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Diodes Incorporated AP1701FWG-7
- Part No.:
- AP1701FWG-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP1701FWG-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC59-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
AP1701FWG-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 and power-on reset assertion.
For engineers reviewing the AP1701FWG-7 datasheet, AP1701FWG-7 pinout, AP1701FWG-7 application, or AP1701FWG-7 equivalent, this page delivers verified electrical parameters, SC59 package mapping, functional role in µP power sequencing, and validated alternatives for legacy design support and obsolescence mitigation.
Technical Context
The AP1701FWG-7 integrates a precision voltage comparator with temperature-compensated reference (30 ppm/°C tempco), internal delay timer, and push-pull output driver. It asserts RESET low when VCC falls below 2.25 V and holds it active for ≥240 ms after VCC rises above threshold.
Designed for immunity to fast VCC transients, it ignores negative-going glitches ≤100 µs at 100 mV overdrive and guarantees valid logic states down to VCC = 1 V. Its no-external-components architecture eliminates trimming resistors and reduces BOM count in space-constrained portable and automotive control units.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.25 V ±1.5% at 25°C - precisely matches 2.5V system brownout margin without external scaling |
| Reset Timeout | 240 ms min - ensures full µP initialization before release, exceeding JEDEC JESD8-12B requirements |
| Supply Current | 20 µA typ. - enables multi-year battery life in always-on monitoring circuits |
| VCC Operating Range | 1.0 V to 5.5 V - supports valid reset assertion during deep brownout and post-power-up ramp |
| Output Type | Push-pull active-low - drives CMOS inputs directly without pull-up resistor, reducing leakage and board area |
| Transient Immunity | 100 µs max glitch rejection at 100 mV overdrive - prevents false resets from switching noise on shared power rails |
| Tempco | 30 ppm/°C - maintains <±3% threshold drift across –40°C to +105°C junction range |
Pinout & Package
AP1701FWG-7 is housed in a lead-free, green SC59-3L (SOT-23 compatible) surface-mount package with 2.90–3.10 mm length, 1.50–1.70 mm width, and 1.00–1.30 mm height. Pin 1 = GND, Pin 2 = VCC, Pin 3 = RESET (active-low push-pull).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Reference ground for internal comparator and output driver; must be low-impedance connection to system ground plane |
| 2 | VCC | Primary power input; supplies internal reference, comparator, and output stage; bypass with 0.1 µF ceramic capacitor |
| 3 | RESET | Active-low push-pull output; sinks ≥1.2 mA at VOL ≤ 0.3 V (VCC ≥ VTH min); no external pull-up required |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.25 V threshold | ±1.5% tolerance at 25°C enables direct use with 2.5V systems without calibration or external dividers |
| 240 ms guaranteed reset pulse | Meets or exceeds µP reset timing requirements per Intel/ARM boot specifications for stable core initialization |
| 20 µA supply current | Reduces standby power in battery-backed controllers by >95% versus discrete reset solutions |
| VCC = 1 V reset validity | Ensures deterministic reset state during ultra-low-voltage brownout, preventing undefined µP behavior |
| SC59-3L green package | RoHS-compliant, halogen-free construction with thermal pad compatibility for high-reliability industrial reflow |
Applications
| Industrial PLC Controllers | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Power monitoring during cold-crank battery dip (6–9 V) and ignition-switched 12 V rail transitions. IC Role / Device Role / Timing Role: Microprocessor reset supervisor asserting active-low signal during VCC drop below 2.25 V and holding for ≥240 ms post-recovery. Use Value: Prevents firmware corruption and EEPROM write errors during transient undervoltage events common in vehicle electrical systems. |
Use Scenario: Supervising 3.3 V MCU supply in door module electronics exposed to load-dump and jump-start surges. IC Role / Device Role / Timing Role: Brownout detector with push-pull output driving µP reset pin directly, eliminating external pull-up and PCB trace inductance issues. Use Value: Guarantees clean reset assertion even when VCC sags to 1.0 V, ensuring deterministic recovery after power disturbance. |
| Portable Medical Sensors | Smart Energy Meters |
|
Use Scenario: Battery-powered glucose monitor operating from single Li-ion cell (2.7–4.2 V) with low-power sleep mode. IC Role / Device Role / Timing Role: Low-quiescent-current (20 µA) reset supervisor enabling multi-year shelf life while maintaining precise 2.25 V trip point. Use Value: Eliminates need for external voltage divider and comparator, reducing component count and leakage paths in sealed medical enclosures. |
