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Texas Instruments LM25101CMYE/NOPB
- Part No.:
- LM25101CMYE/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 8-PowerTSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LM25101CMYE/NOPB.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:102
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Product details
Overview
LM25101CMYE/NOPB from Texas Instruments is a 1-A, 80-V half-bridge gate driver IC designed to independently control high-side and low-side N-channel MOSFETs in synchronous buck and half-bridge power stages. It delivers 1-A peak sourcing/sinking current per output, supports bootstrap supply up to 100 V DC, features 25-ns typical propagation delay, and includes integrated UVLO on both VDD and HB–HS rails. It is used in 48-V server power supplies and solar DC-DC converters.
For engineers reviewing the LM25101CMYE/NOPB datasheet, LM25101CMYE/NOPB pinout, LM25101CMYE/NOPB application, or LM25101CMYE/NOPB equivalent, key selection criteria include its 1-A drive strength (C-version), 8-pin MSOP PowerPAD package with exposed thermal pad, TTL-compatible HI/LI inputs, and independent high/low-side logic control for precise dead-time management in hard-switched topologies.
Technical Context
The LM25101CMYE/NOPB implements a robust level-shifting architecture to drive the high-side MOSFET referenced to the switching node (HS), enabling operation with up to 100-V bootstrap rail voltage. Its dual-output stage uses low-resistance CMOS drivers with matched propagation delays (≤10 ns mismatch) and fast 8-ns rise/fall times into 1000-pF loads.
UVLO circuitry independently monitors VDD (6.9-V rising threshold) and HB–HS (6.6-V rising threshold) to prevent shoot-through during under-voltage conditions. The device operates across –40°C to +125°C junction temperature and requires local decoupling of VDD to VSS with low-ESR/ESL capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | 1 A per channel - sufficient to drive medium-power MOSFETs (e.g., QG ≤ 25 nC) at 500-kHz switching frequency without external buffers. |
| Bootstrap Voltage Range | Up to 100 V DC - enables use with high-input-voltage topologies including 48-V server rails and photovoltaic string converters. |
| Propagation Delay | 22–56 ns (typ. 25 ns) - ensures tight timing control in high-frequency synchronous rectification and zero-voltage switching circuits. |
| Delay Matching | ≤10 ns (typ. 4 ns) - minimizes overlap risk between HO and LO transitions, reducing shoot-through probability in half-bridge configurations. |
| Input Threshold | TTL-compatible (VIH = 2.3 V max, VIL = 1.3 V min) - allows direct interfacing with microcontrollers, DSPs, and PWM controllers operating at 3.3-V or 5-V logic levels. |
| Operating Temperature | –40°C to +125°C - supports deployment in industrial motor drives and outdoor solar inverters with wide ambient ranges. |
| Supply Voltage (VDD) | 9–14 V - matches standard 12-V bias rails; undervoltage lockout prevents erratic operation below 6.9 V. |
Pinout & Package
The LM25101CMYE/NOPB is housed in an 8-pin MSOP PowerPAD package (3 mm × 3 mm) with an exposed thermal pad soldered to PCB ground for enhanced thermal dissipation (RθJB = 15.1°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Positive gate drive supply input | Primary power rail for low-side driver and logic; must be locally decoupled to VSS with ≤1-µF low-ESR capacitor. |
| HB | High-side bootstrap rail | Connects to positive terminal of bootstrap capacitor; supplies floating voltage for high-side driver stage. |
| HO | High-side gate driver output | Drives gate of high-side N-MOSFET; referenced to HS pin; requires short, low-inductance PCB trace. |
| HS | High-side source connection | Switch node reference for HO output and bootstrap capacitor negative terminal; clamped by MOSFET body diode. |
| HI | High-side input control | TTL-level logic input controlling HO; unused pins must be tied to VSS to prevent floating states. |
| LI | Low-side input control | TTL-level logic input controlling LO; independent of HI for flexible dead-time insertion and phase control. |
| LO | Low-side gate driver output | Drives gate of low-side N-MOSFET; referenced to VSS; capable of 1-A sink/source into capacitive loads. |
| VSS | Ground return | Common reference for all signals and low-side driver; must connect to solid ground plane beneath thermal pad. |
Key Features
| Feature | Design Value |
|---|---|
