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Renesas ISL95310UIU10Z-TK
- Part No.:
- ISL95310UIU10Z-TK
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ISL95310UIU10Z-TK.pdf
- Description:
- IC DGTL POT 50KOHM 128TAP 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:14,986
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Product details
Overview
ISL95310UIU10Z-TK from Renesas (formerly Intersil) is a digitally controlled potentiometer (XDCP™) with 50kΩ total resistance, 128-tap up/down interface, and nonvolatile wiper position storage. It operates with terminal voltage up to +13.2V, features 70Ω typical wiper resistance at 3.3V, and supports industrial temperature range (–40°C to +85°C). It replaces mechanical potentiometers in precision bias and contrast control circuits.
For engineers reviewing the ISL95310UIU10Z-TK datasheet, ISL95310UIU10Z-TK pinout, ISL95310UIU10Z-TK application, or ISL95310UIU10Z-TK equivalent, key selection criteria include its 50kΩ RTOTAL, 0–13.2V DCP terminal voltage range, nonvolatile memory recall on power-up, 10-lead MSOP package, and Up/Down digital interface compatibility with microcontroller GPIOs.
Technical Context
The ISL95310UIU10Z-TK implements a 127-element resistor array with a digitally controlled wiper switch network driven by a 7-bit up/down counter. Wiper position is set via asynchronous CS/U/D/INC signals and stored in nonvolatile memory upon CS↑ while INC = HIGH - enabling deterministic power-on behavior without external configuration.
It supports two operating modes: voltage divider (RH–RW–RL) and variable resistor (RW–RL or RW–RH), with ratiometric temperature coefficient of ±4 ppm/°C and resistance TC of ±45 ppm/°C. The device requires strict power sequencing: VCC must be applied before or simultaneously with V+, and CS must be high before VCC ramp begins to prevent spurious store events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RTOTAL | 50kΩ - defines full-scale resistance between RH and RL terminals for gain/bias scaling. |
| Terminal Voltage Range | 0V to +13.2V - enables direct use in high-voltage analog signal paths without level-shifting. |
| Wiper Resolution | 128 taps (0.8% step) - provides 7-bit granularity for fine analog adjustment in closed-loop systems. |
| Wiper Resistance | 70Ω typical @ 3.3V - minimizes insertion error in low-impedance feedback networks. |
| Nonvolatile Endurance | 150,000 write cycles - supports field calibration and long-term parameter tuning over product lifetime. |
| Standby Current | 2µA @ VCC = 3.6V - enables battery-powered applications with infrequent adjustment. |
| Temperature Range | –40°C to +85°C - qualified for industrial and automotive under-hood environments. |
Pinout & Package
ISL95310UIU10Z-TK is housed in a RoHS-compliant 10-lead MSOP package (M10.118 outline), 3.0mm × 4.9mm footprint, 0.5mm pitch, with exposed pad optional per design.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 U/D | Direction control input | Logic level selects wiper increment (HIGH) or decrement (LOW); sampled on INC falling edge. |
| 2 GND | Analog/digital ground reference | Common return for VCC, V+, and DCP terminals; must be low-impedance for noise immunity. |
| 3 VCC | Digital logic supply | 2.7V–5.5V CMOS supply powering control logic and nonvolatile memory circuitry. |
| 4 CS | Chip select / store trigger | Active-low enable; rising edge with INC = HIGH initiates nonvolatile store of current wiper position. |
| 5 NC | No-connect | Internally unconnected; must remain floating or tied to GND per layout guidelines. |
| 6 RH | High-end potentiometer terminal | Fixed terminal connected to top of resistor ladder; voltage referenced to RL in divider mode. |
| 7 RW | Wiper output | Movable terminal delivering tapped voltage/resistance; exhibits 70Ω typical on-resistance. |
| 8 RL | Low-end potentiometer terminal | Fixed terminal connected to bottom of resistor ladder; serves as reference in divider or variable-resistor mode. |
| 9 V+ | Analog bias supply | 8.0V–13.2V supply powering wiper switches; must be applied after or with VCC to avoid undefined states. |
| 10 INC | Increment clock input | Negative-edge-triggered; each falling edge moves wiper one tap in direction set by U/D. |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last-set position across power cycles without external EEPROM or MCU intervention. |
| Make-before-break switching | Prevents open-circuit transients during wiper movement, critical for stable feedback loops. |
| Temperature-compensated array | ±4 ppm/°C ratiometric TC ensures stable voltage division over –40°C to +85°C. |
| Low leakage DCP pins | <1 µA max leakage at all terminals enables high-impedance sensor biasing and low-power sleep modes. |
| Pb-free MSOP package | RoHS-compliant 10-lead MSOP with matte tin finish, compatible with SnPb and Pb-free reflow profiles. |
Applications
| LCD Contrast Control | Power Supply Bias Trim |
|---|---|
Use Scenario: Adjusting contrast voltage for monochrome or segment LCD displays in industrial HMIs and medical panels. IC Role / Device Role / Timing Role: Two-terminal variable resistor between VDD and LCD V0 pin, setting DC bias level independent of display content. Use Value: Eliminates manual potentiometer replacement during production; enables factory calibration and field updates via simple GPIO toggling. | Use Scenario: Fine-tuning reference voltage or feedback divider ratio in isolated DC-DC converters for telecom and server PSUs. IC Role / Device Role / Timing Role: Three-terminal voltage divider in optocoupler feedback path, adjusting regulation setpoint without hardware change. Use Value: Supports ±0.5 LSB DNL and ±4 ppm/°C ratiometric stability, ensuring <±1% output tolerance over temperature and life. |
| Sensor Offset Calibration | Audio Channel Balance |
Use Scenario: Nulling offset drift in precision instrumentation amplifiers used with strain gauges or thermocouples. IC Role / Device Role / Timing Role: Variable resistor in amplifier's offset null network, adjusted during system self-test or maintenance mode. Use Value: 50kΩ RTOTAL and 70Ω wiper resistance minimize interaction with op-amp input bias currents, preserving accuracy. | Use Scenario: Matching left/right channel gain in professional audio DAC output stages or headphone amplifiers. IC Role / Device Role / Timing Role: Dual-channel volume control implemented using two ISL95310 devices synchronized via shared U/D/INC lines. Use Value: 128-tap resolution and nonvolatile storage maintain user-selected balance settings across power cycles without MCU overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5175BRMZ-50 | I²C interface, 256-tap, 50kΩ, 3.3V/5V single supply; no separate V+ rail required. | Requires I²C master; unsuitable where only GPIOs are available or where >13.2V analog rails exist. | Choose AD5175BRMZ-50 for systems with I²C infrastructure and lower analog voltage requirements. |
| MCP45HV51-503 | Up/down interface, 50kΩ, 128-tap, supports 13.2V analog rail but uses internal charge pump for V+ generation. | Eliminates external V+ supply; higher quiescent current (15µA vs. 2µA standby) and reduced endurance (100k cycles). | Choose MCP45HV51-503 when board space prohibits dedicated V+ routing and moderate endurance suffices. |
Compared with AD5175BRMZ-50 and MCP45HV51-503, the ISL95310UIU10Z-TK uniquely supports true 0–13.2V analog operation with ultra-low standby current and high endurance, making it optimal for high-voltage, low-power, and long-life industrial trimming applications where GPIO control is preferred over serial buses.
