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Renesas ISL90460UIE527-TK
- Part No.:
- ISL90460UIE527-TK
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
ISL90460UIE527-TK.pdf
- Description:
- IC DGTL POT 50KOHM 32TAP SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,836
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Product details
Overview
ISL90460UIE527-TK from Intersil is a volatile digitally controlled potentiometer (XDCP) configured as a 50kΩ rheostat with 32-tap resolution, 2-pin Up/Down interface, and operation from 2.7V to 5.5V supply. It delivers ±35ppm/°C tempco and 600Ω wiper resistance for precision bias and gain control in analog signal paths.
For engineers reviewing the ISL90460UIE527-TK datasheet, ISL90460UIE527-TK pinout, ISL90460UIE527-TK application, or ISL90460UIE527-TK equivalent, key selection criteria include its SC-70-5 package, volatile memory architecture, 25µA active current, 0.3µA standby supply current, and compatibility with LCD contrast, sensor transducer, and laser diode biasing circuits.
Technical Context
The ISL90460UIE527-TK implements a 31-element resistor array with electronic wiper switching controlled by CS and U/D inputs. Its volatile counter-based control logic updates wiper position on each rising edge of U/D while CS is asserted low, with no wraparound at end positions.
It operates exclusively as a two-terminal variable resistor (RH-to-GND), not a three-terminal potentiometer. The device supports only incremental/decremental adjustment-no parallel or serial register access-and requires no external clock or address lines beyond the 2-pin UP/DN interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RTOTAL | 50kΩ ±20% - defines full-scale resistance range between RH and GND terminals |
| Wiper taps | 32 discrete positions - enables 31-step linear resistance adjustment with 1.61kΩ nominal step size |
| Tempco | ±35ppm/°C typical - ensures stable resistance over -40°C to +85°C industrial temperature range |
| Active current | 25µA max at 3V - enables ultra-low-power operation in battery-sensitive analog trimming applications |
| Standby current | 0.3µA - reduces system quiescent power when wiper position is held static |
| Supply voltage | 2.7V to 5.5V - supports direct integration with 3.3V and 5V logic and analog rails |
| Wiper resistance | 600Ω - contributes fixed series resistance that must be accounted for in precision gain/bias calculations |
Pinout & Package
ISL90460UIE527-TK is housed in a 5-lead SC-70 plastic package (JEDEC MO-203AA, EIAJ SC70), measuring 2.15mm × 1.35mm × 0.95mm with 0.65mm lead pitch. The package is Pb-free plus anneal (RoHS compliant) and rated MSL1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Accepts 2.7V–5.5V; powers internal CMOS logic and wiper switches |
| GND | Ground reference | Return path for VDD and forms low-impedance node for RH-to-GND rheostat configuration |
| U/D | Direction control input | High = increment wiper; Low = decrement wiper; sampled on CS falling edge |
| CS | Chip select / latch enable | Low = active mode; High = store current tap value and enter standby (0.3µA) |
| RH | Wiper / high terminal | Output node connected to wiper switch; resistance varies from ~600Ω to 50kΩ relative to GND |
Key Features
| Feature | Design Value |
|---|---|
| Volatile XDCP architecture | Wiper resets to default (mid-scale or last-set) on power-up; no nonvolatile storage required for simple trim applications |
| 2-pin UP/DN interface | Eliminates need for I²C/SPI controllers or address decoding logic-direct GPIO control suffices |
| Low 0.3µA standby current | Enables always-on analog calibration without measurable impact on system battery life |
| 32-tap resolution with ±1 MI linearity | Provides predictable 3.125% per-step resistance change and ≤±3.2% absolute error across full range |
| SC-70-5 footprint | Matches SOT-23-5 land pattern in many designs; allows drop-in replacement where space-constrained PCBs require smallest DCP form factor |
Applications
| LCD Contrast Control | Laser Diode Biasing |
|---|---|
Use Scenario: Adjusting contrast voltage for monochrome or segment-based LCD displays in portable instrumentation and medical devices. IC Role / Device Role / Timing Role: Rheostat between VCC and LCD VEE pin to set DC bias level; no timing-critical operation required. Use Value: Replaces mechanical trimpots with automated, repeatable, and vibration-resistant digital adjustment during production calibration. | Use Scenario: Setting precise bias current for laser diode drivers in optical transceivers and fiber sensing modules. IC Role / Device Role / Timing Role: Sets reference current into driver IC's ISET pin; resistance stability (±35ppm/°C) maintains optical output power across temperature. Use Value: Enables factory-trimmed laser threshold compensation without soldered resistors or post-assembly manual tuning. |
| Sensor Transducer Adjustment | Industrial Parameter Calibration |
Use Scenario: Fine-tuning offset/gain of pressure, temperature, or position sensor signal conditioning circuits in process control systems. IC Role / Device Role / Timing Role: Configured as variable resistor in op-amp feedback or reference divider network; adjusted during final test or field service. Use Value: Supports automated calibration via microcontroller GPIOs, eliminating manual potentiometer turns and improving repeatability to ±1 MI. | Use Scenario: Calibrating analog thresholds and scaling factors in programmable logic controllers (PLCs) and industrial I/O modules. IC Role / Device Role / Timing Role: Provides user-accessible or firmware-controlled analog trim point for analog input/output channel alignment. Use Value: Allows field-updatable calibration without hardware changes-resistance retains setting until next power cycle or reprogramming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL90460TIH527Z-TK | Same core XDCP function but in SOT-23-5 package (P5.064); identical electrical specs and pinout mapping | Requires different land pattern (SOT-23 vs SC-70); same thermal and electrical performance | Select when board layout uses standard SOT-23 footprint and higher thermal mass is acceptable |
| ISL90461UIE527Z-TK | Nonvolatile version with EEPROM storage; retains wiper position after power loss; otherwise identical pinout and interface | Enables power-loss recovery in critical bias circuits; adds 1ms write time and slightly higher standby current (1µA) | Select when persistent wiper state is required and firmware can accommodate EEPROM write latency |
Compared with ISL90460UIE527-TK, the ISL90460TIH527Z-TK offers identical functionality in a larger SOT-23 package, while the ISL90461UIE527Z-TK adds nonvolatile storage at the cost of write latency and increased standby current-making ISL90460UIE527-TK optimal for cost-sensitive, power-constrained, volatile-trim applications.
