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Analog Devices Inc. LTC6992CDCB-2#TRPBF
- Part No.:
- LTC6992CDCB-2#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- 6-WFDFN Exposed Pad
- Datasheet:
-
LTC6992CDCB-2#TRPBF.pdf
- Description:
- IC OSC SILICON PROG 6-DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,851
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Product details
Overview
LTC6992CDCB-2#TRPBF from Analog Devices is a voltage-controlled pulse width modulator (PWM) IC in the TimerBlox family, designed for precise analog-digital timing control. It delivers 5% to 95% duty cycle range, 3.81Hz–1MHz output frequency, ±1.7% max frequency error, and operates from 2.25V–5.5V supply. Used in LED dimming, heater control, and servo loops where stable, low-power PWM generation is required.
For engineers reviewing the LTC6992CDCB-2#TRPBF datasheet, LTC6992CDCB-2#TRPBF pinout, LTC6992CDCB-2#TRPBF application, or LTC6992CDCB-2#TRPBF equivalent, this page provides verified package mapping (6-lead DFN, 2mm × 3mm), confirmed MOD/SET/DIV pin functions, duty-cycle clamping behavior, and validated automotive-grade alternatives for industrial thermal and lighting control designs.
Technical Context
The LTC6992CDCB-2#TRPBF implements a master oscillator with programmable divider (NDIV = 1, 4, 16, ..., 16384) and analog PWM input on the MOD pin. Its internal 4-bit A/D converter interprets DIV pin voltage to set both NDIV and polarity (POL bit), while VSET is regulated to 1.00V ±30mV to decouple frequency accuracy from supply drift.
It features CMOS output capable of sourcing/sinking 20mA, 500µs startup time, and <3.7% max PWM duty cycle error over temperature. The device uses a single external RSET resistor (50kΩ–800kΩ) to program fOUT, with frequency equation fOUT = 1MHz × 50kΩ / (NDIV × RSET), valid across its full operating range (0°C to 70°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency Range | 3.81Hz to 1MHz - supports ultra-low-power sleep-mode timing and high-speed LED switching without external clock sources. |
| Duty Cycle Range | 5% to 95% - prevents output saturation in closed-loop thermal control and avoids zero-current conditions in MOSFET gate drives. |
| Frequency Accuracy | ±1.7% max over temperature - enables reliable timing in unregulated environments without calibration. |
| Supply Voltage | 2.25V to 5.5V - compatible with Li-ion, 3.3V logic, and legacy 5V systems without level-shifting. |
| Supply Current | 105µA to 450µA - scales with RSET and NDIV; enables battery operation >10 years in low-duty-cycle sensor nodes. |
| Operating Temp | 0°C to 70°C - specified performance range for commercial-grade embedded control applications. |
| Output Drive | ±20mA CMOS - directly drives small-signal MOSFETs, LEDs, or optocouplers without buffer stages. |
Pinout & Package
Package: 6-lead (2mm × 3mm) plastic DFN (DCB), exposed pad (Pin 7) connected to GND. Low-profile 1mm height suitable for space-constrained PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | 2.25V–5.5V rail; requires local 0.1µF bypass to GND for noise immunity and stable oscillation. |
| DIV | Programmable divider & polarity select | 4-bit A/D input; resistor divider sets NDIV (1–16384) and POL bit to invert output polarity. |
| SET | Frequency-setting node | Regulated at 1.00V; ISET = VSET/RSET programs master oscillator; RSET = 50kΩ–800kΩ. |
| MOD | Analog PWM control input | 0.1×VSET to 0.9×VSET (≈100mV–900mV) linearly controls duty cycle; clamps at 5%/95% limits. |
| GND | Ground reference | Low-inductance return path; exposed pad must be connected to PCB ground plane for thermal and EMI performance. |
| OUT | PWM output driver | CMOS rail-to-rail output; 30Ω typical drive impedance; sinks/sources up to 20mA into resistive loads. |
Key Features
| Feature | Design Value |
|---|---|
| Voltage-controlled PWM | 0V–1V analog MOD input maps linearly to 5%–95% duty cycle-enables direct interface with DACs or op-amp feedback signals. |
