L9950 STMicroelectronics, L9950 Datasheet - Page 26

• Manufacturer Part Number: L9950
• Description: IC DRIVER DOOR ACTUATOR PWRSO-36
• Manufacturer: STMicroelectronics
• Type: Door Actuator Driverr

Specifications of L9950

• Applications: Automotive
• Current - Supply: 7mA
• Voltage - Supply: 7 V ~ 28 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: PowerSO-36 Exposed Bottom Pad
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Functional description of the SPI
4.8
26/39
Test mode
The test mode can be entered by rising the CSN input to a voltage higher than 7.0 V. In the
test mode the inputs CLK, DI, PWM1/2 and the internal 2 MHz CLK can be multiplexed to
data output DO for testing purpose. Furthermore the over-current thresholds are reduced by
a factor of 4 to allow EWS testing at lower current. For EWS testing a special test pad is
available to measure the internal bandgap voltage, the TW and TSD thresholds.
The internal logic prevents that the Hi-Side and Lo-Side driver of the same half-bridge can
be switched on at the same time. In the test mode this combination is used to multiplex the
desired signals according to following table:
Table 18.
LS1 HS1 LS2 HS2 LS3 HS3
! (both HI) ! (both HI) ! (both HI)
! (both HI)
! (both HI) ! (both HI)
both HI
both HI
both HI
! (both HI) ! (both HI)
! (both HI)
Test mode
both HI
both HI
! (both HI)
! (both HI) INT_CLK
both HI
both HI
Doc ID 10311 Rev 10
No error
PWM1
PWM2
CLK
DO
DI
LS3 HS3 LS4 HS4 LS5 HS5
! (both HI) ! (both HI) ! (both HI)
! (both HI)
! (both HI) ! (both HI)
! (both HI)
both HI
both HI
both HI
both HI
! (both HI) ! (both HI)
! (both HI)
both HI
both HI
both HI
both HI
! (both HI)
! (both HI)
both HI
both HI
both HI
both HI
L9950 - L9950XP
Vbandgap
Test pad
5µA Iref
Tsens1
Tsens2
Tsens3
Tsens4
Tsens5
Tsens6