Availability
ISL90460UIE527-TK is available at Aetrix Electronics and suitable for LCD contrast control, laser diode biasing, and sensor transducer adjustment requiring stable component supply and RoHS-compliant packaging.
Supply support for ISL90460UIE527-TK 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 expertise in high-reliability industrial and infrastructure solutions.
The ISL90460 product line delivers compact, low-power digitally controlled potentiometers for analog trimming in space-constrained and battery-operated systems where mechanical potentiometers are impractical.
FAQ
What is the resistance tolerance and temperature coefficient of the ISL90460UIE527-TK?
The ISL90460UIE527-TK has an end-to-end resistance (RTOTAL) tolerance of ±20% and a typical temperature coefficient of ±35ppm/°C over the -40°C to +85°C operating range. These values are specified in the Potentiometer Specifications table of the FN8225 datasheet and apply directly to the 50kΩ variant denoted by the "U" in the part number. The tempco ensures minimal drift during thermal cycling in industrial environments.
Does the ISL90460UIE527-TK retain its wiper position after power cycling?
No, the ISL90460UIE527-TK is a volatile digitally controlled potentiometer and does not retain its wiper position after power removal. Upon power-up, it resets to a default state-typically mid-scale or the last stored value depending on internal initialization. This behavior is inherent to its volatile memory architecture and is confirmed in the "Principles of Operation" section of the FN8225 datasheet.
What is the maximum allowable voltage on the RH pin of the ISL90460UIE527-TK?
The RH pin of the ISL90460UIE527-TK must remain within the supply rail limits: 0V to VDD. The Absolute Maximum Ratings specify that voltage on RH (and all other pins except VDD) must stay between GND and VDD, with no overvoltage tolerance. Exceeding VDD or going below GND risks damage, as confirmed in the "Absolute Maximum Ratings" table on page 3 of FN8225.
Can the ISL90460UIE527-TK be used as a three-terminal potentiometer?
No, the ISL90460UIE527-TK is internally configured exclusively as a two-terminal rheostat (RH-to-GND). The datasheet explicitly states that "the wiper and one terminal of the digital potentiometer is tied to the RH pin, and the other terminal is tied to GND." There is no accessible low-terminal (RL) pin; the device lacks independent RH, RL, and RW terminals required for traditional potentiometer use.
What is the settling time after changing the wiper position on the ISL90460UIE527-TK?
The ISL90460UIE527-TK has a specified output settling time (tSETTLE) of 1µs, measured from U/D transition to stable RH-to-GND resistance. This parameter is defined in the Timing Specifications table (page 4 of FN8225) and applies under recommended operating conditions. Settling occurs after each individual tap increment or decrement-not cumulative across multiple steps.
ISL90460UIE527-TK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Rheostat
- Number of Circuits:
- 1
- Number of Taps:
- 32
- Resistance (Ohms):
- 50k
- Interface:
- Up/Down (U/D, CS)
- Memory Type:
- Volatile
- Voltage - Supply:
- 2.7V ~ 5.5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±35ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SC-70-5
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 600
ISL90460UIE527-TK FAQ
1.How can I place an order for ISL90460UIE527-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL90460UIE527-TK 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 ISL90460UIE527-TK reliable?
The price and inventory of ISL90460UIE527-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL90460UIE527-TK is usually 5 days.
3.What payment methods are accepted for ISL90460UIE527-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL90460UIE527-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL90460UIE527-TK?
ISL90460UIE527-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL90460UIE527-TK 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 ISL90460UIE527-TK?
For technical support, including ISL90460UIE527-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL90460UIE527-TK requirements.
6.How does Aetrix verify that ISL90460UIE527-TK is sourced from the original manufacturer or authorized distributors?
All ISL90460UIE527-TK 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 ISL90460UIE527-TK meets industry standards.
7.What is the process for return or replacement of ISL90460UIE527-TK?
All ISL90460UIE527-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL90460UIE527-TK, 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 ISL90460UIE527-TK part is unused and in its original packaging.
Return procedure for ISL90460UIE527-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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