LM96551

SNAS511B – OCTOBER 2011 – REVISED MAY 2013

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PIN DESCRIPTIONS

Pin No.

Name

Type

Function and Connection

Logic control positive output channel P

21, 23, 25, 27, 33, 35, 37,

PIN

Input

1 = ON

39

n=0...7

0 = OFF

Logic control negative output channel N

22, 24, 26, 28, 34, 36, 38,

NIN

Input

1 = ON

40

n=0...7

0 = OFF

59, 60

62, 63

65, 66

68, 69

Output

High voltage output of channels 0 to 7

72, 73

75, 76

78, 79

1, 2

Chip power enable

29

EN

Input

1 = ON

0 = OFF

Output current mode control

31

MODE

Input

1 = Max Current

0 = Low Current

Over-temperature indicating IC temp > 125°C

0 = Over-temperature

30

OTP

Output

1 = Normal temperature

This pin is open-drain.

4, 5, 6, 7, 54, 55, 56, 57

VPP

Power

Positive high voltage power supply (+3.3V to +50V)

11, 12, 13, 14, 47, 48, 49,

VNN

Power

Negative high voltage power supply (-3.3V to -50V)

50

8, 53

VPF

Power

Positive internal floating power supply (VPP -10V)

10, 51

VNF

Power

Negative internal floating power supply (VNN +10V)

18, 43

VDD

Power

Positive level-shifter supply voltage (+10V)

16, 45

VDN

Power

Negative level-shifter supply voltage (-10V)

20, 41

VLL

Power

Logic supply voltage. Hi voltage reference input (+2.5 to +5V)

All VSUB pins must be connected to most negative potential of the IC.

0, 15, 46

VSUB

Power

NOTE: The exposed thermal pad is connected to VSUB.

3, 9, 52, 58, 61, 64, 67, 70,

HVGND

Ground

High voltage reference potential (0V)

71, 74, 77, 80

17, 19, 32, 42, 44

AGND

Ground

Analog and Logic voltage reference input, logic ground (0V)

4

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