SI3215MPPQ1-EVB Silicon Laboratories Inc, SI3215MPPQ1-EVB Datasheet - Page 22

• Manufacturer Part Number: SI3215MPPQ1-EVB
• Description: BOARD EVAL W/SI3201 INTERFACE
• Manufacturer: Silicon Laboratories Inc
• Series: ProSLIC®r

Specifications of SI3215MPPQ1-EVB

• Main Purpose: Interface, Analog Front End (AFE)
• Utilized Ic / Part: Si3215
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Si3215
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 than the standard circuit. R23 and R24
are additional components.
22
Note: There are other system and software conditions that influence component value selection, so please refer to “AN45:
Note: There are other system and software conditions that influence component value selection.
3.3 V
5.0 V
VDC
VDC
12 V
24 V
12 V
24 V
5 V
Component
Component
Design Guide for the Si3210 DC-DC Converter” for detailed information.
Please refer to “AN45: Design Guide for the Si3210 DC-DC Converter” for detailed information.
R23,R24
Table 19.
C7,C8
R28
R29
Maximum Ringing Load/Loop Resistance
Maximum Ringing Load/Loop Resistance
Component Value Selection Examples for Si3215 BJT/Inductor DC-DC Converter
Table 18. Component Value Selection Examples for Si3215M
Table 17. Component Value Selection for Si3215/Si3215M
Table 16. Si321x Optional Bias Component Values
3 REN/117 Ω
5 REN/117 Ω
5 REN/117 Ω
5 REN/117 Ω
For V
For V
For V
3 REN/117 Ω
5 REN/117 Ω
5 REN/117 Ω
For V
For V
100 nF, 100 V, X7R, ±20%
1/10 W, 1% resistor
1/10 W, 1% resistor
3.0 kΩ, 1/10 W, ±5%
MOSFET/Transformer DC-DC Converter
CLAMP
CLAMP
CLAMP
DD
DD
= 3.3 V: 26.1 k Ω
= 5.0 V: 37.4 k Ω
Value
Value
= 100 V: 676 k Ω
= 80 V: 541 k Ω
= 85 V: 574 k Ω
Rev. 0.92
Transformer Ratio
150 µH
220 µH
67 µH
where V
L1
where V
1–2
1–2
1–3
1–4
CLAMP
R28 = (V
Murata, Johanson, Venkel
R29 = V
150 Ω
162 Ω
175 Ω
Supplier/Part Number
BE
R17
is the clamping voltage for V
is the nominal VBE for Q9
Comments
DD
CLAMP
+ V
0.06 Ω
0.10 Ω
0.6 Ω
2.1 Ω
0.15 Ω
0.56 Ω
BE
R18
2.0 Ω
/148 µA
R18
)/148 µA
R19, R20
R19, R20
7.15 k Ω
16.5 k Ω
56.2 k Ω
16.5 k Ω
121 k Ω
56.2k Ω
121 k Ω
BAT