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参数资料
| 型号： | SG6846BLSY |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 6/15页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PWM PROG GREEN OVP 8SOP |
| 标准包装： | 2,500 |
| 输出隔离： | 隔离 |
| 频率范围： | 44.8 ~ 136kHz |
| 输入电压： | 10.5 V ~ 30 V |
| 输出电压： | 18V |
| 功率（瓦特）： | 400mW |
| 工作温度： | -40°C ~ 150°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 带卷 (TR) |
Electrical Characteristics
V DD = 15V and T A = 25°C unless otherwise noted.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
V DD Section
V DD-OP
Continuously Operating Voltage
20
V
V DD-ON
V DD-OFF
Turn-on Threshold Voltage
Turn-off Voltage
15.5
9.5
16.5
10.5
17.5
11.5
V
V
V DD-SCP
Threshold Voltage on V DD for Short-Circuit
Protection
V DD-OFF V DD-OFF V DD-OFF
+0.5V +1.0V +1.5V
V
V DD-LH
I DD-ST
I DD-OP
V DD-OVP
t D-VDDOVP
Threshold Voltage for Latch-off Release
Startup Current
Operating Supply Current
V DD Over-Voltage Protection (Latch off)
V DD OVP Debounce Time
V DD-ON – 0.16V
GATE Open
R I = 26k ?
3
23
4
8
3.7
24
150
5
30
5.0
25
V
μA
mA
V
μs
I DD-OVP
V DD OVP Latch-off Holding Current
V DD = 5V
30
50
70
μA
V IN Section
V IN-OFF
V IN-ON
PWM Turn-off Threshold Voltage
PWM Turn-on Threshold Voltage
0.65
V IN-OFF
+0.18
0.70
V IN-OFF
+0.20
0.75
V IN-OFF
+0.22
V
V
Feedback Input Section
A V
Z FB
V FBO
Input-Voltage to Current-Sense Attenuation
Input Impedance
FB Pin Open Voltage
1/3.5
4.0
5.2
1/4.0
5.5
6.2
1/4.5
7.0
6.6
V/V
k ?
V
Current Sense Section
Z SENSE
Input Impedance
12
k ?
t PD
Delay to Output
100
250
ns
t LEB
Leading-edge Blanking Time
270
360
ns
V SLOPE
V STH1V
V STH3V
V STH1V-2/3
V STH3V-2/3
t D-OCP
t D-Short
t SS-65KHz
t SS-130KHz
Slope Compensation
Threshold Voltage for Current Limit
Threshold Voltage for Current Limit
OCP Threshold Voltage for Current Limit
OCP Threshold Voltage for Current Limit
Delay Time for Over-Current Protection
Output Short Circuit Protection delay time
Period During Soft Start Time
Duty = DCY MAX
V IN = 1V
V IN = 3V
V IN = 1V
V IN = 3V
R I = 26k ?
V CS > V STH , R I = 26k ? ,
V DD < V DD-SCP
R I = 26k ?
R I = 13k ?
0.30
0.80
0.67
0.58
0.48
175
6
4.5
2.25
0.33
0.83
0.70
0.61
0.51
200
7
5.0
2.50
0.36
0.86
0.73
0.64
0.54
225
8
5.5
2.75
V
V
V
V
V
ms
ms
ms
ms
Continued on following page…
? 2008 Fairchild Semiconductor Corporation
SG6846B ? Rev. 1.3.4
6
www.fairchildsemi.com
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| SG6846BLSZ | 功能描述:电流型 PWM 控制器 Highly-Integrated Green-Mode PWM RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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| SG6846CD | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Highly-Integrated Green-Mode PWM Controller |
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