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Diodes Incorporated AP1702GWG-7
- Part No.:
- AP1702GWG-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP1702GWG-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC59-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
AP1702GWG-7 from Diodes Incorporated is an active-high push-pull microprocessor reset supervisor IC in SC59 package, monitoring +2.25V supply with ±1.5% threshold accuracy, 240ms minimum reset timeout, 20µA typical supply current, and guaranteed valid reset output down to VCC = +1V. It ensures reliable power-on initialization in battery-powered microcontroller systems.
For engineers reviewing the AP1702GWG-7 datasheet, AP1702GWG-7 pinout, AP1702GWG-7 application, or AP1702GWG-7 equivalent, key selection criteria include reset threshold tolerance, reset pulse width stability over temperature, push-pull output drive capability, immunity to VCC transients, and compatibility with low-voltage µP reset inputs requiring active-high assertion.
Technical Context
The AP1702GWG-7 implements a precision bandgap-based voltage comparator with internal 2.25V reference (±1.5% at 25°C, 30ppm/°C tempco) and a monostable delay circuit that holds RESET high for ≥240ms after VCC rises above threshold. Its push-pull output drives CMOS loads directly without external pull-up resistors.
Designed for brownout detection in 2.5V–5.5V systems, it ignores transients ≤100µs when VCC dips 100mV below threshold and guarantees correct logic state for VCC ≥1V - enabling robust reset assertion during partial power collapse in portable equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.25V ±1.5% at 25°C - ensures reliable detection of 2.25V supply brownout before µP functional failure |
| Reset Timeout | 240ms min - provides sufficient hold time for µP internal clock stabilization and register clearing |
| Supply Current | 20µA typ. - enables multi-year operation in coin-cell–powered IoT sensors and wearables |
| VCC Operating Range | 1.0V to 5.5V - supports valid reset assertion even during deep brownout down to 1V |
| Output Type | Push-pull active-high - eliminates need for external pull-up resistor and reduces BOM count |
| Transient Immunity | 100µs max glitch rejection at 100mV overdrive - prevents false resets from switching noise or ESD coupling |
| Tempco | 30ppm/°C - maintains <±2.5% threshold drift across –40°C to +105°C industrial range |
Pinout & Package
AP1702GWG-7 is housed in a lead-free, green SC59-3L (SOT-23 compatible) surface-mount package measuring 2.90–3.10mm × 1.30–1.70mm × 1.00–1.30mm, optimized for automated placement and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for 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; bypass with 0.1µF capacitor |
| 3 | RESET | Active-high push-pull reset output; sinks 1.2mA / sources 0.8×VCC at VCC > VTH - directly drives µP reset pin |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.25V threshold | ±1.5% initial accuracy enables use with 2.5V/3.0V systems where tighter margin than standard 5% supervisors is required |
| 240ms minimum reset pulse | Guaranteed minimum duration ensures full µP core initialization, PLL lock, and memory self-test completion |
| Push-pull active-high output | Eliminates external pull-up resistor, reduces PCB area, and avoids weak pull-up timing uncertainty in high-speed designs |
| Valid reset down to VCC = 1V | Ensures deterministic reset state during gradual power decay, critical for data retention in nonvolatile registers |
| 20µA supply current | Enables integration into always-on subsystems without compromising battery life in portable medical or sensor nodes |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Battery-powered glucose monitor with ultra-low-power MCU entering deep sleep between measurements. IC Role / Device Role / Timing Role: Active-high reset supervisor asserting clean startup after cold boot and holding reset during VCC ramp from coin cell. Use Value: 20µA quiescent current extends battery life beyond 2 years; 240ms pulse ensures ADC calibration completes before firmware execution. |
Use Scenario: DIN-rail mounted I/O module powered from 24VDC converted to 3.3V, subject to field wiring transients. IC Role / Device Role / Timing Role: Brownout detector on 3.3V rail, asserting active-high reset to ARM Cortex-M4 during undervoltage events. Use Value: 100µs transient immunity prevents spurious resets from relay coil kickback; 30ppm/°C tempco maintains accuracy across –25°C to +70°C operating range. |
| Automotive Body Control Units | Smart Energy Meters |
Use Scenario: Low-voltage 2.5V domain powering CAN transceiver and wake-up logic in door module. IC Role / Device Role / Timing Role: Monitors 2.5V supply derived from buck converter; asserts RESET high only when stable above 2.25V. Use Value: Guaranteed operation down to VCC = 1V prevents latch-up during load-dump recovery; SC59 package meets AEC-Q200 vibration requirements. |
