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onsemi NCV8502PDW80R2G
- Part No.:
- NCV8502PDW80R2G
- Manufacturer:
- onsemi
- Package:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
NCV8502PDW80R2G.pdf
- Description:
- IC REG LINEAR 8V 150MA 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,222
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Product details
Overview
NCV8502PDW80R2G from onsemi is an automotive-grade 8.0 V fixed-output LDO linear regulator with 150 mA output, ±2.0% output accuracy, 0.6 V max dropout at full load, and integrated active RESET (with programmable delay), FLAG monitor, and fault protection including +60 V peak transient and −15 V reverse voltage tolerance. It serves as a primary power supply for microprocessor core logic in engine control units and body electronics.
For engineers reviewing the NCV8502PDW80R2G datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, package-specific pin functions, real-world automotive use cases, and validated alternative options - all grounded in the official onsemi NCV8502 Series datasheet Rev. 32 (July 2024).
Technical Context
The NCV8502PDW80R2G implements a bandgap-referenced error amplifier with thermal shutdown, current limiting, and reverse-battery protection. Its RESET circuit operates down to VOUT = 1.0 V and features hysteresis (0.97×/0.98× VOUT thresholds) to prevent oscillation during brownout recovery.
The FLAG monitor uses an internal comparator referenced to 1.20 V (±0.11 V hysteresis) on the MON pin, providing early warning before RESET assertion. The DELAY pin sources 2.5 µA typical current to an external capacitor to set reset timeout - e.g., 23.8 ms with 33 nF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 8.0 V ±2.0% - ensures stable MCU I/O rail under automotive load dump and cold-crank conditions. |
| Max Output Current | 150 mA - sufficient for low-power microcontrollers, CAN transceivers, and sensor interfaces. |
| Dropout Voltage | 600 mV max at 150 mA - enables operation with VIN as low as 8.6 V while maintaining regulation. |
| Quiescent Current | 100 µA at 100 µA load - extends battery life in always-on vehicle modules like door modules and telematics. |
| RESET Threshold | 7.00–7.52 V (decreasing), 7.05–7.52 V (increasing) - triggers reset before VOUT falls below 8.0 V × 0.97 = 7.76 V. |
| Transient Tolerance | +60 V peak (46 V load dump @ VIN = 14 V) - meets ISO 7637-2 Pulse 5a requirements for 12 V systems. |
| Operating Temp | −40°C to +150°C junction - qualified for under-hood applications per AEC-Q100 Grade 1. |
Pinout & Package
NCV8502PDW80R2G uses the SOIC-16 wide-body exposed pad package (Case 751AG), optimized for thermal performance in automotive environments. The exposed pad must be soldered to PCB ground plane for RJC = 15°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input Supply | Accepts −15 V to +48 V DC input; withstands +60 V transients per ISO 7637-2. |
| 2 (MON) | Monitor Input | Comparator input for early-warning FLAG; threshold = 1.20 V ±0.11 V; connect to VOUT if unused. |
| 3–6, 11–12, 14–15 (NC) | No Connection | Internally unconnected; must remain floating or tied to GND per layout guidelines. |
| 7 (RADJ) | Reset Adjust | Ground to select default 7.36 V RESET threshold; connect resistor divider to lower threshold. |
| 8 (DELAY) | Reset Timing | Sources 2.5 µA to external capacitor; sets RESET delay time (e.g., 23.8 ms with 33 nF). |
| 9–12 (NC) | No Connection | See pins 3–6, 11–12, 14–15. |
| 13 (GND) | Ground Reference | All GND pins must be connected to low-impedance system ground; ties to exposed thermal pad. |
| 14 (NC) | No Connection | See pins 3–6, 11–12, 14–15. |
| 15 (NC) | No Connection | See pins 3–6, 11–12, 14–15. |
| 16 (RESET) | Active-Low Reset | Open-collector NPN output; valid down to VOUT = 1.0 V; requires external pull-up. |
| 1 (FLAG) | Early Warning Flag | Open-collector output asserted when MON < 1.10 V; gives MCU time to save state before RESET. |
