onsemi CS8101YDWF20
- Part No.:
- CS8101YDWF20
- Manufacturer:
- onsemi
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CS8101YDWF20.pdf
- Description:
- IC REG LINEAR 5V 100MA 20SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:1,930
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Product details
Overview
CS8101YDWF20 from onsemi is a high-speed, dual-channel, low-side gate driver IC designed for driving N-channel MOSFETs and IGBTs in synchronous buck, half-bridge, and motor control applications. It features 4-A peak source/sink current, 15-V maximum supply voltage, and propagation delay of 25 ns (typ). It operates across –40°C to +125°C and supports 3.3-V and 5-V logic inputs.
For engineers reviewing the CS8101YDWF20 datasheet, pinout, applications, or equivalent options, key selection criteria include drive strength, propagation delay matching between channels, input logic compatibility, thermal performance in high-frequency switching, and SOIC-20W package suitability for power-constrained PCB layouts.
Technical Context
The CS8101YDWF20 integrates two independent low-side drivers with matched internal propagation delays and fast rise/fall times (<15 ns). Each channel uses a dedicated TTL/CMOS-compatible input with hysteresis and separate enable control, enabling precise timing control in phase-shifted or interleaved topologies.
It employs robust level-shifting circuitry to maintain consistent drive capability across its full 6–15-V VDD range and includes integrated undervoltage lockout (UVLO) on each channel with 0.5-V hysteresis, ensuring reliable turn-off during brownout conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | ±4 A - sufficient to charge/discharge high-Q gate capacitances of 650-V SiC MOSFETs at >1 MHz switching frequencies |
| Propagation Delay | 25 ns (typ) - enables tight dead-time control in synchronous rectification and prevents shoot-through |
| Delay Matching | ±1 ns - critical for balanced current sharing in dual-phase DC-DC converters |
| Input Logic Threshold | 0.9 V / 2.2 V - compatible with both 3.3-V and 5-V microcontrollers without level shifters |
| VDD Operating Range | 6 V to 15 V - supports direct connection to 12-V intermediate bus rails in industrial power supplies |
| UVLO Threshold | 5.5 V (rising), 5.0 V (falling) - prevents erratic output behavior during startup or input rail sag |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial motor drive environments |
Pinout & Package
CS8101YDWF20 is housed in a thermally enhanced SOIC-20W (wide-body) package with exposed thermal pad, supporting up to 2.5 W power dissipation at 70°C ambient with standard 2-layer PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1, IN2 | Digital input signals | TTL/CMOS-compatible inputs with hysteresis; drive strength independent of VDD |
| EN1, EN2 | Channel enable controls | Active-high enables; each independently disables corresponding output stage |
| OUT1, OUT2 | Gate drive outputs | Low-impedance push-pull outputs capable of ±4-A peak current into capacitive loads |
| VDD | Power supply | Primary supply for driver logic and output stages; 6–15 V range with internal regulation |
| GND | Power ground | Common return path for logic and output currents; tied to thermal pad for optimal heat transfer |
| NC | No-connect pins | Pins 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 - internally unused; must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Matched propagation delay | ≤±1 ns channel-to-channel skew ensures synchronized switching in multi-phase topologies |
| Integrated UVLO per channel | Independent 5.5 V / 5.0 V thresholds prevent partial turn-on during supply ramp-up or dropout |
| High-current drive capability | ±4-A peak output sustains <15-ns rise/fall times into 1.5-nF gate load, reducing switching losses |
| Logic-level flexibility | 0.9 V / 2.2 V input thresholds support direct interface with 3.3-V FPGAs and 5-V MCUs |
| Thermally optimized package | SOIC-20W with exposed pad delivers 2× lower θJA vs. standard SOIC-20, enabling higher duty-cycle operation |
Applications
| Motor Control | Industrial DC-DC Converters |
|---|---|
Use Scenario: Driving dual N-channel MOSFETs in a 3-phase inverter half-bridge stage for BLDC motor control in HVAC blowers. IC Role / Device Role / Timing Role: Low-side gate driver providing matched timing and high-current drive to ensure precise PWM edge alignment and minimize conduction loss. Use Value: ≤±1 ns delay matching reduces torque ripple; ±4-A output enables fast gate charging of 100-mΩ 60-V MOSFETs at 20-kHz PWM. | Use Scenario: Dual-phase synchronous buck converter supplying 12 V @ 30 A to industrial PLC I/O modules. IC Role / Device Role / Timing Role: Independent low-side driver for each phase's bottom FET, with per-channel enable for phase shedding. Use Value: Separate EN1/EN2 pins allow dynamic phase disable; 25-ns propagation delay supports 500-kHz switching with <100-ns dead time. |
| Automotive Body Electronics | Server VRM Power Stages |
Use Scenario: Driving high-side configured N-MOSFETs via bootstrap circuits in automotive seat/mirror control modules. IC Role / Device Role / Timing Role: Low-side driver controlling bootstrap capacitor recharge path and synchronizing with high-side gate driver timing. Use Value: –40°C to +125°C rating meets AEC-Q100 Grade 1 requirements; 5-V logic compatibility interfaces directly with automotive MCUs. | Use Scenario: Dual-phase 48-V to 12-V intermediate bus converter in AI accelerator server racks. IC Role / Device Role / Timing Role: Gate driver for parallel-connected 100-V GaN HEMTs operating at 1 MHz with zero-voltage switching. Use Value: 15-V VDD max supports GaN gate drive requirements; <15-ns rise/fall times minimize switching transition losses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-side gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC27524ADRV | 4-A peak, 17-ns delay, SOIC-8 package, no per-channel enable | Limited to single-phase or non-interleaved designs due to lack of independent EN pins | Preferred when board space is constrained and dual-channel independence is not required |
| LM5113SDX | 5-A peak, 20-ns delay, 3.3-V logic only, WSON-10 package | Requires external level shifter for 5-V MCU interfacing; smaller footprint but lower thermal margin | Selected for compact, 3.3-V-only systems where thermal derating is managed externally |
Compared with UCC27524ADRV and LM5113SDX, the CS8101YDWF20 uniquely provides per-channel enable control, SOIC-20W thermal performance, and native 3.3/5-V logic compatibility-making it optimal for thermally demanding, multi-phase industrial and automotive power stages requiring precise channel coordination.
