參數(shù)資料
型號： 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同步整流驅動器控制器
文件頁數(shù)： 4/15頁
文件大小： 241K
代理商： SI9122A
Si9122A
Vishay Siliconix
www.vishay.com
4
Document Number: 73492
S–51921—Rev. A, 12-Sep-05
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
Current Sense Amplifier
dV
CS
= 0
dV
CS
= 100 mV
dV
CS
= 170 mV
I
PD
= I
– I
= 0
See Figure 6
120
0
A
CL_CONT Current
I
CL_CONT
2
mA
Lower Current Limit Threshold
V
TLCL
100
Upper Current Limit Threshold
V
THCL
I
PD
I
PU
I
PU
= 500 A
2 mA
150
mV
Hysteresis
500 A
–50
CL_CONT Clamp Level
PWM Operation
C
L_CONT(min)
0.6
1.5
V
D
MAX
f
OSC
= 500 kHz
V
EP
= 0 V
V
EP
= 1.75 V
150 mV
90
92
95
Duty Cycle
e
D
MIN
15
%
V
CS2
– V
CS1
3
Pre-Regulator
Input Voltage
+V
IN
I
LKG
I
REG1
I
REG2
I
SOURCE
I
SINK
I
START
I
IN
= 10 A
28
75
V
Input Leakage Current
V
IN
= 75 V, V
CC
V
IN
= 75 V, V
INDET
V
IN
= 75 V, V
INDET
V
REG
V
SD
V
REF
10
A
Regulator Bias Current
86
200
8
14
mA
Regulator Comp
Regulator_Comp
V
CC
= 12 V
–29
50
–19
82
–9
110
A
Pre-Regulator Drive Capacility
V
CC
V
REG
20
mA
V
P
Threshold Voltage
R
l t
T
Off
V
REG1
V
INDET
V
REF
7.4
8.5
9.1
9.1
9.2
8.8
8.8
0.5
10.4
9.7
T
A
= 25 C
V
REG2
V
INDET
= 0 V
V
Undervoltage Lockout
V
UVLO
V
CC
Rising
7.15
8.1
9.8
9.3
T
A
= 25 C
V
UVLO
Hysteresis
g
Soft-Start
V
UVLOHYS
Soft-Start Current Output
I
SS
Start-Up Condition
12
20
28
A
Soft-Start Completion Voltage
Shutdown
V
SS_COMP
Normal Operation
7.35
8.05
8.85
V
V
INDET
Shutdown
V
SD
Hysteresis
V
INDET
Input Threshold Voltages
V
SD
V
INDET
Rising
V
INDET
350
550
720
mV
200
V
INDET
– V
IN
Under Voltage
V
UW
Hysteresis
Over Temperature Protection
V
UV
V
INDET
Rising
V
INDET
3.13
3.3
3.46
V
0.3
Activating Temperature
T
J
Increasing
T
J
Decreasing
160
C
De-Activating Temperature
Converter Supply Current (V
CC
)
130
Shutdown
I
CC1
I
CC2
I
CC3
Shutdown, V
INDET
= 0 V
V
INDET
V
INDET
V
REF
, f
NOM
= 500 kHz
V
CC
= 12 V, C
DH
= C
= 3 nF
C
SRH
=
C
SRL
= 0.3 nF
50
350
A
Switching Disabled
V
REF
4
8
12
Switching w/o Load
5
10
15
mA
Switching with C
LOAD
I
CC4
21
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相關代理商/技術參數(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
SI9122ADQ-T1-E3 功能描述:DC/DC 開關控制器 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 安裝風格: 封裝 / 箱體:CPAK
SI9122DLP-T1-E3 功能描述:開關變換器、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
SI9122DQ 功能描述:開關變換器、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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