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onsemi NCV8501PDW80G
- Part No.:
- NCV8501PDW80G
- Manufacturer:
- onsemi
- Package:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
NCV8501PDW80G.pdf
- Description:
- IC REG LINEAR 8V 150MA 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,200
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Product details
Overview
NCV8501PDW80G from onsemi is an automotive-grade 8.0 V fixed-output LDO linear regulator in SOW-16 exposed pad package, delivering 150 mA output current with ±2.0% accuracy, 600 mV max dropout at 150 mA, and 90 µA quiescent current at light load. It integrates ENABLE, active-low RESET (functional down to 1.0 V output), FLAG early-warning monitor, and DELAY timing capacitor interface - designed for battery-powered microprocessor systems in harsh automotive environments.
For engineers reviewing the NCV8501PDW80G datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, real-world design meaning of specifications, validated pin functions, automotive-qualified fault protections, and two confirmed alternative parts with documented functional and application differences.
Technical Context
The NCV8501PDW80G implements a bandgap-referenced error amplifier driving a PNP pass transistor, with independent comparator-based RESET and FLAG circuits referenced to internal 1.20 V threshold. Its ENABLE input withstands up to +45 V dc and 60 V transient load dump, and features internal pull-down for fail-safe low-IQ sleep mode.
RESET activation occurs when VOUT drops below 0.97 × 8.0 V (7.76 V) during regulation loss or at power-up until VOUT reaches 0.98 × 8.0 V (7.84 V); DELAY timing is set by external capacitor charging at 2.5 µA typical; FLAG asserts low when MON pin voltage falls below 1.20 V ±0.05 V hysteresis, enabling controlled microprocessor shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 8.0 V ±2.0% - ensures stable supply for 8 V logic rails or analog subsystems without external feedback components. |
| Max Output Current | 150 mA - sufficient to power MCU cores, CAN transceivers, or sensor signal chains in compact automotive modules. |
| Dropout Voltage | 600 mV max at 150 mA - enables operation from 8.6 V input in cold-crank conditions (e.g., 8.0 V + 0.6 V = 8.6 V min VIN). |
| Quiescent Current | 90 µA at 100 µA load - extends battery life in always-on vehicle modules such as telematics or body control units. |
| RESET Threshold | 7.76 V (low) / 7.84 V (high) - provides clean, hysteresis-stabilized reset signaling even as VOUT decays below regulation. |
| FLAG Monitor Threshold | 1.20 V on MON pin with 20–100 mV hysteresis - allows precise early-warning trip point setting via resistor divider for graceful firmware shutdown. |
| Transient Protection | +60 V peak load dump, −15 V reverse battery - eliminates need for external TVS or reverse-polarity protection in 12 V automotive systems. |
Pinout & Package
SOW-16 exposed pad (Case 751AG) package with thermal pad optimized for PCB heat dissipation; RJA = 56 °C/W, RJC = 15 °C/W - requires minimum 47 mm² copper area under exposed pad per Figure 23 for safe 150 mA operation at +125 °C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply (−15 V to +45 V); accepts load dump transients up to +60 V. |
| 2 | MON | Monitor input for FLAG comparator; connect to resistor divider from VOUT to set early-warning threshold. |
| 3 | DELAY | Timing capacitor node; charges at 2.5 µA typical to set RESET delay time (e.g., 33 nF → ~24 ms). |
| 4–6, 10–12, 14–15 | NC | No internal connection; must remain unconnected or grounded per layout best practice. |
| 7 | GND | Power ground; all GND pins must be tied to common system ground plane for noise immunity and thermal conduction. |
| 8 | RESET | Open-collector active-low reset output; sinks ≥4 mA; valid down to VOUT = 1.0 V. |
| 9 | ENABLE | Logic-enable input; high (>3.0 V) activates regulator; internal 20 kΩ pull-down ensures safe shutdown if floating. |
| 10 | FLAG | Open-collector early-warning output; pulls low when MON < 1.20 V, giving MCU time to save state before RESET. |
| 11 | VOUT | Regulated 8.0 V output; requires ≥10 µF ceramic output capacitor for stability per Figure 20. |
| 12–16 | NC / Exposed Pad | Thermal pad (pin 16) - must be soldered to large copper pour for thermal management; not electrically connected. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | NCV prefix confirms AEC-Q100 stress testing, site/change control, and PPAP support for Tier-1 production. |
| Early-warning FLAG | Provides programmable pre-reset alert via MON pin, enabling deterministic firmware shutdown instead of abrupt reset. |
| Load-dump tolerant ENABLE | Withstands 60 V transients on ENABLE pin when tied directly to battery rail - eliminates external clamping diodes. |
| Reset delay programmability | External DELAY capacitor sets precise reset timeout (e.g., 10–100 ms range), avoiding race conditions in multi-rail systems. |
| Low-IQ sleep mode | 12 µA typical IQ when ENABLE = 0 V - critical for always-on modules meeting ISO 16750-2 quiescent current limits. |
Applications
| Infotainment Power Sequencing | ADAS Camera Module Supply |
|---|---|
|
Use Scenario: Dual-rail power sequencing for SoC + ISP in automotive infotainment head units, where 8 V supplies auxiliary analog circuitry and memory interfaces. IC Role / Device Role / Timing Role: Primary 8.0 V LDO with synchronized RESET/FLAG to coordinate boot order and detect brownout before SoC lockup. Use Value: Enables deterministic startup sequence and graceful firmware response to battery sag during engine cranking. |
Use Scenario: Stable 8 V bias for image signal processor and CIS analog front-end in surround-view camera ECU operating at −40 °C to +105 °C. IC Role / Device Role / Timing Role: Regulator with integrated FLAG warning and RESET assertion to trigger camera frame buffer flush before power collapse. Use Value: Prevents corrupted image capture during transient voltage dips by providing >20 ms warning before hard reset. |
| Body Control Unit (BCU) | Telematics Control Unit (TCU) |
