The L9733 is a highly flexible monolithic, medium current, output driver that incorporates 8 outputs that can be used as either internal low or high-side drives in any combination. It has a supply voltage range of 4.5V to 5.5V, a maximum resistance value of 0.7Ω (25°C) and 1.2Ω (125°C), and a minimum current limit of 1A for each output. It also has a minimum output voltage clamping of 40V in low-side configuration and a maximum output voltage clamping of -14V in high-side configuration. The chip features an SPI interface for outputs control and diagnosis data communication, as well as additional PWM inputs for 3 outputs. Each channel has independent thermal shutdown and diagnostics for open load, short to GND, short to Vb, and overcurrent in latched or unlatched mode. It also has an internal charge pump without the need for an external capacitor and controlled SR for reduced EMC.
The L9733 is a highly flexible monolithic medium current output driver incorporating eight outputs that can be used as either internal low or high-side drives in any combination. The device features independently self-configuring drivers, allowing users to connect loads without external configuration logic.
Key features include an SPI interface for output control and diagnosis data communication, additional PWM inputs for three specific outputs (6-8), and independent thermal shutdown for all channels. It also includes open load and short-to-GND/short-to-Vbat diagnostics in latched or unlatched modes.
| Supply voltage range | 4.5 V to 5.5 V |
|---|---|
| Maximum clamping energy at switch-off | 20 mJ |
The device operates with a supply voltage from 4.5 V to 5.5 V.
The L9733 incorporates eight independently self-configuring low/high side drivers.