The Elmos System-Basis-Chip (SBC) family E523.02/12 controls controls four relays either low-side or high-side driven or three bistable relays (activation in sequential order). The relay holding current can be programmed by the external microcontroller via the PWM input pins.
The IC provides a LIN 2.x(1.3), SAE-J2602 compliant communication interface or PWM-interface with error feedback capability, which can be accessed by an external micro-controller. Also integrated functions are, system power supply (3.3V or 5V selectable) for an external μC and an independent window-watchdog .
The IC is configured and controlled over an SPI interface together with one PWM input pin for each relay driver. A set of diagnostic functions is provided, the status information can be read out via SPI. The LIN interface supports a “FLASH Mode” for fast upload of new firmware to the external micro- controller. For fast time-to-market Elmos provides demoboards as well as design-in support.
- Voltage range 7V to 28V (5V to 42V peak)
- Controls 4 relays, low- or high-side driven or 3 bistable relays
- Relay pull-in and holding current can be controlled via PWM input
- Power supply 3.3V or 5VC for external controller
- LIN 2.x interface (1.3), SAE-J2602 or PWM bidirectional
- Several diagnostic and protection functions
- Adjustable window watchdog
- TJunc peak = +170°C
|Info Sheet||PDF 165 kB|
- LIN 2.x or LIN 1.3 relay nodes
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|Part No.||Features||Package||Order No.|
|E523.02||LIN 2.x or PWM for 2 half bridges||QFN44L7||E52302C39B|
|E523.02||LIN 2.x or PWM for 2 half bridges||QSOP44||E52302C35E|
|E523.12||PWM for 2 half bridges||QFN44L7||E52312C39B|
|E523.12||PWM for 2 half bridges||QSOP44||E52312C35E|
|*Plug & Play||Chip with defined functionality | no controller programming necessary|
|*SoC||System-on-a-Chip | with integrated microcontroller|
|*SBC||System-Basic-Chip | with Voltage Regulator Reset, Watchdog, physical Interface|
|*Driver IC||Driver Chip without SBC or SoC features|