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Renesas ISL54051IHZ-T
- Part No.:
- ISL54051IHZ-T
- Manufacturer:
- Renesas
- Package:
- SOT-23-6
- Datasheet:
-
ISL54051IHZ-T.pdf
- Description:
- IC SWITCH SPST-NOX1 860MOHM 6SOT
- Quantity:
- Payment:
- Shipping:
Inventory:3,098
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Product details
Overview
ISL54051IHZ-T from Renesas (formerly Intersil) is a single-pole, single-throw (SPST), normally open (NO) analog switch optimized for low-voltage, battery-powered systems. It operates from a single +1.8V to +5.5V supply, delivers 0.8Ω typical ON-resistance at 5V, achieves 24ns turn-on/10ns turn-off times, and supports 1.8V logic compatibility - enabling precise signal routing in space-constrained portable electronics.
For engineers reviewing the ISL54051IHZ-T datasheet, ISL54051IHZ-T pinout, ISL54051IHZ-T application, or ISL54051IHZ-T equivalent, this device is selected for ultra-low rON, minimal charge injection (26pC), high off-isolation (80dB @ 100kHz), and SOT-23 footprint compatibility in audio/video switching, medical sensor interfaces, and handheld ASIC I/O expansion.
Technical Context
The ISL54051IHZ-T implements a submicron CMOS SPST switch architecture with bidirectional analog signal handling and integrated level-shifting logic. Its V+ and GND pins power both the analog switch core and digital control circuitry, eliminating need for dual supplies.
It features ESD protection diodes on all analog pins (NO, NC, COM), limiting signal voltage to within GND and V+ ±0.5V, and requires strict supply sequencing (V+ applied before input signals) to prevent forward-biasing those diodes. The NO configuration ensures open-circuit default state under logic-low control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Single SPST, Normally Open (NO) - remains open until logic-high enable signal applied |
| rON @ 5V | 0.8 Ω typical - enables minimal voltage drop and power loss in high-current analog paths |
| tON/tOFF | 24 ns / 10 ns @ 4.5V - supports fast multiplexing in real-time audio and data acquisition |
| Analog Signal Range | 0 V to V+ - full rail-to-rail switching without external biasing or clamping networks |
| Logic Compatibility | 1.8V CMOS input threshold (VINH = 1.4V min @ 3V supply) - interoperable with modern low-voltage microcontrollers |
| ESD Rating (HBM) | >6 kV - robust handling in manual assembly and end-user portable environments |
| Package | 6-lead SOT-23 (MDP0038) - 2.9 mm × 2.8 mm footprint, compatible with standard pick-and-place and reflow processes |
Pinout & Package
ISL54051IHZ-T is housed in a RoHS-compliant, Pb-free 6-lead SOT-23 package (MDP0038), measuring 2.9 mm × 2.8 mm × 1.3 mm, with gull-wing leads and matte tin (e3) termination. Thermal resistance θJA is 260°C/W, suitable for moderate-power analog routing in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (N.C.) | No Connect | Internally unconnected - must be left floating or tied to GND per layout best practice; no electrical function |
| 2 (IN) | Digital Control Input | CMOS-compatible logic input; drives internal level shifter; logic-high (≥1.4V @ 3V) closes switch |
| 3 (NO) | Normally Open Switch Terminal | Analog path endpoint that connects to COM only when IN = high; isolated otherwise |
| 4 (GND) | Ground Reference | Common return for analog signals and digital logic; must be low-impedance for noise control |
| 5 (V+) | Positive Supply Rail | Single supply input (1.8–5.5V); powers analog switch core and input logic; must be stable and filtered |
| 6 (COM) | Common Analog Terminal | Central bidirectional node - routes signal between NO and system path; supports rail-to-rail analog swing |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ON-resistance flatness | 0.25 Ω max over full analog range at 4.5V - preserves signal integrity across varying input voltages |
| Bidirectional analog operation | Signal flows equally well from COM to NO or NO to COM - eliminates directionality constraints in signal chains |
| Low charge injection | 26 pC typical - minimizes transient glitches during switching in precision ADC front-ends and sensor interfaces |
| High off-isolation | 80 dB @ 100 kHz - suppresses crosstalk between adjacent channels in multi-signal portable devices |
| 1.8V logic compatibility | VINH = 1.4V min at 3V supply - enables direct interface with 1.8V/3.3V I/O domains without level shifters |
Applications
| Cellular Phone Audio Routing | Portable Medical Sensor Multiplexing |
|---|---|
|
Use Scenario: Selecting between multiple microphone inputs or speaker outputs in a smartphone while minimizing distortion and power draw. IC Role / Device Role / Timing Role: SPST analog switch providing low-rON signal path selection under baseband processor GPIO control. Use Value: 0.8Ω rON and 0.012% THD preserve audio fidelity; 24ns switching enables rapid channel changes during call handover or voice assistant activation. |
Use Scenario: Time-division multiplexing of ECG, SpO₂, and temperature sensor outputs into a shared ADC channel in a wearable monitor. IC Role / Device Role / Timing Role: Normally open switch isolating each sensor path until sequentially enabled by MCU timer-driven GPIO. Use Value: 300nA max leakage prevents DC offset accumulation; 26pC charge injection avoids baseline drift in high-gain analog front-ends. |
| Laptop Docking Station Video Switching | Industrial Handheld Test Equipment |
|
Use Scenario: Routing HDMI or DisplayPort auxiliary channels (DDC, HPD) between laptop and multiple external displays via a compact dock. IC Role / Device Role / Timing Role: Low-capacitance analog switch managing bidirectional I²C and hot-plug detect signals without protocol interference. Use Value: 16pF COFF and 48pF CCOM(ON) minimize signal rise/fall time degradation; 190MHz -3dB bandwidth supports fast-edged DDC clock signals. |
Use Scenario: Configuring test signal paths (e.g., calibrating reference voltages or injecting test tones) in a handheld multimeter or oscilloscope probe interface. IC Role / Device Role / Timing Role: Precision analog switch enabling reconfigurable signal conditioning paths under firmware control. Use Value: 0.25Ω rON flatness ensures consistent gain accuracy across full input range; >6kV HBM ESD rating withstands field technician handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMUX1574RTER | 4-channel SPDT, 0.5Ω rON @ 3.3V, 1.6mm × 2.1mm WQFN - higher integration but different topology and pinout | Requires PCB redesign; suited for multi-channel consolidation rather than discrete NO switching | Select TMUX1574RTER only if consolidating ≥2 switches and accepting QFN assembly complexity. |
| ADG801BRMZ-REEL7 | Single SPST NO, 0.3Ω rON @ 5V, 3mm × 3mm MSOP - lower rON but larger footprint and higher cost | Compatible with same control logic but occupies ~2.5× more board area; better for high-current analog paths | Choose ADG801BRMZ-REEL7 when <0.5Ω rON is critical and SOT-23 size constraint is relaxed. |
Compared with TMUX1574RTER and ADG801BRMZ-REEL7, the ISL54051IHZ-T offers optimal balance of ultra-small SOT-23 size, 0.8Ω rON, and 1.8V logic support - making it the preferred choice for space-limited, low-voltage portable designs where discrete NO switching suffices.
