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PDF Si82396 Data sheet ( Hoja de datos )
| Número de pieza | Si82396 | |
| Descripción | 4.0A ISODrivers | |
| Fabricantes | Silicon Laboratories | |
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Hay una vista previa y un enlace de descarga de Si82396 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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Si8239x Data Sheet
4.0 A ISODrivers with 2.5 V VDDI and Safety Features
The Si8239x combines two isolated drivers with either an independent input control or a
single input into a single package for high power applications. All drivers operate with a
2.5 V input VDD and a maximum drive supply voltage of 24 V.
The Si8239x isolators are ideal for driving power MOSFETs and IGBTs used in a wide
variety of switched power and motor control applications. These drivers utilize Silicon
Laboratories' proprietary silicon isolation technology, supporting up to 5 kVRMS with-
stand voltage. This technology enables high CMTI (100 kV/µs), lower prop delays and
skew, reduced variation with temperature and age and tighter part-to-part matching.
It also offers some unique features such as an output UVLO fault detection and feed-
back, and automatic shutdown for both drivers, an EN (active high) instead of a DIS (ac-
tive low) pin, a safe delayed start-up time of 1 ms, fail-safe drivers with default low in
case of VDDI power-down, and dead time programmability. The Si8239x family offers
longer service life and dramatically higher reliability compared to opto-coupled gate driv-
ers.
Applications
• Power Delivery Systems
• Motor Control Systems
• Isolated DC-DC Power Supplies
• Lighting Control Systems
• Solar and Industrial Inverters
Safety Approvals (Pending)
• UL 1577 recognized
• Up to 5000 Vrms for 1 minute
• CSA component notice 5A approval
• IEC 60950-1
• VDE certification conformity
• VDE 0884-10
• EN 60950-1 (reinforced insulation)
• CQC certification approval
• GB4943.1
KEY FEATURES
• Two isolated drivers in one package
• Up to 5 kVRMS isolation
• Up to 1500 VDC peak driver-to-driver
differential voltage
• Enhanced output UVLO safety
• Status feedback to controller
• Both outputs drive low on UVLO
• EN pin for enhanced safety
• Extended VDDI: 2.5 V – 5.5 V
• PWM and dual driver versions
• 4.0 A peak output
• High electromagnetic immunity
• Extended start-up time (1ms) for safe
initialization sequence
• 30 ns propagation delay
• Transient immunity: 100 kV/µs
• Programmable dead time
• 10–200 ns
• 40–400 ns
• Deglitch option for filtering noise
• Wide operating range
• –40 to +125 °C
• RoHS-compliant packages
• SOIC-16 wide body
• SOIC-16 narrow body
• AEC-Q100 qualified
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Rev. 0.9
1 page  
Si8239x Data Sheet
System Overview
2.1 Typical Performance Characteristics (4.0 Amp)
The typical performance characteristics depicted in the following figures are for information purposes only. Refer to the Electrical Char-
acteristics table for actual specification limits.
Figure 2.3. Rise/Fall Time vs. Supply Voltage
Figure 2.4. Propagation Delay vs. Supply Voltage
Figure 2.5. Rise/Fall Time vs. Load
Figure 2.6. Propagation Delay vs. Load
Figure 2.7. Propagation Delay vs. Temperature
Figure 2.8. Supply Current vs. Supply Voltage
Figure 2.9. Supply Current vs. Supply Voltage
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Figure 2.10. Supply Current vs. Temperature
Rev. 0.9 | 4
5 Page 
Si8239x Data Sheet
System Overview
2.6.2 Undervoltage Lockout
Undervoltage Lockout (UVLO) is provided to prevent erroneous operation during device startup and shutdown or when VDD is below its
specified operating circuits range. The input (control) side, Driver A and Driver B, each have their own undervoltage lockout monitors.
The Si8239x input side enters UVLO when VDDI < VDDIUV–, and exits UVLO when VDDI > VDDIUV+. The driver outputs, VOA and
VOB, remain low when the input side of the Si8239x is in UVLO and their respective VDD supply (VDDA, VDDB) is within tolerance.
Each driver output can enter or exit UVLO independently for the Si82394/5/6/7/8 products. For example, VOA unconditionally enters
UVLO when VDDA falls below VDDAUV– and exits UVLO when VDDA rises above VDDAUV+. For the Si82390/1 products, when ei-
ther VDDA or VDDB falls under VDDxUV–, this information is fed back through the isolation barrier to the input side logic which forces
VOB or VOA to be driven low respectively under these conditions. If the application is driving a transformer for an isolated power con-
verter, for example, this behavior is useful to prevent flux imbalances in the transformer. Please note that this feature implies that it can
only be implemented when the VDDA and VDDB power supplies are independent from each other. If a bootstrap circuit is used for
Si82390/1, it will prevent the IC from powering up. Please do not use the Si82390/1 in conjunction with a bootstrap circuit for driver
power.
Figure 2.16. Si82391/6/8 Device Behavior during Normal Operation and Shutdown
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Rev. 0.9 | 10
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet Si82396.PDF ] | |
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