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Analog Devices Inc. LTC2933IGN#TRPBF
- Part No.:
- LTC2933IGN#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC2933IGN#TRPBF.pdf
- Description:
- IC SUPERVISOR 6 CHANNEL 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,376
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Product details
Overview
LTC2933IGN#TRPBF from Analog Devices is a programmable hex voltage supervisor IC with EEPROM configuration, supervising up to six independent power rails (V1–V6), featuring ±1% threshold accuracy, I²C/SMBus interface, 256 programmable thresholds per channel, and three configurable GPIOs for fault signaling in high-availability server systems.
For engineers reviewing the LTC2933IGN#TRPBF datasheet, LTC2933IGN#TRPBF pinout, LTC2933IGN#TRPBF application, or LTC2933IGN#TRPBF equivalent, this page delivers verified specifications, validated pin functions, confirmed temperature-grade operation (–40°C to +85°C), and real-world use cases in telecom and data storage systems requiring autonomous fault logging and EEPROM-backed configuration retention.
Technical Context
The LTC2933IGN#TRPBF implements dual-comparator per-channel supervision (UV/OV) with three selectable input ranges per rail-precision (0.2–1.2 V), low (0.5–3 V), and medium (1–5.8 V)-and supports high-range monitoring (2.5–13.9 V) on V1. Thresholds are set via 8-bit DACs with LSB steps as fine as 4 mV (V2–V6 precision range).
Its I²C interface operates at up to 400 kHz, supports three slave addresses via ASEL pin selection (0x1C/0x1D/0x1E), and enables full register read/write, EEPROM store/restore, and ALERT response addressing. Internal 3.3 V regulator (VDD33) powers logic and requires a 220 nF bypass capacitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supervision Channels | 6 independent inputs (V1–V6) with dual UV/OV comparators per channel |
| Threshold Accuracy | ±1% over temperature for V2–V6 in precision/low/medium ranges; ±1.5% for V1 in medium range |
| I²C Interface | Standard-mode SMBus-compatible, 400 kHz max clock, 3 address options via ASEL pin |
| EEPROM | 10-year data retention, 10,000 write cycles, stores configuration and fault history snapshot |
| GPIO Flexibility | 3 bidirectional pins (GPIO1–GPIO3) configurable as open-drain outputs, weak pull-up outputs, or inputs with programmable delay-on-release (0.001–2200 ms) |
| Operating Temp | –40°C to +85°C (Industrial grade), validated for continuous operation in network server chassis environments |
| Supply Range | V1: 3.4–13.9 V; V2–V4: 3.4–5.8 V; V5–V6: 0.2–5.8 V; VDD33 output: 3.22–3.37 V @ –1 mA |
Pinout & Package
Package: 16-lead plastic SSOP (narrow), 5.3 mm × 5.3 mm body, 0.65 mm pitch, exposed pad not present (GN package). Compatible with standard reflow profiles; thermal resistance θJA = 110°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V5, V6 | Low-voltage supervisor inputs | Accept 0.2–5.8 V rails; support precision-range thresholds down to 4 mV LSB step |
| GPI1, GPI2 | General-purpose inputs | Configurable as MR, UVDIS, MARG, or AUXC; each with 15 µA internal pull-up to VDD33 |
| SCL, SDA | I²C bus interface | Require external pull-ups; support 400 kHz clock; tolerate 0–6 V input; hysteresis = 40 mV |
| GPIO1–GPIO3 | Programmable I/O | Support open-drain or weak pull-up output modes; polarity and delay-on-release fully software-configurable |
| VDD33 | Internal 3.3 V regulator output | Supplies internal logic; requires 220 nF ceramic capacitor to GND; ±2.5% regulation over load/temp |
| GND | Ground reference | Primary return path for all analog and digital circuitry; must be low-impedance connection |
| ASEL | I²C address select | Connect to GND/VDD33/floating to select 7-bit slave address 0x1C/0x1D/0x1E |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-backed autonomous operation | Retains full configuration and last-fault snapshot across power cycles without host intervention |
| Per-channel triple-range threshold selection | Enables accurate supervision of diverse rails-from 0.2 V core supplies to 12 V bias rails-within one device |
| Programmable GPIO delay-on-release | Eight discrete delay settings (0.001–2200 ms) prevent nuisance resets during transient recovery |
| ALERT output compliance | Meets SMBus Alert Response Address (0x0C) protocol; latched until cleared by host command or status read |
| Functional safety enabler | Supports system-level ISO 26262 and IEC 61508 requirements via deterministic fault logging and EEPROM-backed history |
Applications
| Telecom Line Card Power Monitoring | Data Storage RAID Controller Supervision |
|---|---|
Use Scenario: Real-time monitoring of 12 V bias, 3.3 V I/O, 1.8 V memory, and 0.85 V FPGA core rails on a carrier-grade line card. IC Role / Device Role / Timing Role: Hex supervisor providing independent UV/OV detection per rail, with EEPROM-stored trip points and fault history for field diagnostics. Use Value: Eliminates need for six discrete supervisors; reduces BOM count by 83% and PCB area by >40% versus discrete solutions. | Use Scenario: Fault-aware power sequencing and health reporting for multi-rail SAS/SATA controller board with hot-swap capability. IC Role / Device Role / Timing Role: Centralized supervision node that asserts ALERT on any rail fault and logs timestamped event history to internal EEPROM. Use Value: Enables predictive maintenance via persistent fault records; supports firmware-triggered margin testing using MARG input mode. |
| High-Availability Server PSU Management | Industrial Edge Compute Module |
