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Product Detailed Parameters
- Description：IC OFFLINE SWITCH 6SSOP
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Isolation：Either
- Internal Switch(s)：No
- Voltage - Breakdown：-
- Topology：Flyback
- Voltage - Start Up：13.5 V
- Voltage - Supply (Vcc/Vdd)：8.5V ~ 26V
- Duty Cycle：75%
- Frequency - Switching：65kHz
- Fault Protection：Current Limiting, Over Load, Over Temperature, Over Voltage
- Control Features：Frequency Control, Soft Start
- Operating Temperature：-40°C ~ 85°C
- Package / Case：SOT-23-6
- Supplier Device Package：6-SSOP
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
- Power (Watts)：-
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Overview
The BD7673AG-GTR is a PWM control type DC/DC converter IC designed for AC/DC drivers. It supports both insulated and non-insulated topologies with an external switching MOSFET. Key electrical parameters include a minimum input voltage of 8.5V, maximum input voltage of 25V, and a fixed switching frequency of 65kHz. The device operates within a temperature range of -40°C to 85°C and features peak current mode control for per-cycle current limiting. It includes built-in soft start, burst operation for light loads, and various protection mechanisms such as VCC overvoltage protection and thermal shutdown.
Feature Summary
- Supports flexible power supply design through external switching MOSFET integration
- Provides high bandwidth and transient response via peak current control method
- Integrates comprehensive protection functions including per-cycle overcurrent limit and VCC OVP
- Features built-in frequency hopping function to assist in achieving low EMI
Applications
- AC/DC driver systems
- Insulated power converter designs
- Non-insulated low-power converter applications
Procurement Notes
Verify the specific suffix GTR corresponds to the taping packaging format containing 3000 units per reel. Confirm RoHS compliance status and ensure the SSOP6 package dimensions match the required PCB layout constraints. Check for any specific handling requirements associated with the surface mount technology package.
Selection Notes
Select this component when designing AC/DC converters requiring peak current mode control for superior transient performance. It is suitable for applications needing integrated protection features like soft start and overcurrent limiting without external complex circuitry. Consider the fixed 65kHz switching frequency and frequency hopping capabilities for EMI management in compact designs.
Part Context
This part belongs to the BD7673 series of PWM controller type DC/DC converter ICs. It shares functional similarities with models like BD7672BG and BD7679G, offering comparable protection features and switching frequencies. The primary distinction lies in specific pin configurations or minor parameter variations within the same family of AC/DC driver controllers.
Replacement Considerations
Potential substitutes include BD7672BG and BD7679G. Verify compatibility regarding operating temperature ranges and protection latch/auto-restart behaviors before substitution.
