My Inquiry
My Account
Renesas ICL7665SAIPA
- Part No.:
- ICL7665SAIPA
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
ICL7665SAIPA.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,873
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ICL7665SAIPA from Intersil is a dual CMOS micropower over/under voltage detector IC with two independently programmable comparators, 1.3V internal bandgap reference, ±5mV trip voltage difference between channels, and guaranteed 10µA max supply current over temperature. It operates from 1.8V to 16V supply and supports battery-backed memory power supervision in portable instrumentation.
For engineers reviewing the ICL7665SAIPA datasheet, ICL7665SAIPA pinout, ICL7665SAIPA application, or ICL7665SAIPA equivalent, this page delivers verified technical context, exact pin functions, real-world use cases for fault monitoring and low-battery disconnect, and validated alternative parts with documented differences in threshold accuracy and temperature coefficient.
Technical Context
The ICL7665SAIPA integrates two independent high-impedance comparators referencing a stable 1.3V bandgap source. Each comparator drives open-drain N-channel (OUT1/OUT2) and P-channel (HYST1/HYST2) outputs, enabling flexible hysteresis configuration via external resistor networks on SET1/SET2 and HYST1/HYST2 terminals.
Its design targets ultra-low-power systems: supply current remains ≤10µA across –40°C to +85°C, input leakage is ≤10nA, and trip point sensitivity to supply voltage variation is only 0.03%/V. Threshold accuracy is specified at ±2.5% (min/max 1.275V–1.325V) with 100ppm/°C temperature coefficient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8V to 16V - supports single-cell Li-ion up to 12V industrial rails without external regulation |
| Max Supply Current | 10µA over full –40°C to +85°C range - enables >10-year battery life in coin-cell-powered pagers |
| Threshold Accuracy | ±2.5% (1.275V–1.325V at 25°C) - ensures reliable trip point setting for 5V system brownout detection at 4.5V/5.5V |
| Temperature Coefficient | 100ppm/°C - limits threshold drift to ±13mV over –40°C to +85°C, critical for automotive under-hood monitoring |
| Output Sink/Source | 20mA sink (OUT), –25mA source (HYST) - directly drives LEDs, MOSFET gates, or logic inputs without buffer stages |
| Input Leakage | ≤10nA at SET pins - permits use of >10MΩ programming resistors without significant error |
| Delay Time | 55–90µs propagation delay - sufficient for power-rail monitoring but not for high-speed signal integrity checks |
Pinout & Package
ICL7665SAIPA uses an 8-lead PDIP package (JEDEC E8.3, Pb-free), 0.300" wide body, 0.100" lead pitch, with standard through-hole mounting. Thermal resistance θJA = 115°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 OUT1 | Open-drain N-channel output | Sinks current when VSET1 < 1.3V; used for undervoltage alarm or shutdown assertion |
| 2 HYST1 | Open-drain P-channel output | Sources current when VSET1 > 1.3V; enables hysteresis by shorting external R31 |
| 3 SET1 | Non-inverting comparator input | High-impedance node (≤10nA leakage) for resistor-divider programming of first trip point |
| 4 GND | Analog ground reference | Return path for internal bandgap and comparator circuitry; must be low-impedance |
| 5 V+ | Positive supply rail | Accepts 1.8–16V; powers internal reference and comparators; decoupling capacitor required |
| 6 OUT2 | Open-drain N-channel output | Sinks current when VSET2 < 1.3V; used for second fault condition (e.g., overvoltage) |
| 7 SET2 | Non-inverting comparator input | Independent high-Z input for second programmable threshold; offset from SET1 ensures channel isolation |
| 8 HYST2 | Open-drain P-channel output | Sources current when VSET2 > 1.3V; provides hysteresis for second detector channel |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent detectors | Enables simultaneous overvoltage and undervoltage monitoring on same supply rail without shared components |
| Programmable hysteresis per channel | HYST1/HYST2 outputs allow resistor-based hysteresis tuning to prevent chatter near trip points |
| 1.3V precision bandgap reference | Stable internal reference eliminates need for external voltage reference IC in cost-sensitive designs |
| Guaranteed 10µA max IQ | Validated over full –40°C to +85°C range - removes derating uncertainty in industrial temperature environments |
| Pb-free PDIP packaging | RoHS-compliant 8-lead DIP suitable for wave soldering; not rated for reflow due to thermal mass limitations |
Applications
| Single-Supply Fault Monitor | Low-Battery Disconnect System |
|---|---|
|
Use Scenario: Monitoring a +5V rail for brownout (4.5V) and overvoltage (5.5V) conditions in embedded controllers. IC Role / Device Role / Timing Role: Dual comparator generating POWER_OK signal via wired-OR outputs with hysteresis to suppress noise-induced toggling. Use Value: Eliminates need for discrete comparators, reference, and hysteresis resistors - reduces BOM count by ≥7 components. |
Use Scenario: Rechargeable battery pack in portable medical device requiring warning at 3.4V and hard disconnect at 3.0V. IC Role / Device Role / Timing Role: SET2 triggers LED warning at higher threshold; SET1 asserts MOSFET gate shutdown at lower threshold with independent hysteresis. Use Value: Prevents battery deep discharge while providing user alert - extends Li-ion cycle life by >200 cycles. |
| AC Power Fail Detection | High/Low Temperature Alarm |
|
Use Scenario: Detecting AC line sag or outage in wall-powered instrumentation using transformer secondary rectification. IC Role / Device Role / Timing Role: OUT1 discharges timing capacitor each half-cycle; OUT2 asserts fail flag when capacitor voltage exceeds 1.3V during sustained undervoltage. Use Value: Provides ≥16ms warning before regulated output collapse - enables graceful firmware shutdown and data save. |
