IC Data Sheets
8.
8.
IC Data Sheets
This chapter shows the internal block diagrams and pin
configurations of ICs that are drawn as “black boxes” in the
electrical diagrams (with the exception of “memory” and “logic”
ICs).
8.1
Diagram
, B02,LNBH25PQR (IC U751)
Figure 8-1 Internal block diagram and pin configuration
19460_300_130321.eps
130321
Block diagram
Pinning information
LNBH25
GND
DSQOUT
NC
DSQIN/
EXTM
VUP
VCC
PGND
FLT
NC
LX-A
SDA
ISEL
NC
NC
DETIN
NC
NC
VOUT
NC
VBYP
BPSW
ADDR
NC
SCL
1
2
3
4
5
6
18
17
16
15
14
13
7
8
9
12
11
10
19
20
21
22
23
24
GND
DSQOUT
NC
DSQIN
VUP
VCC
PGND
FLT
NC
LX
SDA
ISEL
NC
NC
DETIN
NC
NC
VOUT
NC
VBYP
BPSW
ADDR
NC
SCL
1
2
3
4
5
6
18
17
16
15
14
13
7
8
9
12
11
10
19
20
21
22
23
24
LNBH25
AM10400v1
VUP
SDA
SCL
ISEL
ADDR
DSQIN
Is
en
s
e
PW
M
C
T
R
L
PGND
DAC
Drop control
Tone ctrl
Diagnostics
Protections
I2C Digital core
LX
Voltage
reference
VCC
GND
BYP
DETIN
Tone
detector
Current
Limit
selection
DSQOUT
VOUT
G
a
te ctr
l
Linear
Regulator
FLT
BPSW