Block diagram and pin descriptions

L99UDL01

8/24

DB3264 Rev 3

32

VS4_1

Supply for half bridge 4

33

VS4_2

Supply for half bridge 4

34

OUT4_1

Half bridge output 4

35

OUT4_2

Half bridge output 4

36

GND4_1

Ground for half bridge 4

37

GND4_2

Ground for half bridge 4

38

VS5_1

Supply for half bridge 5

39

VS5_2

Supply for half bridge 5

40

OUT5_1

Half bridge output 5

41

OUT5_2

Half bridge output 5

42

GND5_1

Ground for half bridge 5

43

GND5_2

Ground for half bridge 5

44

VS6_1

Supply for half bridge 6

45

VS6_2

Supply for half bridge 6

46

OUT6_1

Half bridge output 6

47

OUT6_2

Half bridge output 6

48

GND6_1

Ground for half bridge 6

49

GND6_2

Ground for half bridge 6

50

SCK

SPI Clock - This SCK provides the clock of the SPI. Data present at Serial Data Input

(SDI) is latched on the rising edge of Serial Clock (SCK) into the internal shift registers

while on the falling edge data from the internal shift registers are shifted out to Serial

Data Out (SDO).

51

CSN

SPI Chip Select Not -The communication interface is deselected, when this input signal

is logically high. A falling edge on CSN enables and starts the communication while a

rising edge finishes the communication and the sent command is executed when a

valid frame was sent. During communication start and stop the Serial Clock (SCK) has

to be logically low. The Serial Data Out (SDO) is in high impedance when CSN is high

or a communication timeout was detected

52

SDI

Serial Data In - This input is used to transfer data serially into the device. Data is

latched on the rising edge of Serial Clock (SCK).

53

SDO

Serial Data Out - This output signal is used to transfer data serially out of the device.

Data is shifted out on the falling edge of Serial Clock (SCK).

54

VDD

I/O Supply (+5 V or 3.3 V)

55

C3V3

Capacitor decoupling pin for internal 3.3 V regulator

56

GND

Ground for IC and I/O

57

NC

Not Connected pin; to leave floating

58

VS

Supply for IC

59

CP2-

Charge pump capacitor pin

Table 2. Pin description (continued)

Pin #

Name

Description