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STMicroelectronics STGB20N45LZAG
- Part No.:
- STGB20N45LZAG
- Manufacturer:
- STMicroelectronics
- Category:
- Single IGBTs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
STGB20N45LZAG.pdf
- Description:
- POWER TRANSISTORS
- Quantity:
- Payment:
- Shipping:
Inventory:865
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Product details
Overview
STGB20N45LZAG from STMicroelectronics is an AEC-Q101-qualified automotive-grade IGBT optimized for ignition coil driver circuits, featuring 450 V internal collector-emitter clamping, 300 mJ self-clamping inductive switching energy at TJ = 25 °C, 1.25 V typical VCE(sat) at 10 A/175 °C, integrated 120 Ω gate resistor and 16 kΩ gate-emitter resistor, and logic-level 4 V gate drive compatibility.
For engineers reviewing the STGB20N45LZAG datasheet, STGB20N45LZAG pinout, STGB20N45LZAG application, or STGB20N45LZAG equivalent, this device is selected for high-reliability automotive ignition systems requiring robust SCIS performance, ESD-protected gate input, and minimal external component count in space-constrained D²PAK (TO-263) packages.
Technical Context
This IGBT employs ST's PowerMESH technology with built-in gate-collector voltage clamping and ESD protection on both gate and gate-emitter terminals. Its 450 V VCES(clamped) rating and 170 mJ ESCIS energy at 150 °C enable reliable operation under harsh transient conditions in 12 V/24 V automotive battery environments.
The device integrates two on-die resistors: RG = 120 Ω for controlled turn-on/off timing and RGE = 11–22 kΩ to suppress gate oscillation and improve noise immunity. Dynamic parameters include 8.4 μs td(off) and 5.5 μs tf at 300 V/10 A, with dV/dt capability up to 165 V/μs at 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCES(clamped) | 450 V - Internally clamped collector-emitter breakdown enables elimination of external snubber networks in ignition coil drivers. |
| VCE(sat) | 1.25 V typ. @ 10 A, 4.5 V VGE, 175 °C - Low conduction loss reduces thermal stress and improves system efficiency at full load. |
| ESCIS | 300 mJ @ TJ = 25 °C - High self-clamping energy withstands repeated inductive kickback without failure during spark generation. |
| RG | 120 Ω - Integrated gate resistor simplifies PCB layout and ensures consistent switching behavior across temperature and unit variance. |
| RGE | 16 kΩ typ. - On-chip gate-emitter resistor provides stable biasing and suppresses parasitic oscillation in high-dI/dt ignition transients. |
| VGE(th) | 1.3–2.1 V - Logic-level threshold allows direct drive from automotive microcontrollers without level-shifting circuitry. |
| TJ Range | −40 to 175 °C - Full specification over automotive under-hood temperature range supports engine compartment mounting. |
Pinout & Package
D²PAK (TO-263) package with exposed metal tab serving as collector terminal; thermally enhanced plastic surface-mount housing rated for 150 W total power dissipation at TC = 25 °C and 1 °C/W junction-to-case thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Logic-level input terminal with integrated 120 Ω series resistor and ESD protection; accepts 4 V drive directly from MCU GPIO. |
| 2 (C / TAB) | Collector / Heat Sink Pad | Main high-voltage current path and primary thermal interface; electrically connected to exposed metal tab for low-inductance, low-Rth mounting. |
| 3 (E) | Emitter | Return path for load current; referenced to ground in low-side coil driver configuration; includes integrated 16 kΩ gate-emitter resistor. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, humidity, and mechanical shock per JESD47. |
| Self-clamping inductive switching | 300 mJ energy handling at 25 °C eliminates need for external clamp diodes or TVS in ignition primary circuits. |
| Integrated gate resistors | 120 Ω gate series + 16 kΩ gate-emitter shunt reduce BOM count and improve EMI robustness in high-dI/dt coil switching. |
| ESD-protected gate input | 4 kV HBM / 2 kV CDM rating enables safe handling and eliminates external gate protection components. |
| Logic-level gate drive | 1.3–2.1 V threshold and 4 V compatible drive allow direct interfacing with 3.3 V/5 V automotive MCUs without gate drivers. |
Applications
| Gasoline Engine Ignition Coil Driver | Diesel Glow Plug Controller |
|---|---|
|
Use Scenario: High-voltage pulse generation to trigger spark plugs in 4–12 cylinder gasoline engines with variable dwell time control. IC Role / Device Role / Timing Role: Low-side switch controlling primary winding current; handles repetitive 300–400 V inductive flyback with 10–50 A peak currents. Use Value: 300 mJ SCIS energy and 175 °C max TJ ensure reliable spark delivery across cold start to full-load thermal conditions. |
Use Scenario: PWM-controlled current regulation for ceramic glow plugs during diesel engine pre-heat and post-heat cycles. IC Role / Device Role / Timing Role: Precision on/off switch managing 12 V/24 V supply to resistive heating elements with fast turn-off to limit overshoot. Use Value: 1.25 V VCE(sat) minimizes power loss during extended 10–30 s heating phases, reducing thermal derating requirements. |
| Electric Power Steering (EPS) Motor Phase Switch | Automotive HVAC Blower Motor Driver |
|
Use Scenario: High-current phase leg switching in brushless EPS motor inverters operating in confined under-hood enclosures. IC Role / Device Role / Timing Role: Half-bridge low-side switch handling 30–50 A pulsed loads with strict EMI and short-circuit immunity requirements. Use Value: Gate-collector clamping and integrated RG/RGE suppress voltage spikes and ringing during commutation transients. |
