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L9969S Datasheet(PDF) 7 Page - STMicroelectronics

Part # L9969S
Description  Automotive chip for single and dual H-bridge
PDF  70 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9969S Datasheet(HTML) 7 Page - STMicroelectronics

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Pin #
Pin name
Description
I/O type
Class
19
NC
Not connected.
-
-
20
NC
Not connected.
-
-
21
NC
Not connected.
-
-
22
NC
Not connected.
-
-
23
NC
Not connected.
-
-
24
NC
Not connected.
-
-
25
NC
Not connected.
-
-
26
NC
Not connected.
-
-
27
NC
Not connected.
-
-
28
AGND
Ground connection for H-bridge (Device ground)
G
Local
29
TEST
Factory test-mode activation
I
Local-
30
VDD
5 V Supply for H-bridge. Input for VDD monitoring.
P
Local
31
VS
Supply voltage of H-bridge power stage
P
Global
32
VS
Supply voltage of H-bridge power stage
P
Global
33
DIS
Disable input of H-bridge.
High-level disables the power stage (OUT1 and OUT2)
I
Local
34
DIR
Direction input of H-bridge
I
Local
35
PWM
PWM input of H-bridge
Controls the frequency and the duty cycle of the power stage (OUT1 and OUT2).
I
Local
36
OUT2
Output 2 of H-bridge
O
Global
-
Exp. PAD
Exposed pad is connected to AGND
-
-
Note:
Legenda: I = Input, O = Output, P = Power Supply, G = Ground, I/O = Input/Output
Table 3. L9969T pin-out
Pin #
Pin name
Description
I/O type Class
1
PGND1
Power Ground of H-bridge1
G
Global
2
OUT11
Output 1 of H-bridge1
O
Global
3
SCK
SPI-Clock input
I
Local
4
NSS1
SPI-Slave Select input of H-bridge1
I
Local
5
SI
SPI-Slave In (data receive) input
I
Local
6
SO
SPI-Slave Out (data transceive) output
O
Local
7
CF1
Current feedback for H-bridge1.
Signal is proportional to the positive current in active LS-transistor of H-bridge1.
O
Local
8
NABE1
Bidirectional Enable/Disable in-/output.
Open-drain output, switched to low at VDDx over and undervoltage condition.
Low level disables the power stage. (OUT11 and OUT12)
I/O
Local
9
GNDNABE2 Reference Ground for VDD2-monitoring of H-bridge 2
G
Local
10
AGND2
Ground connection for H-bridge2 (Device ground)
G
Local
11
NC
Not connected.
-
-
12
VDD2
5 V Supply for H-bridge (2). Input for VDD (2) monitoring.
P
Local
L9969x
Pin definitions and functions
DS14029 - Rev 3
page 7/70



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