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onsemi NCV8502D80R2G
- Part No.:
- NCV8502D80R2G
- Manufacturer:
- onsemi
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
NCV8502D80R2G.pdf
- Description:
- IC REG LINEAR 8V 150MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,400
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Product details
Overview
NCV8502D80R2G from onsemi is an automotive-grade 8.0 V fixed-output LDO linear regulator delivering 150 mA with ±2.0% output accuracy, 600 mV max dropout at full load, and integrated active RESET with programmable delay and FLAG monitor for early-warning microprocessor shutdown sequencing. It operates from −15 V to +48 V input and withstands +60 V load dump transients.
For engineers reviewing the NCV8502D80R2G datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SO−8 pin mapping, automotive EMC-optimized fault protection specs, and validated alternative options for battery-powered microcontroller power rails requiring AEC-Q100 compliance and reset coordination.
Technical Context
The NCV8502D80R2G implements a bandgap-referenced error amplifier with thermal shutdown, reverse-battery protection (−15 V), short-circuit current limiting (151–300 mA), and load-dump tolerance (+60 V). Its RESET circuit remains functional down to VOUT = 1.0 V and features hysteresis (0.97×/0.98× VOUT thresholds) to prevent oscillation during brownout recovery.
FLAG monitoring uses an internal comparator referenced to 1.20 V (±0.11 V hysteresis) on the MON pin, enabling early warning before RESET assertion. The DELAY pin sources 2.5 µA typical to charge an external capacitor, generating a programmable 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 logic supply for 8 V–based microcontrollers without external feedback components. |
| Max Output Current | 150 mA - supports mid-power MCU cores, CAN transceivers, and sensor interfaces in automotive body control modules. |
| Dropout Voltage | 600 mV @ 150 mA - enables operation from 8.6 V input in cold-crank conditions while maintaining regulation. |
| Quiescent Current | 100 µA @ 100 µA load - extends battery life in always-on vehicle subsystems such as door modules and keyless entry receivers. |
| RESET Threshold | 7.00 V (low) / 7.52 V (high) - provides 6.0% hysteresis to avoid chatter during slow-voltage recovery after ignition cycling. |
| Operating Input Range | −15 V to +48 V - accommodates reverse-battery connection, load dump, and wide automotive battery voltage swings. |
| Thermal Shutdown | 150 °C - protects against sustained overload or poor heatsinking in enclosed junction boxes. |
Pinout & Package
NCV8502D80R2G is housed in an SO−8 (Case 751) surface-mount package measuring 4.9 mm × 3.9 mm × 1.75 mm, with gull-wing leads and Pb-free finish (RoHS compliant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Input Supply | Accepts −15 V to +48 V DC; must be decoupled with ≥0.1 µF ceramic capacitor near pin. |
| 2 - MON | Monitor Input | Comparator input for early-warning FLAG; connect to VOUT if unused or configure threshold via resistor divider. |
| 3 - RADJ | Reset Adjust | Ground to use default 7.00/7.52 V RESET threshold; connect external divider to lower trip point. |
| 4 - DELAY | Reset Timing | Sources 2.5 µA to external capacitor; sets RESET assertion delay time (e.g., 23.8 ms with 33 nF). |
| 5 - GND | Ground Reference | All ground pins must be connected to low-impedance system ground plane for noise immunity and thermal performance. |
| 6 - RESET | Active-Low Reset | Open-collector NPN output; sinks >1 mA at 0.4 V; valid down to VOUT = 1.0 V for fail-safe MCU reset. |
| 7 - FLAG | Early Warning | Open-collector output asserting low when MON voltage falls below 1.20 V ±0.05 V hysteresis. |
| 8 - VOUT | Regulated Output | 8.0 V ±2.0% output; requires ≥10 µF low-ESR output capacitor for stability per Figure 18. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Rated for automotive temperature range (−40°C to +150°C junction), PPAP-capable, and site-controlled for OEM production traceability. |
| Load Dump Tolerance | Withstands +60 V transient spikes at VIN for ≥40 ms per ISO 7637-2 Pulse 5a, eliminating need for external TVS in many body electronics designs. |
| Programmable RESET Delay | External capacitor on DELAY pin sets precise reset timeout (e.g., 23.8 ms), enabling deterministic firmware save-and-shutdown sequences. |
| FLAG Early Warning | Provides ≥1.2 ms warning window (TWARNING) before RESET assertion, allowing microcontrollers to complete critical I/O operations safely. |
| Reverse-Battery Protection | Operates safely with −15 V applied to VIN, preventing damage during service or jump-start misconnection in 12 V vehicle systems. |
Applications
| Body Control Module (BCM) | Door Module Electronics |
|---|---|
Use Scenario: Powering 8 V microcontroller, LIN transceiver, and window motor driver IC in vehicle door assembly. IC Role / Device Role / Timing Role: Primary 8 V LDO supplying core logic; RESET coordinates safe shutdown during battery disconnect; FLAG warns of impending loss of VBAT. Use Value: Enables deterministic firmware state save before power loss, reducing EEPROM corruption risk during door open/close events. | Use Scenario: Regulating power for mirror position controller, lock actuator driver, and proximity sensor in side-door ECU. IC Role / Device Role / Timing Role: Fixed 8 V supply with integrated RESET/FLAG for coordinated actuator de-energization and sensor data freeze. Use Value: Prevents partial actuator movement during brownout by ensuring all peripherals shut down synchronously under monitored voltage decay. |
| Telematics Control Unit (TCU) | Smart Junction Box |
