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STMicroelectronics E-L6569D
- Part No.:
- E-L6569D
- Manufacturer:
- STMicroelectronics
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
E-L6569D.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,118
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Product details
Overview
E-L6569D 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, 1.25µs typ. dead time, ±50V/ns dV/dt immunity, internal bootstrap diode structure, and programmable oscillator frequency up to 200kHz.
For engineers reviewing the E-L6569D datasheet, E-L6569D pinout, E-L6569D application, or E-L6569D equivalent, this page delivers verified technical context, real-world timing behavior, bootstrap SOA constraints, gate drive current specs under load, and validated alternatives for CFL/LED driver and half-bridge power stage designs.
Technical Context
The L6569D implements a patented internal bootstrap charge pump synchronized with the low-side driver (LVG), eliminating the need for an external bootstrap diode. Its BCD off-line technology enables direct operation from 10–500V VS supply with 15.6V zener clamping and 150µA startup current.
Oscillator frequency is set via external RF and CF components (e.g., 12kΩ + 1nF → 60kHz), while UVLO hysteresis (1V typ.) and dV/dt immunity ensure robust operation in noisy high-voltage environments. The device supports both self-oscillating and externally driven modes via CF pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VS Supply Range | 10 V to 500 V - supports universal input AC-DC front-ends without auxiliary winding |
| High-Side Floating Voltage | Up to 618 V - enables direct connection to 600V rail in bridge topologies |
| Driver Output Current | Sink: 270 mA / Source: 170 mA - sufficient to drive 10 nC gate charge at >100 kHz |
| Oscillator Frequency | 200 kHz max - programmable via RF/CF; 60 kHz typical with 12kΩ/1nF |
| Dead Time | 1.25 µs typ. - prevents shoot-through in half-bridge power stages |
| dV/dt Immunity | ±50 V/ns - ensures reliable level-shifting under fast-switching transients |
| Startup Current | 150 µA max - enables direct startup from bulk capacitor without auxiliary supply |
Pinout & Package
Package: SO8 (Small Outline Integrated Circuit, 8-pin, 1.27 mm pitch), RoHS-compliant, thermal resistance Rth j-amb = 150 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VS | High-side supply input | Clamped at 15.6 V; powers internal bias and level shifter; must be decoupled near pin |
| 2 RF | Oscillator timing resistor node | Provides current path to external RF; can also drive secondary L6569 in full-bridge setups |
| 3 CF | Oscillator timing capacitor / external sync input | Capacitor sets frequency; logic-low forces shutdown (low-side on, high-side off) |
| 4 GND | Power and signal reference | Common return for low-side driver and oscillator circuitry; separate from power ground paths |
| 5 LVG | Low-side gate driver output | Drives N-MOSFET source; 170 mA source / 270 mA sink capability; synchronizes bootstrap charging |
| 6 OUT | High-side floating reference | Connects to source of high-side MOSFET; defines return for HVG and BOOT voltage swing |
| 7 HVG | High-side gate driver output | Drives N-MOSFET gate referenced to OUT; same current capability as LVG |
| 8 BOOT | Floating supply for high-side driver | Charged via internal LDMOS bootstrap switch (RON = 120 Ω typ.); replaces external diode |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Bootstrap Driver | Patented internal LDMOS + charge pump eliminates external diode and reduces PCB area by ≥30% |
| Programmable Oscillator | Frequency set via RF/CF; supports 200 kHz max and precise tuning across temperature (±5% variation) |
| Robust Level Shifting | 1.25 µs dead time + ±50 V/ns dV/dt immunity prevents false triggering during high dv/dt transitions |
| Low-Power Startup | 150 µA start-up current enables direct boot from bulk capacitor-no auxiliary winding required |
| UVLO with Hysteresis | Turn-on at 9 V, turn-off at 8 V (1 V hysteresis) prevents oscillation near threshold during brownout |
Applications
| Compact Fluorescent Lamp (CFL) Ballast | LED Driver with Resonant Topology |
|---|---|
|
Use Scenario: 18W Sylvania Deluxe T/E lamp driven from 110/220V AC mains using voltage-doubler configuration. IC Role / Device Role / Timing Role: Half-bridge driver with self-oscillating control; provides gate signals with fixed dead time and preheat PTC synchronization. Use Value: Enables single-chip ballast design with no microcontroller; internal oscillator eliminates timing IC; bootstrap integration reduces BOM count by 1 diode and 1 capacitor. |
Use Scenario: Constant-current LED driver using LLC resonant converter for commercial lighting. IC Role / Device Role / Timing Role: High-voltage half-bridge gate driver; generates complementary outputs with 1.25 µs dead time; supports external frequency override via CF pin. Use Value: Delivers stable switching up to 200 kHz with minimal gate drive loss; dV/dt immunity ensures reliability in high-frequency resonant tanks with steep voltage edges. |
| AC-DC Adapter with PFC + Half-Bridge | Industrial Motor Control Module |
|
