7~40Vin Energy-saving Relay Controller SCM1502A

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Product Introduction

After SCM1501B with 16.5V  500V input was launched, it received a warm response from the market. Therefore, 7V  40V SCM1502A is launched to meet DC contactor, relays, solenoid valves and other applications.

The SCM1502A is energy-saving control IC for relay, which can reduce the pick-up and holding power consumption. It has a built-in high-voltage startup circuit that can quickly start the controller with a charging current of above 8mA within the input voltage range of 7V~40V, so as to respond quickly when the relay is operated. In addition, the SCM1502A can also control the relay coil to achieve high current pick-up and low current holding. The pick-up current and the holding current can be set up independently to meet the various application requirements of relays. During the low current holding stage, when the input under-voltage occurs or the controller is disable, the controller activates the fast shutdown function to quickly disconnect the relay to reduce the influence of the SCM1502A on the disconnecting performance of the relay.

Product Application

It can be widely used in DC contactor, relays, solenoid valves and other occasions.

Typical application circuit

Product Features

  • Operating temperature range 7~40V to meet the various application requirements of relays
  • Real-time detection of input voltage, precise setting of relay operating voltage
  • Wide working input voltage range of 2.5:1
  • The pick-up current and the holding current can be set up independently, and the relay coil design is simpler
  • With built-in analog frequency jitter, it is easy to solve EMI problems
  • With fast shutdown function, it reduces the shutdown delay of relay
  • Taking power directly from the input side