My Inquiry
My Account
Renesas ICL7665SCBA
- Part No.:
- ICL7665SCBA
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ICL7665SCBA.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,049
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ICL7665SCBA from Intersil is a dual CMOS micropower over/under voltage detector IC with individually programmable trip points, 1.3V internal bandgap reference, 3µA typical supply current, and 8-lead SOIC (Pb-free) package. It operates from 1.6V to 16V supply and delivers precise fault monitoring in battery-powered instrumentation and portable computing systems.
For engineers reviewing the ICL7665SCBA datasheet, ICL7665SCBA pinout, ICL7665SCBA application, or ICL7665SCBA equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternative parts, and supply-chain support for industrial and OEM deployment.
Technical Context
The ICL7665SCBA integrates two independent comparators referencing a stable 1.3V bandgap source, enabling simultaneous undervoltage and overvoltage detection on SET1 and SET2 inputs. Each comparator drives open-drain N-channel (OUT1/OUT2) and P-channel (HYST1/HYST2) outputs for flexible hysteresis configuration.
It supports resistor-programmable trip thresholds with <±50mV difference between VSET1 and VSET2, 100ppm/°C temperature coefficient (ICL7665S grade), and guaranteed ≤10µA max quiescent current across 0°C to +70°C. Output saturation voltages are specified down to 0.06V at 2mA sink (V+ = 15V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 16V - enables direct operation from single-cell Li-ion up to multi-rail industrial supplies without external regulation. |
| Quiescent Current | ≤10µA max at +70°C - ensures >1-year battery life in low-power pagers and memory backup circuits. |
| Internal Reference | 1.30V ±0.10V - provides stable trip point baseline unaffected by supply variation (0.03%/V sensitivity). |
| Output Sink Capability | Up to 20mA per OUTx - directly drives LEDs, MOSFET gates, or logic inputs without buffer stages. |
| Temperature Range | 0°C to +70°C - qualified for commercial-grade portable electronics and embedded instrumentation. |
| Package | 8-lead SOIC (M8.15), Pb-free - compatible with standard surface-mount reflow processes and IPC/JEDEC J-STD-020 MSL level. |
| Input Leakage | ≤10nA at SET pins - permits use of high-value resistors (>10MΩ) for ultra-low power threshold programming. |
Pinout & Package
ICL7665SCBA uses an 8-lead narrow-body SOIC package (JEDEC MS-012-AA, M8.15 outline), 3.9mm × 4.9mm body size, 1.27mm lead pitch, RoHS-compliant matte tin terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT1 | Open-drain N-channel output | Sinks current when VSET1 < 1.3V; used for undervoltage alert or shutdown control. |
| 2: HYST1 | Open-drain P-channel output | Sources current when VSET1 > 1.3V; connects to R31 to enable hysteresis in overvoltage detection. |
| 3: SET1 | Comparator 1 input | High-impedance node (≤10nA leakage); voltage divider sets trip point relative to 1.3V reference. |
| 4: GND | Analog ground reference | Return path for internal bandgap and comparator circuitry; must be low-noise and star-connected. |
| 5: V+ | Positive supply rail | Power input (1.6–16V); also serves as reference for HYSTx outputs and defines output swing limits. |
| 6: OUT2 | Open-drain N-channel output | Sinks current when VSET2 < 1.3V; typically used for low-battery warning or power-fail indication. |
| 7: SET2 | Comparator 2 input | Independent high-Z input for second threshold; allows asymmetric over/under detection windows. |
| 8: HYST2 | Open-drain P-channel output | Sources current when VSET2 > 1.3V; configures hysteresis for SET2-based detection (e.g., brownout recovery). |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage detectors | Enables simultaneous monitoring of two distinct rails (e.g., +5V and +3.3V) or rising/falling thresholds on one rail. |
| Individually programmable hysteresis | HYST1/HYST2 outputs allow resistor-based hysteresis tuning per channel-prevents chatter near trip points without external components. |
| 1.3V precision bandgap reference | Stable internal reference eliminates need for external voltage references; maintains accuracy across 1.6–16V supply range. |
| Ultra-low quiescent current | ≤10µA max over temperature ensures minimal impact on battery capacity in always-on monitoring applications. |
| Open-drain output architecture | OUT1/OUT2 and HYST1/HYST2 support wired-OR logic, level shifting, and direct interface to microcontroller GPIOs or PMIC enable inputs. |
Applications
| Battery-Powered Instrumentation | Portable Computing Power Monitoring |
|---|---|
|
Use Scenario: Continuous voltage supervision in handheld multimeters and portable oscilloscopes during battery discharge cycles. IC Role / Device Role / Timing Role: Dual comparator monitors both under-voltage cutoff (SET2) and over-voltage charge termination (SET1) using shared 1.3V reference. Use Value: Prevents deep discharge damage and false resets via independent hysteresis on each channel, extending usable battery life by ≥15%. |
Use Scenario: Real-time supply validation in clamshell laptops during AC adapter insertion/removal and battery switchover. IC Role / Device Role / Timing Role: ICL7665SCBA generates POWER_OK (wired-OR of OUT1/OUT2) and disables charging ICs when VBAT drops below safe threshold. Use Value: Eliminates need for discrete supervisor ICs and reduces BOM count by consolidating two independent fault monitors into one SOIC-8 device. |
| Memory Backup System Supervision | AC Power Fail Detection |
|
Use Scenario: Maintaining CMOS SRAM integrity during main power loss in industrial controllers with supercapacitor backup. IC Role / Device Role / Timing Role: OUT2 asserts write-protection signal when VCC falls below 4.5V; OUT1 triggers backup switch at 4.2V with 300mV hysteresis. Use Value: Guarantees clean data retention window ≥200ms at 100µA backup current, validated across -20°C to +70°C ambient. |