| 2 (VOUT) | Regulated Output | 8.0 V ±2.0% at up to 150 mA; requires ≥10 µF ceramic output capacitor for stability. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Grade 1 (−40°C to +125°C ambient) with PPAP capability - certified for automotive safety-critical subsystems. |
| Integrated FLAG Monitor | Provides 1.20 V threshold with 20–100 mV hysteresis - enables deterministic microprocessor shutdown sequencing. |
| Programmable RESET Delay | Delay time set by external capacitor on DELAY pin (2.5 µA charge current) - eliminates need for discrete RC timing. |
| Reverse Battery Protection | Withstands −15 V applied to VIN - prevents damage during battery jump-start or incorrect installation. |
| Load Dump Immunity | +60 V transient tolerance per ISO 7637-2 Pulse 5a - eliminates need for external TVS in most 12 V vehicle designs. |
Applications
| Engine Control Unit (ECU) Power | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Powers 32-bit MCU, CAN controller, and analog sensor interface in gasoline/diesel ECU under harsh under-hood conditions (−40°C to +125°C ambient, load dump, cold crank). IC Role / Device Role / Timing Role: Primary 8.0 V LDO supplying MCU I/O and peripheral rails; RESET asserts during undervoltage events to prevent corrupted firmware execution. Use Value: Guaranteed RESET validity down to VOUT = 1.0 V ensures safe MCU shutdown even during severe brownout - avoiding undefined processor states. |
Use Scenario: Supplies power to door module MCU, window motor driver logic, and LIN transceiver in vehicle body electronics. IC Role / Device Role / Timing Role: Fixed 8.0 V regulator with FLAG monitor providing early warning of impending RESET to allow graceful window position saving before power loss. Use Value: FLAG signal gives ≥10 ms warning (configurable via MON resistor divider) - sufficient time to store non-volatile memory and disable actuators safely. |
| Telematics Control Unit (TCU) | Advanced Driver Assistance Systems (ADAS) Sensor Hub |
|
Use Scenario: Powers GPS/GNSS receiver, cellular modem, and secure boot MCU in always-on telematics gateway with battery backup. IC Role / Device Role / Timing Role: Micropower LDO (100 µA IQ) maintaining 8.0 V rail during sleep mode; RESET monitors main battery voltage for wake-up and fault reporting. Use Value: Low quiescent current extends backup battery life >1 year; +60 V transient rating eliminates need for external protection in 12 V vehicle bus interface. |
Use Scenario: Supplies vision processor I/O and radar transceiver bias in ADAS domain controller located near front bumper. IC Role / Device Role / Timing Role: Automotive-grade LDO delivering clean 8.0 V to high-speed interfaces; MON pin configured for 7.8 V warning threshold to preempt RESET during vibration-induced connector bounce. Use Value: Adjustable MON threshold enables precise brownout margin tuning - avoids false resets while ensuring timely shutdown before functional failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8502D80R2G | Same electrical specs but in SO-8 (Case 751) package; RJA = 165°C/W vs. 56°C/W for PDW; no exposed thermal pad. | Limited to lower-power applications (<50 mA continuous) due to higher thermal resistance; unsuitable for under-hood use above 85°C ambient. | Select only for cost-sensitive, non-automotive, or low-temperature PCB layouts where thermal headroom exceeds 40°C. |
| TLV73380PDBVR | 8.0 V fixed LDO with 150 mA output, but no RESET/FLAG/automotive qualification; max VIN = 5.5 V; no load dump tolerance. | Restricted to 3.3 V/5 V systems; cannot replace NCV8502PDW80R2G in 12 V automotive applications without external protection. | Use only in industrial or consumer battery-powered devices with stable input voltage and no transient requirements. |
Compared with NCV8502D80R2G and TLV73380PDBVR, the NCV8502PDW80R2G uniquely combines AEC-Q100 Grade 1 qualification, +60 V load dump immunity, and integrated FLAG/RESET in a thermally enhanced SOIC-16 EP package - making it the sole option for high-reliability 12 V automotive power domains requiring deterministic shutdown behavior.
