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Analog Devices Inc. LTC6992IDCB-3#TRPBF
- Part No.:
- LTC6992IDCB-3#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- 6-WFDFN Exposed Pad
- Datasheet:
-
LTC6992IDCB-3#TRPBF.pdf
- Description:
- IC OSC SILICON PROG 6-DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,158
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Product details
Overview
LTC6992IDCB-3#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 3.81Hz–1MHz output frequency with 0%–95% duty cycle range, ±1.7% max frequency error, and 2.25V–5.5V single-supply operation-enabling LED dimming, heater control, and servo loop applications where duty cycle clamping at 0% and 95% is required.
For engineers reviewing the LTC6992IDCB-3#TRPBF datasheet, LTC6992IDCB-3#TRPBF pinout, LTC6992IDCB-3#TRPBF application, or LTC6992IDCB-3#TRPBF equivalent, this device offers verified VCO-mode PWM generation with resistor-programmable frequency, temperature-stable 1V SET reference, and automotive-grade –40°C to +85°C operation in a compact DFN package.
Technical Context
The LTC6992IDCB-3#TRPBF integrates a master oscillator (1MHz max) whose frequency is set by ISET current sourced through RSET (50kΩ–800kΩ), with VSET regulated to 1.00V ±30mV. Its internal 4-bit A/D converter reads DIV pin voltage to select NDIV = 1, 4, 16, 64, 256, 1024, 4096, or 16384, enabling precise frequency division without external logic.
Duty cycle is linearly controlled by MOD pin voltage (0.1•VSET to 0.9•VSET), with hard clamps at 0% and 95% per its -3 variant specification. The CMOS output drives ±20mA with 30Ω typical source/sink resistance, and includes power-on reset, 500µs startup time, and long-term drift of 90ppm/√kHr.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency Range | 3.81Hz to 1MHz - supports ultra-low-power sleep timers and high-speed motor control signals |
| Duty Cycle Range | 0% to 95% - enables full-off state and near-full-on operation for thermal safety in heater/LED drivers |
| Frequency Accuracy | ±1.7% max over temp - ensures stable timing without calibration in industrial ambient conditions |
| Supply Voltage | 2.25V to 5.5V - compatible with Li-ion, 3.3V, and 5V systems without level-shifting |
| Supply 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 cabin environments (I-grade) |
| Output Drive | ±20mA CMOS - directly drives MOSFET gates or small LEDs without external buffers |
Pinout & Package
Package: 6-lead (2mm × 3mm) plastic DFN (DCB), 1mm profile, exposed pad (GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Power supply input | 2.25V–5.5V rail; requires local 0.1µF bypass to GND for noise immunity |
| DIV | Programmable divider & polarity control | 4-bit A/D input; resistor-divider sets NDIV (1–16384) and output polarity (POL bit) |
| SET | Frequency-setting reference node | Internally regulated to 1.00V; connects to RSET (50kΩ–800kΩ) to set master oscillator frequency |
| MOD | Analog PWM control input | 0.1•VSET to 0.9•VSET (≈100mV–900mV) linearly sets duty cycle; clamps at 0%/95% for LTC6992-3 |
| GND | Ground reference | Low-inductance connection point for all bypass caps and signal returns |
| OUT | CMOS PWM output | Rail-to-rail swing (GND to V+); 30Ω typical drive impedance; ±20mA sink/source capability |
Key Features
| Feature | Design Value |
|---|---|
| Voltage-controlled PWM | 0V–1V analog input (MOD) directly maps to 0%–95% duty cycle with <3.7% error, eliminating DAC/microcontroller dependency |
| Resistor-programmable frequency | Single RSET (50kΩ–800kΩ) sets fOUT across 6 decades; no external crystal or capacitor needed |
| Automotive-grade reliability | AEC-Q100 qualified (I-grade), –40°C to +85°C operation, and 90ppm/√kHr long-term drift support mission-critical systems |
| Low-power operation | 105µA min supply current at 2.25V/800kΩ/NDIV≥16 enables >10-year battery life in IoT sensor nodes |
| Robust output stage | ±20mA CMOS driver with 30Ω on-resistance allows direct interface to gate drivers, LEDs, or optocouplers |
Applications
| LED Dimming Control | Heater Temperature Regulation |
|---|---|
|
Use Scenario: Adjustable brightness control for architectural lighting using constant-current LED drivers. IC Role / Device Role / Timing Role: LTC6992IDCB-3#TRPBF generates precise 100Hz–20kHz PWM with 0%–95% duty cycle to modulate LED current without visible flicker. Use Value: Eliminates microcontroller overhead and reduces BOM cost while maintaining thermal safety via 95% max duty clamp. |
Use Scenario: Closed-loop thermal management in automotive cabin heaters or industrial process ovens. IC Role / Device Role / Timing Role: LTC6992IDCB-3#TRPBF provides PWM output to TRIAC or MOSFET gate driver, scaled by thermistor feedback voltage. Use Value: 0% duty cycle enables full shutdown for fail-safe cooling; ±1.7% frequency accuracy ensures consistent thermal response time. |
| PWM Servo Loops | High-Vibration Motor Control |
|
Use Scenario: Position control of RC-style servos in robotics or drone gimbals using standard 50Hz PWM frames. IC Role / Device Role / Timing Role: LTC6992IDCB-3#TRPBF generates 50Hz carrier with 1–2ms pulse width (2%–4% duty) via MOD voltage scaling. Use Value: Resistor-based timing eliminates crystal aging drift; 500µs startup ensures fast system boot in responsive motion systems. |
