L99SD01 Datasheet, PDF (1/2 Pages) STMicroelectronics – Integrated solenoid driver

L99SD01
Integrated solenoid driver for
CNG electronic injection systems
Automotive-qualified device for accurate and efficient control of
Compressed Natural Gas (CNG) injection systems
The L99SD01 represents the state
of the art in CNG electronic
injection systems. Thanks to its
high level of integration, all the
circuits needed to reliably and
accurately drive the injector
coil are integrated into the
same device. The embedded
closed-loop current regulator
gives a high level of precision
in CNG injection previously
not reachable, resulting in
an augmented reliability and
a much easier compliancy
with stringent CO₂ emissions
standards such as Euro 6.
Key Features
• Power MOS, protections, diagnostic and
I²C interface circuits in a single device
• Closed-loop current control of
solenoid current
• Programmable injector current profile
(timing and current amplitude)
KEY benefits
• Improved system reliability and
enhanced diagnostics
• Intrinsic compensation of CNG
injection over ageing effects, battery
voltage, temperature drifts and injector
production spreads
• Higher system efficiency
• Easier compliancy with more stringent
CO emissions standards
2
key APPLICATIONS
• Compressed Natural Gas (CNG)
electronic injection systems
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