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Analog Devices Inc. LTC6992IDCB-4#TRMPBF
- Part No.:
- LTC6992IDCB-4#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- 6-WFDFN Exposed Pad
- Datasheet:
-
LTC6992IDCB-4#TRMPBF.pdf
- Description:
- IC OSC SILICON PROG 6-DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,698
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Product details
Overview
LTC6992IDCB-4#TRMPBF 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 100% programmable duty cycle range, 3.81Hz–1MHz output frequency (set via RSET and NDIV = 1–16384), ±1.7% max frequency error, and operates from 2.25V–5.5V supply. It is used in LED dimming, heater control, and servo loops where stable, low-drift PWM generation is required.
For engineers reviewing the LTC6992IDCB-4#TRMPBF datasheet, LTC6992IDCB-4#TRMPBF pinout, LTC6992IDCB-4#TRMPBF application, or LTC6992IDCB-4#TRMPBF equivalent, this page provides verified technical context, package-specific pin functions, real-world application cards, and validated alternative parts with documented functional differences - all grounded in Analog Devices' Rev. D datasheet and official ordering information.
Technical Context
The LTC6992IDCB-4#TRMPBF implements a master oscillator (fMASTER = 1 MHz × 50 kΩ / RSET) followed by an 8-step programmable divider (NDIV = 1, 4, 16, ..., 16384), enabling precise frequency scaling. Its analog MOD pin accepts 0.1×VSET to 0.9×VSET (≈100 mV–900 mV) to linearly set duty cycle within the 5%–100% range defined for the -4 variant.
Internal regulation holds VSET at 1.00 V ±30 mV, decoupling frequency accuracy from supply variation; frequency drift is ±0.005 %/°C over temperature and ≤0.65 %/V over supply. The device features CMOS output capable of sourcing/sinking 20 mA, with 500 µs startup time and 115 µA typical supply current at 100 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency Range | 3.81 Hz to 1 MHz - supports ultra-low-power timing and high-speed PWM control without external clock sources. |
| Duty Cycle Range | 5% to 100% - enables full-range dimming or actuation while preventing output stall (unlike 0% variants). |
| Frequency Accuracy | ±1.7% max - ensures predictable timing across voltage and temperature for closed-loop systems. |
| Supply Voltage | 2.25 V to 5.5 V - compatible with Li-ion, 3.3 V, and 5 V rails without level-shifting. |
| MOD Input Range | 0.1×VSET to 0.9×VSET (≈100–900 mV) - matches standard DAC outputs and sensor signal levels. |
| Output Drive | ±20 mA CMOS - directly drives LEDs, small MOSFET gates, or optocouplers without buffer stages. |
| Operating Temp | –40°C to +85°C - qualified for industrial and automotive cabin environments (I-grade). |
Pinout & Package
Package: 6-lead (2 mm × 3 mm) plastic DFN (DCB), 1 mm profile, exposed pad (GND). RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | 2.25 V–5.5 V rail; must be bypassed with 0.1 µF capacitor to GND for stable operation. |
| DIV | Programmable divider & polarity select | Resistor-divider input setting NDIV (1–16384) and output polarity (POL bit); ≤100 pF capacitance required. |
| SET | Frequency-setting node | Internally regulated to 1.00 V; connects to RSET (50 kΩ–800 kΩ) to program master oscillator frequency. |
| MOD | Analog PWM control input | 0.1×VSET–0.9×VSET sets duty cycle; clamps at 5% min / 100% max per -4 variant specification. |
| GND | Ground reference | Low-inductance connection point for power and signal return; ties to exposed pad. |
| OUT | PWM output driver | CMOS rail-to-rail output; sources/sinks up to 20 mA; rise/fall times <2.7 ns (V+ = 2.25 V). |
Key Features
| Feature | Design Value |
|---|---|
| Voltage-controlled PWM | Linear 0.1×VSET–0.9×VSET modulation enables direct interface with DACs, op-amps, or sensors - no microcontroller required. |
| Eight divider ratios | NDIV = 1, 4, 16, 64, 256, 1024, 4096, 16384 selected via DIV pin voltage - simplifies frequency scaling without firmware changes. |
| 5%–100% duty cycle limit | Guaranteed non-zero output (no 0% stall) and full-on capability - ideal for thermal control and LED drivers requiring minimum bias. |
| Low quiescent current | 105–170 µA (V+ = 2.25–5.5 V, RSET = 800 kΩ) - extends battery life in portable equipment and IoT nodes. |
| Industrial temperature grade | –40°C to +85°C operation with guaranteed performance - suitable for factory automation and outdoor electronics. |
Applications
| LED Dimming Control | Heater Control |
|---|---|
|
Use Scenario: Precise brightness adjustment of high-brightness LEDs in architectural lighting or automotive interior modules. IC Role / Device Role / Timing Role: Generates stable, low-jitter PWM signal with 5%–100% duty cycle to drive LED current sinks or MOSFETs. Use Value: Eliminates flicker and color shift via ±3.7% max duty cycle error and <0.15% RMS jitter at NDIV = 16 - critical for human-centric lighting. |
Use Scenario: Closed-loop thermal regulation of resistive heating elements in industrial ovens or medical devices. IC Role / Device Role / Timing Role: Converts analog temperature error signal (e.g., from op-amp comparator) into proportional PWM drive. Use Value: Enables smooth, noise-immune power delivery with 500 µs startup and ±0.005 %/°C frequency stability - avoids thermal overshoot. |
| PWM Servo Loops | High-Vibration Environments |
|
Use Scenario: Position control of RC-style servos or piezoelectric actuators in robotics and test equipment. IC Role / Device Role / Timing Role: Provides repeatable 1–2 ms pulse width (via NDIV and RSET) synchronized to external control voltage on MOD pin. Use Value: Delivers <1.2% peak-to-peak period jitter at NDIV = 1 - ensures sub-millisecond timing accuracy for position feedback stability. |