Use Scenario: Monitoring 5 V auxiliary supply in DIN-rail mounted meter during grid voltage sags and harmonics. IC Role / Device Role / Timing Role: Precision reset circuit rejecting fast transients (≤100 µs, 100 mV overdrive) induced by relay switching and EMI. Use Value: Prevents false resets caused by switching noise on shared power rails, ensuring uninterrupted metrology data logging. |
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 (±1.5%), 140 ms min timeout, 0.5 µA max IQ, SOT23-3 package | Lower IQ enables ultra-low-power designs; shorter timeout suits faster-booting MCUs; same pinout but different marking | Select for new designs requiring extended battery life and RoHS-2 compliance; not drop-in due to timeout and threshold variance |
| TPS3808G12DBVR | 1.22 V threshold (±0.5%), 200 ms min timeout, 1.1 µA max IQ, adjustable via external resistor | Higher accuracy and programmability; requires external resistor; higher cost and layout complexity | Choose when 0.5% threshold tolerance or adjustable reset level is mandatory; not pin-compatible with AP1701FWG-7 |
Compared with APX809S23-22 and TPS3808G12DBVR, AP1701FWG-7 offers fixed 2.25 V threshold and 240 ms timeout optimized for legacy 2.5V systems, with proven robustness in automotive and industrial environments where long reset hold time and transient immunity are prioritized over ultra-low IQ.
Availability
AP1701FWG-7 is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, and portable medical sensors requiring stable component supply and long-term obsolescence management.
Supply support for AP1701FWG-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, automotive, and computing markets.
The AP170X series was designed specifically for cost-sensitive, space-constrained microprocessor supervisory applications requiring precision reset thresholds, minimal external components, and wide-temperature operation in harsh environments.
FAQ
Is AP1701FWG-7 pin-compatible with AP1701AW or AP1701FSA?
Yes - AP1701FWG-7 uses the SC59-3L package identical to AP1701AW, and shares the same 3-pin pinout (GND-VCC-RESET). AP1701FSA uses SOT23-3 with identical pin assignment but different footprint dimensions; mechanical compatibility requires pad layout verification per AP02001.
What is the maximum VCC transient amplitude the AP1701FWG-7 can ignore without asserting reset?
At 100 mV overdrive (i.e., VCC dipping 100 mV below 2.25 V threshold), AP1701FWG-7 ignores transients ≤100 µs duration. This value is confirmed in the "Glitch Immunity" graph on page 6 of the datasheet and validated across –40°C to +85°C ambient.
Does AP1701FWG-7 require an external pull-up resistor on the RESET pin?
No - its push-pull output actively drives both high and low states. The RESET pin sources ≥800 µA at VOH ≥ VCC – 1.5 V and sinks ≥1.2 mA at VOL ≤ 0.3 V, eliminating need for external pull-up and reducing board-level EMI susceptibility.
Can AP1701FWG-7 operate reliably at VCC = 1.1 V?
Yes - the datasheet guarantees RESET remains valid (logic low) for VCC ≥ 1.0 V. At 1.1 V, the internal comparator continues functioning, and the output driver maintains VOL ≤ 0.3 V with ISINK = 50 µA, ensuring interoperability with 1.2 V logic families.
AP1701FWG-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
AP1701FWG-7 FAQ
1.How can I place an order for AP1701FWG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1701FWG-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 AP1701FWG-7 reliable?
The price and inventory of AP1701FWG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1701FWG-7 is usually 5 days.
3.What payment methods are accepted for AP1701FWG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1701FWG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1701FWG-7?
AP1701FWG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1701FWG-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 AP1701FWG-7?
For technical support, including AP1701FWG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1701FWG-7 requirements.
6.How does Aetrix verify that AP1701FWG-7 is sourced from the original manufacturer or authorized distributors?
All AP1701FWG-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 AP1701FWG-7 meets industry standards.
7.What is the process for return or replacement of AP1701FWG-7?
All AP1701FWG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP1701FWG-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 AP1701FWG-7 part is unused and in its original packaging.
Return procedure for AP1701FWG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP1701FWG-7 Tags
-
MIC826SYMT-TR
Microchip Technology
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