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Diodes Incorporated AP1702EWG-7
- Part No.:
- AP1702EWG-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP1702EWG-7.pdf
- Description:
- IC MPU RESET CIRC 2.93V SC59-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,902
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Product details
Overview
AP1702EWG-7 from Diodes Incorporated is a 3-pin active-high microprocessor reset supervisor IC in SC59 package, monitoring +2.93V supply with ±1.5% threshold accuracy, 240ms minimum reset timeout, 20µA typical supply current, and guaranteed valid reset output down to VCC = +1V. It provides push-pull RESET high output for reliable power-on initialization in embedded controllers and portable systems.
For engineers reviewing the AP1702EWG-7 datasheet, AP1702EWG-7 pinout, AP1702EWG-7 application, or AP1702EWG-7 equivalent, key selection criteria include reset threshold tolerance, temperature coefficient (30 ppm/°C), transient immunity (100µs @ 100mV overdrive), VCC operating range (1.0–5.5V), and lead-free SC59-3L packaging compliance.
Technical Context
The AP1702EWG-7 implements a precision bandgap reference-based reset comparator with internal delay timer, asserting RESET high when VCC rises above 2.93V and holding it for ≥240ms after VCC exceeds threshold. Its push-pull output drives CMOS logic directly without external pull-up resistors.
Designed for brownout immunity, it ignores transients ≤100µs at 100mV below threshold and guarantees correct logic state for VCC ≥1V. The reset comparator features 30 ppm/°C tempco and operates across –40°C to +105°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V ±1.5% at 25°C - ensures reliable detection of +3.0V supply brownout before system instability |
| Reset Timeout | 240ms min - provides sufficient hold time for microprocessor core and PLL lock during power-up |
| Supply Current | 20µA typ. - enables use in battery-powered devices with multi-year standby life |
| VCC Operating Range | 1.0V to 5.5V - supports operation during deep brownout and compatibility with 5V/3.3V/2.5V systems |
| Output Type | Push-pull active-high - eliminates need for external pull-up resistor and reduces BOM count |
| Tempco | 30 ppm/°C - maintains threshold stability across industrial temperature range (–40°C to +105°C) |
| Transient Immunity | 100µs max glitch duration at 100mV overdrive - prevents false resets from switching noise or ESD events |
Pinout & Package
AP1702EWG-7 is housed in a lead-free, green SC59-3L (SOT-23 compatible) surface-mount package measuring 2.90–3.10 mm × 1.30–1.70 mm × 1.00–1.30 mm, with gull-wing leads and RoHS-compliant matte tin finish.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output driver; must be low-impedance connection to system ground plane |
| 2 | VCC | Power supply input; monitors voltage level and powers internal circuitry; requires 0.1µF bypass capacitor adjacent to pin |
| 3 | RESET | Active-high push-pull reset output; drives µP reset input directly; sinks 1.2mA / sources 800µA minimum |
Key Features
| Feature | Design Value |
|---|---|
| Precision reset threshold | 2.93V ±1.5% - eliminates manual calibration and supports tight-margin 3.0V supply designs |
| Guaranteed reset validity | Down to VCC = +1V - ensures deterministic reset state during deep undervoltage conditions |
| No external components required | Self-contained supervisory function - reduces PCB area and eliminates resistor/capacitor placement errors |
| Low quiescent current | 20µA typical - extends battery life in portable instrumentation and remote sensors |
| SC59-3L lead-free package | RoHS-compliant, green, JEDEC-standard footprint - enables drop-in replacement in existing SOT-23 layouts |
Applications
| Industrial Controllers | Portable Medical Sensors |
|---|---|
Use Scenario: PLC I/O modules powered from 3.0V rails subject to intermittent brownouts during factory floor EMI events. IC Role / Device Role / Timing Role: Microprocessor reset supervisor asserting active-high RESET signal upon VCC dip below 2.93V, with 240ms timeout ensuring firmware reload completion. Use Value: Prevents corrupted register states and communication lockups by guaranteeing full reset assertion during 10–100ms line sags. |
Use Scenario: Handheld glucose meters using coin-cell batteries where supply voltage decays from 3.0V to 2.2V over operational life. IC Role / Device Role / Timing Role: Power-monitoring supervisor enabling controlled shutdown before critical ADC or display malfunction. Use Value: Maintains valid RESET output down to VCC = 1.0V, allowing safe firmware save and EEPROM write completion prior to power loss. |
| Automotive Body Control Modules | Smart Energy Meters |
Use Scenario: BCM microcontroller supplied from 3.3V LDO fed by vehicle battery with cold-crank dips to 2.8V. IC Role / Device Role / Timing Role: Brownout detector providing active-high reset to prevent erratic CAN message transmission during voltage sag. Use Value: 30 ppm/°C tempco ensures threshold stability across –40°C to +105°C ambient, avoiding false triggers in engine bay environments. |
