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Analog Devices Inc. LTC6992IDCB-4#TRPBF
- Part No.:
- LTC6992IDCB-4#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- 6-WFDFN Exposed Pad
- Datasheet:
-
LTC6992IDCB-4#TRPBF.pdf
- Description:
- IC OSC SILICON PROG 6-DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,451
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Product details
Overview
LTC6992IDCB-4#TRPBF from Analog Devices is a voltage-controlled pulse width modulator (PWM) IC in the TimerBlox family, designed for precision analog duty-cycle control in timing-critical systems. It delivers 5% to 100% programmable duty cycle range, 3.81Hz–1MHz output frequency (set via RSET and NDIV divider), ±1.7% max frequency error, and operates from 2.25V–5.5V supply. It is used in LED dimming where stable low-duty-cycle regulation prevents flicker under varying input conditions.
For engineers reviewing the LTC6992IDCB-4#TRPBF datasheet, LTC6992IDCB-4#TRPBF pinout, LTC6992IDCB-4#TRPBF application, or LTC6992IDCB-4#TRPBF equivalent, this page provides verified package mapping (6-lead DFN, 2mm × 3mm), confirmed MOD/SET/DIV pin functions, duty-cycle clamping behavior at 5%/100%, and validated automotive-grade temperature support (–40°C to +85°C).
Technical Context
The LTC6992IDCB-4#TRPBF implements a master oscillator with fixed 1MHz reference scaling, where frequency is set by ISET = VSET/RSET (VSET regulated to 1.00V ±30mV). Its internal 4-bit A/D converter reads DIV pin voltage to select NDIV values (1, 4, 16, ..., 16384) and polarity mode (POL bit), enabling precise frequency division without external logic.
Duty cycle is linearly controlled by VMOD between 0.1·VSET and 0.9·VSET, with hard clamps at 5% min / 100% max per its -4 variant designation. The CMOS output driver sources/sinks 20mA with <500µs startup time and supports direct LED or MOSFET gate drive without buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency Range | 3.81Hz to 1MHz - covers ultra-low-power sleep timers up to high-speed PWM for motor commutation. |
| Duty Cycle Range | 5% to 100% - enables full-on operation and avoids zero-output dead zones in heater or LED control. |
| Frequency Accuracy | ±1.7% max over temp - ensures consistent timing without calibration in industrial ambient shifts. |
| Supply Voltage | 2.25V to 5.5V - compatible with single-cell Li-ion, 3.3V logic, and 5V legacy systems. |
| Quiescent Current | 105–450µA - scales with RSET and NDIV; enables battery operation >10 years in low-duty-cycle monitoring. |
| Operating Temp | –40°C to +85°C - qualified for industrial and automotive cabin applications without derating. |
| Output Drive | ±20mA CMOS - directly drives logic inputs, small LEDs, or MOSFET gates without external buffers. |
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 |
|---|---|---|
| OUT (Pin 6) | Digital PWM output | CMOS rail-to-rail output; 20mA drive capability; connects directly to LED anode or MOSFET gate. |
| GND (Pin 2) | Analog/digital ground reference | Low-inductance return path; exposed pad must be soldered for thermal and electrical performance. |
| MOD (Pin 1) | Analog duty-cycle control input | 0.1·VSET to 0.9·VSET linear range (≈100mV–900mV); clamps at 5%/100% for LTC6992-4. |
| V+ (Pin 5) | Positive supply | 2.25V–5.5V input; requires 0.1µF ceramic bypass capacitor placed adjacent to pin. |
| DIV (Pin 4) | Divider ratio and polarity selection | Voltage-programmed 4-bit code (NDIV = 1, 4, 16…16384); MSB sets output polarity inversion. |
| SET (Pin 3) | Oscillator frequency programming | Regulated 1.00V node; RSET from SET to GND sets ISET = 1V/RSET; 50kΩ–800kΩ range. |
Key Features
| Feature | Design Value |
|---|---|
| Analog voltage-controlled PWM | 0.1·VSET–0.9·VSET input yields linear 5%–100% duty cycle-no microcontroller or DAC required. |
| Programmable frequency divider | 8 NDIV settings (1–16384) selected by resistor divider on DIV pin-enables wide frequency coverage with one RSET. |
| Stable 1V internal reference | VSET held at 1.00V ±30mV-eliminates VSET drift impact on frequency when using RSET. |
| Fast startup & low jitter | 500µs typical startup; <0.4% period jitter at NDIV=4-supports responsive closed-loop control. |
| Automotive-ready operation | –40°C to +85°C guaranteed performance; AEC-Q100 qualified variants available-suitable for body electronics. |
Applications
| LED Dimming Control | Heater Power Regulation |
|---|---|
|
Use Scenario: Precise brightness control of automotive interior LEDs across battery voltage swings (9V–16V). IC Role / Device Role / Timing Role: LTC6992IDCB-4#TRPBF generates stable 10kHz–100kHz PWM with 5%–100% duty cycle, directly driving LED strings via MOSFET. Use Value: Eliminates visible flicker at low brightness due to hard 5% minimum duty cycle and <±3.7% PWM accuracy. |
Use Scenario: Closed-loop thermal management in industrial ovens using resistive heating elements. IC Role / Device Role / Timing Role: LTC6992IDCB-4#TRPBF accepts analog signal from temperature controller and outputs variable-duty PWM to TRIAC driver. Use Value: Enables smooth power ramp-up from 5% to full heat without overshoot, leveraging ±1.7% frequency stability over temperature. |
| PWM Servo Loops | High-Vibration Motor Control |
|
Use Scenario: Position control of RC-style servo actuators in robotics with analog command interface. IC Role / Device Role / Timing Role: LTC6992IDCB-4#TRPBF converts 0–1V control voltage into standard 1–2ms pulse width (50Hz frame) with precise edge placement. Use Value: Achieves sub-microsecond timing resolution via low-jitter output and 500µs startup-critical for fast-response servos. |
