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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)： | 5/15頁(yè) |
| 文件大?。?/td> | 241K |
| 代理商： | SI9122A |
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Si9122A
Vishay Siliconix
Document Number: 73492
S–51921—Rev. A, 12-Sep-05
www.vishay.com
5
Limits
–40 to 85 C
Unless Otherwise Specified
V
INDET
= 7.5 V; 10.5 V
V
CC
13.2 V
Parameter
Unit
Max
b
Typ
c
Min
b
Test Conditions
f
NOM
= 500 kHz, V
IN
= 75 V
Symbol
Output MOSFET DH Driver (High-Side)
Output High Voltage
V
OH
V
OL
I
BST
I
LX
Sourcing 10 mA
V
BST
– 0.3
V
Output Low Voltage
Boost Current
L
X
Current
Peak Output Source
Peak Output Sink
Rise Time
Fall Time
Output MOSFET DLDriver (Low-Side)
Sinking 10 mA
V
LX
+ 0.3
2.7
–0.4
–0.75
V
LX
= 75 V, V
BST
= V
LX
+ V
CC
V
LX
= 75 V, V
BST
= V
LX
+ V
CC
1.3
–1.1
1.9
–0.7
–1.0
1.0
35
35
mA
I
SOURCE
I
SINK
t
r
t
f
= 10 5 V
V
CC
= 10.5 V
A
0.75
C
DH
= 3 nF
ns
Output High Voltage
V
OH
V
OL
Sourcing 10 mA
V
CC
– 0.3
V
Output Low Voltage
Peak Output Source
Peak Output Sink
Rise Time
Fall Time
Synchronous Rectifier (SRH, SRL) Drivers
Sinking 10 mA
0.3
–0.75
I
SOURCE
I
SINK
t
r
t
f
= 10 5 V
V
CC
= 10.5 V
–1.0
1.0
35
35
A
0.75
C
DL
= 3 nF
ns
Output High Voltage
V
OH
V
OL
t
BBM1
t
BBM2
t
BBM3
t
BBM4
I
SOURCE
I
SINK
t
r
t
f
Sourcing 10 mA
V
CC
– 0.4
V
Output Low Voltage
Sinking 10 mA
0.4
= 25 C R
T
A
= 25 C, R
BBM
= 33 k ,
See Figure 3
55
40
35
55
–100
100
35
35
Break Before Make Time
Break-Before-Make Time
f
ns
= 25 C R
T
A
= 25 C,R
BBM
= 33 k , L
= 75 V
X
Peak Output Source
Peak Output Sink
Rise Time
Fall Time
Voltage Mode
= 10 5 V
V
CC
= 10.5 V
mA
= 0 3 nF
C
SRH
= C
SRL
= 0.3 nF
ns
Error Amplifier
t
d1DH
t
d2DL
Input to high-side switch off
200
ns
Input to low-side switch off
200
Current Mode
Current Amplifier
t
d3DH
t
d4DL
Input to high-side switch off
200
ns
Input to low-side switch off
200
Notes
a.
b.
c.
d.
e.
f.
g.
h.
Refer to PROCESS OPTION FLOWCHART for additional information.
The algebraic convention whereby the most negative value is a minimum and the most positive a maximum (–40 to 85 C).
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
F
when V
at clamp level. Typical foldback frequency change +20%, –30% over temperature.
Measured on SRL or SRH outputs.
See Figure 3 for Break-Before-Make time definition.
V
tracks V
by a diode drop
Guaranteed by design and characterization, not tested in production.
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| SI9122A_08 | 制造商:VISHAY 制造商全稱(chēng):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(kāi)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(kāi)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(kāi)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(kāi)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(kāi)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(kāi)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(kāi)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(kāi)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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