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Diodes Incorporated AP1701GWG-7
- Part No.:
- AP1701GWG-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP1701GWG-7.pdf
- Description:
- IC MPU RESET CIRC 2.25V SC59-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,992
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Product details
Overview
AP1701GWG-7 from Diodes Incorporated is a 3-pin microprocessor reset supervisor IC with active-low push-pull RESET output, 2.25 V reset threshold (±1.5% at 25°C), 240 ms minimum reset timeout, 20 µA typical supply current, and guaranteed operation down to VCC = 1 V. It monitors +2.5V/+3.0V/+3.3V/+5V power rails in embedded microcontroller systems requiring reliable brownout detection.
For engineers reviewing the AP1701GWG-7 datasheet, AP1701GWG-7 pinout, AP1701GWG-7 application, or AP1701GWG-7 equivalent, key selection criteria include reset threshold accuracy (±1.5%), immunity to sub-100 µs VCC transients, push-pull output drive capability (1.2 mA sink), SC59 package compatibility, and legacy design support where APX809/810 migration is not yet feasible.
Technical Context
The AP1701GWG-7 integrates a precision voltage reference, comparator with 30 ppm/°C tempco, and a monostable delay circuit to generate a minimum 240 ms active-low reset pulse after VCC rises above 2.25 V. Its push-pull output eliminates external pull-up resistors and ensures valid logic levels across full VCC range (1.0–5.5 V).
Designed for brownout immunity, it ignores negative-going VCC transients ≤100 µs when overdrive is ≤100 mV below threshold. The internal timer resets on every VCC dip below threshold, guaranteeing reset assertion during sustained undervoltage conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.25 V ±1.5% at 25°C - ensures reliable detection of VCC drop below safe operating level for 2.5V systems |
| Reset Timeout | 240 ms min - holds µP in reset long enough for power stabilization and oscillator startup |
| Supply Current | 20 µA typ. - enables use in battery-powered devices without significant standby drain |
| VCC Range | 1.0 V to 5.5 V - guarantees RESET validity down to 1 V, critical for graceful shutdown sequencing |
| Output Type | Push-pull active-low - drives RESET directly without external components; sinks 1.2 mA at VCC ≥ VTH |
| Transient Immunity | Rejects 100 µs, 100 mV VCC glitches - prevents spurious resets during digital noise events |
| Tempco | 30 ppm/°C - maintains threshold stability across -40°C to +105°C industrial temperature range |
Pinout & Package
AP1701GWG-7 is housed in an SC59-3L (SOT-23 compatible) 3-pin surface-mount package with gull-wing leads, RoHS-compliant green finish, and JEDEC-standard footprint (2.90 × 1.30 × 1.00 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output stage; must be low-impedance connection |
| 2 | VCC | Power supply input; operates from 1.0 V to 5.5 V; bypass capacitor required at pin |
| 3 | RESET | Active-low push-pull reset output; sinks 1.2 mA minimum at VCC ≥ VTH; no external pull-up needed |
Key Features
| Feature | Design Value |
|---|---|
| Precision reset threshold | 2.25 V ±1.5% at 25°C with 30 ppm/°C drift - eliminates need for calibration in 2.5V system monitoring |
| No external components | Self-contained reset generator - reduces BOM count and PCB area vs. discrete RC+comparator solutions |
| Guaranteed reset validity to 1 V | RESET remains logic-low down to VCC = 1 V - supports controlled shutdown before power collapse |
| Glitch-immune comparator | Rejects transients ≤100 µs at 100 mV overdrive - avoids false resets in noisy digital environments |
| Lead-free & green packaging | SC59-3L with matte-tin lead finish per RoHS Directive Annex exemptions - compliant for industrial shipping |
Applications
| Industrial PLC Controllers | Portable Medical Sensors |
|---|---|
Use Scenario: Monitoring 3.3 V supply in programmable logic controller I/O modules during factory floor voltage fluctuations. IC Role / Device Role / Timing Role: Microprocessor reset supervisor asserting active-low RESET during brownout to prevent firmware corruption. Use Value: 240 ms timeout ensures CPU reset completes before fieldbus communication reinitializes; push-pull output drives optocoupler input directly. | Use Scenario: Power supervision in handheld ECG sensor with Li-ion battery discharge from 4.2 V to 2.8 V. IC Role / Device Role / Timing Role: Voltage monitor triggering controlled shutdown when supply falls below 2.25 V threshold. Use Value: 20 µA quiescent current extends battery life; guaranteed RESET validity to 1 V enables safe state capture before power loss. |
| Automotive Body Control Modules | Smart Energy Meters |