Use Scenario: Power switching in aerospace avionics or transportation systems subject to shock and wide temperature swings. IC Role / Device Role / Timing Role: Generates robust PWM timing immune to supply ripple and EMI due to internal VSET regulation and low sensitivity to V+ drift. Use Value: Maintains ±1.7% frequency accuracy across –40°C to +85°C and 2.25–5.5 V supply - reduces need for recalibration in field-deployed units. |
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#TRMPBF | 5%–95% duty cycle range; identical pinout, frequency specs, and package. | Cannot achieve 100% duty cycle - unsuitable for applications requiring full-on conduction (e.g., heater hold mode). | Select only if strict 5%–95% clamping is preferred to avoid accidental saturation in feedback loops. |
| LTC6992IDCB-3#TRMPBF | 0%–95% duty cycle range; same RSET/DIV/MOD interface and electrical specs. | Supports 0% (off) state but caps at 95% - appropriate for systems needing shutdown capability but not full-on drive. | Choose when system safety requires guaranteed OFF state, and 100% duty cycle is unnecessary. |
Compared with LTC6992IDCB-4#TRMPBF, the -2 variant trades 100% duty cycle for tighter 5%–95% symmetry, while the -3 variant adds 0% capability but sacrifices the upper 5% - making the -4 uniquely suited for applications demanding both minimum bias and full conduction without external logic.
Availability
LTC6992IDCB-4#TRMPBF is available at Aetrix Electronics and suitable for LED dimming control, heater control, and PWM servo loops requiring stable component supply, consistent parametric performance, and long-term industrial-grade availability.
Supply support for LTC6992IDCB-4#TRMPBF 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-4#TRMPBF belongs to the TimerBlox family - silicon timing ICs engineered for simplicity, precision, and reliability in analog-controlled timing applications where crystal oscillators or microcontrollers are impractical.
FAQ
What is the duty cycle range of the LTC6992IDCB-4#TRMPBF?
The LTC6992IDCB-4#TRMPBF has a guaranteed duty cycle range of 5% to 100%, meaning it can produce output pulses from minimum 5% ON-time up to continuous 100% conduction. This distinguishes it from other variants like the -2 (5%–95%) or -1 (0%–100%), and makes LTC6992IDCB-4#TRMPBF ideal for applications requiring both safe minimum bias and full-power operation without external circuitry.
How is the output frequency set on the LTC6992IDCB-4#TRMPBF?
The output frequency of LTC6992IDCB-4#TRMPBF is set using two elements: a resistor RSET (50 kΩ to 800 kΩ) connected between the SET pin and GND to define the master oscillator frequency, and the DIV pin voltage which selects one of eight divider ratios (NDIV = 1, 4, 16, ..., 16384). The final fOUT = 1 MHz × 50 kΩ / (NDIV × RSET), with ±1.7% max error over temperature and supply.
What package type does the LTC6992IDCB-4#TRMPBF use?
The LTC6992IDCB-4#TRMPBF uses a 6-lead, 2 mm × 3 mm plastic DFN package (DCB), with 1 mm profile and exposed thermal pad (pin 7, internally connected to GND). This compact, surface-mount package supports high-density PCB layouts and offers excellent thermal performance for industrial ambient conditions.
Does the LTC6992IDCB-4#TRMPBF require external components to operate?
Yes - LTC6992IDCB-4#TRMPBF requires at minimum: (1) a 0.1 µF bypass capacitor between V+ and GND, (2) RSET (50 kΩ–800 kΩ) from SET to GND to set frequency, and (3) a resistor divider on the DIV pin to select NDIV. The MOD pin accepts a clean analog voltage (100–900 mV); no additional active components are needed for basic PWM generation.
Is the LTC6992IDCB-4#TRMPBF suitable for automotive applications?
The LTC6992IDCB-4#TRMPBF is rated for –40°C to +85°C operation (I-grade) and is not AEC-Q100 qualified. For automotive under-hood or safety-critical use, Analog Devices offers automotive-grade variants (e.g., LTC6992IS6-4#WTRMPBF) with controlled manufacturing and qualification reports - LTC6992IDCB-4#TRMPBF itself is intended for industrial and commercial systems.
LTC6992IDCB-4#TRMPBF 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#TRMPBF FAQ
1.How can I place an order for LTC6992IDCB-4#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6992IDCB-4#TRMPBF 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#TRMPBF reliable?
The price and inventory of LTC6992IDCB-4#TRMPBF 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#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC6992IDCB-4#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6992IDCB-4#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6992IDCB-4#TRMPBF?
LTC6992IDCB-4#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6992IDCB-4#TRMPBF 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#TRMPBF?
For technical support, including LTC6992IDCB-4#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6992IDCB-4#TRMPBF requirements.
6.How does Aetrix verify that LTC6992IDCB-4#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC6992IDCB-4#TRMPBF 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#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC6992IDCB-4#TRMPBF?
All LTC6992IDCB-4#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6992IDCB-4#TRMPBF, 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#TRMPBF part is unused and in its original packaging.
Return procedure for LTC6992IDCB-4#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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