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BD550FHG-TR PDF预览

BD550FHG-TR

更新时间: 2024-11-04 01:20:55
品牌 Logo 应用领域
罗姆 - ROHM /
页数 文件大小 规格书
21页 919K
描述
AC/DC Controller IC for non-dimmable LED lighting

BD550FHG-TR 数据手册

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Datasheet  
AC/DC Drivers  
AC/DC Controller IC  
for non-dimmable LED lighting  
BD550FHG  
General Description  
Key Specifications  
LED driver BD550FHG supports both isolated and  
non-isolated devices. IC enables simple design of  
low-power electrical converters.  
With switching MOSFET and current detection resistor  
as external devices, it enables more freedom in design.  
Since the peak current control is utilized, peak current  
is controlled in each cycle, application excels wide  
bandwidth and transient response.  
Power Supply Voltage range:  
8.5V to 25.0V  
Operating Current:  
Normal:  
Burst:  
0.60mA (Typ)  
0.40mA (Typ)  
65kHz (Typ)  
-40°C to +110°C  
Oscillation Frequency:  
Operating Temperature range:  
Package  
W(Typ) x D (Typ) x H (Max)  
2.90mm x 2.80mm x1.25mm  
SSOP6  
BD550FHG includes various protective functions such  
as soft start function, burst function, per-cycle over  
current limiter, VCC overvoltage protection and  
overload protection.  
An external latch pin (COMP pin) is provided, so that  
latch stopping (OFF) can be set by external signals.  
This function is available as overheating protection and  
over output voltage protection.  
The PWM switching frequency is fixed at 65 kHz.  
A frequency hopping function is included which contributes  
to low EMI.  
Features  
PWM frequency of 65kHz  
PWM current mode method  
Low circuit current when UVLO is ON  
(12μA at VCC=12V)  
Low circuit current without load  
(Burst operation when load is light)  
Applications  
Electrical machineries for LED lighting  
Built-in SW frequency hopping function  
250nsec leading-edge blanking  
VCC UVLO / OVP  
Per-cycle over current protection circuit  
Soft start  
Output overload protection (Self-restart protection)  
External latch function for COMP pin  
(Over heating protection function)  
Typical Application Circuit  
Figure 1, Application Diagram (Non-Isolated Type)  
Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays  
.www.rohm.com  
TSZ02201-0F1F0C300020-1-2  
2013.07.25 Rev.001  
© 2013 ROHM Co., Ltd. All rights reserved.  
1/17  
TSZ2211114001  

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