Vendor: TES Electronic Solutions Category: DC/DC Converter

30V 0.5A Hysteretic Buck LED Driver

30V 0.5A Hysteretic Buck LED Driver with High-Side and Low-Side Current Sensing on X-FAB XT018-0.18µm BCD-on-SOI CMOS

Contact Provider Request Datasheet
X-FAB 180nm XT018 Available on request View all specifications

Overview

The TS_LEDDRV_30V0A5_X8 is a non-synchronous hysteretic Buck LED driver. It operates with an input voltage range of 20 VDC to 30 VDC. A constant output current is set by hysteretic control using a high-side current sense resistor and a low-side drain current sensing circuit.

It supports hybrid PWM and hysteretic dimming with an approximate 1000:1 resolution and up to 500 mA LED current at 18 V LED string voltage. PWM dimming is applied for currents up to 102.5 mA. Further current increase is realized by hysteretic control.

A low-side NMOS switch with typically 400 mΩ is integrated. The circuit provides a fault detection mechanism at the FET`s DRAIN pin that flags shorts against the rails. The operating switching frequency can range between 150 kHz and 4 MHz depending on the input voltage, buck inductance and LED current range.

The TS_LEDDRV_30V0A5_X8 also supports a direct NMOS switch control mode that can be used in various applications such as switching external constant current regulators.

A low voltage power supply of 3.3 V and bandgap voltage of 1.246 V are needed for operation.

Technology: X-FAB XT018-0.18µm BCD-on-SOI CMOS

OPERATING CONDITIONS

Parameters Values
Junction Temperature -40 ºC to +150 ºC
Input Voltage 20 V to 30 V
Supply Voltage 3.3 V
Bandgap Voltage 1.246 V
LED Voltage up to 18 V
Buck Inductor 36 µH

SPECIFICATION

Parameters Values
Maximum Average LED Current 500 mA
Minimum Average LED Current 0.513 mA
Integrated MOSFET RDS_ON 0.4 Ω to 0.8 Ω
Operating Current on Supply Voltage 2 mA to 6 mA
Switching Frequency 150 kHz to 4 MHz

Block Diagram

LED Driver Layout View

Silicon Options

Foundry Node Process Maturity
X-FAB 180nm XT018 Available on request

Specifications

Identity

Part Number
TS_LEDDRV_30V0A5_X8
Vendor
TES Electronic Solutions
Type
Silicon IP

Files

Product Sheet Download

Note: some files may require an NDA depending on provider policy.

Provider

Contact TES Electronic Solutions

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Frequently asked questions about DC-DC Converter IP cores

What is 30V 0.5A Hysteretic Buck LED Driver?

30V 0.5A Hysteretic Buck LED Driver is a DC/DC Converter IP core from TES Electronic Solutions listed on Semi IP Hub. It is listed with support for x-fab Available on request.

How should engineers evaluate this DC/DC Converter?

Engineers should review the overview, key features, supported foundries and nodes, maturity, deliverables, and provider information before shortlisting this DC/DC Converter IP.

Can this semiconductor IP be compared with similar products?

Yes. Buyers can compare this product with similar semiconductor IP cores or IP families based on category, provider, process options, and structured technical specifications.

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