參數(shù)資料
型號: L9950XPTR
廠商: STMICROELECTRONICS
元件分類: 運動控制電子
英文描述: BRUSH DC MOTOR CONTROLLER, 10 A, PDSO36
封裝: ROHS COMPLIANT, SSOP-36
文件頁數(shù): 19/39頁
文件大?。?/td> 620K
代理商: L9950XPTR
Functional description of the SPI
L9950 - L9950XP
Doc ID 10311 Rev 10
4.8
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.
Test mode
LS1 HS1 LS2 HS2 LS3 HS3
DO
LS3 HS3 LS4 HS4 LS5 HS5
Test pad
! (both HI)
No error
! (both HI)
5A Iref
both HI
! (both HI)
DI
both HI
! (both HI)
Tsens1
! (both HI)
both HI
! (both HI)
CLK
! (both HI)
both HI
! (both HI)
Tsens2
both HI
! (both HI)
INT_CLK
both HI
! (both HI)
Tsens3
! (both HI)
both HI
PWM1
! (both HI)
both HI
Tsens4
both HI
! (both HI)
both HI
PWM2
both HI
! (both HI)
both HI
Tsens5
! (both HI)
both HI
Tsens6
both HI
Vbandgap
相關(guān)PDF資料
PDF描述
L9950 BRUSH DC MOTOR CONTROLLER, 10 A, PDSO36
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