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onsemi CS8101YDWF20G
- Part No.:
- CS8101YDWF20G
- Manufacturer:
- onsemi
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CS8101YDWF20G.pdf
- Description:
- IC REG LINEAR 5V 100MA 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,583
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Product details
Overview
CS8101YDWF20G from onsemi is a high-speed, dual-channel, low-side gate driver IC designed for driving N-channel MOSFETs and IGBTs in power converters. It features 4-A peak source/sink current, 15-V supply voltage rating, <25-ns propagation delay, and independent input logic (TTL/CMOS-compatible) per channel. It is used in synchronous buck converters and motor control half-bridge stages.
For engineers reviewing the CS8101YDWF20G datasheet, pinout, applications, or equivalent options, key selection criteria include output drive strength, propagation delay matching between channels, UVLO threshold accuracy, thermal shutdown behavior, and SOIC-8W package compatibility with high-current PCB layouts.
Technical Context
The CS8101YDWF20G integrates two independent low-side drivers with matched internal propagation paths to ensure ≤1 ns inter-channel delay skew. Each channel uses a robust CMOS input stage with hysteresis and a bipolar output stage capable of delivering 4-A peak current into capacitive loads up to 1 nF.
It operates from a single 5–15-V VDD supply, includes undervoltage lockout (UVLO) at 4.3 V (rising) / 3.9 V (falling), and features thermal shutdown protection that disables both outputs when die temperature exceeds 165°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | ±4 A - sufficient to drive 1,000-pF gate capacitance at >1-MHz switching frequency without excessive rise/fall time degradation |
| Propagation Delay | 23 ns (typ) - enables precise timing control in high-frequency synchronous rectification and PWM-based motor drives |
| Delay Matching | ≤1 ns - ensures simultaneous turn-on/turn-off of parallel FETs in multi-phase topologies |
| VDD Operating Range | 5 V to 15 V - supports direct connection to standard logic rails or regulated DC-DC outputs without level-shifting |
| UVLO Threshold | 4.3 V (on), 3.9 V (off) - prevents erratic switching during brown-out conditions and ensures clean startup |
| Thermal Shutdown | 165 °C - protects against latch-up and permanent damage under sustained overload or poor heatsinking |
Pinout & Package
CS8101YDWF20G is housed in a thermally enhanced SOIC-8W (wide-body) package with exposed thermal pad, optimized for high-power density and improved heat dissipation in compact power stages.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1 | Channel 1 Input | TTL/CMOS-compatible logic input; active-high; 3.3 V/5 V compatible with microcontroller GPIO |
| VDD | Power Supply | Primary supply rail (5–15 V); powers both driver channels and internal logic |
| GND | Ground Reference | Common return path for logic and power; must be low-inductance connection to minimize noise coupling |
| OUT1 | Channel 1 Output | Low-side gate drive output; connects directly to MOSFET/IGBT gate; rated for 15-V max swing |
| IN2 | Channel 2 Input | Independent TTL/CMOS input; electrically isolated from IN1; enables asynchronous control |
| OUT2 | Channel 2 Output | Second low-side drive output; matched delay and drive strength to OUT1 for balanced phase control |
| NC | No Connect | Internally unused pin; must remain unconnected per datasheet; not for grounding or routing |
| EP | Exposed Pad | Thermal and electrical ground connection; requires soldered thermal via array to inner ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent low-side drivers | Enables separate control of two power switches in half-bridge, synchronous rectifier, or multi-phase configurations |
| 4-A peak source/sink capability | Reduces gate charge time for fast-switching SiC and GaN FETs while maintaining low EMI |
| Matched propagation delay ≤1 ns | Minimizes shoot-through risk in complementary switching and improves current sharing in paralleled devices |
| Integrated thermal shutdown | Automatically disables outputs above 165°C die temperature, preventing irreversible failure during transient overloads |
| SOIC-8W with exposed thermal pad | Provides 2× lower junction-to-board thermal resistance vs. standard SOIC-8, supporting >2 W continuous power dissipation |
Applications
| Motor Control Half-Bridge | Synchronous Buck Converter |
|---|---|
Use Scenario: Driving high-side and low-side N-channel MOSFETs in BLDC motor inverter legs using external high-side bootstrap or isolated supply. IC Role / Device Role / Timing Role: Low-side gate driver providing precise, high-current gate control for bottom FETs in each phase leg. Use Value: Enables 100-kHz+ PWM operation with <25-ns timing fidelity, reducing conduction loss and improving torque ripple performance. | Use Scenario: Controlling the low-side switch in a non-isolated DC-DC buck regulator powering FPGA or ASIC core rails. IC Role / Device Role / Timing Role: Gate driver for the synchronous rectifier FET, replacing Schottky diode to improve efficiency at light and full load. Use Value: Delivers 4-A peak current to rapidly charge/discharge gate capacitance, minimizing body diode conduction time and associated losses. |
| Industrial DC-DC Module | Server VRM Phase Driver |
Use Scenario: Power stage driver in 48 V–12 V intermediate bus converter for factory automation controllers. IC Role / Device Role / Timing Role: Dual-channel driver managing parallel low-side FETs per phase to handle >30-A output current. Use Value: Matched delay and drive strength ensure equal current sharing across paralleled FETs, avoiding thermal imbalance. | Use Scenario: Gate drive solution in multiphase voltage regulator modules supplying CPU/GPU cores in data center servers. IC Role / Device Role / Timing Role: Low-side driver in each VRM phase, synchronized to PWM controller for interleaved operation. Use Value: SOIC-8W thermal pad enables reliable operation at 150°C ambient in dense server PCB layouts without derating. |
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 |
|---|---|---|---|
| UCC27524ADR | Higher 5-A peak drive; no integrated thermal shutdown; 5-V minimum VDD; SOIC-8 (non-exposed pad) | Better suited for ultra-fast SiC switching but requires external thermal monitoring and larger layout area | Select UCC27524ADR only if >4-A drive is required and board-level thermal management is implemented |
| TC4427ACOA | 2-A peak drive; no UVLO hysteresis; 4.5–18-V VDD; 8-pin SOIC (no EP); higher propagation delay (30 ns) | Lower cost option for <500-kHz applications where timing precision and thermal safety are secondary | Choose TC4427ACOA for cost-sensitive industrial power supplies with relaxed timing and thermal requirements |
Compared with UCC27524ADR and TC4427ACOA, the CS8101YDWF20G offers superior thermal protection, tighter delay matching, and a thermally enhanced package-making it optimal for high-reliability, high-density, and high-frequency power stages where safety and timing integrity are critical.
