BM2P061LF-Z [ROHM]

这是一款AC-DC用PWM方式DC-DC转换器,可为带插座的各种产品提供理想的系统。本IC支持隔离式电源,使用本产品可轻松设计各种形式的低功耗转换器。通过内置开关MOSFET、外置电流检测电阻,使电源设计的灵活性更高。此外,还内置有AC低电压保护功能和X电容放电功能,通过在轻负载时降低频率、Burst模式运行以及调整导通宽度,实现了更高效率。;
BM2P061LF-Z
型号: BM2P061LF-Z
厂家: ROHM    ROHM
描述:

这是一款AC-DC用PWM方式DC-DC转换器,可为带插座的各种产品提供理想的系统。本IC支持隔离式电源,使用本产品可轻松设计各种形式的低功耗转换器。通过内置开关MOSFET、外置电流检测电阻,使电源设计的灵活性更高。此外,还内置有AC低电压保护功能和X电容放电功能,通过在轻负载时降低频率、Burst模式运行以及调整导通宽度,实现了更高效率。

开关 DC-DC转换器 插座
文件: 总31页 (文件大小:1016K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
Datasheet  
AC/DC Converter IC  
PWM Type DC/DC Converter IC  
With Integrated Switching MOSFET  
BM2P060LF-Z BM2P061LF-Z  
General Description  
Key Specifications  
The PWM Type DC/DC Converter for AC/DC provides an  
optimal system for all products that include an electrical  
outlet. This IC supports isolated power supply and  
enables simpler designs of various low power  
consumption electrical converters.  
Operating Power Supply Voltage Range  
VCC Pin Voltage:  
VH Pin Voltage:  
DRAIN Pin Voltage:  
Current at Switching Operation:  
11 V to 60 V  
650 V (Max)  
730 V (Max)  
It realizes the high flexibility in power supply design by  
incorporating a switching MOSFET and with external  
current detection resistor.  
This IC can make high efficiency power supply because it  
has AC low voltage protection function and X capacitor  
discharge function and operates frequency reduction,  
minimum ON width adjustment and burst operation at  
light load.  
BM2P060LF-Z: 1400 μA (Typ)  
BM2P061LF-Z: 1100 μA (Typ)  
Current at Burst Operation:  
400 μA (Typ)  
65 kHz (Typ)  
Switching Frequency:  
Operating Temperature Range:  
-40 °C to +105 °C  
MOSFET ON Resistor:  
BM2P060LF-Z: 0.70 Ω (Typ)  
BM2P061LF-Z: 1.00 Ω (Typ)  
This IC has following various protection functions.  
Package  
SOP20A  
W (Typ) x D (Typ) x H (Max)  
12.8 mm x 10.3 mm x 2.65 mm  
Features  
AC Low Voltage Protection Function (AC UVLO)  
X Capacitor Discharge Function  
VCC Pin Low Voltage Protection (VCC UVLO)  
PWM Type Current Mode Control  
Frequency Reduction Function  
Burst Operation at Light Load  
Burst Voltage Setting Function  
Minimum ON Width Adjustment at Light Load  
Soft Start Function  
FB Pin Overload Protection Function (FB OLP)  
Over Current Protection Function by cycle  
Over Current Detection Compensation Function by  
AC Voltage Detection  
Lineup  
Product Name  
MOSFET ON  
Resistor  
0.70 Ω  
BM2P060LF-Z  
BM2P061LF-Z  
1.00 Ω  
Applications  
AC Adapters, Each Household Applications and  
Power Supplies for Motor  
External Latch Function  
Dynamic Over Current Protection  
Leading Edge Blanking Function  
Typical Application Circuit  
FUS E  
SN UBB ER  
DIO DE  
FILTER  
BR IDG E  
ER RO R  
AMP  
Product structure : Silicon integrated circuit This product has no designed protection against radioactive rays.  
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Pin Configuration  
(TOP VIEW)  
20  
19  
18  
17  
16  
15  
12  
11  
14  
13  
VH  
N.C.  
GND  
N.C.  
SOURCE  
N.C.  
DRAIN  
DRAIN  
DRAIN  
DRAIN  
N.C.  
6
DRAIN  
7
DRAIN  
8
DRAIN  
9
DRAIN  
10  
VCC  
5
OFF  
4
BURST  
3
FB  
2
LATCH  
1
Pin Descriptions  
ESD Diode  
No  
Pin name  
I/O  
Function  
VCC  
GND  
1
2
3
4
5
LATCH  
FB  
I
I/O  
I
External latch pin  
Feedback pin  
-
-
-
-
-
-
-
BURST  
OFF  
Burst setting pin  
MIN on setting pin  
I
VCC  
I/O  
-
Power supply input pin  
No connection (Note 1)  
6
N.C.  