Use Scenario: Fan speed control in aerospace avionics subject to shock (>50g) and wide thermal cycling. IC Role / Device Role / Timing Role: LTC6992IDCB-4#TRPBF provides robust PWM generation immune to supply noise, with 2.25V–5.5V operation and –40°C to +85°C rating. Use Value: Maintains consistent 20kHz switching frequency despite vibration-induced board flex, preventing audible whine. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-controlled PWM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TLC555CP | 555 timer IC requiring external R/C network; no integrated VSET regulation or NDIV divider; ±2% frequency accuracy. | Lacks analog voltage-controlled duty cycle-requires op-amp circuitry to achieve PWM; unsuitable for compact designs. | Choose only if cost is primary constraint and design can accommodate external components for duty-cycle control. |
| Microchip MIC5014YM5-TR | Fixed-frequency PWM driver with analog current-mode control; no programmable NDIV; 100kHz max frequency; ±5% duty cycle error. | Designed for MOSFET gate driving only-not a standalone oscillator; requires external clock source for variable frequency. | Select when driving high-side N-channel MOSFETs directly and system clock is already available. |
Compared with TLC555CP and MIC5014YM5-TR, the LTC6992IDCB-4#TRPBF uniquely integrates precision voltage-controlled PWM, programmable frequency division, and automotive-grade reliability in a 2mm × 3mm DFN-reducing BOM count by ≥4 passive components and eliminating layout-sensitive timing networks.
Availability
LTC6992IDCB-4#TRPBF is available at Aetrix Electronics and suitable for LED dimming control, heater power regulation, PWM servo loops, and high-vibration motor control requiring stable component supply across industrial and automotive production cycles.
Supply support for LTC6992IDCB-4#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 since 1965.
The TimerBlox family-including LTC6992IDCB-4#TRPBF-is engineered for plug-and-play timing solutions that replace discrete RC oscillators and microcontroller-based PWM generators in space- and power-constrained applications.
FAQ
What is the minimum duty cycle supported by the LTC6992IDCB-4#TRPBF?
The LTC6992IDCB-4#TRPBF guarantees a minimum duty cycle of 5%, enforced by internal clamping circuitry. This prevents unintended zero-output states during low-modulation conditions-critical for maintaining bias in LED drivers or heater elements. Unlike the LTC6992-1 variant, it does not support 0% duty cycle or oscillator halt.
How is the output frequency programmed on the LTC6992IDCB-4#TRPBF?
The LTC6992IDCB-4#TRPBF output frequency is set by two independent elements: (1) RSET resistor from SET pin to GND determines master oscillator frequency (fMASTER = 1MHz × 50kΩ / RSET), and (2) DIV pin voltage selects NDIV divider ratio (1, 4, 16…16384). Final fOUT = fMASTER / NDIV, enabling precise tuning across eight decades.
Does the LTC6992IDCB-4#TRPBF require external components for basic operation?
Yes-the LTC6992IDCB-4#TRPBF requires three external components for full functionality: (1) RSET (50kΩ–800kΩ) from SET to GND, (2) resistor divider on DIV pin to select NDIV and polarity, and (3) 0.1µF ceramic capacitor from V+ to GND. No external timing capacitors or op-amps are needed for PWM generation.
What is the operating temperature range certified for the LTC6992IDCB-4#TRPBF?
The LTC6992IDCB-4#TRPBF is specified for operation from –40°C to +85°C (Industrial grade, "I" suffix). This range is fully tested and guaranteed per datasheet Electrical Characteristics tables, including frequency accuracy, duty cycle error, and supply current-making it suitable for under-hood automotive and factory-floor industrial use.
Can the LTC6992IDCB-4#TRPBF drive MOSFET gates directly?
Yes-the LTC6992IDCB-4#TRPBF CMOS output delivers ±20mA drive strength with rail-to-rail swing (GND to V+), enabling direct connection to logic-level N-channel or P-channel MOSFET gates. For high-side switching, ensure V+ ≥ gate threshold + margin; for low-side, verify sink current meets MOSFET Qg requirements at target PWM frequency.
LTC6992IDCB-4#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-4#TRPBF FAQ
1.How can I place an order for LTC6992IDCB-4#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6992IDCB-4#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-4#TRPBF reliable?
The price and inventory of LTC6992IDCB-4#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-4#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6992IDCB-4#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6992IDCB-4#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6992IDCB-4#TRPBF?
LTC6992IDCB-4#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6992IDCB-4#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-4#TRPBF?
For technical support, including LTC6992IDCB-4#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6992IDCB-4#TRPBF requirements.
6.How does Aetrix verify that LTC6992IDCB-4#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6992IDCB-4#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-4#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6992IDCB-4#TRPBF?
All LTC6992IDCB-4#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6992IDCB-4#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-4#TRPBF part is unused and in its original packaging.
Return procedure for LTC6992IDCB-4#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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