Use Scenario: Detecting brownouts and complete AC loss in medical diagnostic equipment powered via 24VDC SMPS. IC Role / Device Role / Timing Role: ICL7665SCBA monitors rectified transformer secondary; OUT1 toggles every half-cycle under normal AC, latching OFF during fail. Use Value: Provides ≥100ms warning before DC rail collapse, enabling controlled system shutdown and EEPROM logging prior to power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7032IDR | Single-supply, rail-to-rail comparator with no internal reference; requires external 1.2V reference and hysteresis resistors. | Lacks integrated bandgap and dual-channel architecture; needs ≥4 external components to match ICL7665SCBA functionality. | Choose only if existing design already includes precision reference and layout space permits added passives. |
| MAX6375XR29+T | Fixed 2.93V reset IC with 200ms timeout; no programmability, no dual-threshold capability, no hysteresis control. | Provides only single-point power-on reset; unsuitable for over/under monitoring or adaptive trip points. | Select only for simple POR applications where adjustable thresholds and dual outputs are unnecessary. |
Compared with TLV7032IDR and MAX6375XR29+T, the ICL7665SCBA delivers fully integrated dual-threshold detection with programmable hysteresis in one SOIC-8 package-reducing component count by ≥5 and eliminating reference drift concerns inherent in discrete solutions.
Availability
ICL7665SCBA is available at Aetrix Electronics and suitable for battery-operated systems, portable instrumentation, and memory power back-up requiring stable component supply and long-term lifecycle assurance.
Supply support for ICL7665SCBA 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
Intersil Corporation is a precision analog and power management semiconductor provider, now part of Renesas Electronics, with ISO9001-certified manufacturing and global distribution.
The ICL7665S family was designed specifically for micropower voltage supervision in portable and battery-critical systems, emphasizing ultra-low IQ, wide supply range, and resistor-programmable flexibility without external references.
FAQ
What is the maximum supply voltage rating for the ICL7665SCBA?
The ICL7665SCBA has an absolute maximum supply voltage of +18V, but its operational range is specified from 1.6V to 16V. Operation above 16V may cause parametric shift or reliability degradation, and the device is not characterized beyond 16V per the FN3182 Rev 10.00 datasheet. Always include transient suppression if used in environments with voltage spikes.
Can the ICL7665SCBA monitor both overvoltage and undervoltage on the same supply rail?
Yes, the ICL7665SCBA can monitor both conditions on one rail using SET1 and SET2 with separate resistor dividers. For example, configuring SET1 for 5.5V overvoltage and SET2 for 4.5V undervoltage creates a 1V window with independent hysteresis-verified in Figure 12 of the FN3182 datasheet.
Does the ICL7665SCBA require external passive components to function?
Yes, the ICL7665SCBA requires external resistors on SET1/SET2 to define trip voltages and optional resistors on HYST1/HYST2 to configure hysteresis. No external capacitors or references are needed-the 1.3V bandgap and comparator core are fully integrated. Minimum external parts: 4 resistors for basic dual-threshold operation.
What is the output behavior of OUT1 and OUT2 on the ICL7665SCBA?
OUT1 and OUT2 are open-drain N-channel MOSFETs that sink current when their respective SET inputs fall below 1.3V. They remain high-impedance (open) otherwise. Each can sink up to 20mA, with saturation voltage as low as 0.06V at 2mA and V+ = 15V-enabling direct LED drive or microcontroller interrupt assertion without pull-up resistors in some configurations.
Is the ICL7665SCBA pin-compatible with earlier ICL7665 variants?
Yes, the ICL7665SCBA shares identical pinout and footprint with all ICL7665S variants in SOIC-8 (M8.15), including ICL7665SACBAZ and ICL7665SAIBAZA. Electrical differences-such as tighter threshold accuracy in 'A' versions or extended temperature range in 'I' versions-do not affect mechanical or logical compatibility.
ICL7665SCBA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- Adjustable/Selectable
- Output:
- Open Drain or Open Collector
- Reset:
- Active High
- Reset Timeout:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ICL7665SCBA FAQ
1.How can I place an order for ICL7665SCBA through Aetrix?
Please submit a Request for Quotation (RFQ) for ICL7665SCBA 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 ICL7665SCBA reliable?
The price and inventory of ICL7665SCBA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICL7665SCBA is usually 5 days.
3.What payment methods are accepted for ICL7665SCBA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICL7665SCBA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICL7665SCBA?
ICL7665SCBA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICL7665SCBA 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 ICL7665SCBA?
For technical support, including ICL7665SCBA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICL7665SCBA requirements.
6.How does Aetrix verify that ICL7665SCBA is sourced from the original manufacturer or authorized distributors?
All ICL7665SCBA 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 ICL7665SCBA meets industry standards.
7.What is the process for return or replacement of ICL7665SCBA?
All ICL7665SCBA units undergo pre-shipment inspection (PSI). If there is an issue with ICL7665SCBA, 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 ICL7665SCBA part is unused and in its original packaging.
Return procedure for ICL7665SCBA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ICL7665SCBA Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
