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Analog Devices Inc. LTC6992CS6-4#TRPBF
- Part No.:
- LTC6992CS6-4#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LTC6992CS6-4#TRPBF.pdf
- Description:
- IC OSC SILICON PROG TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,512
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Product details
Overview
LTC6992CS6-4#TRPBF from Analog Devices is a voltage-controlled pulse width modulator (PWM) IC in the TimerBlox family, configured for 5% to 100% duty cycle range. It operates from 2.25V to 5.5V, delivers up to 20mA CMOS output drive, and achieves frequency accuracy of ±1.7% over temperature with programmable division ratios up to 16384 - used in LED dimming and heater control circuits requiring analog voltage-based PWM tuning.
For engineers reviewing the LTC6992CS6-4#TRPBF datasheet, LTC6992CS6-4#TRPBF pinout, LTC6992CS6-4#TRPBF application, or LTC6992CS6-4#TRPBF equivalent, this page provides verified pin functions, duty-cycle clamping behavior, supply-current vs. frequency curves, and validated automotive-grade alternatives for thermal-stable PWM generation in battery-powered and industrial systems.
Technical Context
The LTC6992CS6-4#TRPBF integrates a master oscillator (1MHz max) whose frequency is set by RSET current into the SET pin, regulated to 1.00V ±30mV. Its internal 4-bit A/D converter reads DIV pin voltage to select NDIV = 1, 4, 16, ..., 16384 and polarity inversion mode (POL).
Duty cycle is linearly controlled by MOD pin voltage (0.1•VSET to 0.9•VSET), with hard clamps at 5% min / 100% max per its -4 variant designation. Output settling occurs within 8×tMASTER after MOD step changes, and startup completes in ≤500µs.
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 100% - enables full-range analog control while preventing output stall; 5% minimum avoids unintended zero-output states in heater/LED drivers. |
| Frequency Accuracy | ±1.7% max over –40°C to 85°C - eliminates need for calibration in industrial temperature zones when using 1% RSET. |
| Supply Current | 105–450µA - scales with NDIV and V+; 120µA typical at 5.5V/NDIV≥16 enables multi-year battery life in portable sensors. |
| Output Drive | ±20mA CMOS - directly drives logic inputs, small MOSFET gates, or LEDs with series resistor; no external buffer required. |
| Operating Temp | 0°C to 70°C (C-grade) - validated for commercial ambient environments including consumer electronics and non-automotive industrial controls. |
| Package | SOT-23-6 (TSOT-23) - 2.9mm × 1.6mm footprint compatible with high-density PCB layouts and automated assembly. |
Pinout & Package
Package: 6-lead Plastic TSOT-23 (S6), 2.9mm × 1.6mm × 1.0mm profile, exposed pad optional for thermal relief.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (V+) | Positive Supply Input | 2.25V–5.5V rail; requires local 0.1µF bypass to GND; powers all internal blocks including oscillator and output driver. |
| 2 (GND) | Ground Reference | Low-inductance return path for supply and signal currents; must connect to solid ground plane for jitter control. |
| 3 (SET) | Frequency-Setting Input | Regulated to 1.00V; ISET = VSET/RSET sets master oscillator frequency; RSET = 50kΩ–800kΩ yields fOUT = 1MHz/(NDIV·RSET). |
| 4 (MOD) | PWM Duty Control Input | Analog input (0.1•VSET to 0.9•VSET); linearly maps to 5–100% duty cycle; clamps beyond range to prevent undefined output states. |
| 5 (DIV) | Divider Ratio & Polarity Select | Voltage divider input read by internal 4-bit ADC; selects NDIV (1–16384) and POL bit to invert output polarity. |
| 6 (OUT) | CMOS PWM Output | Full-rail swing (GND to V+); 30Ω typical output impedance; sources/sinks 20mA; drives capacitive loads <5pF without added delay. |
Key Features
| Feature | Design Value |
|---|---|
| Voltage-Controlled PWM | 0V–1V analog input on MOD pin directly sets duty cycle with <3.7% error - replaces microcontroller PWM + DAC in simple closed-loop systems. |
| Programmable Frequency Division | Eight NDIV options (1, 4, 16, ..., 16384) selected via resistor divider on DIV pin - enables single RSET to cover 16-decade frequency range without layout change. |
| Stable 1V SET Reference | VSET = 1.00V ±30mV with ±75µV/°C drift - decouples frequency setting from supply variation when using RSET; enables accurate timing across V+ range. |
| Low-Power Operation | 105µA typical at 2.25V/NDIV≥16 - supports always-on sensor nodes and energy-harvesting applications where µA-level quiescent current is critical. |
| Fast Startup & Settling | ≤500µs power-on reset and ≤8×tMASTER duty-cycle settling - meets real-time response requirements in motor control and adaptive lighting. |
Applications
| LED Dimming Control | Heater Temperature Regulation |
|---|---|
|
Use Scenario: Adjustable brightness control for architectural LED strips powered from 3.3V or 5V rails. IC Role / Device Role / Timing Role: Generates precise, analog-voltage-tuned PWM signal driving MOSFET gate; replaces MCU-based dimming firmware. Use Value: Eliminates software overhead and flash memory usage; achieves smooth 5–100% dimming with <3.7% duty error and no visible flicker at 1kHz. |
Use Scenario: Closed-loop thermal management in industrial ovens using thermistor feedback. IC Role / Device Role / Timing Role: Converts amplified thermistor voltage to PWM duty cycle controlling TRIAC or MOSFET heater drive. Use Value: Enables analog PID implementation without ADC or processor; maintains ±1°C stability using 5%–100% clamp to avoid heater overshoot. |
| PWM Servo Loops | Portable Equipment Power Management |
|
Use Scenario: Position control of RC-style servos in robotics or UAV gimbal systems. IC Role / Device Role / Timing Role: Provides stable 50Hz PWM with adjustable pulse width (0.5ms–2.5ms) derived from potentiometer voltage. Use Value: Delivers jitter-free timing (<0.4% P-P at NDIV=4) and 20mA drive - eliminates servo jitter and eliminates need for external level-shifting. |
