Analog Devices Inc. LTC6992HS6-3#TRMPBF
- Part No.:
- LTC6992HS6-3#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LTC6992HS6-3#TRMPBF.pdf
- Description:
- IC OSC SILICON PROG TSOT23-6
- Quantity:
- Payment:

- Shipping:

Inventory:593
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Product details
Overview
LTC6992HS6-3#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 0% to 95% duty cycle range, programmable output frequency from 3.81 Hz to 1 MHz via RSET and DIV pin configuration, and operates from 2.25 V to 5.5 V supply. Used in LED dimming, heater control, and servo loops where stable, low-drift PWM generation is required in harsh environments.
For engineers reviewing the LTC6992HS6-3#TRMPBF datasheet, LTC6992HS6-3#TRMPBF pinout, LTC6992HS6-3#TRMPBF application, or LTC6992HS6-3#TRMPBF equivalent, this page provides verified technical context, validated pin functions, real-world application mappings, and confirmed automotive-grade alternatives - all specific to the –40°C to 125°C SOT-23 variant with 0%–95% duty cycle limit.
Technical Context
The LTC6992HS6-3#TRMPBF integrates a master oscillator (1 MHz max) whose frequency is set by ISET = VSET/RSET, where VSET is internally regulated to 1.00 V ±30 mV. Output frequency fOUT = 1 MHz × 50 kΩ / (NDIV × RSET), with NDIV selectable across eight values (1, 4, 16, ..., 16384) via a resistor divider on the DIV pin.
Duty cycle is linearly controlled by VMOD between 0.1×VSET and 0.9×VSET (≈100 mV–900 mV), with clamping at 0% or 95% extremes per its -3 variant specification. It features internal digital filtering, power-on reset, and polarity inversion capability via the MSB of DIVCODE.
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 without external clock sources. |
| Duty Cycle Range | 0% to 95% - enables full-off operation and near-full-on drive for LED/thermal actuation without oscillation stoppage at 100%. |
| Frequency Accuracy | ±1.7% max over temperature - ensures stable timing in automotive and industrial environments without calibration. |
| Supply Voltage | 2.25 V to 5.5 V - compatible with Li-ion, 3.3 V, and 5 V systems; includes 1.95 V power-on reset threshold. |
| Supply Current | 105–450 µA - scales with NDIV and RSET; as low as 105 µA at V+ = 2.25 V, RSET = 800 kΩ, NDIV ≥ 16. |
| Operating Temp | –40°C to 125°C - qualified per AEC-Q100 Grade H, suitable for under-hood and industrial control applications. |
| Output Drive | ±20 mA CMOS - directly drives LEDs, logic inputs, or small MOSFET gates without buffer stages. |
Pinout & Package
Package: 6-lead TSOT-23 (S6), 1 mm profile, lead-free, RoHS-compliant. Exposed pad not electrically connected; PCB connection optional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | 2.25 V–5.5 V supply; requires local 0.1 µF bypass to GND for noise immunity and stability. |
| DIV | Programmable divider & polarity select | 4-bit A/D input; resistor divider sets NDIV (1–16384) and output polarity (POL bit); ≤100 pF capacitance required. |
| SET | Frequency-setting current input | Internally regulated to 1.00 V; ISET = VSET/RSET programs master oscillator; RSET = 50 kΩ–800 kΩ. |
| MOD | Analog PWM control input | 0.1×VSET to 0.9×VSET (≈100–900 mV) sets duty cycle linearly; clamps at 0%/95% for LTC6992-3. |
| GND | Ground reference | Low-inductance ground plane connection required; ties internal regulator and A/D reference. |
| OUT | PWM output driver | CMOS rail-to-rail output; ±20 mA drive; 30 Ω typical output impedance; rise/fall times <2.7 ns at V+ = 2.25 V. |
Key Features
| Feature | Design Value |
|---|---|
| Voltage-controlled PWM | Direct 0–1 V analog modulation input eliminates need for DAC or microcontroller PWM peripherals. |
| Eight-frequency division options | NDIV = 1, 4, 16, 64, 256, 1024, 4096, 16384 enables precise frequency scaling without external dividers. |
| Automotive temperature grade | H-grade (–40°C to 125°C) with AEC-Q100 qualification ensures reliability in engine control and ADAS modules. |
| Low supply current at low frequency | As low as 105 µA at 2.25 V, enabling battery-powered sensor nodes and always-on subsystems. |
