Key facts
- Brand
- Texas Instruments
- Model
- CC2541
- Category
- microcontrollers
- Industry
- Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2026-10-13
Start here
Texas Instruments CC2541 Bluetooth Low Energy Power Consumption Measurement Guide
This document provides a guide for measuring power consumption and estimating battery life for devices running the Bluetooth Low Energy (BLE) stack on the Texas Instruments CC2541 microcontroller. It details the necessary hardware modifications, such as adding a shunt resistor and removing specific capacitors, to ensure accurate current measurements using an oscilloscope. The guide also outlines required software modifications to the SimpleBLEPeripheral project to minimize unnecessary power draw during testing.
Read onlineTexas Instruments CC2541 specifications
| Supply voltage range (Mode 1) | 8.5 V to 35 V |
|---|---|
| Operating junction temperature range | -40°C to 105°C |
| Output current (G1) | +/-3 A |
| Oscillator frequency range | 270 kHz to 330 kHz |
| Gain bandwidth (Voltage Error Amplifier) | 3 MHz to 4 MHz |
Source: Texas Instruments UCC2541 High-Efficiency Synchronous Buck PWM Controller Datasheet
All Texas Instruments CC2541 documents by type
How to use the product for one specific task, with worked examples.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What specific hardware modifications are required to the CC2540DK-MINI kit for power testing?
You must solder a wire to ground at pin 1 of the DEBUG connector, solder a 10 Ω resistor in line with VDD, and remove the 47uF capacitor (C7) from the board.
From: Texas Instruments CC2541 Bluetooth Low Energy Power Consumption Measurement Guide
What software change is needed in the SimpleBLEPeripheral project to reduce unnecessary power consumption?
You must comment out the line of source code that starts the periodic event timer in the SimpleBLEPeripheral_ProcessEvent function.
From: Texas Instruments CC2541 Bluetooth Low Energy Power Consumption Measurement Guide
What is the primary efficiency feature of the UCC2541?
It incorporates Predictive Gate Drive™ technology that virtually eliminates body diode conduction losses in synchronous rectifiers.
From: Texas Instruments UCC2541 High-Efficiency Synchronous Buck PWM Controller Datasheet
What are the available package types for the UCC2541?
The device is offered in thermally enhanced PowerPAD™ 20-pin HTSSOP (PWP) or 32-pin quad flatpack (RHB) packages.
From: Texas Instruments UCC2541 High-Efficiency Synchronous Buck PWM Controller Datasheet