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L99MD01 Datasheet(PDF) 1 Page - STMicroelectronics |
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L99MD01 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 54 page  September 2013 Doc ID 17242 Rev 6 1/54 1 L99MD01 Octal half-bridge driver with SPI control for automotive application Features ■ 8 half bridges ■ RON =typ. 0.9 Ω (HS), 0.64 Ω (LS) @Tj =25 °C ■ Current limit of each output at min. 0.8 A ■ Intrinsic DC/DC step up converter driving an external MOSFET ■ PWM mode option for all half bridges for hold current ■ Internal PWM generation ■ Two current monitor outputs ■ SPI interface for data communication ■ Temperature warning ■ All outputs overtemperature protected ■ All outputs short circuit protected ■ VCC supply voltage 3.0 to 5.3 V ■ Very low current consumption in standby mode typ. 5 µA ■ VS operating range compliant: 6 V – 18 V Applications ■ Stepper motor driver and / or DC ■ Intended to drive HVAC flaps Description The L99MD01 is an octal half-bridge driver for automotive applications. The device is intended to drive DC and/or stepper motors. Using the boost converter it’s possible to drive 4 stepper motors simultaneously. Without boost converter the system is able to run 3 stepper motors in sequential mode or 2 stepper motors simultaneously. The octal half bridge configuration allows also to drive 4 DC-motors simultaneously and 7 DC-motors sequentially. The integrated 24 bit standard Serial Peripheral Interface (SPI) controls all outputs and provides diagnostic information: normal operation, open- load in on-state, overcurrent, temperature warning and overtemperature. Table 1. Device summary Package Order codes Tube Tape and reel PowerSSO-36 L99MD01XP L99MD01XPTR PowerSSO-36 www.st.com |
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