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參數(shù)資料
| 型號： | SI9121DB-3 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | High-Voltage, Non-Isolated Buck-Boost Converter for ISDN Digital Phones |
| 中文描述： | 高電壓，非隔離的Buck - Boost對ISDN數(shù)字電話交換器 |
| 文件頁數(shù)： | 3/9頁 |
| 文件大小： | 109K |
| 代理商： | SI9121DB-3 |
Si9121
Vishay Siliconix
Document Number: 71112
S-40708—Rev. C, 19-Apr-04
www.vishay.com
3
SPECIFICATIONS
a
(All
Voltages Are With Respect To V
NEG
Unless Otherwise Specified)
Test Conditions (Internally Regulated)
Unless Otherwise Specified
Parameter
Symbol
V
NEG
=
10 to
60 V
Limits
40 to 85 C
Typ
d
Temp
b
Min
c
Max
c
Unit
Supply
Supply Current
(Internally Regulater)
I
GND
GND to V
NEG
Full
1.2
1.5
Supply Current
(External V
CC
Applied)
V
OUT
supply Current
Start-Up Current
I
CC
V
CC
to V
NEG
+10 V; V
NEG
>
20 V
Full
1.5
2.0
mA
I
OUT
I
START
V
OUT
to V
NEG
V
CC
= 0 V
Full
0.2
0.3
Full
5
30
Thermal Shutdown
Thermal Shutdown Temperature
T
OTP
T
HYS
170
C
Thermal Hysteresis
25
Efficiency
Efficiency
400 mA Output V
= 48 V
400-mA Output, V
NEG
+5 V
Room
77
%
+3.3 V
Room
73
Notes
a.
b.
c.
d.
Refer to PROCESS OPTION FLOWCHART for additional information.
Room = 25 C, Full = as determined by the operating temperature suffix.
The algebraic convention whereby the most negative value is a minimum and the most positive a maximum.
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
DETAILED BLOCK DIAGRAM
BYPASS
R1*
R2*
V
OUT
+
V
1.25 V
+
0.6 V
+
PWM
+
0.67 V
OSC
R
S
Q
L
X
CS
V
IN
Bias/
Reference
Circuit
V
NEG
+
V
CC
+
0.6-V Hysteresis
50% Max.
Duty Cycle
Low Side
Error Amp
+
8.5 V
*R1 and R2 are internal voltage setting resistors used to set
output voltage to fixed 3.3 V or 5 V.
5
3
2
7
8
1
GND
6
OCL
OTP
COMP
4
+
3.5 V
+
1.5 V
H
L
10 A
V
CC
2 A
V
NEG
Soft Start
Hiccup Discharge Mode
相關PDF資料 |
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| SI9121DB-5 | High-Voltage, Non-Isolated Buck-Boost Converter for ISDN Digital Phones |
| SI9121DY-3 | High-Voltage, Non-Isolated Buck-Boost Converter for ISDN Digital Phones |
| SI9121DY-3-T1 | High-Voltage, Non-Isolated Buck-Boost Converter for ISDN Digital Phones |
| SI9121DY-3-T1-E3 | High-Voltage, Non-Isolated Buck-Boost Converter for ISDN Digital Phones |
| SI9121DY-5 | High-Voltage, Non-Isolated Buck-Boost Converter for ISDN Digital Phones |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SI9121DB-5 | 功能描述:電源管理IC開發(fā)工具 SI9121 Demo Board 5V RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| SI9121DY-3 | 功能描述:直流/直流開關轉(zhuǎn)換器 HV 3.3V Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| SI9121DY-3-E3 | 功能描述:開關變換器、穩(wěn)壓器與控制器 Hi-V Buck/Boost 3V Converter RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| SI9121DY-3-T1 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:High-Voltage, Non-Isolated Buck-Boost Converter for ISDN Digital Phones |
| SI9121DY-3-T1-E3 | 功能描述:開關變換器、穩(wěn)壓器與控制器 Hi-V Buck/Boost 3V Converter RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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