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:
½650V
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
DRAIN
A
½
NC
NC
GND
SOURCE
BM520Q15F
NTC
ZT
Figure 1.
Application circuit
○Product
structure：Silicon monolithic integrated circuit
.
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© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This
product has no designed protection against radioactive rays.
VCC
1/16
TSZ02201-0F1F0C300030-1-2
03.Mar.2014 Rev.001
BM520Q1XF Series
●Absolute
Maximum Ratings（Ta=25℃）
Item
Input Voltage Range 1
Input Voltage Range 2
Input Voltage Range 3
Drain Current Pulse
Maximum Power Dissipation
Operating Temperature Range
Maximum Junction Temperature
Storage Temperature Range
Symbol
Vmax1
Vmax2
Vmax3
I
DP
P
d
T
opr
Tjmax
T
str
Rating
-0.3 to 30
-0.3 to 6.5
650
2.60
563
(Note1)
-40 to +105
150
-55 to +150
Unit
V
V
V
A
mW
o
C
o
C
o
C
Condition
VCC
SOURCE, NTC, ZT
DRAIN
P
W
=10us, Duty cycle=1%
Datasheet
(Note1) When mounted (on 70 mm × 70 mm, 1.6 mm thick, glass epoxy on single-layer substrate). Derate by 4.563 mW/C above Ta = 25C.
●
Recommended Operating Conditions（Ta=25℃）
Parameter
Input Voltage Range 1
Input Voltage Range 2
Symbol
VCC
V
DRAIN
Rating
8.9 to 26.0
0 to 650
Unit
V
V
Condition
VCC voltage
DRAIN voltage
●Electrical
Characteristics（Ta=25℃）
MOSFET（Unless otherwise specified Ta = 25C, VCC = 15V）
Specification
Parameter
Drain-Source
Breakdown Voltage
Drain Leakage Current
ON Resistance
Symbol
V
(BR)DDS
I
DSS
R
DS(ON)
Min
650
-
-
Typ
-
-
4
Max
-
100
5.5
Unit
V
uA
Ω
Condition
ID=1mA / VGS=0V
VDS=650V / VGS=0V
ID=0.25A / VGS=10V
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© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
2/16
SZ02201-0F1F0C300030-1-2
03.Mar.2014 Rev.001
BM520Q1XF Series
●Electrical
Characteristics
IC（Unless otherwise specified, Ta = 25C, VCC = 15 V）
Specification
Parameter
［
Circuit current
½
Circuit Current (ON)1
Circuit Current (ON)2
［
VH pin start up circuit
½
VH Starting Current 1
VH Starting Current 2
VH OFF Current
VH Starting Current
Switching Voltage
［
VCC pin protection
½
VCC UVLO Voltage 1
VCC UVLO Voltage 2
VCC UVLO Hysteresis
VCC OVP Trigger Voltage
VCC OVP Release Voltage
Latch Released VCC Voltage
VCC Recharge Start Voltage
VCC Recharge End Voltage
Latch Mask Time
ZT Comparator Voltage 1
ZT Comparator Voltage 2
ZT Comparator Hysteresis
ZT Trigger Mask Time
ZT Trigger Timeout
Current Trigger Voltage
Maximum Frequency
Leading Edge Blank Time
Maximum ON Time
[ DC/DC protection ]
ZT OVP Voltage
[ NTC pin protection ]
NTC Pin Source current
NTC Trigger Voltage
NTC Hysteresis
I
NTC
V
NTC
V
NTCHYS
45
0.06
0.04
50
0.12
0.08
55
0.18
0.12
uA
V
V
NTC voltage=1.0V
V
ZTL
3.250
3.500
3.750
V
I
START1
I
START2
I
START3
V
SC
0.20
1
-
0.3
0.55
3
10
0.7
0.90
6
20
1.6
mA
mA
uA
V
VCC= 0V
VCC=10V
VCC UVLO released
VH pin sink current
VCC pin
I
ON1
I
ON2
120
-
350
220
700
400
μA
μA
Symbol
Min
Typ
Max
Unit
Condition
Datasheet
NTC=2.0V(PULSE operating)
BM520Q15F
NTC=0V(PULSE OFF)
V
UVLO1
V
UVLO2
V
UVLO3
V
OVP1
V
OVP2
V
LATCH2
V
CHG1
V
CHG2
T
LATCH
V
ZT1
V
ZT2
V
ZTHYS
T
ZTMASK
T
ZTOUT
V
CS
F
SW
T
LEB
T
max
12.5
7.5
-
25.0
21.0
-
7.7
12
60
40
120
-
-
10
0.57
180
-
30
13.5
8.2
5.3
27.5
23.5
V
UVLO2
-0.5
14.5
8.9
-
30.0
26.0
-
9.7
14
140
160
280
-
-
20
0.63
220
-
50.7
V
V
V
V
V
V
V
V
us
mV
mV
mV
us
us
V
KHz
us
us
VCC rising up
VCC falling down
V
UVLO3
=
V
UVLO1
- V
UVLO2
VCC rising up
VCC falling down
VCC falling down
VCC falling down
VCC rising up
8.7
13
100
100
200
100
0.8
15
0.6
200
0.2
39
[ DC/DC comparator
（turn-on）]
ZT falling down
ZT rising up
V
ZTHYS
=
V
ZT1
-
V
ZT2
VZT H->L,
for preventing from noise
[ DC/DC comparator
（turn-off）]
No AC compensation
NTC voltage falling down
NTC voltage rising up
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© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
3/16
SZ02201-0F1F0C300030-1-2
03.Mar.2014 Rev.001
BM520Q1XF Series
●Pin
Description
Table 1. I/O PIN functions
ESD protection
VCC
-
-
-
-
-
-
○
-
GND
○
-
-
○
○
○
-
○
Datasheet
NO.
1
2
3
4
5
6
7
8
Pin Name
VCC
N.C.
N.C.
DRAIN
SOURCE
NTC
GND
ZT
I/O
I/O
-
-
I/O
I
I/O
I/O
I
Function
Power Supply pin
Non Connection
Non Connection
MOSFET DRAIN pin
MOSFET DRAIN pin
Inductor Current Sensing pin
NTC Detect Input pin
GND pin, Input pin for Feedback Signal
Zero Current Detecting pin
●I/O
Equivalent Circuit Diagram
1PIN : VCC
DRAIN(4)
JFET
DRAIN(4)
4PIN : DRAIN
5PIN : SOURCE
DRAIN(4)
MOSFET
JFET
MOSFET
VREF4V
SOURCE(5)
SOURCE(5)
1MΩ
18kΩ
VCC(1)
25kΩ
Block
VCC(1)
GND(7)
6PIN : NTC
NTC(6)
8PIN : ZT
20kΩ
ZT(8)
50Ω
100Ω
10kΩ
200kΩ
20kΩ
25kΩ
30kΩ
300kΩ
Figure 2. I/O equivalent circuit diagram
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© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
4/16
SZ02201-0F1F0C300030-1-2
03.Mar.2014 Rev.001
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