Use Scenario: 65W adapter combining boost PFC stage and isolated half-bridge DC-DC stage. IC Role / Device Role / Timing Role: Secondary-side half-bridge driver; receives isolated PWM signal or operates in self-oscillating mode for simplicity. Use Value: 600V high-side capability allows direct use after 400V PFC bus; low quiescent current (700 µA) improves light-load efficiency. |
Use Scenario: Low-power BLDC motor driver for HVAC blowers or fan modules operating from 300V DC bus. IC Role / Device Role / Timing Role: Gate driver for N-channel half-bridge; supports external logic control and bootstrap-based high-side supply. Use Value: Internal UVLO and SOA protection prevent latch-up during motor stall; 150 µA startup enables direct bus-powered initialization. |
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 internal oscillator clamp; requires external Zener; no integrated bootstrap diode; lower dV/dt immunity (±25 V/ns) | Lacks programmable oscillator; needs external RC network and bootstrap diode; less suitable for space-constrained CFL designs | Prefer when cost sensitivity outweighs board area and BOM reduction goals |
| UCC3732X | Only low-side driver; no high-side or level-shifting capability; 15V max supply; not rated for >200V operation | Requires external high-side driver or bootstrap circuit; unsuitable for direct 600V half-bridge use | Select only for low-voltage half-bridge variants where VS ≤ 20V and isolation is handled externally |
Compared with IR2153D and UCC3732X, E-L6569D uniquely integrates oscillator, bootstrap driver, and 600V-rated level shifting-reducing component count by ≥4 parts and enabling compact, self-contained half-bridge control without auxiliary supplies or discrete protection networks.
Availability
E-L6569D is available at Aetrix Electronics and suitable for compact fluorescent lamp ballasts, resonant LED drivers, AC-DC adapters, and industrial motor control modules requiring stable component supply, long-lifecycle support, and consistent parametric performance across temperature and voltage extremes.
Supply support for E-L6569D 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, delivering silicon solutions for automotive, industrial, power, and analog markets since 1987.
E-L6569D belongs to ST's legacy high-voltage analog driver product line, engineered specifically for cost-sensitive, high-reliability AC-DC and lighting applications where integration, startup simplicity, and ruggedness are critical.
FAQ
What is the maximum recommended operating frequency for E-L6569D?
The datasheet specifies a maximum oscillator frequency of 200 kHz. At 60 kHz (typical with 12 kΩ/1 nF), propagation delay and dead time remain stable across temperature. Operation above 150 kHz increases bootstrap stress and requires careful SOA validation per Figure 7 in the datasheet-especially at high junction temperatures (>105°C).
Can E-L6569D drive IGBTs directly?
Yes-E-L6569D is explicitly qualified to drive N-channel IGBTs, with 270 mA sink and 170 mA source capability sufficient for gate charges up to ~15 nC at 100 kHz. However, IGBT tail current handling requires external snubbers; the IC does not include desaturation detection or soft shutdown.
How does the internal bootstrap driver differ from a discrete diode solution?
The internal bootstrap uses a patented lateral DMOS switch (RON = 120 Ω typ.) driven by a synchronized charge pump, replacing the external diode and reducing conduction loss and reverse recovery noise. Unlike diodes, it avoids leakage during high-side conduction and enables zero-voltage switching compatibility when properly timed.
Is E-L6569D pin-compatible with L6569AD or L6569A?
E-L6569D shares identical pinout and package with L6569A and L6569AD, but differs in startup sequence: L6569D follows the L6569 (not L6569A) behavior-i.e., low-side driver activates immediately upon VS crossing UVLO threshold, initiating bootstrap charging without delay. This affects preheat timing in lamp applications.
E-L6569D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
E-L6569D FAQ
1.How can I place an order for E-L6569D through Aetrix?
Please submit a Request for Quotation (RFQ) for E-L6569D 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-L6569D reliable?
The price and inventory of E-L6569D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for E-L6569D is usually 5 days.
3.What payment methods are accepted for E-L6569D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for E-L6569D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for E-L6569D?
E-L6569D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your E-L6569D 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-L6569D?
For technical support, including E-L6569D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your E-L6569D requirements.
6.How does Aetrix verify that E-L6569D is sourced from the original manufacturer or authorized distributors?
All E-L6569D 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-L6569D meets industry standards.
7.What is the process for return or replacement of E-L6569D?
All E-L6569D units undergo pre-shipment inspection (PSI). If there is an issue with E-L6569D, 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-L6569D part is unused and in its original packaging.
Return procedure for E-L6569D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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