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L9960T 数据表(PDF) 3 Page - STMicroelectronics

部件名 L9960T
功能描述  Automotive Single/Dual H-Bridge, SPI programmable DC Brushed Motor Driver
PDF  95 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L9960T 数据表(HTML) 3 Page - STMicroelectronics

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DS11115 Rev 10
3/95
L9960, L9960T
Contents
3
4.6
Driver configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.6.1
Slew rate control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.6.2
Current slew rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.6.3
Voltage slew rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.6.4
Current limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4.7
Driver protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4.7.1
Over-temperature protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4.7.2
Over-temperature monitoring electrical characteristics . . . . . . . . . . . . . 56
4.7.3
Short-circuit to battery: over-current detection in low-side transistors . . 57
4.7.4
Short-circuit to ground: over-current detection in high-side transistor . . 58
4.7.5
Load in short-circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
4.7.6
Over-current detection electrical characteristics . . . . . . . . . . . . . . . . . . 59
4.8
Diagnostics and registers descriptions in case of validity bit configuration 60
4.8.1
Diagnostic Reset strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
4.8.2
Diagnostic reset bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
4.8.3
Global Failure Bit NGFAIL definition . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
4.8.4
Diagnostic of "Over-current" in on-state . . . . . . . . . . . . . . . . . . . . . . . . 65
4.8.5
Diagnostic of "Open Load" in on-state . . . . . . . . . . . . . . . . . . . . . . . . . . 69
4.8.6
On-state diagnostics electrical characteristics . . . . . . . . . . . . . . . . . . . . 70
4.8.7
Off-state diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
4.8.8
Off-state diagnostic electrical characteristics . . . . . . . . . . . . . . . . . . . . . 73
4.9
SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
4.9.1
Protocol description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
4.9.2
SPI command and response words format . . . . . . . . . . . . . . . . . . . . . . 75
4.9.3
Read ASIC traceability number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
4.9.4
Read Logic HW version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
4.9.5
Parity bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
4.9.6
SPI communication mode (Parallel and Daisy chain mode) . . . . . . . . . 79
4.9.7
Communication check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
4.9.8
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
5
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
5.1
PowerSSO-36 (exposed pad) package mechanical data . . . . . . . . . . . . . 89
6
Reference document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
7
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93



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