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onsemi NCV8502D80G
- Part No.:
- NCV8502D80G
- Manufacturer:
- onsemi
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
NCV8502D80G.pdf
- Description:
- IC REG LINEAR 8V 150MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,785
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Product details
Overview
NCV8502D80G from onsemi is an automotive-grade 8.0 V fixed-output LDO linear regulator delivering 150 mA with ±2.0% output accuracy, 0.6 V max dropout at full load, and 90 µA quiescent current. It integrates active RESET (functional down to 1.0 V), programmable DELAY timing, and FLAG early-warning monitor for microprocessor power management in battery-powered automotive ECUs.
For engineers reviewing the NCV8502D80G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, 60 V load dump tolerance, −15 V reverse voltage protection, SO-8 package footprint, and dual-voltage monitoring capability via MON/FLAG pins.
Technical Context
The NCV8502D80G implements a bandgap-referenced error amplifier with thermal shutdown, current limiting, and reverse-battery protection. Its RESET circuit operates independently of regulation status and remains valid even when VOUT drops to 1.0 V - critical for fail-safe automotive power sequencing.
The FLAG monitor compares MON pin voltage against a 1.20 V internal reference with 20–100 mV hysteresis; threshold is externally adjustable via resistor divider. DELAY timing is set by external capacitor charging at 2.5 µA typical, enabling precise reset delay control without internal RC variation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 8.0 V ±2.0% - ensures stable MCU core/peripheral rail under wide input (6.0–26 V) and temperature (−40°C to +150°C). |
| Max Output Current | 150 mA - supports low-power microcontrollers, CAN transceivers, and sensor interfaces without external pass devices. |
| Dropout Voltage | ≤600 mV at 150 mA - enables operation from 8.6 V input in cold-crank conditions (e.g., 12 V system at 6.5 V battery). |
| Quiescent Current | 90 µA at 100 µA load - extends battery life in always-on automotive modules (e.g., body control units, telematics). |
| RESET Threshold | 7.05 V (rising), 7.00 V (falling) - provides 8.75% hysteresis to prevent chatter during brownout recovery. |
| FLAG Threshold | 1.20 V ±0.05 V on MON pin - triggers early warning before RESET, allowing firmware-controlled graceful shutdown. |
| Transient Protection | +60 V peak (load dump), −15 V reverse battery - meets ISO 7637-2 Pulse 5a/b and SAE J1128 requirements. |
Pinout & Package
NCV8502D80G uses the SO-8 NB (Case 751-07) package: 4.9 mm × 3.9 mm × 1.75 mm body, exposed pad not present, Pb-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Input supply connection | Accepts 6.0–26 V DC; withstands +60 V transients and −15 V reverse polarity. |
| 2 - MON | Monitor comparator input | Configurable early-warning trigger point; connect to VOUT or external divider for custom threshold. |
| 3 - RADJ | Reset adjust reference | Grounded for default 7.0 V RESET threshold; connect resistor divider to lower threshold for tighter margin. |
| 4 - DELAY | Reset timing capacitor node | Sinks 2.5 µA typical to charge external capacitor; sets RESET assertion delay time (e.g., 33 nF → ~24 ms). |
| 5 - GND | Power ground reference | All GND pins must be connected to low-impedance system ground plane for noise immunity and thermal performance. |
| 6 - RESET | Open-collector reset output | Active-low signal valid down to VOUT = 1.0 V; requires external pull-up for logic-level compatibility. |
| 7 - FLAG | Open-collector flag output | Asserts low when MON falls below threshold; gives MCU time to save state before RESET occurs. |
| 8 - VOUT | Regulated 8.0 V output | ±2.0% accuracy over temp/load; requires ≥10 µF ceramic output capacitor for stability per Figure 18. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualified | Rated for −40°C to +125°C ambient operation - validated for engine bay and chassis-mounted automotive applications. |
| Integrated fault protection | Thermal shutdown (>150°C), short-circuit current limit (151–300 mA), reverse-battery, and load-dump hardened design. |
| Programmable RESET delay | External capacitor sets delay time (tDELAY = CDELAY × (VDT − VRESET_LOW) / ICHARGE) - eliminates need for discrete timing components. |
| Early-warning FLAG monitor | Provides deterministic pre-RESET notification via open-drain output - enables controlled data save, peripheral disable, and safe state entry. |
| Low-noise micropower operation | 90 µA IQ at light load and 12 mA at 150 mA - minimizes standby power while maintaining fast transient response. |
Applications
| Body Control Module (BCM) | Advanced Driver Assistance System (ADAS) Camera ECU |
|---|---|
Use Scenario: Powering 8-bit/32-bit MCUs and LIN transceivers in door modules, lighting controllers, and seat memory systems. IC Role / Device Role / Timing Role: Primary 8.0 V LDO supplying MCU I/O and analog peripherals; RESET ensures deterministic boot after ignition cycle; FLAG enables EEPROM write completion before power loss. Use Value: Eliminates external reset IC and timing capacitor, reduces BOM count by 2–3 parts, and guarantees startup integrity under cold-crank (6.5 V) and load-dump (60 V) stress. | Use Scenario: Supplying image signal processor (ISP) and serializer in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Stable 8.0 V rail for ISP core logic; FLAG warns of impending brownout due to cable voltage drop; RESET forces clean shutdown before corrupted frame capture. Use Value: Prevents image corruption and flash memory corruption during vehicle stop/start cycles; meets ASIL-B functional safety timing constraints via guaranteed 1.0 V RESET validity. |
| Telematics Control Unit (TCU) | Electric Power Steering (EPS) Sensor Interface |