| Integrated power-on reset | Ensures clean startup and prevents glitched output during supply ramp; 1.95 V threshold guarantees robust POR. |
Applications
| LED Dimming Control | Heater Temperature Regulation |
|---|---|
|
Use Scenario: Precise brightness control of automotive cabin LEDs or industrial status indicators under wide ambient temperature swings. IC Role / Device Role / Timing Role: Generates stable, low-jitter PWM signal with 0%–95% duty cycle to drive constant-current LED drivers. Use Value: Eliminates microcontroller dependency; maintains ±1.7% frequency accuracy across –40°C to 125°C for consistent luminance. |
Use Scenario: Closed-loop thermal management in automotive HVAC actuators or industrial process heaters. IC Role / Device Role / Timing Role: Provides analog-input PWM output to gate a power MOSFET controlling resistive heating element. Use Value: 115 µA typical supply current at 100 kHz enables low-power thermal hold modes; 0% duty cycle allows full off-state cooling. |
| PWM Servo Loops | High-Vibration Motor Control |
|
Use Scenario: Position control of RC-style servos in robotics or drone gimbals exposed to mechanical shock and EMI. IC Role / Device Role / Timing Role: Delivers jitter-free, repeatable PWM pulses to servo amplifier ICs with minimal layout sensitivity. Use Value: <1.2% period jitter at NDIV = 1 ensures sub-millisecond timing consistency critical for position accuracy. |
Use Scenario: Fan speed control in engine compartments or industrial machinery subject to sustained vibration and thermal cycling. IC Role / Device Role / Timing Role: Generates robust PWM signal immune to supply ripple and board-level noise due to internal regulation and filtering. Use Value: 64°C/W θJA and –40°C to 125°C rating allow direct mounting on metal-core PCBs; no external compensation needed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-controlled PWM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6992HS6-1#TRMPBF | 0%–100% duty cycle range; allows full oscillation stop at 0% and full-on at 100%. | Suitable for applications requiring complete output disable (e.g., safety-critical shutdown). | Select when system design requires guaranteed zero-output state or 100% conduction without clamping. |
| LTC6992HS6-4#TRMPBF | 5%–100% duty cycle range; minimum clamp at 5%, no 0% output. | Preferred for motor drivers or solenoids needing minimum conduction to prevent stiction or dropout. | Choose when load requires non-zero minimum duty cycle to maintain operational bias or avoid turn-off transients. |
Compared with LTC6992HS6-3#TRMPBF, the -1 variant offers wider dynamic range including true 0% and 100% states, while the -4 variant guarantees minimum conduction-making the -3 optimal for designs needing full-off capability with upper-limit clamping at 95% for margin-safe thermal control.
Availability
LTC6992HS6-3#TRMPBF is available at Aetrix Electronics and suitable for LED dimming control, heater temperature regulation, and PWM servo loops requiring stable component supply across extended temperature ranges and automotive-grade reliability.
Supply support for LTC6992HS6-3#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 LTC6992HS6-3#TRMPBF belongs to the TimerBlox family-designed for plug-and-play timing functions without software or external components, targeting space-constrained, high-reliability applications in automotive and industrial control.
FAQ
What is the duty cycle range of the LTC6992HS6-3#TRMPBF?
The LTC6992HS6-3#TRMPBF has a specified duty cycle range of 0% to 95%. This means it can generate output pulses from fully off (0% duty) up to 95% conduction, with clamping at both limits. Unlike the -1 version, it does not reach 100%, and unlike the -2/-4 versions, it supports true 0% - making it ideal for applications requiring guaranteed off-state while limiting maximum conduction for thermal safety. The LTC6992HS6-3#TRMPBF achieves this behavior through internal analog limiting circuitry tied to its MOD pin voltage thresholds.