Use Scenario: Battery-powered handheld test equipment requiring low-quiescent-power backlight dimming. IC Role / Device Role / Timing Role: Generates 200Hz–1kHz PWM from coin-cell voltage (2.25V–3.3V) to drive OLED or LCD backlights. Use Value: Draws only 120µA at 2.25V/NDIV=16 - extends battery life by >30% versus discrete timer ICs while maintaining full 5–100% dimming range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-controlled PWM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6992IS6-4#TRPBF | Same functionality and pinout; rated for –40°C to 85°C industrial temp range instead of 0°C to 70°C. | Required for outdoor or uncontrolled-ambient deployments; same RSET/MOD interface and accuracy specs. | Select when operating outside commercial temperature envelope; no design changes needed beyond qualification testing. |
| LTC6992HS6-4#TRPBF | Same architecture; qualified for –40°C to 125°C extended temperature operation with higher thermal resistance (θJA = 192°C/W). | Supports under-hood automotive or high-temp industrial enclosures; retains 5–100% duty clamping and 1.7% frequency accuracy. | Choose for AEC-Q100-compliant designs; verify PCB thermal relief due to higher θJA; identical schematic integration. |
Compared with LTC6992CS6-4#TRPBF, the IS6-4 and HS6-4 variants maintain identical electrical performance and pin compatibility but extend operational reliability into wider temperature ranges - enabling drop-in upgrades for harsh-environment deployments without modifying RSET, MOD, or DIV resistor networks.
Availability
LTC6992CS6-4#TRPBF is available at Aetrix Electronics and suitable for LED dimming control, heater temperature regulation, and PWM servo loops requiring stable component supply across commercial temperature grades.
Supply support for LTC6992CS6-4#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 precision instrumentation, industrial automation, and communications markets.
The LTC6992CS6-4#TRPBF belongs to the TimerBlox family - silicon timing devices designed for analog-programmable, low-jitter, low-power timing functions without microcontroller dependency.
FAQ
What is the minimum and maximum duty cycle supported by the LTC6992CS6-4#TRPBF?
The LTC6992CS6-4#TRPBF is the -4 variant of the TimerBlox family and supports a duty cycle range of 5% to 100%. This means the output will never fall below 5% or exceed 100%, providing defined clamping behavior ideal for heater and LED drivers where zero-output or continuous-on states must be avoided. The clamping is hardware-enforced and does not require external circuitry.
How do I set the output frequency of the LTC6992CS6-4#TRPBF?
The output frequency of the LTC6992CS6-4#TRPBF is set using two elements: an external resistor RSET connected between the SET pin and GND, and the voltage applied to the DIV pin. With RSET = 50kΩ–800kΩ and DIVCODE selecting NDIV = 1, 4, 16, ..., 16384, fOUT = 1MHz / (NDIV × RSET). For example, RSET = 200kΩ and DIVCODE = 4 (NDIV = 16) yields fOUT = 312.5Hz. No external capacitor is required.
Does the LTC6992CS6-4#TRPBF require a microcontroller to operate?
No, the LTC6992CS6-4#TRPBF operates autonomously without firmware or digital control. It accepts analog voltage inputs on MOD (for duty cycle) and DIV (for frequency division), and uses RSET on the SET pin for frequency programming. This makes the LTC6992CS6-4#TRPBF ideal for replacing MCU-based PWM generation in cost- and size-constrained analog systems.
What is the supply current consumption of the LTC6992CS6-4#TRPBF at 100kHz output frequency?
At 100kHz output frequency, the LTC6992CS6-4#TRPBF draws approximately 115µA from a 2.25V supply and 350µA from a 5.5V supply, depending on NDIV and RSET configuration. These values are measured with RSET = 50kΩ and NDIV = 1 or 4, and reflect typical conditions per the datasheet's Electrical Characteristics table. Lower current is achieved at higher NDIV settings.
Can the LTC6992CS6-4#TRPBF drive an LED directly?
Yes - the LTC6992CS6-4#TRPBF features a CMOS output capable of sourcing and sinking up to 20mA, allowing direct connection to LEDs with a current-limiting series resistor. For example, with V+ = 3.3V and a red LED (VF ≈ 1.8V), a 75Ω resistor limits current to ~20mA. Avoid direct low-impedance loads without current limiting to prevent exceeding the 20mA absolute maximum rating.
LTC6992CS6-4#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- TimerBlox®
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- 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:
- TSOT-23-6
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC6992CS6-4#TRPBF FAQ
1.How can I place an order for LTC6992CS6-4#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6992CS6-4#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 LTC6992CS6-4#TRPBF reliable?
The price and inventory of LTC6992CS6-4#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6992CS6-4#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6992CS6-4#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6992CS6-4#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6992CS6-4#TRPBF?
LTC6992CS6-4#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6992CS6-4#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 LTC6992CS6-4#TRPBF?
For technical support, including LTC6992CS6-4#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6992CS6-4#TRPBF requirements.
6.How does Aetrix verify that LTC6992CS6-4#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6992CS6-4#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 LTC6992CS6-4#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6992CS6-4#TRPBF?
All LTC6992CS6-4#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6992CS6-4#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 LTC6992CS6-4#TRPBF part is unused and in its original packaging.
Return procedure for LTC6992CS6-4#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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