Block Diagram
20μs Delay
3V
OVP
OVP
TSD
100mV
OLP
FAULT
+
1μs
Delay
ADIM*4
1.4~4V
-
OCP
POR
S
R
Q
Current
Sense
640μs at 200kHz
Auto-Restart
PWM
ADIM
0.3~3V
gm
1/4
-
+
R
S
Q
Dim off
Gate
DRV
CMP
PWM
Driver
Slope
0.5V
-
+
100mV
Burst
Operation
5k
CLK+LEB
Compensation
CS
4V
Switch Off
16 Steps
Internal Soft-Start 3ms at 200kHz
0.5V
GND
Oscillator
RT
45μA
Drain
UVLO 9V
PWM
VCC
ENA
1.22V
-
+
Hys. 70mV
Hys. 1.0V
OLPi
BDIM
OLP
Dim off
Current
Sense
5μs Delay
0.2V
REF
5V, max. 3mA
Voltage Reference
& Internal Bias
40.96ms
at 200kHz
Debounce
Time
OLPi
PWM
End of Soft-Start
SEN
BDIM
Figure 1. Internal Block Diagram
? 2013 Fairchild Semiconductor Corporation
FAN7340 ? 1.0.1
2
www.f airchildsemi.com
相关PDF资料
FAN7346MX IC LED DRVR 4 CHAN BLU 28SOIC
FAN73611MX IC GATE DVR HIGH SIDE 1CH 8-SOIC
FAN7361MX IC GATE DRIVER HIGH SIDE 8SOIC
FAN7362MX IC GATE DRIVER HIGH SIDE 8SOP
FAN73711MX IC GATE DVR HIGH SIDE 8-SOP
FAN7371MX IC DRIVER GATE HIGH SIDE 8SOP
FAN7380MX IC DRIVER GATE HALF BRIDGE 8SOIC
FAN7382M1X IC GATE DRIVER HI/LO SIDE 14-SOP
相关代理商/技术参数
FAN7340MX-CUT TAPE 制造商:FAIRCHILD 功能描述:FAN7340 Series 35 V 250 mA LED Backlight Driving Boost Switch - SOIC-16
FAN7346 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:4 通道LED均流控制器
FAN7346M 功能描述:电流型 PWM 控制器 4Ch. LED Current control IC Lighting 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
FAN7346MX 功能描述:LED照明驱动器 4Ch LED Curr Control IC for Lighting RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
FAN7346MX-CUT TAPE 制造商:FAIRCHILD 功能描述:FAN7346 Series 4 Channel LED Driver String Balancer w/ Dimming LED Load Control
FAN7361 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:High-Side Gate Driver
FAN7361_07 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:High-Side Gate Driver
FAN7361_09 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:High-Side Gate Driver