Use Scenario: Brushless DC motor commutation timing in off-road vehicles or industrial pumps subject to shock and EMI. IC Role / Device Role / Timing Role: LTC6992IDCB-3#TRPBF serves as robust, low-jitter PWM generator immune to supply ripple due to internal VSET regulation. Use Value: 2.25V–5.5V operation tolerates brownouts; ±20mA output drives gate drivers directly without buffering in harsh EMI environments. |
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-1#TRPBF | 0%–100% duty cycle range; no upper clamp at 95% | Suitable where full-on operation (100%) is required, e.g., fan full-speed mode or emergency lighting | Select only if 100% duty cycle is mandatory; otherwise LTC6992IDCB-3#TRPBF provides safer thermal margin |
| LTC6992IDCB-2#TRPBF | 5%–95% duty cycle range; minimum clamp at 5%, not 0% | Preferred for applications requiring guaranteed minimum conduction, such as biasing analog circuits or preventing MOSFET shoot-through | Choose when 0% duty must be avoided; LTC6992IDCB-3#TRPBF is superior for true off-state control |
Compared with LTC6992IDCB-1#TRPBF and LTC6992IDCB-2#TRPBF, the LTC6992IDCB-3#TRPBF uniquely supports zero-output operation (0% duty) while retaining 95% maximum-making it optimal for energy-sensitive thermal and lighting systems where complete shutdown is critical.
Availability
LTC6992IDCB-3#TRPBF is available at Aetrix Electronics and suitable for LED dimming control, heater temperature regulation, and PWM servo loops requiring stable component supply across industrial and automotive temperature ranges.
Supply support for LTC6992IDCB-3#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-3#TRPBF belongs to the TimerBlox family-designed specifically for replacing discrete 555-based timing circuits with precision, low-power, and programmable silicon oscillators for analog-controlled PWM and frequency synthesis.
FAQ
What is the duty cycle range of the LTC6992IDCB-3#TRPBF?
The LTC6992IDCB-3#TRPBF has a confirmed duty cycle range of 0% to 95%. This means the output can be fully off (0% duty) and will clamp at 95% maximum-unlike the -1 variant (0–100%) or -2 variant (5–95%). This behavior is explicitly defined in the device's datasheet table and applies across its full operating temperature range of –40°C to +85°C.
How is the output frequency programmed on the LTC6992IDCB-3#TRPBF?
The LTC6992IDCB-3#TRPBF uses a single external resistor (RSET) connected between the SET pin and GND to program frequency. With RSET values from 50kΩ to 800kΩ, the output frequency spans 3.81Hz to 1MHz, calculated as fOUT = 1MHz × 50kΩ / (NDIV × RSET). NDIV is selected via the DIV pin voltage and ranges from 1 to 16384 in eight discrete steps.
Does the LTC6992IDCB-3#TRPBF require an external clock or crystal?
No, the LTC6992IDCB-3#TRPBF does not require an external clock or crystal. It contains a fully integrated silicon oscillator with internal regulation. Frequency is set solely by RSET and NDIV-no external timing components are needed, reducing PCB area, cost, and component count versus crystal-based or RC-timed alternatives.
What package type is used for the LTC6992IDCB-3#TRPBF?
The LTC6992IDCB-3#TRPBF is supplied in a 6-lead (2mm × 3mm) plastic DFN package (DCB), with 1mm height and an exposed thermal pad tied to GND. This package is RoHS-compliant, lead-free, and optimized for automated assembly and thermal performance in space-constrained designs.
Is the LTC6992IDCB-3#TRPBF qualified for automotive applications?
Yes-the LTC6992IDCB-3#TRPBF is AEC-Q100 qualified for automotive applications and rated for operation from –40°C to +85°C (I-grade). While not labeled with a "W" automotive suffix, its datasheet specifies AEC-Q100 qualification and lists automotive use cases including high-vibration environments and cabin electronics.
LTC6992IDCB-3#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-3#TRPBF FAQ
1.How can I place an order for LTC6992IDCB-3#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6992IDCB-3#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-3#TRPBF reliable?
The price and inventory of LTC6992IDCB-3#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-3#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6992IDCB-3#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6992IDCB-3#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6992IDCB-3#TRPBF?
LTC6992IDCB-3#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6992IDCB-3#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-3#TRPBF?
For technical support, including LTC6992IDCB-3#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6992IDCB-3#TRPBF requirements.
6.How does Aetrix verify that LTC6992IDCB-3#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6992IDCB-3#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-3#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6992IDCB-3#TRPBF?
All LTC6992IDCB-3#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6992IDCB-3#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-3#TRPBF part is unused and in its original packaging.
Return procedure for LTC6992IDCB-3#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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