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Diodes Incorporated AP1704DWG-7
- Part No.:
- AP1704DWG-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP1704DWG-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC59-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
AP1704DWG-7 from Diodes Incorporated is a 3-pin active-high microprocessor reset supervisor IC in SC59 package, with 3.08V reset threshold, 240ms minimum reset timeout, 20µA typical supply current, and guaranteed reset validity down to VCC = 1V. It monitors +3.3V digital systems and asserts a push-pull RESET high signal during brownout, power-up, or undervoltage conditions.
For engineers reviewing the AP1704DWG-7 datasheet, AP1704DWG-7 pinout, AP1704DWG-7 application, or AP1704DWG-7 equivalent, key selection criteria include reset threshold accuracy (±1.5% over temperature), transient immunity (100µs/100mV glitch rejection), push-pull output drive capability (800µA source), and lead-free green SC59-3L packaging for portable and automotive embedded systems.
Technical Context
The AP1704DWG-7 implements a precision bandgap-based voltage comparator with 30 ppm/°C tempco and internal 240ms delay timer. Its push-pull output stage drives high actively (VOH ≥ VCC – 1.5V at 800µA) without requiring external pull-up resistors.
Designed for +3.3V systems, it asserts RESET high when VCC falls below 3.08V (typical), holds it for ≥240ms after VCC recovers above threshold, and remains immune to transients ≤100µs wide and ≤100mV deep - eliminating false resets in noisy power environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.08V (typical); precise monitoring of +3.3V supplies with ±1.5% tolerance over -40°C to +105°C |
| Reset Timeout | 240ms (min); ensures µP completes full initialization before release from reset |
| Supply Current | 20µA (typ); enables use in battery-powered equipment with minimal quiescent drain |
| Output Type | Push-pull active-high; eliminates need for external pull-up resistor and supports direct CMOS interface |
| VCC Validity Range | 1.0V to 5.5V; guarantees correct RESET logic state even during deep brownout down to 1V |
| Transient Immunity | 100µs max duration at 100mV overdrive; prevents spurious reset from short power glitches |
| Tempco | 30 ppm/°C; maintains threshold stability across industrial temperature range |
Pinout & Package
AP1704DWG-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/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output driver; must be low-impedance connection |
| 2 | VCC | Power supply input; operates from 1.0V to 5.5V; bypass capacitor required at pin |
| 3 | RESET | Active-high push-pull output; drives high during normal operation, low during reset condition |
Key Features
| Feature | Design Value |
|---|---|
| Precision 3.08V threshold | Enables reliable supervision of +3.3V systems without calibration or trimming components |
| 240ms minimum reset pulse width | Meets µP power-on initialization timing requirements across temperature and voltage extremes |
| 20µA supply current (typ) | Extends battery life in portable instrumentation and handheld controllers |
| Guaranteed operation down to VCC = 1V | Ensures deterministic reset behavior during deep undervoltage events before system collapse |
| Push-pull active-high output | Directly interfaces with µP RESET inputs without external pull-up, reducing BOM count and board space |
Applications
| Industrial Controllers | Portable Medical Instruments |
|---|---|
Use Scenario: PLC I/O modules operating on +3.3V rails in factory automation environments with variable line voltage and EMI. IC Role / Device Role / Timing Role: Microprocessor reset supervisor asserting active-high RESET to prevent firmware corruption during brownout. Use Value: 3.08V threshold matches +3.3V nominal supply with margin; 240ms timeout exceeds typical ARM Cortex-M boot time. | Use Scenario: Battery-powered glucose meters requiring low-power reset supervision during intermittent charging cycles. IC Role / Device Role / Timing Role: Active-high reset generator ensuring MCU starts only when stable >3.08V is confirmed post-battery recovery. Use Value: 20µA quiescent current minimizes standby drain; SC59 package enables compact PCB layout. |
| Automotive Body Control Modules | Smart Energy Meters |