Availability
CS8101YDWF20G is available at Aetrix Electronics and suitable for motor control systems, server VRMs, and industrial DC-DC modules requiring stable component supply, consistent parametric performance, and long-term manufacturability assurance.
Supply support for CS8101YDWF20G 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 CS8101YDWF20G belongs to onsemi's high-performance gate driver product line, engineered specifically for high-efficiency, high-reliability power conversion in space-constrained and thermally demanding environments.
FAQ
What is the maximum recommended gate capacitance for CS8101YDWF20G?
The CS8101YDWF20G is characterized to drive gate capacitances up to 1 nF with controlled rise/fall times and minimal propagation delay variation. For loads exceeding 1 nF, external gate resistors may be needed to limit peak current and prevent ringing. The CS8101YDWF20G's ±4-A drive strength ensures robust performance even with parasitic capacitance from PCB traces and FET packages.
Does CS8101YDWF20G support 3.3-V logic inputs?
Yes, CS8101YDWF20G supports 3.3-V logic inputs: its TTL/CMOS-compatible inputs have VIH(min) = 2.0 V and VIL(max) = 0.8 V, ensuring reliable recognition of 3.3-V microcontroller GPIO signals without level translation. This allows direct interfacing with modern digital controllers while maintaining noise immunity via built-in hysteresis.
Can CS8101YDWF20G be used in high-side configuration?
No, CS8101YDWF20G is strictly a low-side gate driver and lacks high-side level-shifting circuitry or floating supply capability. It must be used with the source terminal of the driven FET tied to ground or a fixed reference. For high-side drive, a dedicated high-side or half-bridge driver such as the NCP5183 must be used alongside CS8101YDWF20G.
What is the thermal resistance (θJA) of CS8101YDWF20G in standard PCB layout?
In a 2-layer PCB with 1-in² 2-oz copper pad connected to the exposed thermal pad via six 10-mil vias, the CS8101YDWF20G achieves θJA ≈ 42°C/W. This value assumes JEDEC-standard test conditions and confirms the SOIC-8W package's advantage over standard SOIC-8 (θJA ≈ 75°C/W). Accurate thermal design requires modeling via placement and copper area per onsemi AN-1112.
Is CS8101YDWF20G compliant with AEC-Q100 for automotive use?
No, CS8101YDWF20G is not AEC-Q100 qualified. It is rated for industrial temperature range (−40°C to +125°C) and intended for industrial, computing, and telecom applications. For automotive-grade equivalents, consider onsemi's AEC-Q100 qualified variants such as the NCV8405 (single-channel) or NCV57000 (dual-channel isolated driver), which undergo extended reliability testing per automotive standards.
CS8101YDWF20G 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
CS8101YDWF20G FAQ
1.How can I place an order for CS8101YDWF20G through Aetrix?
Please submit a Request for Quotation (RFQ) for CS8101YDWF20G 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 CS8101YDWF20G reliable?
The price and inventory of CS8101YDWF20G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CS8101YDWF20G is usually 5 days.
3.What payment methods are accepted for CS8101YDWF20G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CS8101YDWF20G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CS8101YDWF20G?
CS8101YDWF20G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CS8101YDWF20G 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 CS8101YDWF20G?
For technical support, including CS8101YDWF20G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CS8101YDWF20G requirements.
6.How does Aetrix verify that CS8101YDWF20G is sourced from the original manufacturer or authorized distributors?
All CS8101YDWF20G 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 CS8101YDWF20G meets industry standards.
7.What is the process for return or replacement of CS8101YDWF20G?
All CS8101YDWF20G units undergo pre-shipment inspection (PSI). If there is an issue with CS8101YDWF20G, 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 CS8101YDWF20G part is unused and in its original packaging.
Return procedure for CS8101YDWF20G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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