參數(shù)資料
型號(hào)： SI9122A
廠商： Vishay Intertechnology,Inc.
英文描述： 500-kHz Half-Bridge DC/DC Controller With Integrated Secondary Synchronous Rectification Drivers
中文描述： 500千赫半橋DC / DC變換器與集成的次級(jí)同步整流驅(qū)動(dòng)器控制器
文件頁(yè)數(shù)： 7/15頁(yè)
文件大小： 241K
代理商： SI9122A
Si9122A
Vishay Siliconix
Document Number: 73492
S–51921—Rev. A, 12-Sep-05
www.vishay.com
7
20
19
18
17
1
2
3
4
16
15
14
13
5
6
7
8
V
IN
BST
REG_COMP
D
H
L
X
D
L
PGND
V
CC
V
REF
GND
R
OSC
EP
SR
H
SR
L
SS
V
INDET
CS1
Si9122ADQ (TSSOP-20)
Top View
12
11
9
10
BBM
CS2
C
L_CONT
Si9122ADLP (MLP65-20)
Top View
BST
D
H
L
X
D
L
PGND
SR
H
SR
L
SS
BBM
C
L_CONT
V
IN
REG_COMP
V
CC
V
REF
GND
R
OSC
EP
V
INDET
CS1
CS2
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
Part Number
Temperature Range
Package
Si9122ADQ–T1–E3
–40 to 85 C
TSSOP-20
Si9122ADLP–T1–E3
MLP65-20
Eval Board
Temperature Range
Board Type
Contact Factory
–10 to 70 C
Surface Mount and
Thru-Hole
Pin Number
Name
Function
1
V
IN
Input supply voltage for the start-up circuit.
2
REG_COMP
Control signal for an external pass transistor.
3
V
CC
V
REF
GND
Supply voltage for internal circuitry
4
3.3-V reference
5
Ground
6
R
OSC
EP
External resistor connection to oscillator
7
Voltage control input
8
V
INDET
V
under voltage detect and shutdown function input. Shuts down or disables switching when V
INDET
falls below
preset threshold voltages and provides the feed forward voltage.
9
CS1
Current limit amplifier negative input
10
CS2
Current limit amplifier positive input
11
C
L_CONT
BBM
Current limit compensation
12
Programmable Break-Before-Make time connection to an external resistor to set time delay
13
SS
Soft-Start control – external capacitor connection
14
SR
L
SR
H
PGND
Signal transformer drive, sequenced with the primary side.
15
Signal transformer drive, sequenced with the primary side.
16
Power ground.
17
D
L
L
X
D
H
BST
Low-side gate drive signal – primary
18
High-side source and transformer connection node
19
High-side gate drive signal – primary
20
Bootstrap voltage to drive the high-side n-channel MOSFET switch
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SI9122A_08 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification Drivers
SI9122ADLP-T1-E3 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 500kHz DC/DC Controller 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(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
SI9122ADQ-T1-E3 功能描述:DC/DC 開關(guān)控制器 500kHz DC/DC Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
SI9122DLP-T1-E3 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 500kHz DC/DC Controller 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(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
SI9122DQ 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 500kHz DC/DC Controller 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(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
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