Availability
ISL54051IHZ-T is available at Aetrix Electronics and suitable for cellular phone audio routing, portable medical sensor multiplexing, laptop docking station video switching, and industrial handheld test equipment requiring stable component supply and long-term obsolescence management.
Supply support for ISL54051IHZ-T 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, formed from the merger of NEC Electronics and Renesas Technology, is a global semiconductor leader delivering microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and IoT markets.
The ISL54051IHZ-T belongs to Renesas' legacy Intersil analog switch portfolio, engineered specifically for ultra-low-voltage, high-speed signal routing in battery-powered portable electronics with stringent size and power constraints.
FAQ
What is the maximum supply voltage rating for the ISL54051IHZ-T?
The ISL54051IHZ-T has an absolute maximum V+ rating of 6.5V, but its specified operating range is +1.8V to +5.5V. Operation above 5.5V risks permanent damage and violates the device's qualified performance envelope. For reliable long-term use, maintain V+ within 1.8V–5.5V and ensure proper supply sequencing (V+ powered before any input signals).
Does the ISL54051IHZ-T support bidirectional analog signal flow?
Yes, the ISL54051IHZ-T supports fully bidirectional analog signal flow between its COM and NO terminals. As a CMOS-based SPST switch, it imposes no inherent directionality - signals pass equally well from COM to NO or NO to COM, provided voltage levels remain within the 0V to V+ analog range and do not exceed the absolute maximum ratings.
What is the meaning of "N.C." on Pin 1 of the ISL54051IHZ-T SOT-23 package?
"N.C." on Pin 1 of the ISL54051IHZ-T stands for "No Connect" - this terminal is not bonded internally and serves no electrical function. It must be left floating or optionally tied to GND for mechanical stability; connecting it to V+ or driving it actively may cause unpredictable behavior or reliability issues.
How does the ISL54051IHZ-T achieve 1.8V logic compatibility while operating from a 3V supply?
The ISL54051IHZ-T achieves 1.8V logic compatibility through internal level-shifting circuitry that translates a 1.4V minimum logic-high input (VINH) into full gate drive for the analog switch transistors. When V+ = 3.0V, the datasheet specifies VINH = 1.4V min and VINL = 0.5V max - matching standard 1.8V CMOS output thresholds and eliminating need for external level shifters.
Is the ISL54051IHZ-T still recommended for new designs?
No - the ISL54051IHZ-T is marked "EOL PRODUCT" with "NO RECOMMENDED REPLACEMENT" in the official Renesas datasheet (FN6459 Rev 3.00). While Aetrix Electronics maintains legacy supply for existing production, new designs should evaluate modern alternatives such as the TMUX1574 or ADG801 series for improved specs, active support, and long-term availability assurance.
ISL54051IHZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 860mOhm (Typ)
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 24ns, 10ns
- -3db Bandwidth:
- 190MHz
- Charge Injection:
- 26pC
- Channel Capacitance (CS(off), CD(off)):
- 16pF
- Current - Leakage (IS(off)) (Max):
- 10nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-SOT
ISL54051IHZ-T FAQ
1.How can I place an order for ISL54051IHZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL54051IHZ-T 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 ISL54051IHZ-T reliable?
The price and inventory of ISL54051IHZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL54051IHZ-T is usually 5 days.
3.What payment methods are accepted for ISL54051IHZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL54051IHZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL54051IHZ-T?
ISL54051IHZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL54051IHZ-T 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 ISL54051IHZ-T?
For technical support, including ISL54051IHZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL54051IHZ-T requirements.
6.How does Aetrix verify that ISL54051IHZ-T is sourced from the original manufacturer or authorized distributors?
All ISL54051IHZ-T 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 ISL54051IHZ-T meets industry standards.
7.What is the process for return or replacement of ISL54051IHZ-T?
All ISL54051IHZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL54051IHZ-T, 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 ISL54051IHZ-T part is unused and in its original packaging.
Return procedure for ISL54051IHZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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