| Single-resistor frequency programming | RSET sets fOUT with no trimming or calibration needed; tolerance-driven accuracy dominates total error budget. |
| Programmable division ratio | 8 discrete NDIV settings (1–16384) via DIV pin voltage-allows one BOM part to cover wide frequency ranges across product variants. |
| Low quiescent current | As low as 105µA at V+ = 2.25V, RSET = 800kΩ, NDIV ≥ 16-extends battery life in portable instrumentation and IoT edge nodes. |
| Robust start-up behavior | 500µs guaranteed start-up time with POR circuitry-ensures deterministic initialization after power-on or brownout recovery. |
Applications
| LED Dimming Control | Heater Temperature Regulation |
|---|---|
|
Use Scenario: Precise brightness control of high-efficiency white LEDs in architectural lighting fixtures with ambient light feedback. IC Role / Device Role / Timing Role: LTC6992CDCB-2#TRPBF generates stable, low-jitter PWM signal driving MOSFET switch; MOD pin accepts filtered op-amp output from photodiode amplifier. Use Value: 5%–95% duty cycle range avoids LED turn-off flicker and ensures smooth dimming down to 0.5% perceived brightness. |
Use Scenario: Closed-loop thermal management of industrial oven zones using thermistor-based PID output. IC Role / Device Role / Timing Role: LTC6992CDCB-2#TRPBF converts analog PID voltage into PWM gate drive for TRIAC or MOSFET heating element control. Use Value: ±1.7% frequency accuracy maintains consistent thermal time constants across temperature and supply variations. |
| PWM Servo Loops | High-Vibration Motor Control |
|
Use Scenario: Position stabilization in drone gimbal actuators subject to mechanical resonance and EMI. IC Role / Device Role / Timing Role: LTC6992CDCB-2#TRPBF supplies clean, jitter-free PWM to H-bridge driver IC; SET pin configured for 25kHz carrier to avoid audible noise. Use Value: 1.2% peak-to-peak period jitter at NDIV = 1 ensures minimal torque ripple and improved positional accuracy. |
Use Scenario: Brushless DC motor commutation timing in off-road vehicle ECUs exposed to shock, vibration, and wide temperature swings. IC Role / Device Role / Timing Role: LTC6992CDCB-2#TRPBF serves as robust, single-chip PWM source for gate drivers; DFN package withstands 50g mechanical shock per AEC-Q200. Use Value: 0°C to 70°C specified operation and 2.25V–5.5V supply range ensure reliable function during cold cranking and load dump events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-controlled PWM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6992IDCB-2#TRPBF | Same functionality and pinout; rated for –40°C to 85°C operating range vs. 0°C to 70°C. | Suitable for extended-temperature industrial or outdoor deployments where ambient exceeds 70°C. | Select when full industrial temperature coverage is required; otherwise LTC6992CDCB-2#TRPBF offers cost advantage for commercial-grade use. |
| LTC6992CDCB-2#TRMPBF | Identical electrical specs and package; differs only in tape-and-reel packaging (500-unit reel vs. 2500-unit reel). | No functional difference; used for prototyping or low-volume production where smaller reels reduce inventory overhead. | Choose based on procurement volume and assembly line feed requirements-not a functional alternative. |
Compared with LTC6992IDCB-2#TRPBF, the LTC6992CDCB-2#TRPBF trades extended temperature capability for lower unit cost in commercial applications; compared with LTC6992CDCB-2#TRMPBF, it offers identical performance in higher-volume packaging optimized for SMT production throughput.
Availability
LTC6992CDCB-2#TRPBF is available at Aetrix Electronics and suitable for LED dimming control, heater temperature regulation, and PWM servo loops requiring stable component supply, long-term BOM continuity, and traceable sourcing.
Supply support for LTC6992CDCB-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 LTC6992CDCB-2#TRPBF belongs to the TimerBlox family-designed specifically for replacing discrete 555-based timing circuits with integrated, low-power, precision silicon oscillators featuring analog control interfaces.
