l99pm62gxp STMicroelectronics, l99pm62gxp Datasheet - Page 8

• Manufacturer Part Number: l99pm62gxp
• Description: Power Management Ic With Lin And High Speed Can
• Manufacturer: STMicroelectronics

List of figures
List of figures
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Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Voltage source with external PNP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Voltage source with external PNP and current limitation . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Voltage source with external NPN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Voltage source with external NPN and current limitation . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Voltage regulator behaviour and diagnosis during supply voltage ramp-up / ramp-down
conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Watchdog in normal operating mode (no errors) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Watchdog with error conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Watchdog in Flash mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Change watchdog timing within long open window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Change watchdog timing within window mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
General procedure to change watchdog timing out of fail safe mode. . . . . . . . . . . . . . . . . 25
Change watchdog timing out of fail safe mode (watchdog failure) . . . . . . . . . . . . . . . . . . . 25
Example: exit fail safe mode from watchdog failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
LIN master node configuration using LIN_PU (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . 30
CAN wake up capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Over voltage and under voltage protection and diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . 36
Thermal shutdown protection and diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Phase shifted PWM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Typical application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Thermal data of PowerSSO-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
PowerSSO-36 PC board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
PowerSSO-36 Thermal Resistance junction to ambient vs PCB copper area (V1 ON) . . . 46
PowerSSO-36 Thermal Impedance junction to ambient vs PCB copper area (single
pulse with V1 ON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
PowerSSO-36 thermal fitting model (V1 ON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Watchdog timing (long, early, late and safe window) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Watchdog early, late and safe windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
LIN transmit, receive timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
SPI – transfer timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
SPI - input timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
SPI output timing (part 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
SPI output timing (part 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
SPI – CSN low to high transition and global status bit access . . . . . . . . . . . . . . . . . . . . . . 68
Read configuration register
Write configuration register
Format of data shifted out at SDO during write cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Format of data shifted out at SDO during read cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Format of data shifted out at SDO during read and clear status operation . . . . . . . . . . . . 77
PowerSSO-36 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
(1)
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Doc ID 17639 Rev 3
L99PM62GXP