PT6314 Datasheet, PDF (6/49 Pages) Texas Instruments – 3 Amp Adjustable Positive Step-down Integrated Switching Regulators

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Dot Character VFD Controller/Driver IC
PT6314
DUTY RATIO SETTING
DS0 and DS1 control the duty ratio of PT6314. Please refer to the table below.
DS0
DS1
DUTY RATIO
0
0
1/16 (No. of GRID=16)
0
1
1/24 (No. of GRID=24)
1
0
1/20 (No. of GRID=20)
1
1
1/40 ( No. of GRID=40)
Please take note that the external extension grid driver is needed to set up 1/40 duty mode.
SEGMENT SETTING
CONDITION 1: 2-LINE DISPLAY (N=“1”), RL1=“0” AND RL2=“0”
The number of Segment Pins is controlled by the RL1 and RL2.
Pin Name Pin No. Pin Name Pin No. Pin Name Pin No. Pin Name
SG1
38
SG18
55
NC
72
SG51
SG2
39
SG19
56
SG35
73
SG52
SG3
40
SG20
57
SG36
74
SG53
SG4
41
SG21
58
SG37
75
SG54
SG5
42
SG22
59
SG38
76
SG55
SG6
43
SG23
60
SG39
77
SG56
SG7
44
SG24
61
SG40
78
SG57
SG8
45
SG25
62
SG41
79
SG58
SG9
46
SG26
63
SG42
80
SG59
SG10
47
SG27
64
SG43
81
SG60
SG11
48
SG28
65
SG44
82
SG61
SG12
49
SG29
66
SG45
83
SG62
SG13
50
SG30
67
SG46
84
SG63
SG14
51
SG31
68
SG47
85
SG64
SG15
52
SG32
69
SG48
86
SG65
SG16
53
SG33
70
SG49
87
SG66
SG17
54
SG34
71
SG50
88
SG67
SG68
106
SG77
116
GR18
126
GR8
SG69
107
SG78
117
GR17
127
GR7
SG70
108
SG79
118
GR16
128
GR6
NC
109
SG80
119
GR15
129
GR5
SG71
110
GR24
120
GR14
130
GR4
SG72
111
GR23
121
GR13
131
GR3
SG73
112
GR22
122
GR12
132
GR2
SG74
113
GR21
123
GR11
133
GR1
SG75
114
GR20
124
GR10
134
NC
SG76
115
GR19
125
GR9
135
Pin No.
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
136
137
138
139
140
141
142
143
144
PT6314 V1.3
-6-
March, 2006