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Diodes Incorporated AP1701FWL-7
- Part No.:
- AP1701FWL-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP1701FWL-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC59-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,916
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Product details
Overview
AP1701FWL-7 from Diodes Incorporated is a 3-pin active-low 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 reset validity down to VCC = +1V. It provides precision brownout detection for embedded microcontrollers in portable and automotive systems.
For engineers reviewing the AP1701FWL-7 datasheet, AP1701FWL-7 pinout, AP1701FWL-7 application, or AP1701FWL-7 equivalent, key selection criteria include reset threshold tolerance (±1.5%), push-pull output drive capability (1.2mA sink), transient immunity (100µs/100mV), operating junction temperature range (–40°C to +105°C), and RoHS-compliant lead-free SC59 packaging.
Technical Context
The AP1701FWL-7 implements a precision voltage comparator with internal reference and a 240ms reset timeout timer. Its reset assertion is triggered when VCC falls below 2.25V (typ.), and it holds RESET low for ≥240ms after VCC rises above threshold.
Designed for immunity to fast VCC transients, it ignores negative-going glitches ≤100µs at 100mV overdrive. The push-pull output ensures defined logic states across full VCC range (1.0V–5.5V), with VOL ≤0.3V at ISINK = 1.2mA and VOH ≥0.8VCC at ISOURCE = 500µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.25V (typ.), ±1.5% over temp - ensures reliable brownout detection for 2.5V/3.3V systems with margin |
| Reset Timeout | 240ms min - guarantees sufficient processor initialization time after power recovery |
| Supply Current | 20µA (typ.) - enables battery longevity in portable equipment |
| VCC Operating Range | 1.0V to 5.5V - supports valid reset assertion even during deep brownout |
| Output Type | Push-pull active-low - eliminates external pull-up resistor and ensures rail-to-rail logic levels |
| Tempco | 30 ppm/°C - maintains threshold stability across industrial temperature range |
Pinout & Package
Package: SC59-3L (3-pin surface-mount, lead-free, RoHS-compliant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output stage |
| 2 | VCC | Power supply input; device operates from 1.0V–5.5V and monitors this rail |
| 3 | RESET | Active-low push-pull reset output; sinks ≥1.2mA, drives low to ≤0.3V at VCC ≥ VTH |
Key Features
| Feature | Design Value |
|---|---|
| Precision threshold with low tempco | 2.25V ±1.5% over –40°C to +105°C - reduces system-level margin requirements |
| No external components required | Self-contained reset generation - eliminates R/C network, saving PCB area and BOM cost |
| Guaranteed reset validity to VCC = 1V | RESET remains logic-low down to 1V supply - ensures deterministic state during deep undervoltage |
| Transient immunity | Immune to 100µs/100mV VCC glitches - prevents spurious resets in noisy power environments |
Applications
| Portable Medical Monitors | Industrial PLC Controllers |
|---|---|
|
Use Scenario: Battery-powered ECG and pulse oximeter units requiring reliable startup and brownout recovery. IC Role / Device Role / Timing Role: Microprocessor reset supervisor asserting active-low signal during VCC dip below 2.25V. Use Value: 20µA quiescent current extends battery life; 240ms timeout ensures full MCU boot sequence completion. |
Use Scenario: DIN-rail mounted programmable logic controllers exposed to 24V supply fluctuations. IC Role / Device Role / Timing Role: Power-monitoring supervisor interfacing with ARM Cortex-M7 MCU reset input. Use Value: Push-pull output drives reset line without pull-up; 30 ppm/°C tempco maintains accuracy across wide ambient range. |
| Automotive Body Control Modules | Smart Energy Meters |
|
Use Scenario: 12V-to-3.3V powered BCMs subject to load-dump and cold-crank transients. IC Role / Device Role / Timing Role: Brownout detector preventing corrupted firmware execution during engine start. Use Value: Immunity to 100µs/100mV VCC glitches avoids false resets; SC59 package meets AEC-Q200 thermal cycling requirements. |
