Analog Devices Inc. LTC6992IDCB-2#TRMPBF

Overview

LTC6992IDCB-2#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 95% programmable duty cycle range, 3.81Hz–1MHz output frequency, and ±1.7% max frequency error over –40°C to +85°C. Used in LED dimming, heater control, and servo loops where stable, low-drift PWM generation is required.

For engineers reviewing the LTC6992IDCB-2#TRMPBF datasheet, LTC6992IDCB-2#TRMPBF pinout, LTC6992IDCB-2#TRMPBF application, or LTC6992IDCB-2#TRMPBF equivalent, this page provides verified package mapping (6-lead DFN), confirmed MOD/SET/DIV pin functions, duty-cycle clamping behavior, supply current vs. frequency curves, and automotive-grade thermal performance data - all extracted from Analog Devices' Rev. D datasheet and validated against official ordering information.

Technical Context

The LTC6992IDCB-2#TRMPBF implements a master oscillator with internal 1MHz reference scaled by I_SET = V_SET/R_SET, where V_SET is regulated to 1.00V ±30mV. Frequency division is performed by an on-chip 4-bit A/D converter interpreting DIV pin voltage to select NDIV ∈ {1, 4, 16, 64, 256, 1024, 4096, 16384}.

Duty cycle is linearly controlled via 0.1·V_SET to 0.9·V_SET (≈100mV–900mV) on the MOD pin, with hard clamps at 5% min / 95% max per its -2 variant designation. Output is CMOS, sourcing/sinking 20mA, with 500µs startup time and 115µA typical supply current at 100kHz.

Key Specifications

Pinout & Package

Package: 6-lead (2mm × 3mm) plastic DFN (DCB), exposed pad (Pin 7) connected to GND. Low-profile 1mm height suits space-constrained PCBs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage-controlled PWM applications.

Compared with LTC6992IDCB-1#TRMPBF and LTC6992IDCB-3#TRMPBF, the LTC6992IDCB-2#TRMPBF uniquely balances safety and linearity by eliminating both extreme states - reducing risk of unintended actuation while preserving full analog control resolution across its 90%-span range.

Availability

LTC6992IDCB-2#TRMPBF is available at Aetrix Electronics and suitable for LED dimming control, heater power regulation, and servo motor positioning requiring stable component supply across industrial temperature ranges and long-lifecycle production programs.

Supply support for LTC6992IDCB-2#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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, communications, automotive, and healthcare markets.

The TimerBlox family - including the LTC6992IDCB-2#TRMPBF - was engineered to replace discrete 555-based timers and complex FPGA logic with single-chip, analog-programmable timing solutions for embedded control and power management.

FAQ

What is the duty cycle range of the LTC6992IDCB-2#TRMPBF?

The LTC6992IDCB-2#TRMPBF provides a guaranteed 5% to 95% duty cycle range. This is enforced by internal clamping circuitry that prevents the output from reaching 0% or 100%, ensuring safe operation for loads sensitive to full-on or full-off states. The clamping thresholds are fixed per the -2 variant designation and do not require external components.

How is the output frequency programmed on the LTC6992IDCB-2#TRMPBF?

The LTC6992IDCB-2#TRMPBF uses a single external resistor (R_SET) connected between the SET pin and GND to program frequency. With R_SET ranging from 50kΩ to 800kΩ, the output frequency spans 3.81Hz to 1MHz, scaled further by the programmable divider (NDIV). V_SET is internally regulated to 1.00V, making frequency dependent only on R_SET tolerance and device accuracy.

Does the LTC6992IDCB-2#TRMPBF require external capacitors for stability?

The LTC6992IDCB-2#TRMPBF requires only a 0.1µF ceramic capacitor between V+ and GND, placed as close as possible to the pins. No capacitor is needed on the SET or MOD pins for basic operation; however, capacitance on SET must remain below 10pF to minimize jitter, and MOD pin capacitance should be minimized to preserve settling time and linearity.

What is the operating temperature range for the LTC6992IDCB-2#TRMPBF?

The LTC6992IDCB-2#TRMPBF is specified for operation from –40°C to +85°C (I-grade). This range is fully tested and guaranteed per the datasheet, supporting deployment in industrial control panels, outdoor equipment enclosures, and automotive cabin modules without thermal derating.

Can the LTC6992IDCB-2#TRMPBF drive MOSFET gates directly?

Yes - the LTC6992IDCB-2#TRMPBF features a CMOS output capable of sourcing and sinking up to ±20mA, with rail-to-rail swing (GND to V+) and ~30Ω output impedance. It can directly drive small-signal MOSFET gates (e.g., 2N7002, DMN2004) or logic-level power MOSFETs with gate charge ≤1nC. For higher gate charge devices, a dedicated gate driver is recommended.