Use Scenario: 12V-to-3.3V converted subsystems in BCMs exposed to load-dump and cold-crank transients. IC Role / Device Role / Timing Role: Voltage monitor rejecting <100µs/100mV glitches while asserting RESET during sustained undervoltage. Use Value: Transient immunity prevents false resets during ignition switching; -40°C to +105°C rating meets AEC-Q100 stress levels. | Use Scenario: Revenue-grade electricity meters with isolated +3.3V logic rails powered from AC/DC converters. IC Role / Device Role / Timing Role: Supervisor ensuring secure boot sequence only after stable 3.3V rail is established post-power-up. Use Value: Push-pull output avoids weak pull-up limitations in isolated domains; lead-free green package complies with RoHS 2011/65/EU. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| APX810S23-30 | 3.00V threshold, 200ms min timeout, SOT23-3 package, same 20µA ICC | Optimized for newer designs; improved tempco (20 ppm/°C) and tighter threshold tolerance (±1.0%) | Select for new designs requiring enhanced accuracy and lifecycle support; not pin-compatible due to different marking and thermal pad |
| TPS3808G30DBVR | 3.00V threshold, 200ms timeout, 1.5µA ICC, SOT23-6 package with manual reset input | Ultra-low power and manual reset capability; requires external pull-up for open-drain output | Choose when battery runtime is critical and manual reset functionality is needed; adds complexity vs. push-pull simplicity |
Compared with AP1704DWG-7, APX810S23-30 offers tighter threshold accuracy and longer manufacturer support, while TPS3808G30DBVR delivers 13× lower quiescent current but requires external components and lacks push-pull convenience - making AP1704DWG-7 optimal for cost-sensitive, legacy-compliant +3.3V supervisory roles.
Availability
AP1704DWG-7 is available at Aetrix Electronics and suitable for industrial controllers, portable medical instruments, automotive body control modules, and smart energy meters requiring stable component supply and long-term obsolescence management.
Supply support for AP1704DWG-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 semiconductor company specializing in discrete, analog, and mixed-signal ICs for power management, signal integrity, and protection applications.
The AP170x series belongs to Diodes' microprocessor supervisory product line, designed specifically for cost-effective, single-function reset generation in resource-constrained embedded systems with +2.5V to +5V supplies.
FAQ
What is the function of the RESET pin on AP1704DWG-7?
The RESET pin is an active-high push-pull output that drives high during normal operation and pulls low when VCC drops below the 3.08V threshold. It remains low for at least 240ms after VCC recovers, ensuring reliable microprocessor initialization. No external pull-up resistor is needed due to its integrated driver stage.
Does AP1704DWG-7 require a bypass capacitor?
Yes - a 0.1µF ceramic capacitor must be placed as close as possible to the VCC pin to ensure stable operation and enhance immunity to fast transients. This capacitor suppresses noise coupling and prevents false resets caused by local supply droop during switching events on the same PCB.
Can AP1704DWG-7 operate with VCC below 3.08V?
Yes - it functions down to VCC = 1.0V and guarantees correct RESET logic state throughout that range. Below 1.0V, the RESET output becomes high-impedance; for applications requiring valid logic down to 0V, a 100kΩ pull-down resistor on RESET is recommended to prevent floating states.
Is AP1704DWG-7 pin-compatible with AP1703DWG-7?
No - although both share the same SC59-3L package and pinout (GND-VCC-RESET), AP1704DWG-7 has active-high RESET output while AP1703DWG-7 has active-low. Swapping them without circuit revision will invert reset logic and cause system failure; firmware or hardware changes are required for substitution.
AP1704DWG-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:
- 3.08V
- 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
AP1704DWG-7 FAQ
1.How can I place an order for AP1704DWG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1704DWG-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 AP1704DWG-7 reliable?
The price and inventory of AP1704DWG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1704DWG-7 is usually 5 days.
3.What payment methods are accepted for AP1704DWG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1704DWG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1704DWG-7?
AP1704DWG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1704DWG-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 AP1704DWG-7?
For technical support, including AP1704DWG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1704DWG-7 requirements.
6.How does Aetrix verify that AP1704DWG-7 is sourced from the original manufacturer or authorized distributors?
All AP1704DWG-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 AP1704DWG-7 meets industry standards.
7.What is the process for return or replacement of AP1704DWG-7?
All AP1704DWG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP1704DWG-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 AP1704DWG-7 part is unused and in its original packaging.
Return procedure for AP1704DWG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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