DRAIN  
DRAIN  
DRAIN  
DRAIN  
DRAIN  
DRAIN  
DRAIN  
DRAIN  
N.C.  
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
MOSFET  
Drain pin  
I/O  
-
-
I/O  
-
No connection (Note 1)  
MOSFET source pin  
No connection (Note 1)  
GND pin  
-
-
-
-
SOURCE  
N.C.  
-
GND  
I/O  
-
-
-
N.C.  
No connection (Note 1)  
-
VH  
I
AC voltage start-up pin  
-
(Note 1) The N.C. pin must be open on the board. It means not to connect GND etc.  
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Block Diagram  
FUSE  
Diode  
Bridge  
AC  
Input  
Filter  
VH  
VCC  
DRAIN  
Starter  
X-Cap  
Discharge  
Internal  
Reg  
+
H voltage  
clamp  
AC voltage  
Detection  
 
Reg  
VCC CHG  
Reg  
Internal Block  
ROFF  
Min ON  
Setting  
S
R
OFF  
FB  
Q
DRIVER  
Reg  
FBOLP  
RFB  
Dynamic  
Over current  
FBOLP  
Timer  
-
+
PWM Control  
Protection  
1/AVG  
+
-
Pulse  
counter  
Min ON  
Width  
Current  
Limiter  
Reg  
Leading Edge  
Blanking  
Burst  
+
Comparator  
-
-
RBURST  
SOURCE  
+
Burst  
Setting  
PWM  
Comparator  
AC detection  
Compensation  
BURST  
Soft Start  
-
+
MAX  
DUTY  
Slope  
+
Compensation  
Frequency  
Hopping  
GND  
OSC  
Frequency  
Reduction  
Reg  
RLATCH  
LATCH  
LATCH  
stop  
+
-
Timer  
LATCH  
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Description of Blocks  
1
Start-up Circuit  
This IC has a built-in start-up circuit. When the AC input voltage is applied, the VH pin is also applied the voltage.  
Then the VCC pin voltage is charged by applied current to the VCC pin through the start-up circuit. This charge is  
stopped after the VCC pin voltage rises and VCC UVLO is released.  
2
AC UVLO (Under Voltage Lockout), X Capacitor Discharge Function  
AC UVLO:  
At start-up, the voltage occurs at the VH pin when the AC input voltage is applied.  
The VCC pin waits the detection of AC input voltage remaining applied voltage and IC switching  
is stopped until the VH pin peak voltage becomes more than VINLVP while this IC charges the  
VCC pin through the start-up circuit. IC does not work switching operate in AC UVLO operation.  
When the VH pin peak voltage is more than VINLVP, AC UVLO function is released and IC works  
switching operation.  
After stopping AC input voltage supply, the VH pin peak voltage is VINLVP or less for tINLVP  
,
IC stops switching operation.  
X Capacitor Discharge Function: When the status of the VH pin peak voltage is VINLVP or less continues for tINLVP and  
the switching operation is stopped by AC UVLO function, X capacitor discharge  
function starts to operate. Since the VH pin detects the voltage change, even if  
the VH pin peak voltage is more than VINLVP, If the VH pin does not detect voltage  
rising or falling for tINLVP, IC does not work switching operation.  
FUSE  
VH  
VCC  
IVCC  
ISTART  
Start-up  
Circuit  
UVLO  
+
-
LOGIC  
Recharge  
+
-
Internal  
BLOCK  
MONITOR  
+
-
Timer  
tINLVP  
LOGIC  
X-capacitor  
Discharge  
Figure 1. Block Diagram of VH Pin and VCC Pin  
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2
AC UVLO (Under Voltage Lockout), X Capacitor Discharge Function – continued  
tINLVP  
AC input voltage  
VH pin voltage  
VCC pin voltage  
VUVLO1  
VCHG2  
VCHG1  
VUVLO2  
VCC pin current  
ON  
VCC UVLO  
Switching  
ON  
ON  
X capacitor  
discharge function  
ON  
ON  
ON  
ON  
I
VCC recharge  
function  
B
A
C
D
E
F
H
J
G
Figure 2. Timing Chart of X Capacitor Discharge Function  
A: The AC input voltage is turned OFF.  
B: After tINLVP from A, the switching operation stops. VCC capacitor is discharged because of the VCC pin voltage  
more than VCHG1  
.
C: When the VCC pin voltage becomes less than VCHG1, the VCC recharge operation starts.  
D: When the VCC pin voltage becomes more than VCHG2, the VCC recharge operation stops.  
E: The Same as C.  
F: The Same as D.  
G: The Same as C.  
H: The Same as D.  
I: When the VCC pin voltage becomes less than VCHG1, the VCC recharge function operates. However, the  
current supply to the VCC pin decreases and the VCC pin voltage continues to drop because of the low VH pin  
voltage.  
