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Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM TSOT23-6
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tape & Reel (TR)
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：27V
- Current - Output / Channel：350mA (Switch)
- Frequency：1.35MHz
- Dimming：Analog, PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-6 Thin, TSOT-23-6
- Supplier Device Package：TSOT-23-6
- Grade：-
- Qualification：-
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Overview
The ISL97631IHTZ-T7A is a high-efficiency, constant-frequency PWM regulator designed for driving white LEDs in LCD displays. It integrates a boost diode and FET within a compact TSOT-23-6 package. The device operates as a DC-DC step-up converter with a single output capable of delivering up to 350mA switch current. It supports both analog and PWM dimming methods for brightness control. The IC functions within an input voltage range of 2.7V to 5.5V and includes internal protection features.
Feature Summary
- Integrates boost diode and FET for high efficiency
- Supports analog and PWM dimming methods
- Compact TSOT-23-6 surface mount package
Applications
- White LED backlighting for LCD displays
- Portable electronic devices requiring efficient LED drivers
Procurement Notes
Verify the specific suffix T7A against official Renesas documentation to confirm tape-and-reel packaging specifications. Confirm RoHS compliance status through the manufacturer's latest datasheet or environmental declaration. Ensure the component matches the required operating temperature range for your application environment before procurement.
Selection Notes
Select this component when a compact, integrated solution for single-string white LED driving is required. It is suitable for applications needing both analog and digital dimming capabilities. Consider the 350mA output limit and input voltage range during circuit design. Verify availability as older Intersil/Renesas parts may have limited stock or end-of-life status.
Part Context
The ISL97631 series belongs to Renesas Electronics' portfolio of power management ICs, originally developed under the Intersil brand. These regulators are engineered for portable consumer electronics where space and efficiency are critical. The series focuses on providing reliable LED illumination for display backlights in mobile phones and handheld devices.
Replacement Considerations
Check for direct pin-compatible substitutes from Renesas or other manufacturers if this part is discontinued. Verify that any replacement maintains the same TSOT-23-6 footprint and electrical characteristics.
