Application guide

Rack power & thermal monitoring

Build monitoring and control paths around DC power rails, temperature sensors and equipment fans.

4 functional blocks7 components for evaluationCompare all parameters ↓
Explore the system

Component building blocks

Functional blocks for selection; device connections and component values depend on your design.

FUNCTION / 01

Current monitoring

Amplify the voltage across a current-sense resistor. Check input common-mode range, gain and error budget.

FUNCTION / 02

Temperature monitoring

Read equipment temperature using the handbook-listed temperature sensor. Verify the sensing arrangement and interface in the device documentation.

FUNCTION / 03

Brushless motor control

Use the brushless DC controller and its speed-feedback adapter to build a motor control loop. These control devices require an appropriate external power stage.

FUNCTION / 04

Analog data acquisition

Digitize analog signals using the channel count, resolution, sample rate and interface recorded for each ADC.

Compare the components

Electrical parameters & cross references

All handbook parameters for the components shown above. Scroll each table horizontally to view every column.

Current-sense Amplifiers

BI Part NumberCross ReferenceFunctionSupply voltage (V)Input offset voltage (µV)Input bias current (nA)Supply current (mA)Common-mode voltage (V)Gain (V/V)Package
BICM193INA193Current-sense amplifier1850021000010–7020SOT23-5
BICM194INA194Current-sense amplifier with 50× gain1850021000010–7050SOT23-5/6

Temperature Sensors

BI Part NumberCross ReferenceFunctionSupply voltage (V)Input voltage (V)Operating current (mA)Quiescent current (mA)Temperature error (°C)Package
BI423TMP423Temperature Sensors2.7–5.52.7–5.50.0380.01±1.5°CSOP-8

Motor Drivers

BI Part NumberCross ReferenceFunctionMotor typeSupply voltage (V)Output current (A)Core functionsPackage
BIW33035PMCMC33035Motor DriversBrushless DC~40V100mA(peak drive current)Three- or four-phase brushless DC motor control; H-bridge drive, rotor-position decoder, temperature-compensated reference and Hall-sensor feedback.SOP-24
BIW33039PMCMC33035Motor DriversBrushless DC5.5–920mA(control signal)Closed-loop speed-control adapter providing speed feedback; used with a controller such as BIW33035PMC.SOP-8

Analog-to-digital Converters

BI Part NumberCross ReferenceFunctionChannelsResolution (bits)SNR (dB)INLMaximum sample rate (MSPS)InterfacePackage
BI7606PMCAD76068-channel, 16-bit ADC81692±1LSB0.2SPI, ParallelLQFP64
BI1115PMCADS11154-channel, 16-bit ADC with I²C interface416—1LSB0.002I2CMSOP-10

Selection based on documented BI component functions. Cross references are comparison aids and do not establish drop-in compatibility or transfer another manufacturer’s qualification.