- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄15832 > SI3216MPPT1-EVB (Silicon Laboratories Inc)BOARD EVAL W/SI3201 INTERFACE PDF資料下載
參數(shù)資料
| 型號(hào)： | SI3216MPPT1-EVB |
| 廠商： | Silicon Laboratories Inc |
| 文件頁(yè)數(shù)： | 51/122頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL W/SI3201 INTERFACE |
| 標(biāo)準(zhǔn)包裝： | 1 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)當(dāng)前第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)
Si3216
34
Rev. 1.0
Not
Recommended
fo
r N
ew
D
esi
gn
s
power supply (number of REN supported).
For this solution, an n-channel power MOSFET (M1)
switches the current flow through a power transformer
T1. T1 is specified in “AN45: Design Guide for the
Si3210/15/16 DC-DC Converter” and includes several
taps on the primary side to facilitate a wide range of
input voltages. The “M” version of the ProSLIC must be
used for the application circuit depicted in Figure 14 on
page 24 because the DCFF pin is used to drive M1
directly and, therefore, must be the same polarity as
DCDRV. DCDRV is not used in this circuit option;
connecting
DCFF
and
DCDRV
together
is
not
recommended.
2.2.4. DC-DC Converter Architecture
The control logic for a pulse-width modulated (PWM)
dc-dc converter is incorporated in the ProSLIC. Output
pins DCDRV and DCFF are used to switch a bipolar
transistor or MOSFET. The polarity of DCFF is opposite
that of DCDRV.
The dc-dc converter circuit is powered on when the
DCOF bit in the powerdown register (direct Register 14,
bit 4) is cleared to 0. The switching regulator circuit
within the ProSLIC is a high-performance, pulse-width
modulation controller. The control pins are driven by the
PWM controller logic in the ProSLIC. The regulated
output voltage (VBAT) is sensed by the SVBAT pin and
used to detect whether the output voltage is above or
below an internal reference for the desired battery
voltage. The dc monitor pins SDCH and SDCL monitor
input current and voltage to the dc-dc converter external
circuitry. If an overload condition is detected, the PWM
controller will turn off the switching transistor for the
remainder of a PWM period to prevent damage to
external components. It is important that the proper
value of R18 be selected to ensure safe operation.
Guidance is given in “AN45: Design Guide for the
Si3210/15/16 DC-DC Converter”.
The PWM controller operates at a frequency set by the
dc-dc Converter PWM register (direct Register 92).
During a PWM period the outputs of the control pins
DCDRV and DCFF are asserted for a time given by the
read-only
PWM
Pulse
Width
register
(direct
Register 94).
The dc-dc converter must be off for some time in each
cycle to allow the inductor or transformer to transfer its
stored energy to the output capacitor, C9. This minimum
off time can be set through the dc-dc Converter
Switching Delay register, (direct Register 93). The
number of 16.384 MHz clock cycles that the controller is
off is equal to DCTOF (bits 0 through 4) plus 4. If the dc
monitor pins detect an overload condition, the dc-dc
converter interrupts its conversion cycles regardless of
the register settings to prevent component damage.
These inputs should be calibrated by writing the DCCAL
bit (bit 7) of the dc-dc Converter Switching Delay
register, direct Register 93, after the dc-dc converter
has been turned on.
Because the ProSLIC dynamically regulates its own
battery supply voltage using the dc-dc converter
controller, the battery voltage (VBAT) is offset from the
negative-most terminal by a programmable voltage
(VOV) to allow voltage headroom for carrying audio
signals.
As mentioned previously, the ProSLIC dynamically
adjusts VBAT to suit the particular circuit requirement. To
illustrate this, the behavior of VBAT in the Active state is
shown in Figure 19. In the Active state, the TIP-to-RING
open circuit voltage is kept at VOC in the constant
voltage region while the regulator output voltage,
VBAT =VCM + VOC + VOV.
When the loop current attempts to exceed ILIM, the dc
line driver circuit enters constant current mode allowing
the TIP to RING voltage to track RLOOP. As the TIP
terminal is kept at a constant voltage, it is the RING
terminal voltage that tracks RLOOP and, as a result, the
|VBAT| voltage will also track RLOOP. In this state,
|VBAT|= ILIM x RLOOP + VCM + VOV. As RLOOP
decreases below the VOC/ILIM mark, the regulator
output
voltage
can
continue
to
track
RLOOP
(TRACK = 1), or the RLOOP tracking mechanism is
stopped
when
|VBAT|=|VBATL| (TRACK = 0). The
former case is the more common application and
provides the maximum power dissipation savings. In
principle, the regulator output voltage can go as low as
|VBAT|= VCM+ VOV, offering significant power savings.
When TRACK = 0, |VBAT| does not decrease below
VBATL. The RING terminal voltage, however, continues
to decrease with decreasing RLOOP. The power
dissipation on the NPN bipolar transistor driving the
RING terminal can become large and may require a
higher power rating device. The non-tracking mode of
operation is required by specific terminal equipment
which, in order to initiate certain data transmission
modes, goes briefly on-hook to measure the line voltage
to determine whether there is any other off-hook
terminal equipment on the same line. TRACK = 0 mode
is desired since the regulator output voltage has long
settling time constants (tens of milliseconds) and cannot
change rapidly for TRACK = 1 mode. Therefore, the
brief
on-hook
voltage
measurement
would
yield
approximately the same voltage as the off-hook line
voltage and would cause the terminal equipment to
incorrectly sense another off-hook terminal.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 1838244-1 | CONN FMALE M12 3POS STR 2M CABLE |
| MAX6439UTFGYD7+T | IC BATTERY MON SNGL SOT23-6 |
| MCP130-300FI/TO | IC SUPERV 5K PULL-UP LOW TO-92 |
| GBM36DRUS | CONN EDGECARD 72POS DIP .156 SLD |
| MCP130-270HI/TO | IC SUPERV 5K PULL-UP LOW TO-92 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI3216MPPTX-EVB | 功能描述:BOARD EVAL W/DISCRETE INTERFACE RoHS:否 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 過(guò)時(shí)/停產(chǎn)零件編號(hào) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 傳感器類(lèi)型:CMOS 成像，彩色（RGB） 傳感范圍:WVGA 接口:I²C 靈敏度:60 fps 電源電壓:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相關(guān)產(chǎn)品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
| SI3216PPQ1-EVB | 功能描述:音頻 IC 開(kāi)發(fā)工具 Si3216 QFN Eval Board RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類(lèi)型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| SI3216PPQX-EVB | 功能描述:音頻 IC 開(kāi)發(fā)工具 Si3216 QFN Eval Board RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類(lèi)型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| SI32170-B-FM1 | 制造商:Silicon Laboratories Inc 功能描述:IC PROSLIC FXS 1CH -136V 42LGA |
| SI32170-B-FM1R | 制造商:Silicon Laboratories Inc 功能描述:FXS WITH DC-DC CONTROLLER (-136V MAX. BATTERY), DTMF DETECTI - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:IC PROSLIC FXS 1CH -136V 42LGA |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。