Key facts
- Brand
- STMicroelectronics
- Model
- L9903
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-08
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STMicroelectronics L9903 Motor Bridge Controller Datasheet
The L9903 is a motor bridge controller designed for automotive applications with an ISO 9141 bus interface. It controls power MOS bridge drivers and includes features such as overvoltage, undervoltage, short circuit, and thermal protection. The device supports PWM operation frequencies up to 30kHz and includes a charge pump for driving power MOSFETs.
Read onlineSTMicroelectronics L9903 specifications
| Operating Supply Voltage | 8V to 20V |
|---|---|
| Overvoltage Max | 40V |
| Quiescent Current in Standby | Less than 50uA |
| PWM Operation Frequency | Up to 30kHz |
| Operating Junction Temperature | -40 to 150 °C |
| Bootstrap Voltage | -0.3 to 40 V |
Source: STMicroelectronics L9903 Motor Bridge Controller Datasheet
All STMicroelectronics L9903 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What is the operating supply voltage range?
The operating supply voltage ranges from 8V to 20V, or 6V with an implemented step-up converter.
From: STMicroelectronics L9903 Motor Bridge Controller Datasheet
Does the L9903 support ISO 9141?
Yes, it features an ISO 9141 compatible interface for automotive applications.
From: STMicroelectronics L9903 Motor Bridge Controller Datasheet
What voltage level must be exceeded for the device to switch to a specific startup state?
The device switches to a specific behavior when the voltage over Cpgg exceeds 3.5V.
From: STMicroelectronics AN2229 L9903/L9904 Startup Behavior Application Note
What is the minimum supply voltage required before enabling the device?
The supply voltage (Vs) must be greater than 7V before the EN pin is set high.
From: STMicroelectronics AN2229 L9903/L9904 Startup Behavior Application Note