Use Scenario: Providing clean 8 V rail to GPS baseband processor and cellular modem in always-connected vehicle telematics unit. IC Role / Device Role / Timing Role: Low-quiescent LDO with load-dump immunity; FLAG triggers GPS position logging before RESET initiates modem shutdown. Use Value: Guarantees last-known location upload during ignition-off battery drain or alternator failure. | Use Scenario: Centralized power distribution node managing lighting, HVAC, and infotainment sub-rails in modern vehicle electrical architecture. IC Role / Device Role / Timing Role: Secondary 8 V regulator feeding gateway microcontrollers; RESET signals main ECU of upstream power fault. Use Value: Enables hierarchical fault propagation across domain controllers without software polling or bus latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8503D80R2G | Same SO−8 package and 8 V output, but adds adjustable RESET threshold via external resistor divider (RADJ pin); identical quiescent current and fault protection. | Preferred where dynamic reset voltage tuning is required (e.g., multi-rail systems with varying VOUT tolerances). | Select NCV8503D80R2G only if RESET threshold adjustment is needed; otherwise NCV8502D80R2G offers simpler layout and lower BOM count. |
| TLV73380PDBVR | 8 V fixed LDO in SOT-23-5; 150 mA rating, 250 mV dropout, but lacks RESET/FLAG/DELAY functions and automotive qualification. | Suitable for non-automotive, space-constrained consumer or industrial applications without reset coordination requirements. | Choose TLV73380PDBVR only for cost-sensitive, non-automotive designs where integrated reset logic is unnecessary and board space is critical. |
Compared with NCV8503D80R2G, the NCV8502D80R2G simplifies design by fixing RESET threshold-reducing component count and PCB area-while retaining full automotive robustness. Versus TLV73380PDBVR, it trades smaller footprint for essential automotive safety features: AEC-Q100 grade, load dump tolerance, and coordinated reset signaling.
Availability
NCV8502D80R2G is available at Aetrix Electronics and suitable for automotive body electronics, telematics control units, and smart junction boxes requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant LDO performance.
Supply support for NCV8502D80R2G 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 management, analog, sensors, and automotive electronics with strong focus on automotive reliability and functional safety.
The NCV8502 series belongs to onsemi's automotive power management portfolio, designed specifically for microprocessor power rails in harsh-temperature, high-transient environments like body control modules and infotainment systems.
FAQ
What is the maximum input voltage the NCV8502D80R2G can withstand during load dump events?
The NCV8502D80R2G is rated for +60 V peak transient voltage during load dump events per ISO 7637-2 Pulse 5a, with guaranteed operation for ≥40 ms at 14 V nominal battery. This eliminates need for external TVS diodes in many automotive front-end designs. The device also survives −15 V reverse-battery conditions without damage.
Does the NCV8502D80R2G require an external capacitor on the DELAY pin to function?
Yes, the NCV8502D80R2G requires an external capacitor connected between the DELAY pin and GND to set the RESET assertion delay time. Without it, RESET activates immediately upon power-up or brownout. Typical values range from 10 nF to 100 nF; a 33 nF capacitor yields ~23.8 ms delay using the device's 2.5 µA charge current and 1.8 V switching threshold.
Can the FLAG output of the NCV8502D80R2G drive a microcontroller GPIO directly?
Yes, the FLAG output is an open-collector NPN transistor capable of sinking ≥1 mA at 0.4 V saturation. It can directly interface with standard 3.3 V or 5 V microcontroller GPIOs configured as pull-up inputs. No level-shifting is required, and the 1.20 V comparator threshold ensures reliable early-warning detection before VOUT drops below 7.0 V.
Is the NCV8502D80R2G pin-compatible with other members of the NCV8502 family in SO−8 package?
Yes, all SO−8 variants of the NCV8502 family-including NCV8502D25R2G, NCV8502D33R2G, NCV8502D50R2G, NCV8502D80R2G, and NCV8502D100R2G-share identical pinout and package dimensions (Case 751). This allows drop-in replacement across output voltages without PCB redesign, provided external components (e.g., DELAY capacitor) meet respective datasheet requirements.
What is the minimum output capacitor value required for stability with the NCV8502D80R2G?
The NCV8502D80R2G requires a minimum 10 µF low-ESR output capacitor (e.g., ceramic or tantalum) for loop stability across temperature and load, as specified in Figure 18 of the datasheet. Using <10 µF risks oscillation or poor transient response, especially at high output currents (>100 mA) or low temperatures (−40°C).
NCV8502D80R2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- 8-SOIC
NCV8502D80R2G FAQ
1.How can I place an order for NCV8502D80R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8502D80R2G 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 NCV8502D80R2G reliable?
The price and inventory of NCV8502D80R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8502D80R2G is usually 5 days.
3.What payment methods are accepted for NCV8502D80R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8502D80R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8502D80R2G?
NCV8502D80R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8502D80R2G 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 NCV8502D80R2G?
For technical support, including NCV8502D80R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8502D80R2G requirements.
6.How does Aetrix verify that NCV8502D80R2G is sourced from the original manufacturer or authorized distributors?
All NCV8502D80R2G 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 NCV8502D80R2G meets industry standards.
7.What is the process for return or replacement of NCV8502D80R2G?
All NCV8502D80R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8502D80R2G, 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 NCV8502D80R2G part is unused and in its original packaging.
Return procedure for NCV8502D80R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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