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The L99MD01XPTR is an octal half-bridge driver for automotive applications.

The L99MD01XPTR device is used to drive DC and/or stepper motors. Four stepper motors can be driven simultaneously using the boost converter. Without the boost converter, the system can run 3 stepper motors in sequential mode or 2 stepper motors simultaneously. The octal half-bridge configuration can also drive 4 DC motors simultaneously or 7 DC motors sequentially.

An integrated 24-bit standard serial peripheral interface (SPI) controls all outputs and provides diagnostic information: normal operation, open load, overcurrent, temperature warning, and overtemperature.

Features of the L99MD01XPTR

8 half-bridges

RON = typ. 0.9 Ω (HS), 0.64 Ω (LS) @ Tj = 25 °C

Current limit of 0.8 A minimum per output

Built-in DC/DC boost converter driving external MOSFETs

PWM mode selectable on all half-bridges for current holding

Internal PWM generator

Two current monitoring outputs

SPI interface for data communication

Temperature warning

All outputs are over temperature protected

Short-circuit protection on all outputs

VCC supply voltage 3.0 to 5.3 V

Very low current consumption in standby mode, 5 µA typical

VS compliant Operating range: 6 V to 18 V

L99MD01XPTR Product Attributes

Manufacturer: STMicroelectronics

Product Category: Motor/Motion/Ignition Controllers and Drivers

Type: Half Bridge

Output Current: 250 mA

Operating supply current: 4.2 mA

Minimum operating temperature: - 40 C

Maximum operating temperature: + 150 C

Mounting Style: SMD/SMT

Package / Case: PowerSSO-36

Qualification: AEC-Q100

Humidity Sensitivity: Yes

Series: L99MD01

Applications for L99MD01XPTR

Stepper motor drivers and/or DC

To drive HVAC baffles

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