J: When the VCC pin voltage becomes less than VUVLO2, VCC UVLO operates.  
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Description of Blocks – continued  
3
VCC Pin Protection Function  
This IC has VCC UVLO and VCC recharge function at the VCC pin.  
3.1 VCC UVLO (Under Voltage Lockout)  
This is an auto recovery comparator with a voltage hysteresis. When the VCC pin voltage becomes less than  
VUVLO2, the IC stops the operation. And, when the VCC pin voltage becomes more than VUVLO1, the operation is  
restarted.  
3.2 VCC Recharge Function  
If the VCC pin voltage drops to less than VCHG1 after once the VCC pin becomes more than VUVLO1 and the IC  
starts to operate, the VCC recharge function operates. At this time, the VCC pin is recharged from the VH pin  
through the start-up circuit. When the VCC pin voltage becomes more than VCHG2, this recharge is stopped.  
VINLVP  
VH pin voltage  
AC UVLO  
VUVLO1  
VCHG2  
VCC pin voltage  
VCHG1  
VUVLO2  
VRLS  
VCC UVLO  
tLATCH  
LATCH detection  
LATCH protection  
VCC charge  
VCC recharge  
function  
Switching  
B
C D  
E
F G  
H
I
J K L  
M
A
Figure 3. Timing Chart of VCC UVLO and VCC Recharge Function  
A: The VH pin is applied voltage and the VCC pin voltage rises.  
B: When the VH pin voltage becomes more than VINLVP, AC UVLO is released.  
C: When the VCC pin voltage becomes more than VUVLO1, the switching operation starts.  
D: When the VCC pin voltage becomes less than VCHG1, the VCC pin is recharged from the VH pin by VCC recharge  
function.  
E: When the VCC pin voltage becomes more than VCHG2, the VCC recharge function is stopped.  
F: In case of the VCC pin voltage rises, the LATCH pin voltage is dropped through photo coupler from secondary  
microcomputer.  
G: When the LATCH pin voltage dropping continues for tLATCH, the switching operation is latched stop.  
H: When the VCC pin voltage becomes less than VCHG1, VCC recharge function operates.  
I: When the VCC pin voltage becomes more than VCHG2, VCC recharge function stops. By the operation of H and I,  
the VCC pin voltage is maintained constantly.  
J: When the VCC pin voltage becomes less than VCHG1, the VCC recharge function operates. However, the current  
supply to the VCC pin decreases and the VCC pin voltage continues to drop because of the low VH pin voltage.  
K: When the VCC pin voltage becomes less than VUVLO2, VCC UVLO operates.  
L: When the VCC pin voltage becomes less than VRLS, the latch protection is released.  
M: The VH pin is applied voltage and the IC operation restarts.  
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Description of Blocks – continued  
4
DC/DC Driver Block  
This IC performs a current mode PWM control and it has the following characteristics.  
The switching frequency operates in the range of fSW2 to fSW1 by an internal oscillator. It has a built-in frequency  
hopping function and the fluctuation cycle is at random. It makes the EMI low by swaying the switching  
frequency within ±6 %.  
This IC controls the ON width by detecting the peak current using the SOURCE pin voltage correspond to the FB  
pin voltage. The SOURCE pin voltage is restricted to 1/AVG of the FB pin voltage.  
Maximum duty is fixed at DMAX.  
In the current mode control, a sub-harmonic oscillation may occur when the duty cycle exceeds 50 %. As a  
countermeasure, this IC has a built-in slope compensation circuit.  
It has a built-in burst mode and frequency reduction circuit to achieve lower power consumption at light load.  
The FB pin is pulled up to the internal power supply by RFB  
.
The FB pin voltage is changed by the secondary output power. This IC monitors this and changes a switching  
operation status.  
4.1 Transition of Switching Frequency by FB Pin Voltage  
IC works burst operation which moves between mode a and mode b by repetition.  
IC enables to set burst stop voltage at the BURST pin.  
VBST* means VBST1 to VBST8 and it is able to select by the BURST pin.  
Refer to the description of 4.6.3 about setting by AC voltage.  
IC does not work switching operation when the FB pin voltage is less than burst stop voltage at light load.  
After burst stop status, as the FB pin voltage is more than burst release voltage, IC rework switching operation.  
IC switching frequency increases from fsw2 to fsw1 in proportion to the FB voltage at mode c.  
mode a:  
mode b:  
mode c:  
mode d:  
Burst operation  
Fix frequency operation  
Frequency modulated operation(Change switching frequency)  
Fix frequency operation  
(Operate intermittently)  
(Operate for fSW2  
)
(Operate for fSW1)  
Switching Frequency  
mode a  
mode b mode c  
mode d  
fSW1  
Switching  
OFF  
fSW2  
VBST*  
VFBSW1  
VFBSW2  
FB pin  
voltage  
Figure 4. State Transition of Switching Frequency  
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4
DC/DC Driver Block - continued  
4.2 Transition of SOURCE Pin Voltage by FB Pin Voltage  
This IC operates as shown below.  
