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L9662 데이터시트 PDF




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부품번호 L9662 기능
기능 Octal squib driver and quad Manchester/PSI5 encoded sensor interface ASIC
제조업체 STMicroelectronics
로고 STMicroelectronics 로고


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L9662 데이터시트, 핀배열, 회로
L9662
Octal squib driver and quad Manchester/PSI5 encoded sensor
interface ASIC for safety application
Datasheet - production data
'!0'03
LQFP64 (10x10x1.4mm)
Features
8 deployment drivers with SPI selectable firing
current and times
Capability to deploy the squib with 1.2 A
(min)/2 ms, 1.75 A (min)/1.0 ms and 1.75 A
(min)/0.65 ms between VRES of 7 V to 37 V
Capability to deploy the squib with 1.5 A
(min)/2 ms between VRES of 7 V to 25 V
Firing capability to deploy all channels
simultaneously
Independently controlled high-side and low-
side MOS for diagnosis
Analog output available for resistance
measurement
Squib short to ground, short to battery and
MOS diagnostic available on SPI register
Capability to deploy the squib the low side
MOS is shorted to ground
4 Fire enable inputs
Interface with 4 satellite sensors
Programmable independent current trip points
for each satellite channel
Support Manchester 1 or 2 protocol for satellite
sensors
Support PSI5 (Parity) protocol for satellite
sensors (reference PSI5 technical specification
V 1.2 /14.06.07)
Support for Sync pulse and minibus for satellites
Supports for variable bit rate detection
Independent current limit and fault timer
shutdown protection for each satellite output
Short to ground and short to battery detection
and reporting for each satellite channel
2 independent SPI interfaces
5.5 MHz SPI interface
Satellite message error detection
Hall effect sensor support on satellite channels
3 and 4.
Low voltage internal reset
2 kV ESD capability on all pins
Package: LQFP64
Technology: ST Proprietary BCD5
Description
The device is intended to deploy up to 8 squibs
and to interface up to 4 satellites. 2 satellite
interfaces can be used to interface Hall sensors.
Squib drivers are sized to deploy 1.2 A minimum
for 2 ms, 1.75 A minimum for 1 ms and 1.75 A
minimum for 0.65 ms during load dump along with
1.5 A minimum for 2 ms for VRES voltages less
than 25 V.
Full diagnostic capabilities of the squib interface
are provided. Satellite interfaces support
Manchester 1, 2 and PSI5 decoding with variable
bit rate.
Order code
L9662
L9662TR
Table 1. Device summary
Amb. temp range, C
Package
-40 to +85
LQFP64
Packing
Tray
Tape & Reel
September 2015
This is information on a product in full production.
DocID028325 Rev 1
1/80
www.st.com




L9662 pdf, 반도체, 판매, 대치품
List of tables
List of tables
L9662
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
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Table 10.
Table 11.
Table 12.
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Table 37.
Table 38.
Table 39.
Table 40.
Table 41.
Table 42.
Table 43.
Table 44.
Table 45.
Table 46.
Table 47.
Table 48.
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Absolute maximum degraded operating ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Operating ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
General - DC electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Squib deployment drivers and diagnostics - DC electrical characteristics . . . . . . . . . . . . . 14
Satellite interface - DC electrical characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
SPI timing - DC electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Features that are accessed/controlled for each of the SPIs . . . . . . . . . . . . . . . . . . . . . . . . 28
SPI1 MOSI/MISO response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
How faults shall be interpreted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
High side safing diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Voltage measurement diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
MISO responses to various events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Command description summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Configuration mode 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Configuration mode 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Deployment mode 1 bit definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Deployment mode 2 bit definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Diagnostic selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Diagnostic mode LS FET selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Diagnostic mode HS FET selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Diagnostic mode HSS selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Diagnostic mode VRESx selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Channel selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
MOSI diagnostic mode 2 bit definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
DEPLOY_STATUSx flag and the DEPLOY_SUCCESSx flag conditions. . . . . . . . . . . . . . 51
MOSI monitor mode 2 Bit definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Current measurement channel selections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
MOSI monitor mode 3 bit definition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
MOSI monitor mode 3 bit definition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
MCR and CCR settings based on the interfacing to a sensor or satellite . . . . . . . . . . . . . . 64
SPI register definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Commands/positions sent out on MOSI along with responses. . . . . . . . . . . . . . . . . . . . . . 66
MOSI MCR bit definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Sync pulse high time selections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Configuration of the IF3/V3 pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
MOSI CCR bit definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
MISO responses with D14=0 (Data register selection). . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Protocol A/B mode configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
PSI5 – parity protocol (Set in MCR D13:D10). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Default speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
On/off condition for satellite and decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Current range supported. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
CCR D14 definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
First response from the ASIC over SPI2e. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
LQFP64 (10x10x1.4 mm) package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
4/80 DocID028325 Rev 1

4페이지










L9662 전자부품, 판매, 대치품
L9662
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Block diagram and pin description
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DocID028325 Rev 1
7/80
79

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관련 데이터시트

부품번호상세설명 및 기능제조사
L9662

Octal squib driver and quad Manchester/PSI5 encoded sensor interface ASIC

STMicroelectronics
STMicroelectronics
L9663

PSI5 Transceiver IC

STMicroelectronics
STMicroelectronics

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