Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Gate Drivers

STMicroelectronics E-L6569

Name: E-L6569
Brand: STMicroelectronics
SKU: E-L6569
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: E-L6569

Manufacturer:: STMicroelectronics

Category:: Gate Drivers

Package:: 8-DIP (0.300", 7.62mm)

Datasheet:: E-L6569.pdf

Description:: IC GATE DRVR HALF-BRIDG 8MINIDIP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,235

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

L6569 from STMicroelectronics is a high-voltage half-bridge gate driver IC with integrated oscillator, designed for driving external N-channel MOSFETs and IGBTs in resonant lamp ballast and SMPS applications. It features 600V high-side rail capability, internal bootstrap diode structure, 15.6V Zener clamp on VS, 1.25µs typical dead time, and programmable oscillator frequency up to 200kHz.

For engineers reviewing the L6569 datasheet, L6569 pinout, L6569 application, or L6569 equivalent, key selection criteria include dV/dt immunity (±50V/ns), sink/source drive strength (270mA/170mA), startup current (150µA), UVLO hysteresis (1V typ), and bootstrap LDMOS R_ON (120Ω).

Technical Context

The L6569 integrates a self-contained oscillator whose frequency is set by external R_F and C_F, supporting 57–200kHz operation. Its level-shifting architecture enables high-side drive referenced to floating V_BOOT, with internal charge pump synchronization to LVG for bootstrap capacitor charging.

Under-voltage lockout (UVLO) operates with turn-on threshold of 9V (typ) and 1V hysteresis, while the patented internal bootstrap LDMOS replaces external diodes and delivers controlled charging via low-side MOSFET conduction timing (T_C = 1.1·R_F·C_F).

Key Specifications

Parameter	Value and Actual Design Meaning
High-side rail voltage	600V max - supports direct connection to rectified mains in ballast designs
Oscillator frequency range	57–200 kHz - programmable via R_F/C_F; enables tuning for lamp preheat and run phases
Driver output current	Sink 270mA / Source 170mA - sufficient to drive gate capacitance of STD2NB50-1 MOSFETs at 60kHz
Dead time	1.25 µs typ - prevents shoot-through in half-bridge power stage
dV/dt immunity	±50 V/ns - ensures robust operation during fast switching transients in high-noise lamp circuits
Startup current	150 µA max - enables low-power auxiliary supply design without dedicated start-up circuitry
VS clamp voltage	15.6 V typ - protects internal bias regulator from overvoltage during transient events

Pinout & Package

Available in SO8 (small outline 8-pin) and Minidip packages. SO8 meets JEDEC MS-012 standards (D = 4.9mm, E = 6.0mm, e = 1.27mm).

Pin/Terminal	Circuit Role	Design Meaning
1 VS	Low-side supply input	Internally clamped at 15.6V; powers bias regulator and logic; UVLO monitoring point
2 RF	Oscillator timing resistor	Provides current to external R_F; can also drive secondary L6569 in full-bridge configuration
3 CF	Oscillator timing capacitor	External C_F sets frequency with R_F; accepts external logic signal for synchronous control
4 GND	Ground reference	Common return for low-side logic and driver stages; separate from power ground in layout
5 LVG	Low-side gate driver output	Drives gate of lower MOSFET; 170mA source / 270mA sink; synchronizes bootstrap charging
6 OUT	High-side floating reference	Source node of upper MOSFET; serves as return for HVG and bootstrap capacitor bottom plate
7 HVG	High-side gate driver output	Drives gate of upper MOSFET; referenced to OUT; same drive strength as LVG
8 BOOT	Floating supply for high-side driver	Charged via internal LDMOS bootstrap switch (R_ON = 120Ω); replaces external diode

Key Features

Feature	Design Value
Integrated oscillator with R/C programming	Eliminates need for external clock generator; enables precise frequency control across temperature (±5% variation)
Internal bootstrap LDMOS	Replaces discrete bootstrap diode; reduces BOM count and improves reliability in CFL ballasts
Programmable dead time	Fixed 1.25µs ensures safe cross-conduction margin regardless of external MOSFET gate charge
High dV/dt immunity	±50V/ns tolerance allows stable operation even with fast-switching IGBTs in noisy EMI environments
Low startup current	150µA enables direct connection to bulk capacitor via high-value resistor-no auxiliary winding needed

Applications

Compact Fluorescent Lamp Ballast

Resonant LLC Half-Bridge Converter

Use Scenario: 18W Sylvania Deluxe T/E lamp driven from universal 110/220V AC input using voltage-doubler topology.

IC Role / Device Role / Timing Role: Half-bridge driver with integrated oscillator provides gate timing, dead time, and bootstrap charging for Q1/Q2 MOSFETs.

Use Value: Internal bootstrap LDMOS eliminates external diode; programmable f_OSC enables optimized preheat (50kHz) and run (60kHz) frequencies.

Use Scenario: 150W industrial power supply operating in zero-voltage switching (ZVS) mode with variable load.

IC Role / Device Role / Timing Role: High-side/low-side gate driver with dV/dt immunity ensures reliable switching under wide input voltage and load transients.

