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Diodes Incorporated AP1704FWG-7
- Part No.:
- AP1704FWG-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP1704FWG-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC59-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
AP1704FWG-7 from Diodes Incorporated is a 3-pin microprocessor reset supervisor IC with active-high push-pull RESET output, 2.25 V reset threshold (±0.05 V), 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 systems in portable, automotive, and industrial controllers.
For engineers reviewing the AP1704FWG-7 datasheet, AP1704FWG-7 pinout, AP1704FWG-7 application, or AP1704FWG-7 equivalent, key selection criteria include reset threshold accuracy (±2.2%), temperature coefficient (30 ppm/°C), glitch immunity (100 µs at 100 mV overdrive), and SC59 package compatibility with SOT23 footprints.
Technical Context
The AP1704FWG-7 implements a precision bandgap-based voltage comparator with internal delay timer and push-pull output stage. Its reset assertion logic responds only to sustained VCC drops below 2.25 V-not transient glitches-and maintains RESET high for ≥240 ms after VCC recovers above threshold.
Designed for brownout detection in low-power embedded systems, it operates across –40°C to +105°C with <30 ppm/°C threshold drift and guarantees valid RESET output for VCC ≥ 1 V. The SC59-3L package supports reflow-compatible lead-free assembly per RoHS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.25 V ±0.05 V - ensures reliable reset assertion before critical logic voltage margin is violated in 2.5V systems |
| Reset Timeout | 240 ms min - provides sufficient hold time for microprocessor initialization and clock stabilization |
| Supply Current | 20 µA typ. - enables multi-year battery life in portable equipment without compromising supervision integrity |
| VCC Operating Range | 1.0 V to 5.5 V - guarantees functional reset output even during deep brownout conditions down to 1 V |
| Output Type | Active-high push-pull - eliminates need for external pull-up resistor and supports direct CMOS input drive |
| Tempco | 30 ppm/°C - limits threshold drift to <±15 mV over full –40°C to +105°C range |
| Glitch Immunity | 100 µs max at 100 mV overdrive - rejects common power rail noise without false triggering |
Pinout & Package
AP1704FWG-7 is housed in a lead-free, green SC59-3L package (2.90 × 1.30 × 0.95 mm), compatible with standard SOT23 PCB footprints and reflow soldering profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output driver; must be connected to system ground plane |
| 2 | RESET | Active-high push-pull output; drives high to VCC when VCC ≥ 2.25 V and timeout complete; sinks current when asserted low |
| 3 | VCC | Power supply input; supplies internal circuitry and defines reset threshold reference; bypass with 0.1 µF capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Precision reset threshold | 2.25 V ±0.05 V - matches 2.5V system tolerance requirements without calibration |
| Guaranteed reset validity | VCC ≥ 1 V - ensures deterministic state during deep undervoltage recovery |
| No external components required | Self-contained supervision - reduces BOM count and layout area vs. discrete RC reset solutions |
| Low quiescent current | 20 µA typ. - minimizes standby power draw in always-on monitoring applications |
| Transient immunity | 100 µs rejection window at 100 mV overdrive - prevents false resets from switching noise or ESD-induced rail dips |
Applications
| Industrial Controllers | Automotive Body Control Modules |
|---|---|
Use Scenario: Monitoring 3.3V MCU supply in programmable logic controllers exposed to wide ambient temperature swings and electrical noise. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-high RESET to halt firmware execution until stable 3.3V rail is confirmed. Use Value: Prevents corrupted register writes and flash memory corruption during cold-crank or load-dump events. | Use Scenario: Supervising 2.5V sensor interface supply in door module ECUs operating from vehicle battery with ripple and transients. IC Role / Device Role / Timing Role: Brownout detector generating 240 ms RESET pulse to reset microcontroller after VCC dip below 2.25 V. Use Value: Ensures deterministic boot sequence and avoids undefined I/O states during battery voltage sag. |
| Portable Medical Devices | Smart Energy Meters |
