(Hong Kong)
Product Summary
The L9949 is a microprocessor controlled power interface for automotive applications. It is realized in multipower BCD60III technology. Up to three DC motors and one grounded resistive load can be driven with its three half bridges, one full bridge and one highside driver power outputs. The L9949 integrated standard serial peripheral interface (SPI) controls all operation modes (forward, reverse, brake and high impedance). All diagnostic informations are available via the SPI. The L9949 is suitable for automotive applications.
Parametrics
L9949 absolute maximum ratings: (1)VS, DC supply voltage: -0.3 to 28 V; single pulse tmax < 400ms: 40V; (2)VCC, stabilized supply voltage, logic supply: -0.3 to 6 V; (3)VDI VDO VCLK, VCSN, digital input / output voltage: -0.3 to VCC + 0.3 V; (4)VCM, current monitor output: -0.3 to VCC + 0.3 V; (5)IOUT1,OUT2, OUT6 output current: ±10 A; (6)IOUT3,OUT5 output current: ±5 A.
Features
L9949 features: (1)one full bridge for 6A load (ron = 150mW); (2)three half bridges for 1.6A load (ron = 800mW); (3)one highside driver for 6a load (ron = 100mW); (4)very low current consumption in standby mode (IS < 6μA, typ. Tj ≤ 85℃); (5)serial peripheral interface (spi) to microcontroller; (6)all outputs short circuit protected; (7)current monitor output for full bridge and highside driver; (8)all outputs over temperature protected; (9)open load diagnostic for all outputs; (10)overload diagnostic for all outputs.
Diagrams
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 L9949 |
STMicroelectronics |
Power Driver ICs Door Actuator |
Data Sheet |
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L9949TR |
STMicroelectronics |
Power Driver ICs Door Actuator |
Data Sheet |
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