参数资料
型号: SG6846BLSZ
厂商: Fairchild Semiconductor
文件页数: 10/15页
文件大小: 0K
描述: IC CTRLR PWM OVP OTP OCP 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)
Typical Performance Characteristics (Continued)
64.0
Normal PWM Frequency (f OSC ) vs Temperature
8 7.2
Maximum Duty Cycle (DCYmax) vs Temperature
8 7.0
63.5
8 6.8
63.0
8 6.6
62.5
8 6.4
62.0
-40
-25
-10
5
20
35
50
65
80
95
110
125
8 6.2
Temperature ( ℃ )
-4 0
-2 5
-10
5
20 35 50 65
Temperature ( ℃ )
80
95
110
12 5
70.8
70.6
70.4
70.2
70.0
69.8
Figure 13. Normal PWM Frequency (f OSC )
vs. Temperature
Output Current of RT Pin (I R T ) vs Temperature
1.10
1.08
1.06
1.04
1.02
1.00
Figure 14. Maximum Duty Cycle (D CYmax )
vs. Temperature
Trigger Voltage of OTP (V R TT H ) vs Temperature
-40
-25
-10
5
20
35
50
65
80
95
110
125
-40
-25
-10
5
20
35
50
65
80
95
110
125
0.925
0.920
Temperature ( ℃ )
Figure 15. Output Current of RT pin (I RT )
vs. Temperature
PW M Turn-on Threshold Voltage (V IN-ON ) vs Temperature
0 .7 1 5
0 .7 1 0
Temperature ( ℃ )
Figure 16. Trigger Voltage of OTP(V RTTH )
vs. Temperature
PW M Turn-off Threshold Voltage (V IN-OFF ) vs Temperature
0 .7 0 5
0.915
0 .7 0 0
0.910
0 .6 9 5
0.905
0 .6 9 0
-40
-25
-10
5
20
35
50
65
80
95
1 10
125
-4 0
-2 5
-1 0
5
20
35
50
65
80
95
110
125
Temperature ( ℃ )
Figure 17. PWM Turn-on Threshold Voltage (V IN-ON )
vs. Temperature
? 2008 Fairchild Semiconductor Corporation
SG6846B ? Rev. 1.3.4
10
Temperature ( ℃ )
Figure 18. PWM Turn-off Threshold Voltage (V IN-OFF )
vs. Temperature
www.fairchildsemi.com
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