L9969X datasheet(3/70 Pages) STMICROELECTRONICS

номер детали	L9969X

подробное описание детали	Automotive chip for single and dual H-bridge

PDF	70 Pages

Scroll/Zoom	100%

производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

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3 / 70 page

Figure 2. L9969T twin bridge IC block diagram

OUT11

PGND1

VS1

Charge-

pump

VCP1

HS1 driver +

power MOS

LS1 driver +

power MOS

current-sense

+ current A/D

Current

feedback

output chain

CF1

Digital

block

NVM

(Non-volatile

memory)

Internal

referencing

and regulators

VDD1

sensor

+ A/D

VDD2

monitor

undervoltage

monitor

AGND1

AGND2

VDD2

Internal

short

GNDNABE1

GNDNABE2

OUT12

VDD1

monitor

OUT21

PGND2

VS2

OUT22

CF2

SCK

NSSx

DIRx

PWMx

DISx

NABE1

Input

digital

buffer

Internal

pull-down

NABE2

Internal

pull-down

BRIDGE 1

Input

digital

buffer

HS2 driver +

power MOS

LS2 driver +

power MOS

Current

feedback

output chain

Charge-

pump

VCP2

HS1 driver +

power MOS

LS1 driver +

power MOS

OFF

diagnostics

sensor

+ A/D

BRIDGE 2

HS2 driver +

power MOS

LS2 driver +

power MOS

current-sense

+ current A/D

HS+LS

overcurrent

detection

OFF

diagnostics

HS+LS

overcurrent

detection

HS11 command

HS12 command

LS12 command

LS11 command

HS21 command

HS22 command

LS22 command

LS21 command

TEST

(used for factory test-mode only)

L9969x

Block diagram and pin description

DS14029 - Rev 6

page 3/70

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