Use Scenario: Coordinating power-good status across redundant AC/DC PSUs and intermediate DC/DC converters in a 1U server chassis. IC Role / Device Role / Timing Role: Supervisor with GPI1/GPI2 configured as manual reset and margin test inputs; GPIO1–GPIO3 drive isolated fault LEDs and PMBus alert lines. Use Value: Guarantees ±1% threshold accuracy across –40°C to +85°C, reducing false trips by >90% versus ±3% alternatives in thermally stressed chassis. | Use Scenario: Monitoring 24 V input, 5 V backplane, 3.3 V logic, and 1.2 V SoC rails in an IP67-rated edge gateway operating in variable ambient conditions. IC Role / Device Role / Timing Role: Configurable supervisor with V1–V4 powered from highest available rail; GPIO3 drives watchdog enable signal to microcontroller. Use Value: Internal VDD33 regulator eliminates need for external LDO; 16-pin SSOP footprint simplifies layout in space-constrained industrial modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6816GWE+T | Quad supervisor only; no EEPROM; fixed thresholds; no I²C interface; 16-pin SOIC package | Limited to four rails; no remote configuration or fault history; suited for cost-sensitive, static designs | Select when EEPROM, I²C, or >4 channels are unnecessary and BOM cost is primary constraint |
| TPS389033QDSGRQ1 | Triple supervisor with I²C; ±0.75% accuracy; no EEPROM; AEC-Q100 qualified; 10-pin WSON | Automotive-grade only; lacks sixth channel and EEPROM backup; smaller footprint but lower integration | Select for automotive infotainment or ADAS domains where qualification and compact size outweigh multi-rail flexibility |
Compared with MAX6816GWE+T and TPS389033QDSGRQ1, the LTC2933IGN#TRPBF provides unique value in enterprise infrastructure through its six-channel supervision, ±1% accuracy over temperature, EEPROM persistence, and full I²C configurability-enabling adaptive power management unattainable with fixed-threshold or lower-channel-count alternatives.
Availability
LTC2933IGN#TRPBF is available at Aetrix Electronics and suitable for high-availability computer systems, telecom equipment, and data storage systems requiring stable component supply, long-term lifecycle support, and guaranteed industrial-temperature operation.
Supply support for LTC2933IGN#TRPBF 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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, communications, automotive, and healthcare markets since 1965.
The LTC2933 belongs to Analog Devices' precision power monitoring product line, designed specifically for complex multi-rail systems in servers, storage, and telecom infrastructure where reliability, configurability, and fault diagnostics are critical.
FAQ
What is the operating temperature range of the LTC2933IGN#TRPBF?
The LTC2933IGN#TRPBF is rated for industrial operation from –40°C to +85°C. This grade is confirmed in the official Analog Devices order information table and applies to both the DFN and SSOP packages bearing the "I" suffix. The device maintains full electrical performance-including ±1% threshold accuracy and EEPROM functionality-across this entire range, with derating guidance provided for EEPROM endurance above 85°C junction temperature.
Does the LTC2933IGN#TRPBF require external components for basic operation?
Yes, the LTC2933IGN#TRPBF requires a 220 nF ceramic capacitor between VDD33 and GND for stable internal regulator operation, plus external pull-up resistors on SCL and SDA lines (typically 2.2–10 kΩ to 3.3 V). Bypass capacitors (≥0.1 µF) are also recommended on each monitored supply input (V1–V6) to ensure noise immunity and accurate threshold detection.
How many voltage rails can the LTC2933IGN#TRPBF monitor simultaneously?
The LTC2933IGN#TRPBF monitors up to six independent voltage rails (V1 through V6) simultaneously. Each rail has dedicated dual comparators for overvoltage and undervoltage detection, with programmable thresholds, polarity, and response delays. V1 supports high-voltage monitoring up to 13.9 V, while V2–V6 cover low-to-medium ranges down to 0.2 V with 4 mV resolution in precision mode.
Can the LTC2933IGN#TRPBF retain its configuration after power loss?
Yes, the LTC2933IGN#TRPBF retains full configuration-including all channel thresholds, GPIO settings, and fault history-in internal EEPROM. The STORE_USER command writes volatile register contents to EEPROM, and RESTORE_USER reloads them at power-up or on demand. EEPROM guarantees 10 years of data retention and 10,000 write cycles under specified operating conditions.
What is the function of the ASEL pin on the LTC2933IGN#TRPBF?
The ASEL pin on the LTC2933IGN#TRPBF selects one of three I²C slave addresses: tied to GND (0x1C), floating (0x1D), or tied to VDD33 (0x1E). This enables multiple LTC2933IGN#TRPBF devices on the same I²C bus without address conflict. It does not affect functionality beyond address selection and has no impact on supervision behavior or GPIO configuration.
LTC2933IGN#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 6
- Voltage - Threshold:
- Adjustable/Selectable
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- Adjustable/Selectable
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
LTC2933IGN#TRPBF FAQ
1.How can I place an order for LTC2933IGN#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2933IGN#TRPBF 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 LTC2933IGN#TRPBF reliable?
The price and inventory of LTC2933IGN#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2933IGN#TRPBF is usually 5 days.
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LTC2933IGN#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2933IGN#TRPBF 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 LTC2933IGN#TRPBF?
For technical support, including LTC2933IGN#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2933IGN#TRPBF requirements.
6.How does Aetrix verify that LTC2933IGN#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2933IGN#TRPBF 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 LTC2933IGN#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2933IGN#TRPBF?
All LTC2933IGN#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2933IGN#TRPBF, 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 LTC2933IGN#TRPBF part is unused and in its original packaging.
Return procedure for LTC2933IGN#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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