参数资料
型号: SI9112DY-T1-E3
厂商: Vishay Siliconix
文件页数: 2/10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:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
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
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced to ? V IN (V CC < +V IN + 0.3 V)
V CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 V
+V IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 V
Logic Inputs
(RESET, SHUTDOWN, OSC IN) . . . . . . . . . . . . . . . . . ? 0.3 V to V CC + 0.3 V
Linear Inputs (FEEDBACK, SENSE) . . . . . . . . . . . . . . ? 0.3 V to V CC + 0.3 V
HV Pre-Regulator Input Current (continuous) . . . . . . . . . . . . . . . . . . . . 25 mA
(Power Dissipation Limited)
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ? 65 to 150 _ C
Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ? 40 to 85 _ C
Junction Temperature (T J ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 _ C
Power Dissipation (Package)a
14-Pin Plastic DIP (J Suffix) b . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 750 mW
14-Pin SOIC (Y Suffix) c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 900 mW
Thermal Impedance ( Q JA )
14-Pin Plastic DIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 _ C/W
14-Pin SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 _ C/W
Notes
a. Device mounted with all leads soldered or welded to PC board.
b. Derate 6 mW/ _ C above 25 _ C.
c. Derate 7.2 mW/ _ C above 25 _ C.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation
of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING RANGE
Voltages Referenced to ? V IN
V CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 V to 13.5 V
+V IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 V to 80 V
f OSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 kHz to 1 MHz
SPECIFICATIONS a
R OSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 k W to 1 M W
Linear Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to V CC ? 3 V
Digital Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to V CC
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
Reference
Output Voltage
Output Impedance e
Short Circuit Current
Stability e
Temperature
V R
Z OUT
I SREF
T REF
OSC IN = ? V IN (OSC Disabled)
R L = 10 M W
V REF = ? V IN
Room
Full e
Room
Room
Full
3.88
3.82
15
70
4.0
30
100
0.5
4.12
4.14
45
130
1.0
V
k W
m A
mV/ _ C
Oscillator
Maximum Frequency e
f MAX
R OSC = 0
Room
1
3
MHz
Initial Accuracy
Voltage Stability
Temperature Coefficient e
f OSC
D f/f
T OSC
R OSC = 330 k, See Note f
R OSC = 150 k, See Note f
D f/f = f(13.5 V) ? f(9.5 V) / f(9.5 V)
Room
Room
Room
Full
80
160
100
200
9
200
120
240
15
500
kHz
%
ppm/ _ C
Error Amplifier
Feedback Input Voltage
Input Offset Voltage
Input BIAS Current
Open Loop Voltage Gain e
V FB
V OS
I FB
A VOL
FB Tied to COMP
OSC IN = ? V IN (OSC Disabled)
OSC IN = ? V IN (OSC Disabled)
OSC IN = ? V IN , V FB = 4 V
OSC IN = ? V IN
Room
Room
Room
Room
3.92
60
4.00
" 15
25
80
4.08
" 40
500
V
mV
nA
dB
Unity Gain
Bandwidth e
BW
OSC IN = ? V IN (OSC Disabled)
Room
1
1.5
MHz
Dynamic Output Impedance e
Z OUT
Error Amp Configured for 60 dB gain
Room
1000
2000
W
Output Current
Power Supply Rejection e
I OUT
PSRR
Source V FB = 3.4 V
Sink V FB = 4.5 V
9 V v V CC v 13.5 V
Room
Room
Room
0.12
50
? 2.0
0.15
70
? 1.4
mA
dB
www.vishay.com
2
sDocument Number: 70005
S-42036—Rev. H, 15-Nov-04
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