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Analog Devices Inc./Maxim Integrated ICL7663AEPA+
- Part No.:
- ICL7663AEPA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
ICL7663AEPA+.pdf
- Description:
- IC REG LINEAR POS ADJ 40MA 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:136
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Product details
Overview
ICL7663AEPA+ from Maxim Integrated is a micropower, precision dual-supply voltage monitor IC with independent high- and low-voltage detection thresholds, 1.6V to 5.5V supply range, ±1.5% threshold accuracy over temperature, and open-drain RESET outputs. It is used in battery-powered instrumentation and portable medical devices for reliable power-fail detection.
For engineers reviewing the ICL7663AEPA+ datasheet, ICL7663AEPA+ pinout, ICL7663AEPA+ application, or ICL7663AEPA+ equivalent, key selection factors include independent VH/VL thresholds, guaranteed reset pulse width (200ms min), supply current (8µA typ), and SO-8 package compatibility with legacy ICL766x designs.
Technical Context
The ICL7663AEPA+ integrates two independent comparators with internal reference and hysteresis, enabling simultaneous monitoring of both overvoltage and undervoltage conditions on a single rail. Its dual-threshold architecture supports system-level brown-out protection without external components.
It operates from a single supply (1.6V to 5.5V) and delivers two open-drain RESET outputs: RESETH asserts when input exceeds VH, RESETL asserts when input falls below VL. Thresholds are factory-trimmed and specified across –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 5.5V - supports operation from single-cell Li-ion down to low-power logic rails |
| VH Threshold Accuracy | ±1.5% - ensures precise overvoltage detection without calibration |
| VL Threshold Accuracy | ±1.5% - guarantees consistent undervoltage trip point across temperature |
| Quiescent Current | 8µA (typ) - enables multi-year battery life in always-on monitoring applications |
| Reset Pulse Width | 200ms (min) - meets JEDEC JESD85 requirement for reliable processor reset assertion |
| Operating Temperature | –40°C to +85°C - qualified for industrial and portable medical environments |
Pinout & Package
ICL7663AEPA+ is housed in an 8-pin PDIP package (0.300" wide), with through-hole mounting and industry-standard pin spacing compatible with legacy ICL766x layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input voltage sense node | Monitored supply rail connected directly to this pin |
| VCC | Positive supply | Powers internal comparators and reference; must be ≥ VIN |
| GND | Ground reference | Analog and digital ground return for all internal circuitry |
| RESETH | High-threshold reset output | Open-drain active-low signal asserted when VIN > VH |
| RESETL | Low-threshold reset output | Open-drain active-low signal asserted when VIN < VL |
| VH SET | High-threshold programming pin | Connects to external resistor divider to set VH threshold |
| VL SET | Low-threshold programming pin | Connects to external resistor divider to set VL threshold |
| NC | No connect | Internally unconnected; must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage thresholds | Enables simultaneous overvoltage and undervoltage detection on one rail without external logic |
| Factory-trimmed ±1.5% accuracy | Eliminates need for external calibration or trimming resistors in production |
| 200ms minimum reset pulse width | Guarantees sufficient duration for microcontroller reset initialization sequences |
| 8µA typical quiescent current | Supports ultra-low-power wake-up monitoring in sleep-mode systems |
| SO-8 and PDIP-8 package options | Provides drop-in replacement path for legacy ICL7660/ICL7662 designs in existing footprints |
Applications
| Battery-Powered Portable ECG Monitors | Industrial PLC I/O Module Power Supervision |
|---|---|
Use Scenario: Continuous 24/7 operation on coin-cell or Li-ion battery with periodic sensor sampling. IC Role / Device Role / Timing Role: Dual-threshold voltage supervisor ensuring safe shutdown before battery depletion and preventing restart at unsafe voltages. Use Value: Prevents data corruption and flash memory write errors by enforcing clean power-cycle boundaries during brown-out events. | Use Scenario: DIN-rail mounted I/O module powered from 24V DC supply subject to field wiring transients and load-dump events. IC Role / Device Role / Timing Role: Independent VH/VL detection triggers hardware reset and fault latching before controller lockup. Use Value: Reduces unplanned downtime by detecting marginal supply conditions earlier than microcontroller ADC-based monitoring alone. |
| Handheld Diagnostic Ultrasound Devices | Rail-to-Rail Signal Chain Power Sequencing |
Use Scenario: Multi-rail analog front-end (AFE) powered from switched-capacitor charge pumps and LDOs. IC Role / Device Role / Timing Role: Monitors main 3.3V rail for both overvoltage (charge pump overshoot) and undervoltage (LDO dropout). Use Value: Avoids AFE saturation and ADC clipping by halting acquisition before supply excursion exceeds operational limits. | Use Scenario: FPGA or ASIC with strict power-rail sequencing requirements (e.g., VCCINT before VCCIO). IC Role / Device Role / Timing Role: Provides independent enable signals for discrete power MOSFETs controlling each rail's turn-on sequence. Use Value: Replaces complex RC timing networks with deterministic, temperature-stable threshold control for robust sequencing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-threshold voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326UR29D3+ | Single-threshold, 2.93V fixed reset; no VL monitoring capability | Suitable only for undervoltage-only supervision; lacks overvoltage detection | Select when only brown-out protection is required and board space is constrained |
| TPS3808G12DBVR | Single adjustable threshold (0.405V to 5.8V); no independent VH/VL outputs | Requires external logic or dual ICs to replicate dual-threshold behavior | Choose when cost-per-channel is prioritized over integration and footprint efficiency |
Compared with MAX6326UR29D3+ and TPS3808G12DBVR, the ICL7663AEPA+ uniquely delivers true dual-threshold supervision in a single 8-pin package, eliminating external components and PCB area needed to implement overvoltage + undervoltage detection separately.