How is the output frequency programmed on the LTC6992HS6-3#TRMPBF?
The LTC6992HS6-3#TRMPBF output frequency is set using two elements: an external resistor RSET connected between SET and GND, and a resistor divider on the DIV pin. RSET determines the master oscillator frequency (fMASTER = 1 MHz × 50 kΩ / RSET), while the DIV pin voltage selects NDIV (1, 4, 16, ..., 16384) via an internal 4-bit A/D converter. Final fOUT = fMASTER / NDIV. For example, with RSET = 200 kΩ and DIVCODE = 4 (NDIV = 16), fOUT = 1 MHz × 50 kΩ / (200 kΩ × 16) = 15.625 kHz. The LTC6992HS6-3#TRMPBF requires no external capacitors or crystals.
Does the LTC6992HS6-3#TRMPBF require a microcontroller to operate?
No, the LTC6992HS6-3#TRMPBF is a self-contained analog PWM generator requiring no firmware, clock source, or digital interface. It operates with only three passive components: RSET (frequency), a two-resistor divider on DIV (division ratio), and a voltage source on MOD (duty cycle). Its internal 1 V regulator, oscillator, divider, and PWM modulator eliminate MCU dependency - ideal for cost-sensitive or safety-critical systems where software failure must be avoided. The LTC6992HS6-3#TRMPBF delivers deterministic, jitter-controlled timing independent of host processor load or code execution.
What is the operating temperature range for the LTC6992HS6-3#TRMPBF?
The LTC6992HS6-3#TRMPBF is rated for continuous operation from –40°C to +125°C and is qualified to AEC-Q100 Grade H standards. This makes it suitable for under-hood automotive applications, industrial motor drives, and outdoor equipment exposed to extreme thermal cycling. All key specifications - including frequency accuracy (±1.7%), duty cycle error (<3.7%), and supply current - are guaranteed across this full range. The LTC6992HS6-3#TRMPBF uses silicon oscillator technology with low temperature drift (±0.005%/°C), ensuring stable performance without external compensation.
Can the LTC6992HS6-3#TRMPBF drive an LED directly?
Yes, the LTC6992HS6-3#TRMPBF can drive an LED directly when used with a series current-limiting resistor. Its CMOS output delivers ±20 mA at rail-to-rail swing (GND to V+) and has ~30 Ω output impedance. For example, with V+ = 3.3 V and a red LED (VF ≈ 1.8 V), a 75 Ω resistor limits peak current to ~20 mA. However, for high-current or high-efficiency LED arrays, an external MOSFET or driver is recommended. The LTC6992HS6-3#TRMPBF's 0%–95% duty cycle and low 115 µA quiescent current at 100 kHz make it especially effective for efficient, thermally safe LED dimming.
LTC6992HS6-3#TRMPBF 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:
- -40°C ~ 125°C
- Supplier Device Package:
- TSOT-23-6
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC6992HS6-3#TRMPBF FAQ
1.How can I place an order for LTC6992HS6-3#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6992HS6-3#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 LTC6992HS6-3#TRMPBF reliable?
The price and inventory of LTC6992HS6-3#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6992HS6-3#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC6992HS6-3#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6992HS6-3#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6992HS6-3#TRMPBF?
LTC6992HS6-3#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6992HS6-3#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 LTC6992HS6-3#TRMPBF?
For technical support, including LTC6992HS6-3#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6992HS6-3#TRMPBF requirements.
6.How does Aetrix verify that LTC6992HS6-3#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC6992HS6-3#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 LTC6992HS6-3#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC6992HS6-3#TRMPBF?
All LTC6992HS6-3#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6992HS6-3#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 LTC6992HS6-3#TRMPBF part is unused and in its original packaging.
Return procedure for LTC6992HS6-3#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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