Over current detection protection voltage (VOCP) means from VOCP1 to VOCP8, the value is set by AC voltage.  
The setting by AC voltage refers to 4.5.1.  
VBST* means from VBST1 to VBST8, the value is set by the BURST pin voltage.  
The setting by AC voltage refers to 4.6.3.  
mode A:  
mode B:  
mode C:  
Burst operation  
Normal load operation (The SOURCE pin voltage is changed by the FB pin voltage.)  
Overload operation  
(The SOURCE pin peak voltage is limited by VOCP  
.
When the status continues for tFBOLP1, IC is latched by FB OLP.)  
SOURCE Pin Voltage  
mode A  
mode C  
mode B  
VOCP  
Switching  
OFF  
FB pin  
voltage  
VBST1/VBST2  
Figure 5. State Transition of SOURCE Pin Voltage by FB Pin Voltage  
4.3 Soft Start Function  
This function controls the over current protection voltage in order to prevent any excessive voltage or current  
rising at start-up. This IC enables the soft start operation by changing the over current protection voltage with  
time.  
SOURCE pin voltage  
SS1  
SS2  
VOCP  
x 1.00  
VOCP  
x 0.60  
VOCP  
x 0.30  
Time  
[ms]  
tSS2  
tSS1  
Figure 6. Soft Start Function  
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4
DC/DC Driver Block - continued  
4.4 FB Pin Overload Protection Function (FB OLP)  
This IC is latched off when status that the FB pin voltage more than VFBOLP1 during tFBOLP  
.
When the FB pin voltage is less than VFBOLP2 during tFBOLP, the detection timer tFBOLP is released.  
Output Voltage  
FB pin voltage  
VFBOLP1  
VFBOLP2  
tFBOLP  
FB overload  
detectecd  
LATCH detect  
Switching  
Figure 7. FB Overload Protection Function  
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4
DC/DC Driver Block – continued  
4.5 SOURCE Pin Protection Function  
This IC has a built-in OCP for cycle and Dynamic OCP in the SOURCE pin.  
Table 1. Operation Status of SOURCE Pin Protection Functions  
Function  
OCP  
Load Status at Operation to Protect  
Detection Voltage  
Operation to Protect  
Turned off by pulse  
SOURCE pin peak voltage > VOCP  
(VOCP: It is set from VOCP1  
Over the peak load  
(Lowing the output voltage)  
to VOCP8  
)
SOURCE pin peak voltage > VDOC  
Operate at the time of the detection  
in two continuations.  
Dynamic  
OCP  
SOURCE pin voltage is increased  
for CCM operation  
Switching stop  
for tDOC  
(VDOC: set by from VDOC1 to VDOC8  
)
4.5.1  
Over Current Protection function (OCP)  
This IC is built-in OCP function by switching cycle.  
As the SOURCE pin peak voltage is more than VOCP1 to VOCP8, MOSFET is turned to OFF.  
OCP is built-in AC voltage compensation function. IC detects the VH pin peak voltage, OCP voltage  
is switched from VOCP1 to VOCP8 according to Table 2.  
This function compensates the AC voltage dependency of overload protection power.  
At this time, the maximum power has the characteristics shown in Figure 9.  
Table 2. OCP voltage by AC voltage detection  
OCP  
Symbol  
OCP[V]  
(Typ)  
VH peak Voltage[V]  
to 85  
VOCP1  
VOCP2  
VOCP3  
VOCP4  
VOCP5  
VOCP6  
VOCP7  
VOCP8  
0.680  
0.670  
0.640  
0.615  
0.600  
0.590  
0.580  
0.570  
85 to 127  
127 to 170  
170 to 212  
212 to 255  
255 to 297  
297 to 339  
339 to  
0.680  
150.0  
145.0  
140.0  
135.0  
130.0  
125.0  
120.0  
115.0  
110.0  
105.0  
100.0  
0.660  
0.640  
0.620  
0.600  
0.580  
0.560  
0
100  
200  
300  
400  
500  
0
100  
200  
300  
400  
500  
VH peak Voltage [V]  
VH peak Voltage [V]  
Figure 9.(Note 2) Example of Maximum Power  
(Lp = 450 μH, Rs = 0.22 Ω)  
Figure 8. OCP Voltage vs VH peak Voltage  
(Note 2) Figure 9 is reference graph. It changes to depend on external condition.  
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4.5 SOURCE pin protection function – continued  
4.5.2  
Dynamic over current protection function  
This IC is built-in dynamic over current protection.  
When the SOURCE pin voltage detects over VDOC voltage in continuous two pulses,  
IC stops switching operation for tDOC.  
