherwise increase current ripple or conduction demand. ROHM's resistance-based ZCD arrangement may also reduce transformer or winding complexity because the manufacturer states that an auxiliary winding is unnecessary. A consumer adapter still requires complete input filtering, surge protection, isolation, output regulation, thermal design, and safety certification. None of those finished-product requirements should be inferred from the controller MPN alone.
Recommended
Renewable-Power Input Front End
BD7692FJ-E2 may be studied for a front end associated with renewable-power or other power-conversion equipment where the input stage needs PFC behavior. The verified BCM and ZCD functions can help the designer manage current transitions and reduce switching-related noise, while the selectable 410 kHz, 450 kHz, and 580 kHz frequencies provide flexibility for system-level optimization. The controller is not itself a renewable-energy converter, and the supplied data does not specify photovoltaic, battery, or grid-interface qualifications. Confirm the actual source characteristics, isolation needs, operating temperature, and protection requirements in the manufacturer documentation.
Recommended
High-Voltage Power Conversion
BD7692FJ-E2 is associated with AC/DC power-factor correction rather than a low-voltage digital regulator, making it relevant to high-voltage primary-side conversion stages. The verified sources identify the device as a PFC controller and provide its 8-SOP-J package, BCM topology, and frequency choices, but do not provide complete voltage ratings or isolation details. Designers must therefore verify absolute maximum voltages, creepage, clearance, surge requirements, and reinforced-insulation architecture before applying the controller to a high-voltage product. The finished design should be reviewed by qualified power-supply and safety engineers.
Recommended
Recommended Products Summary
Engineering reference data for BD7692FJ-E2 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | BD7692FJ | BD7692FJ-E2 | BD7692FJ-TR | BD7692FJ-T | BD7692FJ-E |
|---|---|---|---|---|---|---|
| Package | 8-SOP-J | 8-SOP-J - requires confirmation | 8-SOP-J - same listed MPN | 8-SOP-J - requires confirmation | 8-SOP-J - requires confirmation | 8-SOP-J - requires confirmation |
| Brand | ROHM Semiconductor | ROHM Semiconductor | ROHM Semiconductor | ROHM Semiconductor | ROHM Semiconductor | ROHM Semiconductor |
Key Differentiators
- Boundary-conduction-mode PFC operation (vs Generic continuous-conduction-mode PFC controller)
- Resistance-based ZCD without auxiliary winding (vs PFC design requiring an auxiliary winding)
- Three verified switching-frequency choices (vs Single-frequency PFC controller)
Design Notes
Treat the BD7692FJ-E2 as a controller for an external boost PFC stage, not as a complete power supply. Select the switch, rectifier, inductor, current-sense network, input capacitors, and output capacitors from the actual input range, output power, and fault requirements. The verified switching-frequency choices are 410 kHz, 450 kHz, and 580 kHz, but frequency selection must be coordinated with inductor sizing and EMI filtering. Do not copy a reference design until the complete ROHM datasheet electrical limits have been checked.
Place the current-sense and ZCD-related components close to the controller pins and keep the sensing return path compact to reduce switching-node coupling. The manufacturer describes resistance-based ZCD and no auxiliary winding, but the exact circuit topology and pin names must be taken from the current datasheet. Keep the high-current boost loop physically small, separate gate-drive routing from feedback routing, and provide a controlled ground reference. PCB creepage, clearance, and isolation requirements must be established from the finished product's voltage and safety class.
Use the available 410 kHz, 450 kHz, and 580 kHz options as an EMI and magnetics design variable rather than selecting a frequency solely for efficiency. Switching-node dv/dt, inductor current ripple, input-filter resonances, and conducted emissions are strongly layout- and filter-dependent. Validate the finished unit with the required EMI test setup. The verified sources do not provide measured noise or emissions data, so no compliance result should be inferred from the controller description.
Do not treat the package name as proof of pin compatibility. The supplied data identifies an 8-SOP-J package but does not provide the complete pinout, electrical limits, or protection thresholds. Before schematic capture and PCB release, compare every pin, maximum voltage, current limit, startup behavior, fault response, and thermal rating against the current ROHM datasheet. Also verify the exact suffix and reel quantity, since the supplied sources show the target MPN but do not establish all packaging variants.
Compliance Information
The TTI listing states that hazardous-material content for substances listed in the RoHS Directive is within the limits defined in EU Directive 2011/65/EC and relevant amendments. No REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals evidence was supplied.
