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Diodes Incorporated AP1704GWG-7
- Part No.:
- AP1704GWG-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP1704GWG-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC59-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
AP1704GWG-7 from Diodes Incorporated is a 3-pin active-high microprocessor reset supervisor IC in SC59 package, featuring 2.25V reset threshold, 240ms minimum reset timeout, 20µA typical supply current, and guaranteed reset validity down to VCC = +1V. It monitors +2.5V/+3.0V/+3.3V/+5V power rails in embedded controllers and portable equipment to prevent erroneous code execution during brownout or power-up.
For engineers reviewing the AP1704GWG-7 datasheet, AP1704GWG-7 pinout, AP1704GWG-7 application, or AP1704GWG-7 equivalent, key selection criteria include reset threshold accuracy (±1.5% at 25°C), push-pull output drive capability (800µA source), transient immunity (100µs/100mV glitch rejection), and RoHS-compliant green SC59-3L packaging for space-constrained PCB layouts.
Technical Context
The AP1704GWG-7 implements a precision bandgap-based voltage comparator with 30 ppm/°C tempco and internal 240ms delay timer. Its push-pull output asserts RESET high when VCC falls below 2.25V and holds it high for ≥240ms after VCC recovers above threshold.
Designed for single-supply monitoring, it operates across 1.0V–5.5V VCC range, sinks 1.2mA at VOL ≤0.3V (VCC > VTH min), sources 800µA at VOH ≥VCC–1.5V, and rejects transients via comparator overdrive tolerance-ensuring no false resets for ≤100µs negative glitches ≥100mV below VTH.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.25V ±1.5% at 25°C - precisely targets 2.5V rail brownout detection without external calibration |
| Reset Timeout | 240ms minimum - ensures µP completes full initialization before release from reset state |
| Supply Current | 20µA typical - enables multi-year battery life in portable instrumentation |
| VCC Operating Range | 1.0V to 5.5V - supports operation during deep brownout and compatibility with 5V/3.3V/2.5V systems |
| Output Type | Push-pull active-high - eliminates need for external pull-up resistor and reduces BOM count |
| Transient Immunity | 100µs max duration for 100mV VCC dip - prevents false resets from switching noise or ESD-induced supply droop |
| Reset Validity | Guaranteed to VCC = +1V - maintains defined logic state through critical low-voltage recovery phase |
Pinout & Package
AP1704GWG-7 is housed in a lead-free, green SC59-3L (SOT-23 compatible) surface-mount package measuring 2.90–3.10mm × 1.50–1.70mm × 1.00–1.30mm, with gull-wing leads optimized for automated reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output stage; must be low-impedance connection to system ground plane |
| 2 | VCC | Power input pin; supplies internal circuitry and defines reset threshold reference; requires 0.1µF local bypass capacitor |
| 3 | RESET | Active-high push-pull output; drives µP reset input directly without external components; sinks 1.2mA / sources 800µA |
Key Features
| Feature | Design Value |
|---|---|
| Precision reset threshold | 2.25V ±1.5% over temperature - eliminates manual trimming and supports tight-margin 2.5V rail designs |
| No external components required | Self-contained supervisory function - reduces PCB area by >1.5mm² vs. discrete RC reset solutions |
| Guaranteed reset assertion to VCC = 1V | Ensures deterministic behavior during deep undervoltage - avoids metastability in µP reset input circuits |
| Low 20µA supply current | Enables always-on supervision in battery-backed real-time clocks and sensor nodes with <1µA annual drain |
| SC59-3L green package | RoHS-compliant, halogen-free construction - meets IPC-J-STD-609A Class 1 material declarations |
Applications
| Industrial PLC Controllers | Portable Medical Monitors |
|---|---|
|
Use Scenario: Power sequencing and brownout protection in DIN-rail mounted programmable logic controllers operating across -25°C to +70°C ambient. IC Role / Device Role / Timing Role: Active-high reset supervisor asserting RESET signal during 24V-to-3.3V DC-DC converter instability or line sag. Use Value: Prevents firmware corruption during factory floor voltage sags; 240ms timeout exceeds typical µP boot ROM initialization time. |
Use Scenario: Battery-powered ECG and SpO₂ monitors requiring reliable startup under weak alkaline cell discharge (down to 2.2V). IC Role / Device Role / Timing Role: Monitors 2.5V LDO output feeding ARM Cortex-M0+ MCU; asserts RESET until stable VCC >2.25V and holds for 240ms. Use Value: Eliminates need for external reset IC + pull-up resistor, reducing bill-of-materials by two components and saving 1.2mm² PCB area. |
| Automotive Body Control Modules | Smart Energy Meters |
|