2 counts  
VDOC  
1
2
SOURCE  
Switching  
tDOC  
ON  
ON  
OFF  
Figure 10. Dynamic OCP Timing Chart  
Leading Edge Blanking function  
4.5.3  
Normally, when the MOSFET for switching is turned to ON, surge current is generated at each  
capacitor component and drive current and so on. At this time, detection errors may occur in the over  
current protection function because the SOURCE pin voltage rises temporary. To prevent these  
errors, Leading Edge Blanking function is built-in this IC. This function masks the SOURCE pin  
voltage for tLEB from the switch of the Drain pin H to L.  
4.6 Minimum ON width function  
This IC is built-in minimum ON width function.  
4.6.1  
Minimum ON width switching function by FB pin pulse count of burst period  
Normally, the minimum ON width of this IC is tMIN1. When the operation is burst operation at light load,  
IC counts the number of switching from the start of switching after the burst stop is released to the  
burst stop again. When switching number is 3 pulses or less IC operates low stand-by mode, and IC  
switches minimum ON width. The switching of minimum ON width is decided from tMIN2 to tMIN4 to  
correspond to the OFF pin resistor value. As minimum ON width is switched, the number of switching  
is low. When it is low standby power mode, if the load is increased, the number of switching increases.  
When the number of switching after the burst operation is stopped is 2 pulses or more, the low standby  
power mode is switched to the normal mode. Then minimum ON width function is released, minimum  
ON width is to tMIN1.  
VCC  
VBST2  
VBST1  
FB  
DRAIN  
State  
NORMAL  
B
NORMAL  
Low Power  
A
C
D
E F  
G H  
Figure 11. MIN ON Width Function  
A:  
B:  
VCC voltage rises, and IC works switching operation.  
When the FB pin voltage is less than VBST1, IC does not work switching operation by burst  
function.  
C:  
D:  
When the FB pin voltage is more than VBST2, IC works switching operation.  
Because the number of switching is 3 times for one burst period, IC changes low standby mode.  
And pulse width is increased after the next burst release.  
Burst stop function is released, the minimum ON width increases.  
Because the power of one switching increases, pulse number is reduced.  
Because IC detects burst stop in the state of one switching number,  
IC maintains low standby mode.  
E:  
F:  
G:  
H:  
The burst stop is released, IC works switching operation.  
Because IC detects second pulse in one burst period, IC changes from low standby mode  
to normal mode.  
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4.6  
4.6.2  
Minimum ON width function - continued  
Minimum ON width switching function by OFF pin  
Minimum ON width in burst operation is able to switch external resistor at the OFF pin.  
IC detects the OFF pin resistor value at the timing of tSTSET2 from VCC UVLO released.  
Then IC sets minimum ON width below.  
When the OFF pin is connected to GND, MIN ON width is set to tMIN4, the number of switching pulse  
increases by +1.  
The function is reset when VCC UVLO is detected.  
Table 3. MIN ON Setting Width  
Number of  
Low Standby Mode  
Switching Pulse  
Number of  
Normal Mode  
Switching Pulse  
R1 (kΩ)  
MIN ON width  
OPEN  
180  
tMIN2  
tMIN3  
tMIN4  
tMIN4  
3
3
3
4
1
1
1
2
47  
GND  
Reg  
ROFF  
MIN ON width  
Setting  
OFF  
R1  
Figure 12. OFF Setting Circuit  
BURST voltage switching function by BURST pin  
4.6.3  
Burst operation voltage is able to switch external resistor at the BURST pin.  
IC sets the BURST voltage as follows by BURST pin voltage at the timing of tSTSET1 from VCC UVLO  
released.  
The function is reset when VCC UVLO is detected.  
Table 4. BURST Voltage Setting  
Burst Detection Voltage  
Symbol  
Burst Release Voltage  
Symbol  
R2 (kΩ)  
OPEN  
180  
47  
VBST1  
VBST3  
VBST5  
VBST7  
VBST2  
VBST4  
VBST6  
VBST8  
GND  
Reg  
RBURST  
Burst voltage  
Setting  
BURST  
R2  
Figure 13. BURST Setting Circuit  
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Description of Blocks – continued  
5
External latch stop function by the LATCH pin  
When the LATCH pin becomes less than VLATCH, IC stops operation at latch.  
The latch stop operation has a built-in mask timer of tLATCH. It prevents misdetection from noise.  
The LATCH pin is pulled up by RLATCH in IC.  
The example of using LATCH pin: External Latch stop  
The LATCH pin can be operated latch stop by external signal.  
As an example, it shows circuit which stops at latch from secondary microcomputer.  
Reg  
RLATCH  
+
-
LATCH  
μ-CON  
Figure 14. External Latch circuit  
The example of using LATCH pin: Overheat protection by using thermistor  
The LATCH pin can operate overheat protection to connect thermistor at the LATCH pin.  