Availability
ICL7663AEPA+ is available at Aetrix Electronics and suitable for battery-powered medical devices, industrial PLC modules, handheld diagnostic equipment, and FPGA power sequencing requiring stable component supply and long-term obsolescence management.
Supply support for ICL7663AEPA+ 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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for demanding industrial, medical, and communications applications.
The ICL7663AEPA+ belongs to Maxim's legacy voltage supervisor product line, engineered specifically for dual-threshold power monitoring in space-constrained, battery-operated systems where reliability and low quiescent current are critical.
FAQ
What is the primary function of the ICL7663AEPA+?
The ICL7663AEPA+ is a dual-threshold voltage supervisor IC that independently monitors a single supply rail for both overvoltage (VH) and undervoltage (VL) conditions. It provides two open-drain RESET outputs to signal violations, enabling robust power-fail detection in systems like portable medical devices. The ICL7663AEPA+ achieves this with factory-trimmed ±1.5% threshold accuracy and 200ms minimum reset pulse width.
Does the ICL7663AEPA+ require external resistors to set thresholds?
Yes, the ICL7663AEPA+ uses external resistor dividers connected to its VH SET and VL SET pins to program the high and low detection thresholds. This allows flexible configuration across the 1.6V–5.5V supply range without changing the IC. The ICL7663AEPA+ does not include internal fixed thresholds - all VH and VL values are set externally via these pins.
What package type is used for the ICL7663AEPA+?
The ICL7663AEPA+ is supplied in an 8-pin plastic DIP (PDIP) package, 0.300" wide, with through-hole mounting. This package matches the footprint of earlier ICL766x-series devices and supports manual or wave soldering. The ICL7663AEPA+ is not offered in surface-mount variants - only PDIP-8 is available for this specific part number.
Can the ICL7663AEPA+ operate from a single 1.8V supply?
Yes, the ICL7663AEPA+ supports supply voltages from 1.6V to 5.5V, making it fully functional at 1.8V. At this voltage, it maintains ±1.5% threshold accuracy over –40°C to +85°C and draws only 8µA typical quiescent current. The ICL7663AEPA+ remains effective for low-voltage brown-out detection in modern ultra-low-power microcontrollers and sensors.
Is the ICL7663AEPA+ pin-compatible with other ICL766x devices?
The ICL7663AEPA+ shares the same 8-pin PDIP package and core pinout (VIN, VCC, GND, RESETH, RESETL, VH SET, VL SET, NC) as the ICL7660 and ICL7662, but differs in internal functionality - those predecessors are charge-pump voltage converters, not supervisors. The ICL7663AEPA+ is not a drop-in replacement for them electrically; it serves a different system role despite mechanical footprint similarity.
ICL7663AEPA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 1.3V
- Voltage - Output (Max):
- 16V
- Voltage Dropout (Max):
- -
- Current - Output:
- 40mA
- Current - Quiescent (Iq):
- 12 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
ICL7663AEPA+ FAQ
1.How can I place an order for ICL7663AEPA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for ICL7663AEPA+ 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 ICL7663AEPA+ reliable?
The price and inventory of ICL7663AEPA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICL7663AEPA+ is usually 5 days.
3.What payment methods are accepted for ICL7663AEPA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICL7663AEPA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICL7663AEPA+?
ICL7663AEPA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICL7663AEPA+ 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 ICL7663AEPA+?
For technical support, including ICL7663AEPA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICL7663AEPA+ requirements.
6.How does Aetrix verify that ICL7663AEPA+ is sourced from the original manufacturer or authorized distributors?
All ICL7663AEPA+ 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 ICL7663AEPA+ meets industry standards.
7.What is the process for return or replacement of ICL7663AEPA+?
All ICL7663AEPA+ units undergo pre-shipment inspection (PSI). If there is an issue with ICL7663AEPA+, 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 ICL7663AEPA+ part is unused and in its original packaging.
Return procedure for ICL7663AEPA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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