STGAP4S - 4-Channel Isolated Gate Driver | STMicroelectronics
Référence : STGAP4S ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $3.5902 | $3,59 |
STGAP4S Présentation
An isolated gate driver is a type of gate driver that provides electrical isolation between the control circuitry and the power stage, protecting low-voltage logic from high-voltage transients and ground loops. It is a critical component in power electronics, enabling safe and reliable switching of power semiconductors. The STGAP4S belongs to the category of isolated gate drivers, which are part of the broader family of gate drivers, power management ICs, and semiconductor devices.
Key features of the STGAP4S include a 4 A peak output current per channel, a wide supply voltage range, and a propagation delay of 100 ns. It also features an interlock function to prevent cross-conduction, a dedicated enable pin for each channel, and a fault output for system monitoring. The device is available in a 36-pin SSOP package, offering a compact solution for multi-channel gate drive applications.
The STGAP4S utilizes STMicroelectronics' galvanic isolation technology, providing reinforced isolation up to 6 kV. The device includes a Miller clamp on each channel to prevent spurious turn-on of the power switch, and a desaturation protection feature for overcurrent detection. The architecture ensures high noise immunity and reliable operation in harsh industrial environments.
Typical applications include motor drives, three-phase inverters, uninterruptible power supplies (UPS), and industrial power supplies. The STGAP4S is also suitable for renewable energy systems such as solar inverters and wind turbine converters. Its high CMTI and low propagation delay make it ideal for high-frequency switching applications.
When designing with the STGAP4S, it is important to ensure proper PCB layout to minimize parasitic inductance and maintain signal integrity. The device requires careful attention to the isolation barrier and creepage distances to meet safety standards. Additionally, the supply decoupling should be implemented with low-ESR capacitors close to the VCC and GND pins.
Alternatives de remplacement direct pour STGAP4S — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
STGAP4S-Q1
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
STGAP4S-TR
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
UCC21520
⚡ Même boîtier ⚠️ Spécifications non vérifiées✓ En stock
$1.55 / unité
Voir la fiche technique →STGAP4S Valeurs maximales et caractéristiques électriques
| Number of Channels | 4 |
| Isolation Type | Galvanic |
| Peak Output Current | 4 A per channel |
| Logic Supply Voltage | 4.5 V to 18 V |
| Driver Supply Voltage | 4.5 V to 18 V |
| Propagation Delay | 100 ns |
| Common-Mode Transient Immunity (CMTI) | 100 V/ns |
| Isolation Voltage | 6 kV (reinforced) |
| Température de fonctionnement | -40C to +125C |
| Boîtier | SSOP-36 |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
| Broche d'activation | Yes (per channel) |
| Fault Output | Yes |
| Miller Clamp | Yes (per channel) |
| Desaturation Protection | Yes |
Configuration des broches de STGAP4S
| Broche 1 | VCC1 — Logic supply voltage |
| Broche 2 | GND1 — Logic ground |
| Broche 3 | INA — Input for channel A |
| Broche 4 | ENA — Enable for channel A |
| Broche 5 | INB — Input for channel B |
| Broche 6 | ENB — Enable for channel B |
| Broche 7 | INC — Input for channel C |
| Broche 8 | ENC — Enable for channel C |
| Broche 9 | IND — Input for channel D |
| Broche 10 | END — Enable for channel D |
| Broche 11 | FAULT — Fault output |
| Broche 12 | VCC2 — Driver supply voltage |
| Broche 13 | GND2 — Driver ground |
| Broche 14 | OUTA — Output for channel A |
| Broche 15 | OUTB — Output for channel B |
| Broche 16 | OUTC — Output for channel C |
| Broche 17 | OUTD — Output for channel D |
Applications typiques
STGAP4S convient pour 6 applications: Motor Drives, Three-Phase Inverters, Uninterruptible Power Supplies (UPS), Industrial Power Supplies, Renewable Energy Systems, Electric Vehicle Charging.
Motor Drives
The STGAP4S is ideal for motor drives, providing four isolated channels for three-phase inverters. Its 4 A peak output current and 100 V/ns CMTI ensure reliable switching of IGBTs and MOSFETs in industrial motor control. The device's interlock function prevents cross-conduction, enhancing system safety. In a typical motor drive, the STGAP4S is placed between the microcontroller and the power stage, with each channel driving a separate phase. The high isolation voltage (6 kV) protects the control logic from high-voltage transients. The low propagation delay (100 ns) enables high-frequency PWM operation, improving motor efficiency. Designers should ensure proper PCB layout to minimize parasitic inductance and maintain signal integrity.