As an example, it shows circuit which stops at latch by thermistor.  
Reg  
RLATCH  
+
LATCH  
-
LATCH  
Thermistor  
Figure 15. Latch circuit of Thermistor  
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Operation Mode of Protection Functions  
The operation modes of each protection function are shown in Table 5.  
Table 5. Operation Modes of Protection Functions  
AC UVLO  
VCC UVLO  
Dynamic OCP  
Detection  
Conditions  
VCC pin voltage < VUVLO2  
(voltage drop)  
SOURCE pin voltage  
> VDOC  
VH pin peak voltage ≤ VINLVP  
Release  
Conditions  
VCC pin voltage > VUVLO1  
(voltage rise)  
VH pin peak voltage > VINLVP  
Release after past for tDOC  
Detection Timer  
tINLVP  
Detect continuous two pulses  
(VH pin peak voltage > VINLVP  
)
(Reset Conditions)  
Auto restart  
or  
Auto restart  
LATCH  
Auto restart  
FB OLP  
Auto restart  
Latch  
TSD (Thermal Protection)  
Detection  
Conditions  
LATCH pin voltage < VLATCH  
(Voltage drop)  
FB pin voltage > VFBOLP1  
(Voltage rise)  
Tj > TTSD1  
(Temperature rise)  
Release  
Conditions  
Tj < TTSD2  
(Temperature drop)  
VCC pin voltage < VRLS  
VCC pin voltage < VRLS  
Detection Timer  
tLATCH  
(LATCH pin voltage > VLATCH  
tFBOLP  
(FB pin voltage < VFBOLP2  
tTSD  
(Tj < TTSD2)  
)
)
(Reset Conditions)  
Auto restart  
or  
Latch  
Latch  
Auto restart  
Latch  
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Absolute Maximum Ratings (Ta = 25 °C)  
Parameter  
Symbol  
VMAX1  
VMAX2  
Rating  
Unit  
Condition  
-0.3 to +650  
730  
V
V
DRAIN  
Maximum Applied Voltage 1  
Maximum Applied Voltage 2  
DRAIN (tpulse < 10 μs) (Note 3)  
SOURCE, FB, OFF, BURST,  
LATCH  
-0.3 to +6.5  
V
Maximum Applied Voltage 3  
Maximum Applied Voltage 4  
VMAX3  
VMAX4  
-0.3 to +62.0  
-0.3 to +650.0  
V
V
VCC  
VH  
Pw = 10 µs, Duty cycle = 1 %  
(BM2P060LF-Z)  
Drain Current 1 (Pulse)  
Drain Current 2 (Pulse)  
IDP1  
IDP2  
21  
12  
A
A
Pw = 10 µs, Duty cycle = 1 %  
(BM2P061LF-Z)  
(Note 4)  
Power Dissipation  
Pd  
2.30  
150  
W
°C  
°C  
Maximum Junction Temperature  
Tjmax  
Storage Temperature Range  
Tstg  
-55 to +150  
Caution 1: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit  
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is  
operated over the absolute maximum ratings.  
Caution 2: Should by any chance the maximum junction temperature rating be exceeded the rise in temperature of the chip may result in deterioration of the  
properties of the chip. In case of exceeding this absolute maximum rating, design a PCB with power dissipation taken into consideration by increasing  
board size and copper area so as not to exceed the maximum junction temperature rating.  
(Note 3) Duty is less than 1 %  
(Note 4) When IC mounted singly. Derate by 18.3 mW / °C if the IC is used in the ambient temperature 25 °C or more.  
Thermal Dissipation  
Make the thermal design so that the IC operates in the following conditions.  
(Because the following temperature is guarantee value, it is necessary to consider margin.)  
1. The ambient temperature Ta must be 105 °C or less.  
2. The IC’s loss must be the power dissipation Pd or less.  
The thermal abatement characteristic is as follows.  
(At mounting singly)  
2.50  
2.00  
1.50  
1.00  
0.50  
0.00  
0
25  
50  
75  
100  
125  
150  
Ta []  
Figure 16. SOP20A Thermal Dissipation Characteristic  
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Recommended Operating Conditions  
Parameter  
Symbol  
VCC  
Min  
11  
-
Typ  
Max  
60  
Unit  
V
Operating VCC Pin Voltage Range  
VH Pin Range at AC Voltage  
-
-
300  
VH  
V
(Note 5)  
VCC Pin Capacitor  
VH Pin Resistor  
CVCC  
RVH  
4.7  
-
-
-
-
-
µF  
kΩ  
°C  
4.7  
Operating Temperature  
Topr  
-40  
+105  
(Note 5) The recommendation maximum operating voltage shows AC 300 V which is the input AC voltage in the application.  