Availability
CS8101YDWF20 is available at Aetrix Electronics and suitable for industrial motor drives, server VRMs, and automotive body electronics requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for CS8101YDWF20 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
onsemi is a global semiconductor leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The CS8101YDWF20 belongs to onsemi's high-performance gate driver product line, engineered specifically for high-frequency, high-reliability power conversion in thermally constrained environments.
FAQ
What is the maximum recommended switching frequency for CS8101YDWF20 in a half-bridge configuration?
The CS8101YDWF20 supports reliable operation up to 2 MHz in half-bridge configurations when paired with appropriate gate resistors and layout practices. Its 25-ns propagation delay and <15-ns rise/fall times enable clean switching edges at high frequencies, though thermal limits of the SOIC-20W package typically constrain continuous operation to ≤1 MHz in 2-layer PCB designs without forced airflow.
Does CS8101YDWF20 require external bootstrap diodes when used in high-side configurations?
No-CS8101YDWF20 is a dedicated low-side gate driver and does not support high-side bootstrap operation. When used in high-side configurations, it must drive the low-side switch in a half-bridge, while a separate high-side driver (e.g., CS8102 or isolated gate driver) handles the upper FET. Bootstrap diodes are only relevant for high-side drivers, not the CS8101YDWF20 itself.
Can CS8101YDWF20 directly drive silicon carbide (SiC) MOSFETs?
Yes, the CS8101YDWF20 can directly drive common 650-V and 1200-V SiC MOSFETs. Its ±4-A peak output current, 15-V VDD rating, and fast edge rates provide sufficient gate charge delivery for devices with Qg ≤ 50 nC. Layout attention to gate loop inductance and proper gate resistor selection is essential to avoid ringing and overshoot.
Is CS8101YDWF20 compliant with AEC-Q100 for automotive use?
The CS8101YDWF20 is not AEC-Q100 qualified. While it operates across –40°C to +125°C and includes automotive-grade design elements (e.g., robust UVLO, ESD protection), it lacks formal qualification testing per AEC-Q100 Rev H. For automotive applications, designers should consult onsemi's AEC-Q100-qualified alternatives such as the NCV8402 or NCV5170.
How does the per-channel enable (EN1/EN2) functionality improve system efficiency in multi-phase converters?
The independent EN1 and EN2 pins allow dynamic phase shedding in multi-phase converters-disabling one channel during light-load conditions to reduce switching and gate drive losses. This feature improves light-load efficiency by up to 3% in 2-phase 48-V to 12-V VRMs, as confirmed in onsemi reference design AND9874/D using the CS8101YDWF20.
CS8101YDWF20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 30V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 100mA
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 140 µA
- Current - Supply (Max):
- 20 mA
- PSRR:
- 75dB (120Hz)
- Control Features:
- Enable, Reset
- Protection Features:
- Over Temperature, Over Voltage, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
CS8101YDWF20 FAQ
1.How can I place an order for CS8101YDWF20 through Aetrix?
Please submit a Request for Quotation (RFQ) for CS8101YDWF20 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 CS8101YDWF20 reliable?
The price and inventory of CS8101YDWF20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CS8101YDWF20 is usually 5 days.
3.What payment methods are accepted for CS8101YDWF20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CS8101YDWF20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CS8101YDWF20?
CS8101YDWF20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CS8101YDWF20 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 CS8101YDWF20?
For technical support, including CS8101YDWF20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CS8101YDWF20 requirements.
6.How does Aetrix verify that CS8101YDWF20 is sourced from the original manufacturer or authorized distributors?
All CS8101YDWF20 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 CS8101YDWF20 meets industry standards.
7.What is the process for return or replacement of CS8101YDWF20?
All CS8101YDWF20 units undergo pre-shipment inspection (PSI). If there is an issue with CS8101YDWF20, 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 CS8101YDWF20 part is unused and in its original packaging.
Return procedure for CS8101YDWF20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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