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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR 50MA 20WQFN
- Series：-
- Mfr：Richtek USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Controller
- Topology：Switched Capacitor (Charge Pump)
- Internal Switch(s)：No
- Number of Outputs：2
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：4.5V
- Voltage - Output：6V
- Current - Output / Channel：50mA
- Frequency：250kHz
- Dimming：-
- Applications：General Purpose
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-WFQFN Exposed Pad
- Supplier Device Package：20-WQFN (3x3)
- Grade：-
- Qualification：-
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Overview
The RT9397BFGQW is an LCD driver featuring a charge pump controller with automatic mode transition capabilities. Manufactured by Richtek, this component operates within a supply voltage range of 2.7 V to 5.5 V and supports a maximum clock frequency of 250 kHz. It is housed in a WQFN-20 package and is designed for surface mount installation. The device functions reliably across a temperature range of -40°C to +85°C, with a maximum power dissipation of 3.33 W and a maximum supply current of 50 mA.
Feature Summary
- Integrates a charge pump controller with automatic mode transition functionality
- Supports operation at maximum clock frequencies up to 250 kHz
- Designed for surface mount technology (SMD/SMT) applications
Applications
- LCD panel driving systems
- Charge pump control circuits
- Automotive display interfaces
Procurement Notes
Verify the specific ordering suffix to ensure compatibility with required packaging formats such as cut tape or reel configurations. Confirm that the WQFN-20 package dimensions align with PCB layout constraints. Ensure compliance with RoHS standards and check moisture sensitivity levels prior to assembly processing to maintain component integrity during soldering operations.
Selection Notes
Select this component when an integrated solution for LCD driving and charge pump control is required. Consider the 2.7 V to 5.5 V input range for system voltage compatibility. Evaluate the thermal performance given the 3.33 W power dissipation rating and the -40°C to +85°C operating temperature range to ensure suitability for the intended environmental conditions.
Part Context
This part belongs to the Richtek LCD driver product line, specifically designed for applications requiring efficient voltage boosting and segment driving. The RT9397BFGQW variant utilizes a WQFN-20 package to provide a compact footprint suitable for space-constrained designs. It serves as a specialized driver IC for managing LCD panels with integrated power management features.
Replacement Considerations
Consult official manufacturer cross-reference lists for verified substitute part numbers. Ensure any replacement maintains identical pinout configuration, electrical specifications, and package dimensions to guarantee functional equivalence without requiring board redesign.