Availability
ISL95310UIU10Z-TK is available at Aetrix Electronics and suitable for LCD contrast control, power supply bias trim, sensor offset calibration, and audio channel balance applications requiring stable component supply, long-term calibration retention, and high-voltage analog compatibility.
Supply support for ISL95310UIU10Z-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
Renesas Electronics Corporation (acquired Intersil in 2017) is a global semiconductor leader delivering high-performance analog, power management, and embedded processing solutions for industrial, automotive, and infrastructure markets.
The ISL95310UIU10Z-TK belongs to Renesas' XDCP™ (eXternally Digitally Controlled Potentiometer) product line, designed specifically for replacing mechanical trimmers in harsh-environment systems where reliability, nonvolatile setting retention, and wide analog voltage range are critical.
FAQ
What is the maximum allowable voltage on the V+ pin of the ISL95310UIU10Z-TK?
The absolute maximum voltage on the V+ pin of the ISL95310UIU10Z-TK is +13.2V referenced to GND. Operating within the recommended range of 8.0V to 13.2V ensures specified performance for wiper switching and terminal voltage handling. Exceeding 13.2V risks permanent damage per Absolute Maximum Ratings.
Does the ISL95310UIU10Z-TK require an external EEPROM to retain wiper position after power loss?
No, the ISL95310UIU10Z-TK contains on-chip nonvolatile memory that stores the wiper position. Upon power-up, the device automatically recalls the last stored value into its volatile wiper counter register. This eliminates the need for external memory or MCU firmware to manage calibration persistence.
Can the ISL95310UIU10Z-TK operate with only a 3.3V VCC supply while controlling a 12V analog signal path?
Yes - the ISL95310UIU10Z-TK supports split-supply operation: VCC = 3.3V powers the digital logic, while V+ = 12V powers the analog resistor ladder and wiper switches. This allows safe, precise control of high-voltage analog signals using low-voltage microcontrollers without level shifters.
What is the wiper resistance specification for the ISL95310UIU10Z-TK and why does it matter?
The ISL95310UIU10Z-TK has a typical wiper resistance of 70Ω at 3.3V. This low on-resistance minimizes insertion error in precision voltage dividers and feedback networks, especially critical in high-gain amplifier biasing or low-impedance sensor interfaces where even tens of ohms can degrade accuracy.
How is nonvolatile storage triggered on the ISL95310UIU10Z-TK?
Nonvolatile storage on the ISL95310UIU10Z-TK is triggered by a rising edge on the CS pin while the INC pin is held HIGH. This sequence writes the current volatile wiper counter value into nonvolatile memory. The operation takes 20ms (tCPHS), after which the device enters standby mode until next selection.
ISL95310UIU10Z-TK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 1
- Number of Taps:
- 128
- Resistance (Ohms):
- 50k
- Interface:
- Up/Down (U/D, INC, CS)
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 2.7V ~ 5.5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±45ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 10-MSOP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 70
ISL95310UIU10Z-TK FAQ
1.How can I place an order for ISL95310UIU10Z-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL95310UIU10Z-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 ISL95310UIU10Z-TK reliable?
The price and inventory of ISL95310UIU10Z-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL95310UIU10Z-TK is usually 5 days.
3.What payment methods are accepted for ISL95310UIU10Z-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL95310UIU10Z-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL95310UIU10Z-TK?
ISL95310UIU10Z-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL95310UIU10Z-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 ISL95310UIU10Z-TK?
For technical support, including ISL95310UIU10Z-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL95310UIU10Z-TK requirements.
6.How does Aetrix verify that ISL95310UIU10Z-TK is sourced from the original manufacturer or authorized distributors?
All ISL95310UIU10Z-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 ISL95310UIU10Z-TK meets industry standards.
7.What is the process for return or replacement of ISL95310UIU10Z-TK?
All ISL95310UIU10Z-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL95310UIU10Z-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 ISL95310UIU10Z-TK part is unused and in its original packaging.
Return procedure for ISL95310UIU10Z-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL95310UIU10Z-TK Tags
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MCP4011T-103E/SN
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MCP4023T-103E/CH
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