ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC LED DRIVER RGLTR PWM 7DIP
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tube
- Type：DC DC Regulator
- Topology：Step-Down (Buck)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：9V
- Voltage - Supply (Max)：35V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：400kHz
- Dimming：Analog, PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 105°C
- Mounting Type：Through Hole
- Package / Case：8-DIP (0.300", 7.62mm), 7 Leads
- Supplier Device Package：7-DIP
- Grade：-
- Qualification：-
Download product information
Overview
The BM531Q11-Z is a single-channel white LED driver IC designed for large LCD backlight applications. It utilizes a buck topology with quasi-resonant control to achieve high efficiency. The device features an integrated 250V MOSFET and operates within an input voltage range of 9V to 35V. It supports adjustable output voltage and offers switching frequencies up to 400kHz. The component is housed in a DIP-7 package and functions reliably across a temperature range of -40°C to +105°C.
Feature Summary
- Built-in 250V耐压 MOSFET for flexible power design
- Quasi-resonant switching mode for high efficiency
- Supports PWM and ADIM dimming operations
- Includes under-voltage protection and leading-edge blanking
Applications
- White LED drivers for large LCD panels
- Backlight power supply circuits
- Buck-type DC-DC converter designs
Procurement Notes
Verify the specific ordering suffix 'Z' corresponds to the tube packaging configuration as indicated in distributor catalogs. Confirm RoHS compliance status matches current regulatory requirements for your region. Ensure the DIP-7AK package dimensions align with your PCB footprint constraints before finalizing procurement orders.
Selection Notes
Select this component when designing LED drivers requiring high input voltage tolerance without external high-voltage switches. The integrated 250V MOSFET simplifies bill of materials and reduces board space. Consider the quasi-resonant operation for improved efficiency at light loads compared to fixed-frequency controllers.
Part Context
This part belongs to Rohm's series of LED lighting driver ICs optimized for display backlights. It represents a specialized solution for buck conversion in lighting applications, distinct from general-purpose regulators by its focus on LED current control and high-voltage integration.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs if considering alternative manufacturers.
