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Diodes Incorporated AP1702BWG-7
- Part No.:
- AP1702BWG-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP1702BWG-7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC59-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
AP1702BWG-7 from Diodes Incorporated is an active-high push-pull microprocessor reset supervisor IC in SC59 package, monitoring +4.38V supply with ±1.5% threshold accuracy, 240ms minimum reset timeout, 20µA typical supply current, and guaranteed reset validity down to VCC = +1V. It ensures reliable power-on initialization in embedded controllers and portable systems powered by +5V or +3.3V rails.
For engineers reviewing the AP1702BWG-7 datasheet, AP1702BWG-7 pinout, AP1702BWG-7 application, or AP1702BWG-7 equivalent, key selection criteria include reset threshold tolerance, output drive strength (800µA high-side source), transient immunity (100µs/100mV glitch rejection), and compatibility with brownout recovery timing requirements in battery-backed microcontroller systems.
Technical Context
The AP1702BWG-7 integrates a precision voltage reference, comparator with hysteresis, and a 240ms internal timer to generate a clean, debounced active-high RESET signal. Its push-pull output eliminates external pull-up resistors and supports direct interface with CMOS inputs without level-shifting.
Designed for single-supply operation from 1.0V to 5.5V, it features 30ppm/°C threshold tempco, operates across –40°C to +105°C, and ignores fast VCC transients via built-in glitch immunity-ensuring no false resets during switching noise or ripple events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.38V ±1.5% at 25°C - precisely matches +5V system brownout detection at 12% undervoltage margin |
| Reset Timeout | 240ms minimum - exceeds JEDEC JESD78 requirement for microprocessor power-on stabilization |
| Supply Current | 20µA typical - enables multi-year operation in coin-cell–powered supervisory applications |
| Output Drive | 800µA high-side source / 1.2mA low-side sink - directly drives standard CMOS RESET inputs without external components |
| VCC Validity Range | 1.0V to 5.5V - guarantees correct logic state during deep brownout and full rail operation |
| Transient Immunity | 100µs max duration for 100mV VCC dip - prevents false resets from digital switching noise |
| Tempco | 30ppm/°C - maintains <±2.5% threshold drift over –40°C to +105°C industrial range |
Pinout & Package
AP1702BWG-7 uses the SC59-3L (SOT-23 variant) 3-pin surface-mount package with gull-wing leads, 1.9mm × 2.9mm body, and 0.95mm height - optimized for automated placement and reflow soldering in space-constrained PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output driver; must be low-impedance connection to system ground plane |
| 2 | VCC | Power input pin; supplies internal circuitry and defines monitored voltage rail; accepts 1.0V–5.5V |
| 3 | RESET | Active-high push-pull output; asserts logic high during valid VCC; sinks 1.2mA / sources 800µA |
Key Features
| Feature | Design Value |
|---|---|
| No external components required | Integrated reference, comparator, and timer eliminate discrete R/C networks and reduce BOM count by ≥3 parts |
| Guaranteed reset validity to VCC = +1V | Ensures deterministic logic state during deep brownout-critical for non-volatile register retention in µC systems |
| Push-pull output stage | Eliminates need for external pull-up resistor; reduces standby current and improves noise margin on RESET line |
| Lead-free and RoHS-compliant | Meets EU Directive Annex Notes 5 & 7 exemptions; compatible with lead-free reflow profiles up to 260°C peak |
| SC59-3L package footprint | Pin-compatible with industry-standard SOT-23 layouts per AP02001 pad design; supports existing stencil and placement tooling |
Applications
| Industrial Controllers | Portable Medical Devices |
|---|---|
Use Scenario: PLC I/O modules operating from 5V DC rails in factory environments with variable line regulation and EMI exposure. IC Role / Device Role / Timing Role: Active-high reset supervisor asserting stable RESET after VCC stabilizes post-power-up and during 100ms dips. Use Value: Prevents firmware lockup during voltage sags caused by motor switching transients; 240ms timeout ensures full FPGA configuration completion. |
Use Scenario: Handheld glucose meters using CR2032 coin cells with declining voltage profiles over battery life. IC Role / Device Role / Timing Role: Monitors 3.3V LDO output and triggers µC reset before brownout-induced RAM corruption occurs. Use Value: 20µA quiescent current extends battery life >2 years; 4.38V threshold detects end-of-life voltage drop with 5% margin before functional failure. |
| Automotive Body Control Modules | Smart Energy Meters |
Use Scenario: 12V-to-5V converted subsystems in door control units exposed to load-dump and cold-crank conditions. IC Role / Device Role / Timing Role: Resets microcontroller when 5V rail falls below 4.38V during cold-crank (battery sag to 6V). Use Value: 30ppm/°C tempco ensures threshold stability across –40°C to +105°C under hood; push-pull output avoids weak pull-up failure in high-temp environments. |