Use Value: 600V high-side rail and ±50V/ns dV/dt rating prevent false triggering during high dv/dt transitions at light loads.

Induction Heating Half-Bridge

DC-AC Inverter for LED Driver

Use Scenario: 2kW induction cooker using resonant tank with parallel LC topology and 20–50kHz operation.

IC Role / Device Role / Timing Role: Gate driver controls complementary MOSFET pair; internal oscillator synchronized to zero-current detection.

Use Value: 270mA sink current ensures fast turn-off of high-C_iss IGBTs; 1.25µs dead time avoids overlap during high-frequency switching.

Use Scenario: 40W constant-current LED driver with dimming interface and isolated feedback.

IC Role / Device Role / Timing Role: Drives half-bridge switches in resonant converter; UVLO hysteresis maintains stable restart after brownout.

Use Value: 150µA startup current allows direct bulk-capacitor powering; 15.6V VS clamp protects against surge-induced regulator failure.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage half-bridge driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IR2153(D)(PbF)	No integrated oscillator; requires external RC or crystal; no internal bootstrap diode; 600V rating	Needs external timing components and bootstrap diode; less integrated but wider temp range (–40°C to 125°C)	Choose when oscillator flexibility or extended temperature operation is prioritized over integration
IRS21844(S)PbF	Higher drive current (600mA sink/290mA source); no integrated oscillator; 600V rating; built-in undervoltage protection	Requires external oscillator; better suited for high-speed/high-C_iss MOSFETs; lacks programmable frequency	Prefer for high-frequency (>100kHz) SMPS where gate charge demands exceed L6569's capability

Compared with IR2153 and IRS21844, the L6569 offers unique oscillator integration and patented bootstrap LDMOS-reducing component count in cost-sensitive lamp ballasts-but trades off drive strength and external timing flexibility required in high-performance SMPS.

Availability

L6569 is available at Aetrix Electronics and suitable for compact fluorescent lamp ballasts, resonant LLC converters, induction heating systems, and DC-AC LED inverters requiring stable component supply and long-lifecycle support.

Supply support for L6569 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in power management, analog, and automotive ICs with vertical manufacturing capabilities.

The L6569 belongs to ST's AC-DC and lighting control product line, engineered specifically for cost-effective, high-reliability electronic ballast and resonant converter applications in consumer and industrial lighting.

FAQ

What is the difference between L6569 and L6569A?

The L6569A modifies the bootstrap startup sequence: it holds the low-side MOSFET OFF until VS reaches the UVLO turn-on threshold (9V), then initiates bootstrap charging. The standard L6569 begins charging immediately upon power application, making L6569A more robust against erratic startup conditions in high-impedance supplies.

Can L6569 drive IGBTs directly?

Yes-L6569's 270mA sink and 170mA source capability meets gate drive requirements for common 500V/2A IGBTs like STGP10NC60HD. Its 1.25µs dead time and ±50V/ns dV/dt immunity ensure safe operation in hard-switched IGBT half-bridges up to 60kHz.

How is the oscillator frequency calculated?

f_OSC = 1 / (1.3863 × R_F × C_F). For example, R_F = 12kΩ and C_F = 1nF yields ~60kHz. Frequency varies ±5% over temperature (–40°C to 125°C), as confirmed in Figure 5 of the datasheet.

Does L6569 require an external bootstrap diode?

No-the L6569 integrates a patented high-voltage LDMOS bootstrap switch (R_ON = 120Ω typ) that replaces the external diode. This structure is synchronized to LVG and eliminates reverse recovery losses and diode-related reliability concerns in CFL ballasts.

E-L6569 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-DIP (0.300", 7.62mm)

Packaging:: Tube

Product Status:: Obsolete

Programmable:: Not Verified

Driven Configuration:: Half-Bridge

Channel Type:: Synchronous

Number of Drivers:: 2

Gate Type:: IGBT, N-Channel MOSFET

Voltage - Supply:: 10V ~ 16.6V

Logic Voltage - VIL, VIH:: -

Current - Peak Output (Source, Sink):: 170mA, 270mA

Input Type:: RC Input Circuit

High Side Voltage - Max (Bootstrap):: 600 V

Rise / Fall Time (Typ):: -

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: 8-Mini DIP

E-L6569 FAQ

1.How can I place an order for E-L6569 through Aetrix?

Please submit a Request for Quotation (RFQ) for E-L6569 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for E-L6569 reliable?

The price and inventory of E-L6569 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for E-L6569 is usually 5 days.

3.What payment methods are accepted for E-L6569?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for E-L6569 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for E-L6569?

E-L6569 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your E-L6569 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for E-L6569?

For technical support, including E-L6569 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your E-L6569 requirements.

6.How does Aetrix verify that E-L6569 is sourced from the original manufacturer or authorized distributors?

All E-L6569 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that E-L6569 meets industry standards.

7.What is the process for return or replacement of E-L6569?

All E-L6569 units undergo pre-shipment inspection (PSI). If there is an issue with E-L6569, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The E-L6569 part is unused and in its original packaging.

Return procedure for E-L6569:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…