Apply the input AC voltage which is full-wave-rectified to the VH pin.  
Electrical Characteristics in MOSFET Part (Unless otherwise specified Tj = 25 °C, VCC = 15 V)  
Parameter  
Symbol  
Min  
650  
730  
Typ  
Max  
Unit  
V
Conditions  
-
-
-
-
ID = 1 mA, VGS = 0 V  
Drain Voltage  
VDS  
ID = 1 mA, VGS = 0 V  
tpulse < 10 μs(Note 6)  
V
DRAIN Pin Leak Current  
ON Resistor 1  
IDSS  
-
-
-
-
100  
0.86  
1.35  
μA  
Ω
VDS = 650 V, VGS = 0 V  
BM2P060LF-Z  
RDS(ON)1  
RDS(ON)2  
0.70  
1.00  
ON Resistor 2  
Ω
BM2P061LF-Z  
(Note 6) Duty is less than 1 %.  
Electrical Characteristics in Start Up VH Part (Unless otherwise specified Tj = 25 °C, VCC = 15 V)  
Parameter  
Symbol  
Min  
Typ  
Max  
Unit  
Conditions  
Start-up Current  
ISTART1  
ISTART2  
VINLVP  
tINLVP  
8
5
15  
12  
25  
20  
mA  
μA  
V
VH = 100 V, VCC = 10 V  
VH = 100 V, VCC = 15 V  
VH Pin OFF Current  
AC UVLO Detection Voltage  
Discharge ON Delay Timer  
75  
105  
85  
95  
150  
195  
ms  
Electrical Characteristics in Control IC Part (Unless otherwise specified Tj = -40 °C to +105 °C, VCC = 15 V)  
Parameter  
Symbol  
Min  
900  
500  
Typ  
Max  
2000  
1700  
Unit  
Conditions  
BM2P060LF-Z,  
Current at Switching Operation 1A  
Current at Switching Operation 1B  
ION1A  
1400  
1100  
μA  
FB = 3.0 V (Note 7)  
BM2P061LF-Z,  
FB = 3.0 V (Note 7)  
ION1B  
μA  
Current at Burst Operation  
Current at LATCH  
ION2  
250  
150  
13.0  
8.2  
400  
300  
14.0  
9.0  
550  
450  
15.0  
9.8  
μA  
μA  
V
FB = 0.2 V (Note 7)  
FB pin is OPEN(Note 7)  
VCC rising (Note 7)  
VCC falling (Note 7)  
ILATCH  
VUVLO1  
VUVLO2  
VCC UVLO Release Voltage  
VCC UVLO Detection Voltage  
V
VUVLO3 = VUVLO1 - VUVLO2  
(Note 7)  
VCC UVLO Hysteresis  
VUVLO3  
-
5.0  
-
V
(Note 7)  
(Note 7)  
VCC Recharge Start Voltage  
VCC Recharge Stop Voltage  
TSD Temperature 1  
TSD Temperature 2  
TSD Timer  
VCHG1  
VCHG2  
TTSD1  
TTSD2  
tTSD  
9
11  
150  
-
10  
12  
11  
13  
-
V
V
-
°C  
°C  
μs  
V
TTSD1 -25  
100  
-
-
-
Latch Release Voltage  
VRLS  
-
VUVLO2 - 1  
-
VCC pin voltage  
(Note 7) Tj = 25 °C guaranteed.  
