Pin settings

STHV748

6/22

Doc ID 15450 Rev 1

2.3

Additional pin description

EN allows minimizing the power consumption. If EN=0, the self voltage reference is not

supplied. Supplying reference externally the total power consumption is reduced.

THSD is a thermal flag. The output stage of THSD pin is a Nch-MOS open-drain, so this

Ω) to positive low-voltage supply

(see Figure 1).If the internal temperature overtakes 160 °C, THSD goes down and put all

the channels in HZ state. Externally forcing THSD to positive low-voltage supply, the thermal

protection will be disabled.

D_CTR can be used to optimize 2nd HD performances by tuning the fall propagation delay

(tdf - see table 9). If D_CTR is equal to ground tdf has the nominal value. If D_CTR is being

varied from 2 V to 4.2 V tdf can be changed from -1ns to +600 ps respect to the nominal

value.

EXPOSED-PAD is internally connected to the substrate. It can be floating or connected to a

100 V capacitance toward ground in order to reduce noise during the receiving phase.

Pin N

Name

Function

IN/OUT

Type

45

HVM0_D

Negative high-voltage supply 0 channel D

I

P

46

HVM1_D

Negative high-voltage supply 1 channel D

I

P

47

REF_HVM0

Supply for low side 0 gate driver

I

P

48

DGND

Logic ground

I

A

49

DVDD

Positive logic supply

I

A

50

IN1_D

Input signal channel D

I

D

51

IN2_D

Input signal channel D

I

D

52

IN3_D

Input signal channel D

I

D

53

VDDP

Positive low-voltage supply

I

A

54

GND_PWR

Power ground

I

P

55

XDCR_D

Channel D, high-voltage output

O

P

56

LVOUT_D

Channel D, low-voltage output

O

A

57

LVOUT_A

Channel A, low-voltage output

O

A

58

XDCR_A

Channel A, high-voltage output

O

P

59

GND_PWR

Power ground

I

P

60

VDDM

Negative low-voltage supply

I

A

61

IN3_A

Input signal channel A

I

D

62

IN2_A

Input signal channel A

I

D

63

IN1_A

Input signal channel A

I

D

64

EN

Enable internal supply generators

I

D

Exposed-Pad

Substrate

I

P

Table 2.

Pin description (P = power, A = analog, D = digital) (continued)