L9788
Multifunction IC for automotive engine management system
Data brief
1 channel LS main relay driver (MRD) with
internal diode for reverse battery protection
5 channels pre-drivers for external FET drivers
- Predriver 1&3 configurable for O2H load with
external Rshunt-on the source of Ext.
N-Channel Mos
6 channels pre-drivers for internal or external
igniter drivers
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H[SRVHGSDGGRZQ
1 K-Line ISO9141/LIN 2.1 compliant
*$'*36
Integrated charge-pump
VRS-interface
Features
Watchdog
AEC-Q100 qualified
Pin Wake-up
Engineered for ISO26262 compliant system
Temperature sensor and monitoring
1 pre boost regulator and 1 pre buck regulator
Stop-counter with Wake-up
1 linear 5 V regulator with 1 A output current
Dual bandgap reference & oscillator
3 independent self-protection 5 V tracking
regulator with 150 mA output.
Micro-second-channel MSC for differential
single ended mode
1 input voltage pin for monitor external
tracking.
SEO function
Coordinated soft start-up of all regulators
Package LQFP100 exposed pad
CAN-FD with wake up by CAN function
4 channels LS injector LS drivers
2 channels LS drivers for O2H load with current
sense
2 channels LS camshaft or solenoid drivers
5 channels LS relay drivers
Description
The L9788 is an integrated circuit designed for
automotive engine management system.
L9788 is a device realized in ST BCD proprietary
technology, able to provide the full set of power
supplies and signal preprocessing peripherals
needed to control a 4 cylinders internal
combustion engine.
2 channels LS LED drivers
3 channels LS/HS drivers with low battery
function for smart start
Table 1. Device summary
Order code
Package
Packing
L9788
LQFP100 14x14x1.4 mm
(Exposed pad down 7.6x7.6 mm)
Tube
L9788TR
October 2017
DocID031109 Rev 1
For further information contact your local STMicroelectronics sales office.
Tape & Reel
1/12
www.st.com
Contents
L9788
Contents
1
2
Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1
LQFP100 (14x14x1.4 mm exp. pad down) package information . . . . . . . . 8
2.1.1
3
2/12
Exposed pad size option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
DocID031109 Rev 1
L9788
Block diagram and pin description
1
Block diagram and pin description
1.1
Block diagram
Figure 1. Block diagram
*$'*36
DocID031109 Rev 1
3/12
12
Block diagram and pin description
1.2
L9788
Pin description
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Figure 2. Pin connection diagram (top view)
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- 100+130.75031100+16.28272
- 250+124.33347250+15.48362
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- 国内价格 香港价格
- 1000+89.349131000+11.12691