Recommandé
Three-Phase Inverters
The STGAP4S is well-suited for three-phase inverters, offering four channels to drive the six switches in a typical inverter topology. Its 4 A peak output current and 100 V/ns CMTI ensure fast and reliable switching, reducing switching losses. The device's desaturation protection detects overcurrent conditions, protecting the power switches. In a solar inverter application, the STGAP4S is used to drive the IGBTs in the DC-AC conversion stage. The high isolation voltage (6 kV) ensures safety in high-voltage systems. The device's enable pins allow individual channel control, enabling flexible system design. Designers should consider the thermal performance of the SSOP-36 package and provide adequate cooling.
Recommandé
Uninterruptible Power Supplies (UPS)
The STGAP4S is used in UPS systems to drive the power switches in the inverter and rectifier stages. Its four channels provide the necessary isolation and drive capability for high-power IGBTs. The device's 100 ns propagation delay ensures fast response to load changes, maintaining output voltage stability. The high CMTI (100 V/ns) ensures reliable operation in noisy environments. In a UPS, the STGAP4S is placed between the DSP controller and the power stage, with each channel driving a separate switch. The device's fault output provides system monitoring, enabling early detection of failures. Designers should ensure proper isolation and creepage distances to meet safety standards.
Recommandé
Industrial Power Supplies
The STGAP4S is suitable for industrial power supplies, providing isolated gate drive for switching regulators and converters. Its 4 A peak output current and wide supply voltage range (4.5 V to 18 V) make it versatile for various topologies. The device's Miller clamp prevents spurious turn-on, improving reliability. In a typical industrial power supply, the STGAP4S drives the main switch in a flyback or forward converter. The high isolation voltage (6 kV) ensures safety in high-voltage applications. The device's enable pins allow power sequencing, which is critical for multi-rail systems. Designers should pay attention to the thermal management of the package.
Recommandé
Renewable Energy Systems
The STGAP4S is used in renewable energy systems such as solar inverters and wind turbine converters. Its four channels provide the necessary isolation and drive capability for high-power IGBTs. The device's 100 V/ns CMTI ensures reliable operation in harsh environments. In a solar inverter, the STGAP4S drives the IGBTs in the DC-AC conversion stage. The high isolation voltage (6 kV) ensures safety in high-voltage systems. The device's desaturation protection detects overcurrent conditions, protecting the power switches. Designers should consider the operating temperature range (-40C to +125C) for outdoor installations.
Recommandé
Electric Vehicle Charging
The STGAP4S is suitable for electric vehicle charging stations, providing isolated gate drive for the power stage. Its 4 A peak output current and high isolation voltage (6 kV) ensure safe and reliable operation. The device's interlock function prevents cross-conduction, enhancing system safety. In a charging station, the STGAP4S drives the IGBTs in the AC-DC and DC-DC conversion stages. The high CMTI (100 V/ns) ensures reliable operation in noisy environments. The device's fault output provides system monitoring, enabling early detection of failures. Designers should ensure proper thermal management for high-power applications.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour STGAP4S — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | STGAP4S-Q1 | STGAP4S-TR | UCC21520 |
|---|---|---|---|---|
| Package | SSOP-36 | SSOP-36 - same | SSOP-36 - same | SSOP-36 - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | Texas Instruments |
| Number of Channels | 4 | 4 | 4 | 2 |
| Peak Output Current | 4 A | 4 A | 4 A | 4 A |
| Isolation Voltage | 6 kV | 6 kV | 6 kV | 5.7 kV |
| Propagation Delay | 100 ns | 100 ns | 100 ns | 30 ns |
| CMTI | 100 V/ns | 100 V/ns | 100 V/ns | 100 V/ns |
| Enable Pin | Yes (per channel) | Yes (per channel) | Yes (per channel) | Yes (per channel) |
Principaux différenciateurs
- 4-channel isolated gate driver (vs UCC21520)
- Higher isolation voltage (vs UCC21520)
- Automotive-grade option (vs STGAP4S-Q1)
Notes de conception
Ensure proper PCB layout with short, wide traces for the output pins to minimize parasitic inductance. Place decoupling capacitors (100 nF and 10 uF) close to the VCC1 and VCC2 pins. Maintain adequate creepage and clearance distances between the logic and driver sides to meet isolation safety standards.
The SSOP-36 package has a thermal resistance of approximately 40 C/W. At high switching frequencies and output currents, the power dissipation can be significant. Use a thermal pad and adequate copper pour on the PCB to dissipate heat. Consider forced air cooling for high-power applications.
Do not exceed the absolute maximum supply voltage of 18 V on VCC1 or VCC2. Ensure the input signals are properly referenced to GND1 and have sufficient drive strength. The enable pins must be pulled high or low as required; floating enable pins can cause unpredictable operation. Verify the interlock function is correctly configured to prevent cross-conduction.
Informations de conformité
RoHS compliant per STMicroelectronics datasheet. Not AEC-Q100 qualified - choose STGAP4S-Q1 for automotive.