Use Scenario: Power-on reset generation for ARM Cortex-M0+ MCU in handheld diagnostic tools powered by single-cell Li-ion. IC Role / Device Role / Timing Role: Low-current supervisor enabling >5-year shelf life while guaranteeing valid reset down to 1 V VCC. Use Value: Eliminates need for external pull-down resistor and reduces leakage path risk in ultra-low-power sleep modes. | Use Scenario: Monitoring 3.0V real-time clock and metrology ASIC supply in DIN-rail mounted meters subject to grid surges. IC Role / Device Role / Timing Role: Precision threshold detector with 30 ppm/°C tempco ensuring consistent reset behavior across –25°C to +70°C operating range. Use Value: Maintains accurate timekeeping and measurement integrity during seasonal thermal cycling and voltage sags. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| APX810S22-7 | 2.2 V reset threshold, 140 ms timeout, 1.8–5.5 V VCC range, SOT23-3 package | Lower threshold and shorter timeout; optimized for newer 2.2V/2.5V systems with faster startup | Select for new designs requiring RoHS-compliant, production-supported replacement with tighter threshold tolerance (±1.5%) |
| TPS3808G12DBVR | 1.22 V threshold, adjustable via external resistor, 200 ms timeout, 1.8–6.5 V VCC, SOT23-6 | Requires external component for threshold setting; supports wider VCC range and higher sink/source drive | Choose when design requires programmable threshold or higher output drive capability beyond 20 mA |
Compared with AP1704FWG-7, APX810S22-7 offers improved production support and tighter threshold accuracy but reduced timeout duration, while TPS3808G12DBVR adds configurability at the cost of added BOM complexity and larger footprint.
Availability
AP1704FWG-7 is available at Aetrix Electronics and suitable for industrial controllers, automotive body electronics, portable medical devices, and smart energy meters requiring stable component supply throughout extended product lifecycles.
Supply support for AP1704FWG-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 and automotive markets.
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 without external components.
FAQ
What is the function of the RESET pin on AP1704FWG-7?
The RESET pin is an active-high push-pull output that drives high to VCC when the supply voltage exceeds 2.25 V and remains high for at least 240 ms after recovery. It asserts low when VCC falls below threshold, providing a clean, glitch-immune reset signal directly compatible with standard CMOS microcontroller inputs without external pull-up resistors.
Can AP1704FWG-7 operate reliably at –40°C?
Yes. AP1704FWG-7 is fully specified from –40°C to +105°C. Its reset threshold exhibits only ±0.5% variation over this range due to a 30 ppm/°C temperature coefficient, and its 240 ms timeout and 20 µA supply current remain guaranteed across the full industrial temperature range.
Is AP1704FWG-7 pin-compatible with SOT23-3 packages?
Yes. The SC59-3L package used by AP1704FWG-7 has identical pad layout and mechanical dimensions to standard SOT23-3, allowing drop-in replacement on existing SOT23 footprints without PCB redesign-confirmed by Diodes' recommended pad layout document AP02001.
Why is AP1704FWG-7 marked "Not Recommended for New Design"?
This designation reflects Diodes' product lifecycle policy: AP1704FWG-7 remains fully available and supported, but new designs should use the APX810 series, which offers enhanced specifications (e.g., tighter threshold tolerance, longer production roadmap) and continued long-term supply assurance per Diodes' official documentation.
AP1704FWG-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 High
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-59-3
AP1704FWG-7 FAQ
1.How can I place an order for AP1704FWG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1704FWG-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 AP1704FWG-7 reliable?
The price and inventory of AP1704FWG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1704FWG-7 is usually 5 days.
3.What payment methods are accepted for AP1704FWG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1704FWG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1704FWG-7?
AP1704FWG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1704FWG-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 AP1704FWG-7?
For technical support, including AP1704FWG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1704FWG-7 requirements.
6.How does Aetrix verify that AP1704FWG-7 is sourced from the original manufacturer or authorized distributors?
All AP1704FWG-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 AP1704FWG-7 meets industry standards.
7.What is the process for return or replacement of AP1704FWG-7?
All AP1704FWG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP1704FWG-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 AP1704FWG-7 part is unused and in its original packaging.
Return procedure for AP1704FWG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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