Use Scenario: Powering cellular modem, GNSS receiver, and CAN controller in always-connected fleet management units. IC Role / Device Role / Timing Role: Always-on 8.0 V regulator with ultra-low IQ; MON pin tied to battery voltage to trigger FLAG on gradual discharge; RESET asserts at final undervoltage. Use Value: Extends backup battery runtime by >30% vs. standard LDOs; enables GPS position logging and last-known-location upload prior to shutdown. | Use Scenario: Conditioning power for torque and angle sensors in EPS motor control assemblies. IC Role / Device Role / Timing Role: Precision 8.0 V supply for Hall-effect and resolver interface ICs; RESET synchronizes sensor initialization with MCU boot; FLAG alerts on supply sag during high-torque assist. Use Value: Ensures sensor self-test completes before steering assist activation; avoids false torque errors caused by marginal supply during dynamic load steps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8503D80G | Same SO-8 package, identical 8.0 V output, but adds adjustable RESET threshold via RADJ and enhanced ESD (3 kV HBM). | Supports tighter reset margins (e.g., 7.5 V) for systems requiring higher undervoltage holdup; otherwise functionally interchangeable. | Select NCV8503D80G if RESET threshold tuning or higher ESD robustness is required; NCV8502D80G suffices for standard 7.0 V reset. |
| TLV70780PDBVR | Single-channel 8.0 V LDO in SOT-23-5; 200 mA output, 25 µA IQ, but no RESET/FLAG features and only 40 V max input. | Lacks integrated monitoring functions; requires external reset IC and timing circuit; unsuitable for automotive load-dump environments. | Use TLV70780PDBVR only in cost-sensitive, non-automotive, low-transient industrial applications where RESET/FLAG are handled elsewhere. |
Compared with NCV8503D80G, the NCV8502D80G offers identical core regulation and protection but omits fine RESET adjustment - simplifying design for standard automotive thresholds. Versus TLV70780PDBVR, it trades smaller footprint for integrated fault-aware power sequencing essential in ASIL-B systems.
Availability
NCV8502D80G is available at Aetrix Electronics and suitable for automotive body electronics, ADAS camera ECUs, telematics control units, and electric power steering sensor interfaces requiring stable component supply across extended temperature and harsh electrical environments.
Supply support for NCV8502D80G 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 for automotive, industrial, cloud, and IoT applications.
The NCV8502 series belongs to onsemi's automotive power management portfolio, designed specifically for fault-tolerant, AEC-Q100-compliant LDO regulation in engine control, chassis, and infotainment systems.
FAQ
What is the maximum input voltage rating for the NCV8502D80G?
The NCV8502D80G supports a continuous DC input voltage range of −15 V to +48 V, with peak transient tolerance up to +60 V (per ISO 7637-2 Pulse 5a). This rating enables direct connection to 12 V and 24 V automotive batteries including load-dump events without external clamping diodes.
Does the NCV8502D80G require an external capacitor on the DELAY pin?
Yes, the NCV8502D80G requires an external capacitor between the DELAY pin and GND to set the RESET assertion delay time. Typical values range from 10 nF to 100 nF; for example, a 33 nF capacitor yields ~24 ms delay using the device's 2.5 µA charge current and 1.8 V switching threshold.
Can the FLAG output of the NCV8502D80G drive a microcontroller GPIO directly?
Yes, the FLAG output is an open-collector NPN transistor compatible with 1.8 V, 3.3 V, and 5 V logic families. A pull-up resistor (typically 10 kΩ to VCC) is required; the output sinks up to 1 mA with ≤0.4 V saturation voltage at 1.0 mA, ensuring reliable low-level signaling to MCU interrupt pins.
Is the NCV8502D80G pin-compatible with other variants in the NCV8502 family?
Yes, all SO-8 variants of the NCV8502 family - including NCV8502D25G, NCV8502D33G, NCV8502D50G, NCV8502D80G, and NCV8502D100G - share identical pinout and package (Case 751-07). Only the output voltage differs; no PCB redesign is needed when swapping between fixed-output versions.
What thermal derating applies to the NCV8502D80G in SO-8 package at 150 mA load?
With RJA = 165°C/W and maximum junction temperature TJ = 150°C, the NCV8502D80G in SO-8 requires ambient temperature ≤75°C at full 150 mA load with 14 V input (PD ≈ 0.9 W). For sustained high-temperature operation, reduce load current or add copper pour under pin 5 (GND) to improve heat spreading.
NCV8502D80G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- 8-SOIC
NCV8502D80G FAQ
1.How can I place an order for NCV8502D80G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8502D80G 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 NCV8502D80G reliable?
The price and inventory of NCV8502D80G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8502D80G is usually 5 days.
3.What payment methods are accepted for NCV8502D80G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8502D80G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8502D80G?
NCV8502D80G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8502D80G 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 NCV8502D80G?
For technical support, including NCV8502D80G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8502D80G requirements.
6.How does Aetrix verify that NCV8502D80G is sourced from the original manufacturer or authorized distributors?
All NCV8502D80G 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 NCV8502D80G meets industry standards.
7.What is the process for return or replacement of NCV8502D80G?
All NCV8502D80G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8502D80G, 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 NCV8502D80G part is unused and in its original packaging.
Return procedure for NCV8502D80G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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