Use Scenario: Revenue-grade electricity meters with isolated power supplies and tamper-detection logic requiring deterministic boot sequencing. IC Role / Device Role / Timing Role: Generates precise power-on reset pulse synchronized to 3.3V rail stabilization after AC/DC converter startup. Use Value: 240ms timeout accommodates slow-starting isolated DC/DC converters; ±1.5% threshold ensures compliance with IEC 62053-21 reset voltage tolerances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| APX809S-43SA-7 | Same 4.3V threshold, but SOT23-3 package; 140ms min timeout; 1.2µA supply current | Lower power consumption ideal for energy-harvesting designs; shorter timeout may not meet FPGA configuration timing | Select when ultra-low IQ (<2µA) is mandatory and 140ms reset hold time suffices |
| TPS3808G33DBVR | 4.3V threshold, 200ms timeout, 1.8µA IQ, but requires external pull-up; only available in SOT23-6 | Higher pin count increases layout area; open-drain output demands external resistor, adding leakage risk | Choose only if TI ecosystem integration or adjustable delay is required; avoid for space-constrained SC59 footprints |
Compared with APX809S-43SA-7 and TPS3808G33DBVR, AP1702BWG-7 delivers superior board-level simplicity via push-pull output and SC59-3L compatibility, while maintaining industrial temperature range and transient immunity-making it optimal for cost-sensitive, high-volume controller designs where footprint and component count are critical.
Availability
AP1702BWG-7 is available at Aetrix Electronics and suitable for industrial controllers, portable medical devices, and automotive body electronics requiring stable component supply and long-term manufacturability assurance.
Supply support for AP1702BWG-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 consumer markets.
The AP170x series belongs to Diodes' microprocessor supervisory product line, engineered specifically for cost-effective, no-component-required reset generation in resource-constrained embedded systems operating across extended temperature ranges.
FAQ
What is the function of the RESET pin on AP1702BWG-7?
The RESET pin is an active-high push-pull output that asserts logic high whenever VCC is above the 4.38V threshold and remains stable for ≥240ms after VCC rises above threshold. It sinks 1.2mA and sources 800µA, enabling direct connection to microcontroller reset inputs without external pull-up resistors or level shifters.
Can AP1702BWG-7 operate with a 3.3V supply rail?
No-AP1702BWG-7 has a fixed 4.38V reset threshold and requires VCC ≥4.38V to release reset. For 3.3V systems, use AP1702DWG-7 (3.08V threshold) or AP1702EWG-7 (2.93V threshold); both share identical SC59-3L packaging and timing characteristics.
Is AP1702BWG-7 pin-compatible with AP1701BWG-7?
Yes-both use identical SC59-3L package and pinout (Pin 1=GND, Pin 2=VCC, Pin 3=RESET), but differ in reset polarity: AP1701BWG-7 outputs active-low RESET, while AP1702BWG-7 outputs active-high RESET. Board-level substitution requires logic inversion or firmware adjustment.
Why does Diodes recommend APX809/810 instead of AP1702BWG-7 for new designs?
APX809/810 offer improved specifications including tighter threshold tolerance (±0.5% vs. ±1.5%), lower IQ (1.2µA vs. 20µA), and extended qualification for automotive AEC-Q100 Grade 2. AP1702BWG-7 remains fully functional and supported but is designated NRND due to these generational enhancements-not obsolescence or reliability concerns.
AP1702BWG-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:
- 4.38V
- 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
AP1702BWG-7 FAQ
1.How can I place an order for AP1702BWG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1702BWG-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 AP1702BWG-7 reliable?
The price and inventory of AP1702BWG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1702BWG-7 is usually 5 days.
3.What payment methods are accepted for AP1702BWG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1702BWG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1702BWG-7?
AP1702BWG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1702BWG-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 AP1702BWG-7?
For technical support, including AP1702BWG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1702BWG-7 requirements.
6.How does Aetrix verify that AP1702BWG-7 is sourced from the original manufacturer or authorized distributors?
All AP1702BWG-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 AP1702BWG-7 meets industry standards.
7.What is the process for return or replacement of AP1702BWG-7?
All AP1702BWG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP1702BWG-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 AP1702BWG-7 part is unused and in its original packaging.
Return procedure for AP1702BWG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP1702BWG-7 Tags
-
MIC826SYMT-TR
Microchip Technology
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APX803S-31SA-7
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