| Independent HI/LI logic inputs | Enables full control over HO/LO states - critical for implementing programmable dead time, burst mode, or asymmetric PWM in digital power systems. |
| Integrated bootstrap diode | Reduces BOM count and layout area; forward voltage ≤0.85 V at 100 µA allows efficient bootstrap capacitor recharge in high-duty-cycle applications. |
| Matched propagation delays | ≤10 ns HO/LO delay mismatch ensures consistent timing margins - simplifies gate timing analysis and improves reliability in high-efficiency converters. |
| Dual UVLO protection | Separate VDD and HB–HS monitoring prevents high-side misfiring during bootstrap capacitor discharge or input rail sag - essential for fault-tolerant operation. |
| Thermal-enhanced PowerPAD | Exposed copper pad lowers junction-to-board thermal resistance to 15.1°C/W - supports continuous 1-A operation at 125°C ambient without forced airflow. |
Applications
| Solar DC-DC Converter | 48-V Server Power Supply |
|---|---|
Use Scenario: Step-up DC-DC conversion from photovoltaic panel strings (30–60 V) to 12-V or 48-V intermediate bus. IC Role / Device Role / Timing Role: Half-bridge gate driver controlling synchronous rectification in two-switch forward or active-clamp forward topology. Use Value: 100-V bootstrap capability enables direct interface with high-input-voltage PV sources; 1-A drive strength supports fast switching of low-RDS(on) MOSFETs to minimize conduction losses. | Use Scenario: Point-of-load (POL) regulation in datacenter servers using 48-V direct distribution architecture. IC Role / Device Role / Timing Role: High-frequency synchronous buck driver delivering >100-A output with multiphase interleaving. Use Value: TTL inputs simplify integration with digital PWM controllers; matched delays ensure precise phase alignment across multiple LM25101CMYE/NOPB units in parallel phases. |
| Motor-Controlled Driver | Two-Switch Forward Converter |
Use Scenario: Low-voltage BLDC motor control in industrial automation, requiring compact half-bridge modules with embedded gate drive. IC Role / Device Role / Timing Role: Dual-channel gate driver for N-channel half-bridge in inverter leg, supporting 10–100 kHz PWM frequencies. Use Value: 8-pin MSOP PowerPAD enables space-constrained motor control PCBs; thermal pad ensures stable operation under continuous 1-A gate charge duty cycles. | Use Scenario: Isolated DC-DC conversion in telecom power systems, where efficiency and reliability are prioritized over cost. IC Role / Device Role / Timing Role: Gate driver for primary-side switches in two-switch forward topology with synchronous rectification on secondary side. Use Value: Independent HI/LI control allows precise timing of leading-edge modulation; 25-ns propagation delay supports >500-kHz operation while maintaining safe dead time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar half-bridge gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5101AMX/NOPB | 3-A peak output, SOIC-8 package, no integrated bootstrap diode | Better suited for high-current (>2-A) MOSFETs; requires external bootstrap diode and larger layout area | Select when higher drive strength is needed and board space permits external diode placement. |
| UCC27201ADDR | 2-A peak output, 100-V bootstrap, WSON-8 package, no integrated diode | Higher drive capability and same voltage rating; lacks internal diode but offers faster 15-ns propagation delay | Prefer for designs requiring tighter timing control and external diode is acceptable in layout. |
Compared with LM5101AMX/NOPB and UCC27201ADDR, the LM25101CMYE/NOPB trades peak current for integration (built-in bootstrap diode) and compact MSOP PowerPAD packaging - making it optimal for space-constrained, medium-power 48-V and solar applications where BOM reduction and thermal performance are prioritized over maximum drive strength.
Availability
LM25101CMYE/NOPB is available at Aetrix Electronics and suitable for solar DC-DC converters, 48-V server power supplies, and motor-controlled drivers requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LM25101CMYE/NOPB 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
Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in power management ICs and high-reliability industrial components.
The LM25101 product line delivers scalable, pin-compatible half-bridge gate drivers (1-A to 3-A versions) optimized for high-efficiency, high-voltage DC-DC conversion in server, solar, and motor-control applications.