Use Scenario: Speed-controlled DC blower motor in climate control systems with fan speeds ranging from 20% to 100% duty cycle. IC Role / Device Role / Timing Role: Single-ended switch modulating motor voltage via PWM at 10–20 kHz; operates continuously at elevated ambient temperatures. Use Value: −40 to 175 °C TJ range and 1 °C/W Rthj-case support sustained operation without thermal throttling in dashboard-mounted modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar IGBT ignition driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STGD20N45LZAG | DPAK (TO-252) package; higher Rthj-amb = 100 °C/W vs. 62.5 °C/W for D²PAK; identical electrical specs. | Lower power density; suitable for lower-duty-cycle or forced-air-cooled ignition modules where board space is constrained. | Select when footprint size is prioritized over thermal performance and peak power handling. |
| IXGH20N45A3 | Non-automotive grade; no AEC-Q101 qualification; 400 V VCES; no integrated RG/RGE; requires external gate protection. | Limited to non-safety-critical industrial coil drivers; lacks ESD hardening and automotive temperature validation. | Use only in cost-sensitive, non-automotive applications where qualification and integration are not required. |
Compared with STGD20N45LZAG, STGB20N45LZAG delivers superior thermal performance and higher continuous current capability in D²PAK; versus IXGH20N45A3, it adds automotive qualification, integrated resistors, and enhanced SCIS robustness-critical for OEM ignition systems.
Availability
STGB20N45LZAG is available at Aetrix Electronics and suitable for automotive ignition systems, diesel glow plug controllers, electric power steering motor drives, and HVAC blower motor applications requiring stable component supply across multi-year vehicle production lifecycles.
Supply support for STGB20N45LZAG 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, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.
This device belongs to ST's Automotive Power Discrete product line, engineered specifically for high-reliability, high-energy switching in engine management and chassis control systems where functional safety and long-term stability are mandatory.
FAQ
What is the maximum continuous collector current rating for STGB20N45LZAG at 100 °C case temperature?
The device is rated for 25 A continuous collector current at TC = 100 °C with VGE = 4 V, as specified in Table 1 of DS11362 Rev 9. This rating assumes proper heatsinking to maintain case temperature ≤100 °C and accounts for thermal derating beyond 25 °C ambient.
Does STGB20N45LZAG require an external gate resistor for automotive ignition use?
No. The device integrates a 120 Ω gate resistor (RG) and a 16 kΩ gate-emitter resistor (RGE) on-die, eliminating the need for external gate network components in standard ignition coil driver topologies per ST's application guidance in AN4771.
How does the 300 mJ SCIS energy rating translate to real-world ignition coil operation?
At 300 mJ, the device safely absorbs the stored inductive energy (½·L·I²) from a typical 5–8 mH ignition coil charged to 8–10 A, enabling ≥100,000 spark events per hour without degradation-validated per AEC-Q101 stress testing protocols.
Can STGB20N45LZAG be used in a high-side switching configuration?
No. Pinout and internal construction designate the exposed tab as collector (C), and the device is optimized for low-side switching. High-side use would require level-shifted gate drive and violates the recommended application circuit in Figure 16 of DS11362, which shows emitter-grounded topology.
STGB20N45LZAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- IGBT Type:
- -
- Voltage - Collector Emitter Breakdown (Max):
- 450 V
- Current - Collector (Ic) (Max):
- 25 A
- Current - Collector Pulsed (Icm):
- 50 A
- Vce(on) (Max) @ Vge, Ic:
- 1.25V @ 4V, 6A
- Power - Max:
- 150 W
- Switching Energy:
- -
- Input Type:
- Logic
- Gate Charge:
- 26 nC
- Td (on/off) @ 25°C:
- 1.1µs/4.6µs
- Test Condition:
- 300V, 10A, 1kOhm, 5V
- Reverse Recovery Time (trr):
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263 (D2PAK)
STGB20N45LZAG FAQ
1.How can I place an order for STGB20N45LZAG through Aetrix?
Please submit a Request for Quotation (RFQ) for STGB20N45LZAG 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 STGB20N45LZAG reliable?
The price and inventory of STGB20N45LZAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STGB20N45LZAG is usually 5 days.
3.What payment methods are accepted for STGB20N45LZAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STGB20N45LZAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STGB20N45LZAG?
STGB20N45LZAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STGB20N45LZAG 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 STGB20N45LZAG?
For technical support, including STGB20N45LZAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STGB20N45LZAG requirements.
6.How does Aetrix verify that STGB20N45LZAG is sourced from the original manufacturer or authorized distributors?
All STGB20N45LZAG 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 STGB20N45LZAG meets industry standards.
7.What is the process for return or replacement of STGB20N45LZAG?
All STGB20N45LZAG units undergo pre-shipment inspection (PSI). If there is an issue with STGB20N45LZAG, 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 STGB20N45LZAG part is unused and in its original packaging.
Return procedure for STGB20N45LZAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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