Availability
NCV8502PDW80R2G is available at Aetrix Electronics and suitable for engine control units, body control modules, and telematics gateways requiring stable component supply across extended temperature ranges and automotive qualification.
Supply support for NCV8502PDW80R2G 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 specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The NCV8502 series belongs to onsemi's automotive power management portfolio, designed specifically to meet AEC-Q100 requirements and simplify robust power design in engine, chassis, and body electronics systems.
FAQ
What is the maximum input voltage the NCV8502PDW80R2G can withstand during load dump events?
The NCV8502PDW80R2G is rated for +60 V peak transient voltage per ISO 7637-2 Pulse 5a when VIN = 14 V. This allows direct connection to the 12 V vehicle battery without external TVS diodes in most automotive applications. The device remains functional during the transient and resumes regulation once voltage returns within operating range.
Does the NCV8502PDW80R2G require an external capacitor on the DELAY pin, and how is delay time calculated?
Yes, the NCV8502PDW80R2G requires an external capacitor on the DELAY pin to set reset timeout. Delay time is calculated as tDELAY = CDELAY × (VDT − VRESET_LOW) / ICHARGE, where VDT = 1.8 V (typ), VRESET_LOW ≈ 0 V, and ICHARGE = 2.5 µA (typ). For example, a 33 nF capacitor yields ~23.8 ms delay. The NCV8502PDW80R2G datasheet provides full derivation and layout guidance.
Can the RESET threshold of the NCV8502PDW80R2G be adjusted, and how is it implemented?
Yes, the RESET threshold of the NCV8502PDW80R2G can be lowered using an external resistor divider connected between VOUT and RADJ. Grounding RADJ selects the default 7.36 V threshold (92% of 8.0 V). The NCV8502PDW80R2G datasheet Figure 13 shows the exact configuration, and Equation 1 in Section 9 defines the relationship between resistor values and adjusted threshold.
What is the purpose of the FLAG pin on the NCV8502PDW80R2G, and how does it differ from RESET?
The FLAG pin on the NCV8502PDW80R2G provides early warning of an impending RESET event by asserting low when the MON pin voltage drops below 1.10–1.31 V - typically configured to trigger ~50–100 mV before the RESET threshold. Unlike RESET, which forces immediate MCU shutdown, FLAG gives the processor time to complete critical tasks (e.g., save RAM, disable outputs) before RESET occurs. Both signals are open-collector and require external pull-ups.
Is the NCV8502PDW80R2G pin-compatible with other members of the NCV8502 family, such as adjustable or different voltage variants?
No, the NCV8502PDW80R2G is not pin-compatible with adjustable-output variants (e.g., NCV8502PDWADJR2G) because pin 7 is RADJ in fixed-output versions but VADJ in adjustable versions. However, all SOW-16 EP variants share identical mechanical footprint, thermal pad layout, and pin 1–16 numbering - enabling PCB reuse with schematic-level changes only for voltage-setting components.
NCV8502PDW80R2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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
NCV8502PDW80R2G FAQ
1.How can I place an order for NCV8502PDW80R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8502PDW80R2G 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 NCV8502PDW80R2G reliable?
The price and inventory of NCV8502PDW80R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8502PDW80R2G is usually 5 days.
3.What payment methods are accepted for NCV8502PDW80R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8502PDW80R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8502PDW80R2G?
NCV8502PDW80R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8502PDW80R2G 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 NCV8502PDW80R2G?
For technical support, including NCV8502PDW80R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8502PDW80R2G requirements.
6.How does Aetrix verify that NCV8502PDW80R2G is sourced from the original manufacturer or authorized distributors?
All NCV8502PDW80R2G 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 NCV8502PDW80R2G meets industry standards.
7.What is the process for return or replacement of NCV8502PDW80R2G?
All NCV8502PDW80R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8502PDW80R2G, 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 NCV8502PDW80R2G part is unused and in its original packaging.
Return procedure for NCV8502PDW80R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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