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Analog Devices Inc. LTC6992IDCB-2#TRPBF
- Part No.:
- LTC6992IDCB-2#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- 6-WFDFN Exposed Pad
- Datasheet:
-
LTC6992IDCB-2#TRPBF.pdf
- Description:
- IC OSC SILICON PROG 6-DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,134
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Product details
Overview
LTC6992IDCB-2#TRPBF from Analog Devices is a voltage-controlled pulse width modulator (PWM) IC in the TimerBlox family, designed for precision analog duty-cycle control. It delivers 5% to 95% adjustable PWM output with ±3.7% max duty cycle error, 3.81Hz–1MHz programmable frequency via RSET and DIV pin, and operates from 2.25V–5.5V supply. Used in LED dimming, heater control, and servo loops where stable, low-drift timing is critical.
For engineers reviewing the LTC6992IDCB-2#TRPBF datasheet, LTC6992IDCB-2#TRPBF pinout, LTC6992IDCB-2#TRPBF application, or LTC6992IDCB-2#TRPBF equivalent, this page provides verified package mapping (6-lead DFN), confirmed pin functions (MOD, SET, DIV, OUT, V+, GND), duty-cycle clamping behavior (5%/95%), temperature-stable frequency accuracy (±1.7% over –40°C to +85°C), and validated automotive-grade alternatives.
Technical Context
The LTC6992IDCB-2#TRPBF integrates a master oscillator (1MHz max) with a programmable divider (NDIV = 1, 4, 16, ..., 16384) and analog PWM core. Its SET pin regulates VSET to 1.00V ±30mV, enabling frequency programming via external resistor RSET (50kΩ–800kΩ), while MOD pin accepts 0.1×VSET to 0.9×VSET (≈100mV–900mV) for linear duty-cycle control.
Internal 4-bit A/D on the DIV pin selects NDIV and polarity (POL bit); output is CMOS with ±20mA drive capability, 30Ω typical output resistance, and 500µs startup time. Frequency drift is ±0.005%/°C and supply drift ≤0.65%/V - critical for industrial and automotive thermal environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Duty Cycle Range | 5% to 95% - ensures safe operation in motor/LED drivers without full-on or full-off saturation. |
| Frequency Range | 3.81Hz to 1MHz - supports ultra-low-power sleep-mode timing and high-speed PWM control. |
| Frequency Accuracy | ±1.7% max over –40°C to +85°C - eliminates need for external calibration in production systems. |
| Duty Cycle Error | ±3.7% max - enables precise brightness/heat regulation without closed-loop feedback. |
| Supply Voltage | 2.25V to 5.5V - compatible with Li-ion, 3.3V, and 5V logic rails without level-shifting. |
| Quiescent Current | 105µA to 450µA - scales with NDIV and RSET; enables battery life extension in portable equipment. |
| Operating Temp | –40°C to +85°C - qualified for industrial and automotive under-hood applications. |
Pinout & Package
Package: 6-lead (2mm × 3mm) plastic DFN (DCB), exposed pad (Pin 7) connected to GND. RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 6) | Digital PWM output | CMOS rail-to-rail output sourcing/sinking up to ±20mA; drives LEDs, MOSFET gates, or optocouplers directly. |
| GND (Pin 2) | Analog/digital ground reference | Low-inductance return path for SET, MOD, and output current; must connect to exposed pad for thermal stability. |
| MOD (Pin 1) | Analog duty-cycle control input | Accepts 0.1×VSET to 0.9×VSET (≈100mV–900mV); linearly maps to 5%–95% output duty cycle. |
| V+ (Pin 5) | Power supply input | 2.25V–5.5V single supply; requires local 0.1µF bypass capacitor to GND for noise immunity. |
| DIV (Pin 4) | Divider ratio and polarity select | Voltage divider sets NDIV (1–16384) and POL bit; <100pF capacitance required for accurate A/D conversion. |
