产品概要
描述
The L9781 is a multi valve pre-driver capable of driving 11 external N-channel logic level MOSFETs, controlling up to 5 inductive loads through peak and hold current control and one DC/DC step-up converter, providing full protection against accidental faults on the external hardware. The load peak and hold current control (together with the diagnosis) is done by the internal configurable Finite State Machines (FSMs) needing only the start of actuation commands from the main microcontroller.
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性能一览
- AEC-Q100 qualified
- 1 x DC/DC converter controller for VTank voltage generation (up to 80 V):
- 1 x low-side push-pull type N-channel MOSFET pre-driver
- 1 x current sensing block for current limitation
- 1 x voltage comparator with hysteresis for VTank voltage sensing
- 2 x driving channel controllers each made up of:
- 1 x high-side push-pull type VTank N-channel MOSFET pre-driver
- 1 x high-side push-pull type VBat N-channel MOSFET pre-driver
- 2 x low-side push-pull type N-channel MOSFET pre-driver
- 1 x differential amplifier with programmable gain for current sensing & peak current detection
- 1 x digital-to-analog converter for peak current threshold setting
- 1 x HW protection and diagnosis block for full load protection from accidental external short circuits
- 1 x additional peak and hold controller:
- 1 x high-side push-pull type VBat N-channel MOSFET pre-driver
- 1 x low-side push-pull type N-channel MOSFET pre-driver
- 1 x differential amplifier with programmable gain for current sensing and peak current detection
- 1 x digital-to-analog converter for peak current threshold setting
- 1 x HW protection and diagnosis block for full load protection from accidental external short circuits
- 1 x 32 bit SPI interface (up to 8 MHz)
- IC general control
- Programmable parameters setting
- Diagnosis and hardware protection management
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STMicroelectronics - L9781
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | 符合RoHS级别 | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| L9781TR | Active 产品已量产 | LQFP 64 10x10x1.4 mm | Automotive | Ecopack2 | - | - |
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持。
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Sample & Buy
| Part Number | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||
| L9781TR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
L9781TR Active