Use Scenario: Supervising 5 V rail in BCM microcontroller during cold-crank battery dips. IC Role / Device Role / Timing Role: Brownout detector holding MCU in reset until stabilized 5 V supply resumes after engine start. Use Value: Immunity to 100 µs transients prevents false resets during alternator switching noise; -40°C to +105°C rating matches under-hood requirements. | Use Scenario: Reset coordination between metrology SoC and secure element in ANSI C12.22-compliant meter. IC Role / Device Role / Timing Role: Synchronized power-on reset generator ensuring deterministic boot sequence across dual-voltage domains. Use Value: Precision 2.25 V threshold aligns with 2.5 V secure element VDD tolerance; SC59 package fits constrained meter PCB real estate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| APX809S23-22 | 2.2 V threshold, 140 ms timeout, 0.5 µA max ICC, SOT23-3 package | Lower quiescent current and shorter timeout; designed for ultra-low-power IoT nodes | Select when battery life >2 years required and reset timing margin allows <240 ms |
| TPS3808G12DBVR | 1.22 V threshold, adjustable via external resistor, 200 ms timeout, 1.1 µA ICC | Configurable threshold enables multi-rail monitoring; requires external component | Select when system uses non-standard supply voltages or needs shared reset across multiple rails |
Compared with AP1701GWG-7, APX809S23-22 offers superior battery efficiency but reduced noise immunity and shorter reset hold time, while TPS3808G12DBVR provides threshold flexibility at the cost of added BOM complexity and lower drive strength.
Availability
AP1701GWG-7 is available at Aetrix Electronics and suitable for industrial PLC controllers, portable medical sensors, automotive body control modules, and smart energy meters requiring stable component supply for legacy designs not yet migrated to APX809/810.
Supply support for AP1701GWG-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 automotive markets.
The AP170x series belongs to Diodes' microprocessor supervisory product line, engineered specifically for cost-sensitive, space-constrained embedded systems requiring precise, single-supply reset functionality without external passive components.
FAQ
What is the function of the RESET pin on AP1701GWG-7?
The RESET pin is an active-low push-pull output that asserts logic-low when VCC falls below 2.25 V and remains low for ≥240 ms after VCC rises above threshold. It sinks up to 1.2 mA at VCC ≥ VTH and requires no external pull-up resistor, directly interfacing with µP reset inputs or logic gates.
Can AP1701GWG-7 operate with a 2.5 V supply?
Yes - AP1701GWG-7 is specified for VCC from 1.0 V to 5.5 V and features a 2.25 V reset threshold optimized for 2.5 V systems. Its guaranteed operation down to 1 V ensures valid reset signaling even during deep brownout, and its 30 ppm/°C tempco maintains accuracy across industrial temperature ranges.
Is AP1701GWG-7 pin-compatible with APX809S23-22?
No - although both use SC59/SOT23-3 packages and share identical pinout (GND-VCC-RESET), AP1701GWG-7 has fixed 2.25 V threshold and 240 ms timeout, whereas APX809S23-22 specifies 2.2 V threshold and 140 ms timeout. Functional substitution requires validation of timing and voltage margin in the target application.
Why does the datasheet state "NOT RECOMMENDED FOR NEW DESIGN"?
This designation reflects Diodes Incorporated's product lifecycle policy: AP1701GWG-7 remains fully functional and supported, but new designs should use the APX809/810 family, which offers improved specs (lower ICC, tighter threshold tolerance, enhanced ESD robustness) and ongoing roadmap support. Legacy designs may continue using AP1701GWG-7 with full datasheet compliance.
AP1701GWG-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:
- 2.25V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-59-3
AP1701GWG-7 FAQ
1.How can I place an order for AP1701GWG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1701GWG-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 AP1701GWG-7 reliable?
The price and inventory of AP1701GWG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1701GWG-7 is usually 5 days.
3.What payment methods are accepted for AP1701GWG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1701GWG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1701GWG-7?
AP1701GWG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1701GWG-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 AP1701GWG-7?
For technical support, including AP1701GWG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1701GWG-7 requirements.
6.How does Aetrix verify that AP1701GWG-7 is sourced from the original manufacturer or authorized distributors?
All AP1701GWG-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 AP1701GWG-7 meets industry standards.
7.What is the process for return or replacement of AP1701GWG-7?
All AP1701GWG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP1701GWG-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 AP1701GWG-7 part is unused and in its original packaging.
Return procedure for AP1701GWG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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