Use Scenario: Revenue-grade meter with real-time clock and metrology ASIC requiring deterministic startup after AC power interruption. IC Role / Device Role / Timing Role: Power-on reset generator with 240ms minimum pulse width synchronizing RTC initialization and flash memory recovery. Use Value: Push-pull output eliminates external pull-up, reducing leakage paths that could compromise 10-year battery-backed RTC accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| APX810S23-30 | 2.93V threshold, 200ms timeout, SOT-23-3 package, same manufacturer, newer revision | Higher production availability; improved ESD rating (±4kV HBM); not recommended for new design per AP170x datasheet | Select if long-term supply continuity and enhanced robustness are prioritized over legacy qualification status |
| MAX809SEUR+T | 2.93V threshold, 240ms timeout, SOT-23-3, push-pull active-high, 1.2µA max quiescent current | Lower supply current enables ultra-low-power applications; different pinout (VCC/RESET/GND vs. GND/VCC/RESET) | Choose when minimizing standby current is critical and board layout allows pin reassignment |
Compared with AP1702EWG-7, APX810S23-30 offers lifecycle assurance and higher ESD immunity but shares identical electrical behavior, while MAX809SEUR+T reduces supply current by 94% at the cost of pinout incompatibility and higher unit cost.
Availability
AP1702EWG-7 is available at Aetrix Electronics and suitable for industrial controllers, portable medical sensors, automotive body control modules, and smart energy meters requiring stable component supply throughout extended production cycles.
Supply support for AP1702EWG-7 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
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and protection applications.
The AP170x series belongs to Diodes' microprocessor supervisory IC product line, designed specifically for cost-sensitive, space-constrained embedded systems requiring precise, low-power reset functionality across wide temperature ranges.
FAQ
What is the exact reset threshold voltage and tolerance for AP1702EWG-7?
The AP1702EWG-7 has a nominal reset threshold of 2.93V with ±1.5% tolerance at 25°C, confirmed in the Electrical Characteristics table on page 3 of the official datasheet. This corresponds to a guaranteed range of 2.87V to 2.99V across temperature and process variation, validated under TA = 0°C to +70°C conditions.
Does AP1702EWG-7 require an external pull-up resistor on the RESET pin?
No. AP1702EWG-7 features a push-pull output stage capable of sourcing up to 800µA and sinking up to 1.2mA, eliminating the need for an external pull-up resistor. This is explicitly stated in the General Description and verified in the VOH/VOL specifications on page 3 of the datasheet.
Can AP1702EWG-7 operate reliably during cold-crank automotive conditions?
Yes. With guaranteed operation from –40°C to +105°C junction temperature, 2.93V threshold stability (30 ppm/°C), and valid reset output down to VCC = +1V, it meets cold-crank requirements where battery voltage may dip to 2.8V for <100ms. Transient immunity data confirms no false reset for 100µs glitches at 100mV overdrive.
Is AP1702EWG-7 pin-compatible with AP1701EWG-7?
No. While both use the SC59-3L package and share identical pin numbering (GND/VCC/RESET), AP1701EWG-7 has active-low RESET output, whereas AP1702EWG-7 has active-high RESET. Swapping them without logic inversion will cause functional failure, as confirmed in the Pin Descriptions and Output Configuration sections of the datasheet.
AP1702EWG-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.93V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-59-3
AP1702EWG-7 FAQ
1.How can I place an order for AP1702EWG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1702EWG-7 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 AP1702EWG-7 reliable?
The price and inventory of AP1702EWG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1702EWG-7 is usually 5 days.
3.What payment methods are accepted for AP1702EWG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1702EWG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1702EWG-7?
AP1702EWG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1702EWG-7 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 AP1702EWG-7?
For technical support, including AP1702EWG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1702EWG-7 requirements.
6.How does Aetrix verify that AP1702EWG-7 is sourced from the original manufacturer or authorized distributors?
All AP1702EWG-7 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 AP1702EWG-7 meets industry standards.
7.What is the process for return or replacement of AP1702EWG-7?
All AP1702EWG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP1702EWG-7, 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 AP1702EWG-7 part is unused and in its original packaging.
Return procedure for AP1702EWG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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