Use Scenario: Reset management in 12V automotive body electronics exposed to load-dump and cold-crank transients. IC Role / Device Role / Timing Role: Supervises 5V domain powering CAN transceiver and microcontroller; immune to 100µs/100mV VCC dips per ISO 7637-2 Pulse 4a. Use Value: Avoids spurious resets during ignition cranking; push-pull output drives CAN controller reset pin without level-shifting. |
Use Scenario: Tamper-resistant electricity meter with backup supercapacitor maintaining RTC and secure memory during AC mains failure. IC Role / Device Role / Timing Role: Monitors 3.0V backup rail; asserts RESET high when supercap voltage drops below 2.25V, triggering secure shutdown sequence. Use Value: Ensures cryptographic keys remain protected during brownout; 20µA quiescent current extends supercap hold-up time by >8%. |
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 | 2.93V reset threshold, SOT23-3 package, 140ms timeout, 1.8V–5.5V VCC range | Targets 3.0V/3.3V systems; shorter timeout suits faster-booting MCUs | Select when higher threshold improves noise margin on noisy 3.3V rails and board space permits SOT23 footprint |
| TPS3808G12DBVR | 1.2V threshold, adjustable via external resistor, 200ms timeout, 0.8V–6.0V VCC, enable input | Supports ultra-low-voltage SoCs and configurable reset timing | Choose for designs requiring programmable threshold or dual-supply monitoring where AP1704GWG-7's fixed 2.25V is insufficient |
Compared with APX810S23-30 and TPS3808G12DBVR, AP1704GWG-7 offers tighter threshold accuracy (±1.5% vs ±2.5%) and lower quiescent current (20µA vs 35µA), making it optimal for cost-sensitive, battery-operated 2.5V systems where fixed 2.25V detection is sufficient.
Availability
AP1704GWG-7 is available at Aetrix Electronics and suitable for industrial PLC controllers, portable medical monitors, automotive body control modules, and smart energy meters requiring stable component supply and long-term lifecycle support.
Supply support for AP1704GWG-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, engineered specifically for cost-effective, zero-component reset supervision in space-constrained embedded systems powered by 2.5V–5V rails.
FAQ
Is AP1704GWG-7 pin-compatible with AP1701/2/3 variants?
Yes - all AP170x devices share identical SC59-3L pinout (GND-VCC-RESET), enabling direct substitution within the same voltage threshold family. However, AP1701/3 are active-low while AP1704GWG-7 is active-high, so firmware or downstream logic must accommodate polarity reversal.
What is the maximum VCC slew rate this device can tolerate without false reset assertion?
The AP1704GWG-7's comparator includes built-in hysteresis and overdrive tolerance; it reliably ignores VCC transients up to 100µs duration when dipping 100mV below 2.25V threshold. For steeper edges, a 0.1µF ceramic capacitor placed within 2mm of the VCC pin is mandatory to suppress high-frequency noise.
Does AP1704GWG-7 require an external pull-up resistor on the RESET pin?
No - its push-pull output actively drives both logic high and low states. Adding an external pull-up would create contention during low-state assertion and increase power consumption; the datasheet explicitly states "no external components required" for proper operation.
Can AP1704GWG-7 be used with a 1.8V microcontroller supply rail?
No - its 2.25V reset threshold exceeds 1.8V nominal rails, causing permanent reset assertion. For 1.8V systems, Diodes recommends APX809S23-18 (1.78V threshold) or TPS3808G01 (adjustable down to 0.4V); AP1704GWG-7 is validated only for 2.5V+ applications per Electrical Characteristics table.
AP1704GWG-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:
- 2.25V
- 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
AP1704GWG-7 FAQ
1.How can I place an order for AP1704GWG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1704GWG-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 AP1704GWG-7 reliable?
The price and inventory of AP1704GWG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1704GWG-7 is usually 5 days.
3.What payment methods are accepted for AP1704GWG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1704GWG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1704GWG-7?
AP1704GWG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1704GWG-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 AP1704GWG-7?
For technical support, including AP1704GWG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1704GWG-7 requirements.
6.How does Aetrix verify that AP1704GWG-7 is sourced from the original manufacturer or authorized distributors?
All AP1704GWG-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 AP1704GWG-7 meets industry standards.
7.What is the process for return or replacement of AP1704GWG-7?
All AP1704GWG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP1704GWG-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 AP1704GWG-7 part is unused and in its original packaging.
Return procedure for AP1704GWG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP1704GWG-7 Tags
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MIC826SYMT-TR
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