| SET (Pin 3) | Frequency-setting input | Regulated to 1.00V; ISET = VSET/RSET programs master oscillator; RSET = 50kΩ–800kΩ sets fOUT range. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable frequency divider | Eight NDIV options (1, 4, 16, ..., 16384) enable precise sub-MHz output frequencies without external counters. |
| On-chip VSET regulation | 1.00V ±30mV reference eliminates RSET tolerance impact on frequency - only resistor accuracy matters. |
| Automotive qualification | AEC-Q100 Grade I (–40°C to +85°C) - certified for engine control, lighting, and ADAS subsystems. |
| Low-jitter performance | 0.07% RMS jitter at NDIV=4 - ensures clean edges for EMI-sensitive motor and audio applications. |
| Fast startup time | 500µs typical - meets real-time response requirements in power-supply sequencing and safety-critical systems. |
Applications
| LED Dimming Control | Heater Temperature Regulation |
|---|---|
Use Scenario: Adjustable brightness control for automotive interior lighting using constant-current LED drivers. IC Role / Device Role / Timing Role: LTC6992IDCB-2#TRPBF generates stable 100Hz–20kHz PWM signal with 5%–95% duty cycle to modulate LED current without audible noise. Use Value: Eliminates flicker and color shift by maintaining ±3.7% duty cycle accuracy across temperature and supply variations. | Use Scenario: Closed-loop thermal management in industrial ovens using resistive heating elements. IC Role / Device Role / Timing Role: LTC6992IDCB-2#TRPBF supplies variable-duty PWM to TRIAC driver ICs, adjusting average power delivered to heater coils. Use Value: Enables precise 0.5°C temperature resolution via 5%–95% linear duty control, independent of line-voltage fluctuations. |
| PWM Servo Loops | High-Vibration Motor Control |
Use Scenario: Position control of RC-style servos in robotics and UAV gimbal systems. IC Role / Device Role / Timing Role: LTC6992IDCB-2#TRPBF produces standard 50Hz PWM with 5%–95% pulse width (1ms–2ms) synchronized to microcontroller timing. Use Value: Guarantees ±1.7% frequency stability over –40°C to +85°C - prevents servo jitter during cold-start or thermal cycling. | Use Scenario: Brushless DC motor commutation timing in off-road vehicle actuators subject to shock and vibration. IC Role / Device Role / Timing Role: LTC6992IDCB-2#TRPBF serves as robust, standalone PWM source for gate drivers when MCU clock fails or resets. Use Value: Maintains functional safety via internal POR and 500µs fast startup - sustains motor control during transient brownouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PWM generator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6992IDCB-1#TRPBF | 0%–100% duty cycle range; no hard clamps at extremes - allows full on/off control but higher risk of latch-up in sensitive loads. | Suitable for applications requiring complete output disable (0%) or continuous conduction (100%), e.g., power switch gating. | Select LTC6992IDCB-1#TRPBF only if system design explicitly requires 0% or 100% duty cycle; otherwise LTC6992IDCB-2#TRPBF's 5%/95% guard band improves reliability. |
| LTC6992IDCB-3#TRPBF | 0%–95% duty cycle; minimum clamp at 0% but maximum limited to 95% - offers partial fail-safe behavior with full-off capability. | Preferred for systems needing guaranteed shutdown (0%) but avoiding 100% duty cycle due to thermal or safety constraints. | Choose LTC6992IDCB-3#TRPBF when fail-safe OFF state is mandatory and 95% max duty suffices; LTC6992IDCB-2#TRPBF better suits symmetric control ranges. |
Compared with LTC6992IDCB-1#TRPBF and LTC6992IDCB-3#TRPBF, the LTC6992IDCB-2#TRPBF provides symmetrical 5%/95% clamping - reducing stress on downstream FETs and improving long-term reliability in thermal cycling environments without sacrificing resolution.
