- 您現(xiàn)在的位置：買(mǎi)賣IC網(wǎng) > PDF目錄361303 > QPO-1-EVAL5 (Vicor Corporation) QPO-1 Evaluation Board, Mini Foot Print DC-DC Converters PDF資料下載
參數(shù)資料
| 型號(hào)： | QPO-1-EVAL5 |
| 廠商： | Vicor Corporation |
| 元件分類： | DC/DC變換器 |
| 英文描述： | QPO-1 Evaluation Board, Mini Foot Print DC-DC Converters |
| 中文描述： | QPO - 1的評(píng)估板，微型腳印的DC - DC轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 3/4頁(yè) |
| 文件大小： | 405K |
| 代理商： | QPO-1-EVAL5 |
Picor Corporation www.picorpower.com
QPO-1-EVAL1 Data Sheet Rev. 1.2
Page 3 of 4
Board Circuit Schematic
Instructions for Use
The EVAL1 board has the following components,
QPO-1, Cesr=15uF and Rp=1k Ohm already soldered
to the PCB as well as the zero-headroom start-up
assist circuit shown in the schematic above. The
remaining pads are spaced for 1206 chip size
components. If these are not available to the user,
once values are determined axial component leads
can be formed to line up with the pads and hand
soldered to the proper pads. Refer to the schematic
and mechanical drawing above for the pad locations
to connect these components.
Component values can be determined using the
formulas below. Refer to the QPO-1 product data
sheet for a complete explanation of the features
and the parameters set by these component values.
First determine the headroom resistor value.
where; Rhr = headroom setting resistor value,
QPOout = the expected voltage on the
QPO’s output,
Vhr = the target headroom voltage
determined from the product data sheet.
The RSC resistor is tied between QPOout and SC SET
pin and sets the correction current used to trim up
the converter to maintain a constant output voltage
on the QPO’s output. The value for the SC SET
resistor is calculated by the following equation:
where; RSC is the SC SET resistor value,
RIN is the resistance of the SC or
TRIM input of the converter,
VOUT is the desired QPO output voltage,
VRPT is the pre-trimmed reference of the
SC or TRIM.
IMPORTANT NOTE: When connecting the Rsc
resistor into the EVAL1 board note the pad landing
for the Rsc resistor that is adjacent to the VIA hole
that also connects to CESR’s lower pad. The resistor
must be connected/soldered to that VIA hole point
to make proper connection to the circuit and not
just to the resistor pad landing.
QPO OUT
9
8
S
2
QPO OUT
7
SC SET
6
CESR
R
5
QPO OUT
10
Q
1
V
3
G
1
SC
16
PEAK IN
15
QPO IN
14
Q
1
QPO IN
13
QPO IN
11
4
GND
19
G
2
QPO-1
RSA
RSCSET
RHR
CHR
15uF
CESR
CP
RP
1K
IRLML5103
Q1
To J1
VREF
QPO_IN
Start-up Assist Circuit
QPO_OUT
J2
QPO_IN
J7
QPO_OUT
J3
QPO_IN
J6
RSC
VREF
GND
J9
GND
J10
2K
RSU
JOHNSONJACK
(NOT STUFFED)
J11
JOHNSONJACK
J12
J1
SC
GND
J4
QPO_OUT
QPO_IN
SENSE+
51.1
RSENSE
J8
15uF
C1
100
R2
18V
DZ1
1uF
CSU
Remote Sense Circuit
R1
0 Ohm
Rhr =
QPOout
Vhr
* 2.5k
R
SC
= R
IN
* V
OUT
V
RPT
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| QPP-003 | 60W, 869-894 MHz Class AB Power Stage |
| QPP-008 | 35W, 925-960MHz Class AB Driver Stage |
| QPP-015 | QuikPAC Module Data |
| QPP-023 | QuikPAC Module Data |
| QPP-029 | QuikPAC Module Class AB Driver Stage |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| QPO-1L | 制造商:VICOR 制造商全稱:Vicor Corporation 功能描述:Output Ripple Attenuation SiP |
| QPO-1LZ | 功能描述:3-30V 10A OUT RIPPLE ATTENUATOR RoHS:是 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:Picor®, QUIETPOWER® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 濾波器類型:連續(xù)時(shí)間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
| QPO-1LZ-01 | 功能描述:IC INTERFACE FILTER RoHS:是 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:Picor®, QUIETPOWER® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 濾波器類型:連續(xù)時(shí)間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
| QPO-1Q | 制造商:VICOR 制造商全稱:Vicor Corporation 功能描述:Output Ripple Attenuation SiP |
| QPO-2EVAL1 | 制造商:VICOR 制造商全稱:Vicor Corporation 功能描述:Evaluation Board for QPO-2 Active Output Filter |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。