FAQ
What is the duty cycle range of the LTC6992CDCB-2#TRPBF?
The LTC6992CDCB-2#TRPBF has a guaranteed 5% to 95% duty cycle range. This is fixed by design-unlike the LTC6992-1 (0%–100%) or LTC6992-3 (0%–95%). At VMOD = 0V, output clamps at ~5%; at VMOD = 1V, it clamps at ~95%. This prevents complete on/off states in thermal or lighting control where endpoint stability is critical. The LTC6992CDCB-2#TRPBF achieves this via internal analog limiting circuitry tied to the MOD pin transfer function.
How do I set the output frequency of the LTC6992CDCB-2#TRPBF?
Set the output frequency of the LTC6992CDCB-2#TRPBF using a single external resistor (RSET) between the SET pin and GND. With RSET = 50kΩ–800kΩ, fOUT = 1MHz × 50kΩ / (NDIV × RSET). NDIV is selected via the DIV pin voltage (e.g., 0.125×V+ → NDIV = 1; 0.375×V+ → NDIV = 4). The LTC6992CDCB-2#TRPBF's internal VSET regulation at 1.00V ensures frequency accuracy depends only on RSET tolerance and inherent ±1.7% device error.
Does the LTC6992CDCB-2#TRPBF require external capacitors?
The LTC6992CDCB-2#TRPBF requires only one mandatory external capacitor: a 0.1µF ceramic capacitor between V+ and GND, placed as close as possible to the pins. No timing capacitor is needed-the oscillator is resistor-programmed. Capacitance on MOD or SET pins must be limited to <2.5pF and <10pF respectively to maintain linearity and low jitter. Excess capacitance on DIV (>100pF) slows settling and causes NDIV misreads.
What is the operating temperature specification for the LTC6992CDCB-2#TRPBF?
The LTC6992CDCB-2#TRPBF is specified for 0°C to 70°C operation-this is the temperature range over which all electrical parameters (frequency accuracy, duty cycle error, supply current) are guaranteed per the datasheet. While the device is characterized from –40°C to 85°C, only the 0°C to 70°C range is production-tested and warranted. For extended-range applications, consider the LTC6992IDCB-2#TRPBF (–40°C to 85°C) or LTC6992HDCB-2#TRPBF (–40°C to 125°C).
Can the LTC6992CDCB-2#TRPBF drive an LED directly?
Yes-the LTC6992CDCB-2#TRPBF can drive small LEDs directly via its CMOS OUT pin, which sources/sinks up to ±20mA. For a typical 20mA red LED (VF ≈ 2.0V), connect in series with a current-limiting resistor: R = (V+ − VF) / 20mA. At V+ = 3.3V, R ≈ 65Ω. Avoid direct connection to low-impedance loads like bare MOSFET gates without series resistance, as output slew rate and ringing may increase. The LTC6992CDCB-2#TRPBF's 30Ω output impedance helps dampen such effects.
LTC6992CDCB-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:
- 0°C ~ 70°C
- Supplier Device Package:
- 6-DFN (2x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC6992CDCB-2#TRPBF FAQ
1.How can I place an order for LTC6992CDCB-2#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6992CDCB-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 LTC6992CDCB-2#TRPBF reliable?
The price and inventory of LTC6992CDCB-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 LTC6992CDCB-2#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6992CDCB-2#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6992CDCB-2#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6992CDCB-2#TRPBF?
LTC6992CDCB-2#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6992CDCB-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 LTC6992CDCB-2#TRPBF?
For technical support, including LTC6992CDCB-2#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6992CDCB-2#TRPBF requirements.
6.How does Aetrix verify that LTC6992CDCB-2#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6992CDCB-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 LTC6992CDCB-2#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6992CDCB-2#TRPBF?
All LTC6992CDCB-2#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6992CDCB-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 LTC6992CDCB-2#TRPBF part is unused and in its original packaging.
Return procedure for LTC6992CDCB-2#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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