FAQ
What is the peak gate drive current capability of the LM25101CMYE/NOPB?
The LM25101CMYE/NOPB provides 1-A peak sourcing and sinking current per output channel (HO and LO). This value is confirmed in the Electrical Characteristics table (Section 7.5) of the official TI datasheet SNVS859C, measured at VDD = 12 V and TJ = 25°C. The C-version designation explicitly denotes the 1-A variant, distinguishing it from the 2-A (B) and 3-A (A) variants. This drive strength supports MOSFETs with gate charges up to ~25 nC at 500-kHz switching frequency.
Does the LM25101CMYE/NOPB include an integrated bootstrap diode?
Yes, the LM25101CMYE/NOPB integrates a bootstrap diode between VDD and HB pins. As specified in Section 7.5 (Electrical Characteristics), its low-current forward voltage is 0.52–0.85 V at 100 µA, and dynamic resistance is 1.0–1.65 Ω at 100 mA. This eliminates the need for an external diode in most applications, reducing component count and PCB area - a key differentiator from alternatives like UCC27201ADDR.
What package type is used for the LM25101CMYE/NOPB?
The LM25101CMYE/NOPB uses an 8-pin MSOP PowerPAD package (body size 3 mm × 3 mm) with an exposed thermal pad on the bottom. This is confirmed in the "Device Information" table (page 2) and "Pin Configuration" section (page 6) of the TI datasheet SNVS859C. The thermal pad must be soldered to the PCB ground plane to achieve the specified RθJB = 15.1°C/W and ensure reliable operation at full load and high ambient temperatures.
How does the UVLO protection work on the LM25101CMYE/NOPB?
The LM25101CMYE/NOPB implements dual independent UVLO circuits: one monitors VDD (rising threshold = 6.9 V, hysteresis = 0.5 V) and the other monitors HB–HS voltage (rising threshold = 6.6 V, hysteresis = 0.4 V). As detailed in Section 8.3.1 and Table 2–3 of the datasheet, VDD UVLO disables both HO and LO outputs, while HB–HS UVLO disables only HO. This prevents shoot-through during startup or transient brownouts without halting low-side operation.
Is the LM25101CMYE/NOPB pin-compatible with other devices in the LM25101 family?
Yes, all LM25101 variants (A, B, C) share identical pinouts across supported packages, including the 8-pin MSOP PowerPAD used by LM25101CMYE/NOPB. This is explicitly stated in the "Features" section (page 1): "Pin Compatible With HIP2100 and HIP2101" and confirmed in the "Device Options" table (page 5). Designers can upgrade or downgrade drive strength (1-A ↔ 2-A ↔ 3-A) without modifying PCB layout - provided thermal and routing margins accommodate the selected variant's current capability.
LM25101CMYE/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-PowerTSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- Independent
- Number of Drivers:
- 2
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 9V ~ 14V
- Logic Voltage - VIL, VIH:
- 2.3V, -
- Current - Peak Output (Source, Sink):
- 1A, 1A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 100 V
- Rise / Fall Time (Typ):
- 990ns, 715ns
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
LM25101CMYE/NOPB FAQ
1.How can I place an order for LM25101CMYE/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM25101CMYE/NOPB 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 LM25101CMYE/NOPB reliable?
The price and inventory of LM25101CMYE/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM25101CMYE/NOPB is usually 5 days.
3.What payment methods are accepted for LM25101CMYE/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM25101CMYE/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM25101CMYE/NOPB?
LM25101CMYE/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM25101CMYE/NOPB 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 LM25101CMYE/NOPB?
For technical support, including LM25101CMYE/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM25101CMYE/NOPB requirements.
6.How does Aetrix verify that LM25101CMYE/NOPB is sourced from the original manufacturer or authorized distributors?
All LM25101CMYE/NOPB 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 LM25101CMYE/NOPB meets industry standards.
7.What is the process for return or replacement of LM25101CMYE/NOPB?
All LM25101CMYE/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM25101CMYE/NOPB, 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 LM25101CMYE/NOPB part is unused and in its original packaging.
Return procedure for LM25101CMYE/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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