Use Scenario: Ambient temperature monitoring in telecom base station enclosure with alarms at +75°C (overheat) and +5°C (freeze). IC Role / Device Role / Timing Role: NPN transistor VBE shift drives SET1/SET2; OUT1/OUT2 drive relays or fan control signals. Use Value: Uses single silicon junction as sensor - avoids cost and calibration overhead of dedicated temperature ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7032IDR | Push-pull outputs (no open-drain), 1.2V reference, 360nA quiescent current, no HYST pins | Requires external hysteresis resistors; unsuitable for wired-OR configurations or direct MOSFET gate drive | Select when ultra-low IQ dominates and output flexibility is secondary to power budget |
| MAX6375CSA+ | Fixed 2.93V reset threshold, no programmability, 1.6µA IQ, SO-8 package only | Lacks dual independent thresholds; limited to single-supply reset, not over/under monitoring | Select only for simple power-on reset where precise 2.93V trip is acceptable and dual detection is unnecessary |
Compared with TLV7032IDR and MAX6375CSA+, the ICL7665SAIPA uniquely delivers field-programmable dual thresholds with integrated hysteresis control, open-drain outputs for bus sharing, and guaranteed performance across –40°C to +85°C - making it irreplaceable for adaptive fault monitoring in battery-critical systems.
Availability
ICL7665SAIPA is available at Aetrix Electronics and suitable for portable instrumentation, battery backup systems, and power supply fault monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ICL7665SAIPA 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 battery-operated and space-constrained systems, emphasizing ultra-low IQ, programmable thresholds, and robust operation across commercial and industrial temperature grades.
FAQ
What is the operating temperature range for the ICL7665SAIPA?
The ICL7665SAIPA is rated for –40°C to +85°C industrial temperature operation. All key specifications-including 10µA maximum supply current, 1.275V–1.325V threshold voltage, and 100ppm/°C temperature coefficient-are guaranteed across this full range, as confirmed in the FN3182 Rev 10.00 datasheet Absolute Maximum Ratings and Electrical Specifications tables.
Can the ICL7665SAIPA monitor both overvoltage and undervoltage on the same supply rail?
Yes, the ICL7665SAIPA is explicitly designed for this function. Its dual comparators allow independent programming of upper (overvoltage) and lower (undervoltage) trip points on a single supply rail using separate SET1/SET2 resistor dividers. Figure 12 in the FN3182 datasheet shows a working single-supply fault monitor implementing 4.5V undervoltage and 5.5V overvoltage detection with hysteresis.
What package type does the ICL7665SAIPA use, and is it RoHS compliant?
The ICL7665SAIPA uses an 8-lead PDIP package (JEDEC E8.3 outline) with Pb-free terminations, fully RoHS compliant per Note 2 in the Ordering Information table. It is qualified for wave soldering only-not reflow-due to thermal mass constraints, as stated in the datasheet's Notes section.
How does hysteresis work on the ICL7665SAIPA, and which pins control it?
Hysteresis is implemented using the HYST1 and HYST2 pins, which are open-drain P-channel outputs. When their respective comparator trips (e.g., VSET1 > 1.3V), HYST1 sources current to short an external resistor (R31), lowering the effective trip threshold for falling inputs. This creates distinct rising/falling thresholds, preventing oscillation near trip points-detailed in Figures 10A/B and Table 1 of the FN3182 datasheet.
What is the maximum sink current capability of the OUT1 and OUT2 pins on the ICL7665SAIPA?
The OUT1 and OUT2 pins each support up to 20mA sink current, as specified in the "Output Current Sinking Ability" feature list and confirmed in the Absolute Maximum Ratings table (Maximum Sink Output = 25mA). This allows direct driving of LEDs, small relays, or MOSFET gates without external buffers-verified at V+ = 2V, 5V, and 15V in the Electrical Specifications section.
ICL7665SAIPA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
ICL7665SAIPA FAQ
1.How can I place an order for ICL7665SAIPA through Aetrix?
Please submit a Request for Quotation (RFQ) for ICL7665SAIPA 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 ICL7665SAIPA reliable?
The price and inventory of ICL7665SAIPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICL7665SAIPA is usually 5 days.
3.What payment methods are accepted for ICL7665SAIPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICL7665SAIPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICL7665SAIPA?
ICL7665SAIPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICL7665SAIPA 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 ICL7665SAIPA?
For technical support, including ICL7665SAIPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICL7665SAIPA requirements.
6.How does Aetrix verify that ICL7665SAIPA is sourced from the original manufacturer or authorized distributors?
All ICL7665SAIPA 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 ICL7665SAIPA meets industry standards.
7.What is the process for return or replacement of ICL7665SAIPA?
All ICL7665SAIPA units undergo pre-shipment inspection (PSI). If there is an issue with ICL7665SAIPA, 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 ICL7665SAIPA part is unused and in its original packaging.
Return procedure for ICL7665SAIPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ICL7665SAIPA 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…