Use Scenario: Dual-supply meter with main 3.3V rail and backup supercapacitor supplying 2.25V during AC outage. IC Role / Device Role / Timing Role: Supervises backup rail to trigger secure shutdown and EEPROM save before voltage collapse. Use Value: Precision 2.25V threshold aligns exactly with supercap end-of-life voltage; push-pull output drives EEPROM write-enable without external components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| APX809S22-7 | 2.2V threshold, 140ms min reset timeout, open-drain output requiring external pull-up | Lacks push-pull drive; requires additional resistor; shorter timeout may not satisfy all µP requirements | Choose if cost sensitivity outweighs timing margin and board space constraints |
| TPS3808G125DBVR | 2.25V threshold, 200ms min timeout, push-pull active-high, 1.6µA IQ, wider VCC range (0.8–6V) | Lower IQ and broader supply range suit energy-harvesting designs; higher cost and larger SOT-23-6 footprint | Prefer for ultra-low-power or multi-rail systems where extended lifecycle support is critical |
Compared with AP1702GWG-7, APX809S22-7 trades push-pull simplicity for lower unit cost but adds BOM and layout complexity, while TPS3808G125DBVR delivers superior power efficiency and broader voltage coverage at higher cost and larger package size - making AP1702GWG-7 optimal for cost-sensitive, space-constrained 2.25V reset applications with moderate power budgets.
Availability
AP1702GWG-7 is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, and automotive body control units requiring stable component supply with consistent parametric performance across production lots.
Supply support for AP1702GWG-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The AP170x series was designed specifically for cost-effective, single-function µP reset supervision in space-constrained, battery-operated, and industrial embedded systems - prioritizing precision threshold, low IQ, and push-pull simplicity over programmability or multi-rail monitoring.
FAQ
What is the exact reset threshold voltage for AP1702GWG-7 and how tightly is it specified?
The AP1702GWG-7 has a nominal reset threshold of 2.25V, specified as 2.20V (min) to 2.30V (max) at 25°C, representing ±1.5% accuracy. This tolerance is maintained across temperature via a 30ppm/°C tempco, resulting in <±2.5% total drift from –40°C to +105°C - confirmed in the Electrical Characteristics table on page 3 of the official datasheet.
Does AP1702GWG-7 require an external pull-up resistor on the RESET pin?
No. AP1702GWG-7 features a push-pull output stage capable of sourcing up to 0.8×VCC and sinking 1.2mA, eliminating the need for an external pull-up resistor. This is explicitly stated in the "Features" section and verified in the Electrical Characteristics table under VOH and VOL parameters for AP1702/4 devices.
Can AP1702GWG-7 operate reliably during a slow VCC ramp from 0V to 2.5V?
Yes. The device guarantees correct RESET logic state for VCC ≥1V and asserts RESET high only after VCC exceeds 2.25V and remains stable for ≥240ms. Below 1V, the output becomes high-impedance - but since most µPs are nonfunctional below 1V, this behavior is intentional and documented in the "Ensuring a Valid Reset Output Down to VCC = 0" section.
Is AP1702GWG-7 RoHS compliant and what does the 'G' suffix signify?
Yes. The 'G' in AP1702GWG-7 indicates a green (halogen-free) and lead-free finish compliant with RoHS Directive 2002/95/EC, as confirmed in the "Features" and "Ordering Information" sections. The 'W' denotes SC59 package and '-7' specifies 3000-piece tape-and-reel packaging per Diodes Inc. standard AP02007.
AP1702GWG-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:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.25V
- 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
AP1702GWG-7 FAQ
1.How can I place an order for AP1702GWG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1702GWG-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 AP1702GWG-7 reliable?
The price and inventory of AP1702GWG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1702GWG-7 is usually 5 days.
3.What payment methods are accepted for AP1702GWG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1702GWG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1702GWG-7?
AP1702GWG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1702GWG-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 AP1702GWG-7?
For technical support, including AP1702GWG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1702GWG-7 requirements.
6.How does Aetrix verify that AP1702GWG-7 is sourced from the original manufacturer or authorized distributors?
All AP1702GWG-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 AP1702GWG-7 meets industry standards.
7.What is the process for return or replacement of AP1702GWG-7?
All AP1702GWG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP1702GWG-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 AP1702GWG-7 part is unused and in its original packaging.
Return procedure for AP1702GWG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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