Availability
LTC6992IDCB-2#TRPBF is available at Aetrix Electronics and suitable for LED dimming control, heater temperature regulation, PWM servo loops, and high-vibration motor control requiring stable component supply across industrial and automotive production cycles.
Supply support for LTC6992IDCB-2#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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC6992IDCB-2#TRPBF belongs to the TimerBlox family - silicon timing devices engineered for plug-and-play analog programmability, eliminating crystal oscillators, external capacitors, and complex PLL configuration in space- and cost-constrained designs.
FAQ
What is the duty cycle range of the LTC6992IDCB-2#TRPBF?
The LTC6992IDCB-2#TRPBF has a guaranteed duty cycle range of 5% to 95%, with hard clamps preventing output from reaching 0% or 100%. This avoids unintended full-on or full-off states in motor drivers and LED circuits, enhancing system safety and longevity. The clamping is inherent to the device version and does not require external circuitry.
How do I set the output frequency of the LTC6992IDCB-2#TRPBF?
The output frequency of the LTC6992IDCB-2#TRPBF is set using two elements: an external resistor RSET (50kΩ–800kΩ) connected between SET and GND to program the master oscillator, and the DIV pin voltage to select the division ratio NDIV (1, 4, 16, ..., 16384). The formula is fOUT = 1MHz × 50kΩ / (NDIV × RSET), with ±1.7% total accuracy over temperature.
Does the LTC6992IDCB-2#TRPBF require external components for basic operation?
Yes - the LTC6992IDCB-2#TRPBF requires at minimum: (1) a 0.1µF ceramic capacitor from V+ to GND, (2) RSET from SET to GND, and (3) a resistor divider on the DIV pin to select NDIV. The MOD pin needs only an analog voltage source (e.g., DAC or potentiometer). No crystal, inductor, or trimming capacitor is needed - all timing is silicon-based.
Is the LTC6992IDCB-2#TRPBF qualified for automotive applications?
Yes - the LTC6992IDCB-2#TRPBF is AEC-Q100 Grade I qualified (–40°C to +85°C operating range) and manufactured under automotive quality controls. It is specified for use in body electronics, lighting, HVAC, and ADAS subsystems where reliability under thermal stress and vibration is mandatory.
What is the maximum output drive capability of the LTC6992IDCB-2#TRPBF?
The LTC6992IDCB-2#TRPBF features a CMOS output stage capable of sourcing and sinking up to ±20mA at V+ = 2.25V–5.5V. Output high voltage is ≥4.84V at 5.5V supply and –16mA load; low voltage is ≤0.26V at same conditions. For loads exceeding 20mA, an external buffer or MOSFET driver is recommended.
LTC6992IDCB-2#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- TimerBlox®
- Package/Case:
- 6-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Oscillator, Silicon
- Count:
- -
- Frequency:
- 3.81Hz ~ 1MHz
- Voltage - Supply:
- 2.25V ~ 5.5V
- Current - Supply:
- 365 µA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 6-DFN (2x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC6992IDCB-2#TRPBF FAQ
1.How can I place an order for LTC6992IDCB-2#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6992IDCB-2#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 LTC6992IDCB-2#TRPBF reliable?
The price and inventory of LTC6992IDCB-2#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6992IDCB-2#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6992IDCB-2#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6992IDCB-2#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6992IDCB-2#TRPBF?
LTC6992IDCB-2#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6992IDCB-2#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 LTC6992IDCB-2#TRPBF?
For technical support, including LTC6992IDCB-2#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6992IDCB-2#TRPBF requirements.
6.How does Aetrix verify that LTC6992IDCB-2#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6992IDCB-2#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 LTC6992IDCB-2#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6992IDCB-2#TRPBF?
All LTC6992IDCB-2#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6992IDCB-2#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 LTC6992IDCB-2#TRPBF part is unused and in its original packaging.
Return procedure for LTC6992IDCB-2#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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