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参数资料
| 型号： | SI9112DY-T1-E3 |
| 厂商： | Vishay Siliconix |
| 文件页数： | 3/10页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR FLYBK CUK CM 14SOIC |
| 标准包装： | 2,500 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 3MHz |
| 占空比： | 50% |
| 电源电压： | 9 V ~ 13.5 V |
| 降压： | 无 |
| 升压： | 无 |
| 回扫： | 是 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 是 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 14-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
Si9112
Vishay Siliconix
SPECIFICATIONS a
Parameter
Symbol
Test Conditions
Unless Otherwise Specified
DISCHARGE = ? V IN = 0 V
V CC = 9 V, +V IN = 12 V
R BIAS = 270 k W , R OSC = 330 k W
Temp b
Limits
D Suffix ? 40 to 85 _ C
Min d Typ c Max e
Unit
Current Limit
Threshold Voltage
Delay to Output e
V SOURCE
t d
V FB = 0 V
V SENSE = 1.5 V, See Figure 1
Room
Room
1.1
1.3
100
1.5
150
V
ns
Pre-Regulator/Start-Up
Input Voltage
Input Leakage Current
+V IN
+I IN
I IN = 10 m A
V CC w 9.4 V
Room
Room
80
10
V
m A
Pre-Regulator Start-Up Current
Pre-Regulator Dropout Voltage
I START
V CC
+V IN = 48 V
+V IN = 10 V, R LOAD = 4 k at Pin 6
Room
Room
12
V UVLO
+0.1
20
mA
V CC Pre-Regulator Turn-Off
Threshold Voltage
Undervoltage Lockout
V REG
V UVLO
I PRE-REGULATOR = 10 m A
See Detailed Description
Room
Room
8.0
7.2
8.7
8.1
9.4
8.9
V
V REG ? V UVLO
V DELTA
Room
0.3
0.6
Supply
Supply Current
Bias Current
I CC
I BIAS
C L v 75 pF (Pin 4)
Room
Room
0.6
15
1.0
mA
m A
Logic
SHUTDOWN Delay e
SHUTDOWN Pulse Width e
RESET Pulse Width e
Latching Pulse Width
SHUTDOWN and RESET Low e
Input Low Voltage
Input High Voltage
t SD
t SW
t RW
t LW
V IL
V IH
C L = 500 pF
V SENSE = ? V IN , See Figure 2
See Figure 3
Room
Room
Room
Room
Room
Room
50
50
25
7.0
50
100
2.0
ns
V
Input Current Input Voltage High
Input Current Input Voltage Low
I IH
I IL
V LOGIC = V CC
V IN = 0 V
Room
Room
? 35
1
25
5
m A
Output
Output High Voltage
Output Low Voltage
Output Resistance e
Rise Time e
Fall Time e
V OH
V OL
R OUT
t r
t f
I OUT = ? 10 mA
I OUT = 10 mA
I OUT = 10 mA, Source or Sink
C L = 500 pF
Room
Full
Room
Full
Room
Full
Room
Room
8.7
8.5
20
25
40
40
0.3
0.5
30
50
75
75
V
W
ns
Notes
a. Refer to PROCESS OPTION FLOWCHART for additional information.
b. Room = 25 _ C, Full = as determined by the operating temperature suffix.
c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
d. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum.
e. Guaranteed by design, not subject to production test.
f. C STRAY Pin 8 = v 5 pF.
sDocument Number: 70005
S-42036—Rev. H, 15-Nov-04
www.vishay.com
3
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