參數(shù)資料
型號： SI3212-BT
廠商： Electronic Theatre Controls, Inc.
元件分類： Codec
英文描述： PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION
中文描述： ProSLIC產品可編程的CMOS用戶接口/有振鈴編解碼器/電池電壓生成
文件頁數(shù)： 20/122頁
文件大小： 1950K
代理商： SI3212-BT
Si3210/Si3211/Si3212
20
Preliminary Rev. 1.11
Figure 13. Si321x Optional Equivalent Q5, Q6 Bias Circuit
The subcircuit above can be substituted into any of the ProSLIC solutions as an optional bias circuit for Q5, Q6. For
this optional subcircuit, C7 and C8 are different in voltage and capacitance to the standard circuit. R23 and R24 are
additional components.
Table 16. Si321x Optional Bias Component Values
Component
C7,C8
R23,R24
Value
Supplier/Part Number
Murata, Johanson, Venkel
100 nF, 100 V, X7R,
±
20%
3.0 k
, 1/10 W,
±
5%
Table 17. Component Value Selection for Si3210/Si3210M
Component
R28
Value
Comments
1/10 W, 1% resistor
For V
DD
= 3.3 V: 26.1 k
For V
DD
= 5.0 V: 37.4 k
1/10 W, 1% resistor
For V
CLAMP
= 80 V: 541 k
For V
CLAMP
= 85 V: 574 k
For V
CLAMP
= 100 V: 676 k
R28 = (V
DD
+ V
BE
)/148
μ
A
where V
BE
is the nominal VBE for Q9
R29
R29 = V
CLAMP
/148
μ
A
where V
CLAMP
is the clamping voltage for V
BAT
Table 18. Component Value Selection Examples for Si3210M MOSFET/Transformer DC-DC Converter
VDC
3.3 V
5.0 V
12 V
24 V
Ringing Load/Loop Resistance
3 REN/117
5 REN/117
5 REN/117
5 REN/117
Transformer Ratio
1 - 2
1 - 2
1 - 3
1 - 4
R18
0.56
0.10
0.68
2.20
R19, R20
7.15 k
16.5 k
56.2 k
121 k
Note:
There are other system and software conditions that influence component value selection, so please refer to
AN45 “Design Guide for the Si3210 DC-DC Converter for detailed guidance.
Table 19. Component Value Selection Examples for Si3210 BJT/Inductor DC-DC Converter
VDC
5 V
12 V
24 V
Ringing Load/Loop Length
3 REN/117
5 REN/117
5 REN/117
There are other system and software conditions that influence component value selection, so
please refer to AN45 “Design Guide for the Si3210 DC-DC Converter for detailed guidance.
L1
R17
100
162
274
R18
0.12
0.56
2.2
R19, R20
16.5 k
56.2k
121 k
33
μ
H
150
μ
H
560
μ
H
Note:
R7
80.6
RRE
C7
100 nF
CRBN
Q4
5401
QTDN
C8
CTBN
100 nF
Q5
5551
QRP
R23
RRBN0
3.0k
R24
RTBN0
3.0k
Q3
5401
QRDN
R6
80.6
RTE
R12
RRBN
5.1k
R13
RTBN
5.1k
Q6
5551
QTN
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