I2c Relay Driver Ic

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I2c relay driver ic.

Microcontroller used in the project is stm32f103c8t6. Relay driver ic uln2003 internal schematic diagram. The first one is for providing power to internal control circuitry. Solenoid relay vdd 3 3 v 5 0 v vdd vpwr gnd out15 out0 out1 out2 out3 out4 out5 out6 out7 out8 out9 out10 out11 out12 out13 out14 vbat sopwr mosi so pwm pwm miso si cs sclk sclk rst rst 8.

The ncv7240 is an automotive eight channel low side driver providing drive capability up to 600 ma per channel. Use our selection tool to compare and select the right ti i2c general purpose i o gpio device to expand the number of available i2c i o pins in your design. The ic uln2003a comprises of 7 npn darlington pairs as shown in the internal schematic diagram and is typically used to switch inductive loads dissipates voltage spikes if any using suppression diode and to drive stepper motors. Pin 0 of port a is connected to input 1 of uln2003 relay driver.

The i2c relay16 is designed to piggyback on commonly available chinese made boards with 16 spdt relays. For example a relay with a 5v coil can be driven directly from the rectified 120 vac or 230 vac line. The pin diagram of ic uln2003a is shown in the above figure which consists of 16 pins. The ic includes two high voltage linear regulators.

Output control is via a spi port and offers convenient reporting of faults for open load or short to ground over load and over temperature conditions. Line driver pwm rst cs so vref. How and why you should use load switches for power sequencing. 8 channel relay driver with integrated 5 v ldo and zero volt detection datasheet rev.

More than a relay driver spider at a glance 2 spider at a glance spider is the newest generation of infineon technologies spider product family. With a broad portfolio offering different driver topologies high side low side and configurable switches a standardized spi register. Port a pins 0 1 2 3 of stm32 microcontroller are used as output pins. The prices are representative and do not reflect final pricing.

We don t sell the relay boards directly but they re available from multiple sources various vendors on amazon 1 2 sainsmart or even direct from china on ebay included are two 6p6c i2c connectors a female 20 pin dual row connector to attach to the relay board s header a. How can a load switch extend your device s battery life. Contact your local microchip sales representative or distributor for volume and or discount pricing. Pin 1 of port a is connected to input 3 pin 2 is connected to input 5 and pin 3 is connected to pin 7 of uln2003 relay driver.