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参数资料
| 型号： | SG6742HLSY |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 6/13页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PWM PROG GREEN CM 8SOP |
| 标准包装： | 2,500 |
| 输出隔离： | 隔离 |
| 频率范围： | 90kHz ~ 110kHz |
| 输入电压： | 10.5 V ~ 22 V |
| 输出电压： | 18V |
| 功率（瓦特）： | 400mW |
| 工作温度： | -40°C ~ 105°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOP |
| 包装： | 带卷 (TR) |
Electrical Characteristics (Continued)
V DD =15V and T A =25 ° C unless otherwise noted.
Symbol
Parameter
Conditions
Min.
Typ.
Max. Units
Feedback Input Section
A V
Input Voltage to Current-Sense Attenuation
1/4.15
1/4.00
1/3.85
V/V
Z FB
V FB-OPEN
Input Impedance
Output High Voltage
FB Pin Open
4
5.2
7
k ?
V
V FB-OLP
t D-OLP
V FB-N
V FB-G
V FB-ZDC
FB Open-Loop Trigger Level
Delay Time of FB Pin Open-loop Protection
Green-Mode Entry FB Voltage
Green-Mode Ending FB Voltage
Zero Duty-Cycle Input Voltage
4.6
50
3.1
4.8
56
3.3
V FB-N -
0.5
1.6
5.0
62
3.5
V
ms
V
V
V
Current-Sense Section
Z SENSE
Input Impedance
12
K ?
V STHFL
V STHVA
t PD
Current Limit Flatten Threshold Voltage
Current Limit Valley Threshold Voltage
Delay to Output
Duty cycle=45%
V STHFL –V STHVA
0.97
0.27
1.00
0.30
100
1.03
0.33
200
V
V
ns
t LEB
V S-SCP
Leading-Edge Blanking Time
Threshold Voltage for SENSE Short-Circuit Protection
100
0.10
140
0.15
180
0.20
ns
V
t D-SSCP
t SS
Delay Time for SENSE Short-Circuit
Protection
Period During Soft-Startup Time
V SENSE <0.15V
Startup Time
100
5
150
6
200
7
μs
ms
GATE Section
DCY MAX
Maximum Duty Cycle
60
65
70
%
V GATE-L
V GATE-H
Gate Low Voltage
Gate High Voltage
V DD =15V, I O =50mA
V DD =12V, I O =50mA
8
1.5
V
V
t r
t f
I GATE-
SOURCE
Gate Rising Time
Gate Falling Time
Gate Source Current
V DD =15V, C L =1nF
V DD =15V, C L =1nF
V DD =15V, GATE=6V
150
30
250
250
50
350
90
ns
ns
mA
I GATE-SINK Gate Sink Current
V DD =15V, GATE=1V
300
mA
V GATE-
CLAMP
Gate Output Clamping Voltage
V DD =22V
18
V
RT Section
R RT
Internal Resistor from RT Pin
10.08
10.50
10.92
K ?
V RTTH1
V RTTH2
t D-OTP1
t D-OTP2
Over-Temperature Protection Threshold
Voltage
Over-Temperature Latch-off Debounce
0.7V ＜ V RT ＜ 1.05V,
After 12ms Latch Off
V RT ＜ 0.7V, After
100μs Latch Off
V RTTH2 ＜ V RT ＜ V RTTH1
V RT < V RTTH2
1.015
0.65
16
90
1.050
0.70
20
130
1.085
0.75
24
170
V
V
ms
μs
Over-Temperature Protection Section (OTP)
T OTP
Protection Junction Temperature
(3)
+135
°C
T Restart
Restart Junction Temperature
(4)
T OTP -25
°C
Notes :
3. When activated, the output is disabled and the latch is turned off.
4. The threshold temperature for enabling the output again and resetting the latch after OTP has been activated.
? 2008 Fairchild Semiconductor Corporation
SG6742HL/HR ? Rev. 1.0.4
6
www.fairchildsemi.com
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| SG6742HLSZ | 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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| SG6742HR_HL | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Highly Integrated Green-Mode PWM Controller |
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