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PDF BM520Q15F Data sheet ( Hoja de datos )
| Número de pieza | BM520Q15F | |
| Descripción | AC/DC Controller IC | |
| Fabricantes | ROHM Semiconductor | |
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Datasheet
AC/DC Drivers
AC/DC Controller IC for LED Lighting
Included 650V MOSFET
BM520Q15F
● General Description
The AC/DC quasi-resonant controller type LED
driver IC BM520Q15F can be applied to a non-isolated
application, making the designs for various types of
low power converter easy.
The low power consumption and high-speed start
are achieved through the start-up circuit with 650V
withstand voltage.
Due to the quasi-resonant mode, soft switching is
achieved. The EMI is also improved by the alterable
operating frequency. A power supply design with a high
degree of freedom can also be achieved by the
external current setting resistance.
A low-cost application can be achieved with the
built-in MOSFET with 650V withstand voltage. It also
makes the application design easy.
●Features
Quasi-resonant Switching Mode
Built-in 650V Starter Circuit
Built-in 650V Switching MOSFET
Maximum Frequency of 200kHz
VCC pin: Under Voltage Protection
VCC pin: Over Voltage Protection (latch)
SOURCE pin: Leading-Edge-Blanking Function
ZT pin: Trigger Mask Function
ZT pin: Over Voltage Protection (latch)
NTC pin: Temperature Detecting Protection
(Automatic Recovery)
●Package
SOP8
5.00mm × 4.40mm pitch 1.27mm
(Typ) (Typ)
(Typ)
●Key Specifications
Operating Power Supply Voltage Range:
VCC 8.9V to 26.0V DRAIN: ～650V
Operating Current: Normal Operation: 0.35mA (Typ)
Operating Temperature Range: - 40°C. to +105°C
MOSFET ON Resistance: 4.0Ω (Typ)
●Application
LED bulb, sealed-type LED lighting
Electrical machineries for LED lighting
●Typical Application Circuit
A
～
BM520Q15F
Figure 1. Application circuit
○Product structure：Silicon monolithic integrated circuit
.www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product has no designed protection against radioactive rays.
1/16
TSZ02201-0F1F0C300030-1-2
03.Mar.2014 Rev.001
1 page  
BM520Q1XF Series
●Block Diagram
Datasheet
●External Dimensions
Figure 3. Block diagram
Figure 4. SOP8 package external dimensions
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/16
SZ02201-0F1F0C300030-1-2
03.Mar.2014 Rev.001
5 Page 
BM520Q1XF Series
Datasheet
●Operation mode of protection circuit
Operation mode of protection functions are shown in Table 2.
Table 2. Operation mode of protection circuit
Abnormal state
detection
Detect
Release
VCC
UVLO
OVP
TSD
ZT
NTC
OVP
LED
TEMP
<= 8.2V
>= 27.5V
>= 175℃
>= 3.50V
<= 0.12V
>= 13.5V
Before latch：<= 23.5V
Latched：VCC<= 7.7V
Before latch：<= 155℃
Latched：VCC<= 7.7V
Before latch：<= 3.33V
Latched：VCC<= 7.7V
>= 0.2V
Protection
operations
Automatic recovery
100us timer latch
100us timer latch
100us timer latch
Switching OFF
●Sequences
The sequences diagram of all states of this IC is showed in Figure 15.
In all states, when VCC<8.2V, the states change to OFF mode.
Figure 15. Transition diagram of all states
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/16
SZ02201-0F1F0C300030-1-2
03.Mar.2014 Rev.001
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet BM520Q15F.PDF ] | |
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