|
Use Scenario: Always-on 8 V supply for CAN transceiver, real-time clock, and wake-up logic in door module or lighting controller. IC Role / Device Role / Timing Role: Low-quiescent LDO with ENABLE-controlled sleep/wake and FLAG-triggered state save prior to deep-sleep entry. Use Value: Meets ISO 16750-2 Class D quiescent current requirements (<100 µA) while preserving volatile data across ignition cycles. |
Use Scenario: Backup power rail for GNSS receiver and cellular modem in TCU during main battery disconnect or cranking events. IC Role / Device Role / Timing Role: Fault-tolerant 8 V regulator with −15 V reverse-battery and +60 V load-dump protection for under-hood mounting. Use Value: Eliminates need for discrete protection components, reducing BOM count and PCB area in space-constrained TCU designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8501D80R2G | Same core functionality but in SO-8 (Case 751-07) package; RJA = 165 °C/W vs. 56 °C/W; no exposed thermal pad. | Limited to ≤50 mA continuous output in high-ambient environments due to higher thermal resistance. | Select when board space is constrained and thermal load is light; avoid for sustained 150 mA operation above 70 °C ambient. |
| TLV73380PDBVR | 8.0 V fixed LDO with 150 mA rating, but lacks RESET/FLAG/DELAY; max input 6.5 V; no automotive qualification or load-dump tolerance. | Not suitable for 12 V automotive systems; requires external reset supervisor IC and protection circuitry. | Consider only for non-automotive, low-voltage (≤6.5 V) applications where cost and size outweigh functional integration needs. |
Compared with NCV8501D80R2G, the NCV8501PDW80G delivers 3× lower thermal resistance for full 150 mA capability in hot under-hood locations; versus TLV73380PDBVR, it provides complete automotive power-management integration - eliminating four external components and qualifying for AEC-Q100 without redesign.
Availability
NCV8501PDW80G is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and body control units requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for NCV8501PDW80G 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 (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics, with leadership in automotive, industrial, cloud, and IoT markets.
The NCV8501PDW80G belongs to the NCV8501 series of micropower LDOs engineered specifically for automotive microprocessor power management - emphasizing fault resilience, extended temperature operation, and integrated supervisory functions.
FAQ
What is the maximum input voltage the NCV8501PDW80G can withstand during load dump events?
The NCV8501PDW80G is rated for +60 V peak transient voltage during load dump events at VIN, as specified in the Maximum Ratings table. This allows direct connection to the 12 V battery rail without external TVS diodes in automotive applications, provided layout follows onsemi's recommended grounding and decoupling practices from Figure 20.
Does the NCV8501PDW80G support adjustable output voltage?
No, the NCV8501PDW80G is a fixed 8.0 V output variant. Adjustable versions (e.g., NCV8501PDWADJG) use the VADJ pin and require external resistor dividers; the PDW80G pinout replaces VADJ with DELAY and has no VADJ function. Its internal feedback network is trimmed for 8.0 V ±2.0%.
How is the RESET delay time calculated for the NCV8501PDW80G?
The RESET delay time is set by the external capacitor on the DELAY pin using tDELAY = CDELAY × (VDT − VRESET_LOW) / ICHARGE, where VDT = 1.8 V typical, VRESET_LOW ≈ 0 V, and ICHARGE = 2.5 µA typical. For example, a 33 nF capacitor yields ~23.8 ms delay, as shown in the Application Notes section.
What is the minimum output voltage at which the RESET function remains valid for the NCV8501PDW80G?
The RESET function of the NCV8501PDW80G remains fully operational down to VOUT = 1.0 V, as explicitly guaranteed in the datasheet. This ensures reliable reset signaling even during severe brownout conditions well below nominal 8.0 V regulation, preventing MCU lockup or undefined behavior.
Can the FLAG pin of the NCV8501PDW80G drive a microcontroller GPIO directly?
Yes, the FLAG pin is an open-collector NPN output rated for ≥1 mA sink current at 0.4 V saturation. It can directly interface with standard 3.3 V or 5 V MCU GPIOs configured as interrupt inputs with external pull-up; no level-shifting or buffering is required for compatibility with most automotive microcontrollers.
NCV8501PDW80G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 45V
- Voltage - Output (Min/Fixed):
- 8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 150 µA
- Current - Supply (Max):
- 19 mA
- PSRR:
- -
- Control Features:
- Enable, Reset
- Protection Features:
- Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
NCV8501PDW80G FAQ
1.How can I place an order for NCV8501PDW80G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8501PDW80G 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 NCV8501PDW80G reliable?
The price and inventory of NCV8501PDW80G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8501PDW80G is usually 5 days.
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4.How is shipping managed for NCV8501PDW80G?
NCV8501PDW80G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8501PDW80G 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 NCV8501PDW80G?
For technical support, including NCV8501PDW80G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8501PDW80G requirements.
6.How does Aetrix verify that NCV8501PDW80G is sourced from the original manufacturer or authorized distributors?
All NCV8501PDW80G 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 NCV8501PDW80G meets industry standards.
7.What is the process for return or replacement of NCV8501PDW80G?
All NCV8501PDW80G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8501PDW80G, 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 NCV8501PDW80G part is unused and in its original packaging.
Return procedure for NCV8501PDW80G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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