Use Scenario: Revenue-grade electricity meters with tamper-resistant firmware and long field lifetime. IC Role / Device Role / Timing Role: Supervisor ensuring secure boot integrity after AC power interruption. Use Value: ±1.5% threshold accuracy guarantees reset at precisely 2.25V - critical for meter calibration stability. |
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 | 2.2V fixed threshold, 140ms timeout, SOT23-3 package, 1.6µA ICC | Lower supply current but shorter timeout; not drop-in due to different pinout (RESET on pin 3 vs. AP1701FWL-7 pin 3) | Preferred for ultra-low-power designs where 140ms suffices and SOT23 layout allows |
| TPS3808G12DBVR | 1.23V adjustable threshold via external resistor, 200ms timeout, 2.5µA ICC, enable input | Requires external resistor network; offers enable control absent in AP1701FWL-7 | Selected when adjustable threshold or controlled enable functionality is required |
Compared with APX809S23-22 and TPS3808G12DBVR, the AP1701FWL-7 delivers higher reset timeout (240ms vs. 140ms/200ms) and tighter threshold accuracy (±1.5% vs. ±2.5%/±0.5% with external resistor), making it suitable for systems demanding robust power-up sequencing and precise brownout response.
Availability
AP1701FWL-7 is available at Aetrix Electronics and suitable for portable medical monitors, industrial PLC controllers, and automotive body control modules requiring stable component supply and long-term lifecycle support.
Supply support for AP1701FWL-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.
The AP170x series belongs to Diodes' microprocessor supervisory product line, designed specifically for cost-sensitive, space-constrained embedded systems requiring precision voltage monitoring and deterministic reset behavior.
FAQ
Is AP1701FWL-7 pin-compatible with AP1701AW?
Yes - both use identical SC59-3L package and share identical pin 1 (GND), pin 2 (VCC), pin 3 (RESET) assignments. The "L" suffix denotes lead-free finish, while "W" indicates SC59 packaging; no functional or mechanical differences affect pin compatibility.
What is the maximum VCC voltage the AP1701FWL-7 can withstand?
The absolute maximum VCC rating is +6.0V (with respect to GND). Operation beyond 5.5V is not specified, and sustained exposure above 6.0V may cause permanent damage per Absolute Maximum Ratings table on page 3 of the datasheet.
Does AP1701FWL-7 require an external bypass capacitor?
Yes - a 0.1µF ceramic capacitor placed between VCC and GND, as close as possible to the IC pins, is recommended to enhance immunity to fast VCC transients and ensure stable operation per Typical Application Circuit on page 4.
Can AP1701FWL-7 be used in automotive applications?
Yes - it operates across –40°C to +105°C junction temperature, features transient immunity suitable for load-dump conditions, and is qualified for lead-free, RoHS-compliant manufacturing. However, formal AEC-Q100 qualification is not claimed; design validation per vehicle-specific requirements is advised.
AP1701FWL-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:
- 2.63V
- 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
AP1701FWL-7 FAQ
1.How can I place an order for AP1701FWL-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1701FWL-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 AP1701FWL-7 reliable?
The price and inventory of AP1701FWL-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1701FWL-7 is usually 5 days.
3.What payment methods are accepted for AP1701FWL-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1701FWL-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1701FWL-7?
AP1701FWL-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1701FWL-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 AP1701FWL-7?
For technical support, including AP1701FWL-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1701FWL-7 requirements.
6.How does Aetrix verify that AP1701FWL-7 is sourced from the original manufacturer or authorized distributors?
All AP1701FWL-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 AP1701FWL-7 meets industry standards.
7.What is the process for return or replacement of AP1701FWL-7?
All AP1701FWL-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP1701FWL-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 AP1701FWL-7 part is unused and in its original packaging.
Return procedure for AP1701FWL-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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