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Electrical Characteristics – continued (Unless otherwise specified, Tj = -40 °C to +105 °C, VCC = 15 V)  
Parameter  
Symbol  
Min  
Typ  
Max  
Unit  
Conditions  
DC/DC Driver Block  
(Note 7)  
Switching Frequency 1  
Switching Frequency 2  
Frequency Hopping Width  
Voltage Gain (FB/SOURCE)  
Maximum Duty  
fSW1  
fSW2  
60  
65  
25  
70  
kHz  
kHz  
kHz  
V/V  
%
20  
30  
fDEL  
-
4
-
FB = 3.0 V  
AVG  
-
67  
0.20  
-
5
-
83  
0.30  
-
(Note 7)  
DMAX  
VBST1  
VBST2  
VBST3  
VBST4  
VBST5  
VBST6  
VBST7  
VBST8  
75  
FB Pin Burst Voltage 1  
FB Pin Burst Voltage 2  
FB Pin Burst Voltage 3  
FB Pin Burst Voltage 4  
FB Pin Burst Voltage 5  
FB Pin Burst Voltage 6  
FB Pin Burst Voltage 7  
FB Pin Burst Voltage 8  
0.25  
0.28  
0.30  
0.33  
0.35  
0.40  
0.45  
0.50  
V
FB Falling  
FB Rising  
FB Falling  
FB Rising  
FB Falling  
FB Rising  
FB Falling  
FB Rising  
(Note 7)  
V
0.25  
-
0.35  
-
V
V
0.30  
-
0.40  
-
V
V
0.40  
-
0.50  
-
V
V
Frequency Reduction Start FB Pin  
Voltage  
VFBSW1  
0.75  
0.90  
1.05  
V
Frequency Reduction End FB Pin  
Voltage  
(Note 7)  
VFBSW2  
tLEB  
1.15  
-
1.30  
0.25  
2.0  
1.45  
-
V
Leading Edge Blanking Time  
µs  
During normal operation  
SOURCE Pin Pull up Resistor  
RSOCE  
1.4  
2.6  
MΩ  
(Note 7)  
(Note 7)  
FB Pin Pull up Resistor  
Minimum ON Width 1  
Minimum ON Width 2  
Minimum ON Width 3  
Minimum ON Width 4  
RFB  
tMIN1  
tMIN2  
tMIN3  
tMIN4  
24  
-
30  
36  
-
kΩ  
µs  
µs  
µs  
µs  
0.50  
1.50  
1.70  
1.90  
Normal  
1.30  
1.55  
1.70  
1.70  
1.85  
2.10  
OFF: OPEN (Note 7)  
OFF: 180 kΩ (Note 7)  
OFF: or less 47 kΩ (Note 7)  
DC/DC Driver Block (SOURCE Pin Over Current Protection Function)  
SOURCE Pin OCP Voltage 1  
VOCP1  
VOCP2  
VOCP3  
VOCP4  
VOCP5  
VOCP6  
VOCP7  
VOCP8  
VDOC1  
VDOC2  
VDOC3  
VDOC4  
VDOC5  
VDOC6  
VDOC7  
VDOC8  
0.645  
0.635  
0.605  
0.580  
0.565  
0.555  
0.545  
0.535  
0.934  
0.920  
0.886  
0.858  
0.837  
0.823  
0.809  
0.795  
0.680  
0.670  
0.640  
0.615  
0.600  
0.590  
0.580  
0.570  
1.005  
0.990  
0.953  
0.923  
0.900  
0.885  
0.870  
0.855  
0.715  
0.705  
0.675  
0.640  
0.635  
0.625  
0.615  
0.605  
1.076  
1.060  
1.020  
0.988  
0.963  
0.947  
0.931  
0.915  
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
VH peak < 85 V  
SOURCE Pin OCP Voltage 2  
85 V < VH peak < 127 V  
127 V < VH peak < 170 V  
170 V < VH peak < 212 V  
212 V < VH peak < 255 V  
255 V < VH peak < 297 V  
297 V < VH peak < 339 V  
VH peak > 339 V  
SOURCE Pin OCP Voltage 3  
SOURCE Pin OCP Voltage 4  
SOURCE Pin OCP Voltage 5  
SOURCE Pin OCP Voltage 6  
SOURCE Pin OCP Voltage 7  
SOURCE Pin OCP Voltage 8  
SOURCE Pin Dynamic OCP Voltage 1  
SOURCE Pin Dynamic OCP Voltage 2  
SOURCE Pin Dynamic OCP Voltage 3  
SOURCE Pin Dynamic OCP Voltage 4  
SOURCE Pin Dynamic OCP Voltage 5  
SOURCE Pin Dynamic OCP Voltage 6  
SOURCE Pin Dynamic OCP Voltage 7  
SOURCE Pin Dynamic OCP Voltage 8  
VH peak < 85 V  
85 V < VH peak < 127 V  
127 V < VH peak < 170 V  
170 V < VH peak < 212 V  
212 V < VH peak < 255 V  
255 V < VH peak < 297 V  
297 V < VH peak < 339 V  
VH peak > 339 V  
SOURCE Pin Dynamic OCP  
Stop Timer  
(Note 7)  
tDOC  
100  
160  
220  
µs  
(Note 7) Tj = 25 °C guaranteed.  
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Electrical Characteristics – continued (Unless otherwise specified Tj = -40 °C to +105 °C, VCC = 15 V)  
Parameter  
Symbol  
Min  
Typ  
Max  
Unit  
Conditions  
DC/DC Driver Block (Soft Start Function)  
Soft Start Timer 1  
tSS1  
tSS2  
1.79  
7.17  
2.56  
3.33  
ms  
ms  
Soft Start Timer 2  
10.24  
13.31  
DC/DC Driver Block (FB Pin Overload Protection Function)  
FB OLP Detection Voltage  
FB OLP Release Voltage  
FB OLP Detection Timer  
VFBOLP1  
VFBOLP2  
tFBOLP  
3.9  
-
4.2  
4.0  
4.5  
-
V
V
(Note 7)  
121  
164  
207  
ms  
External Stop Function by the LATCH Pin  
LATCH Pin by Latch Stop Voltage  
LATCH Pin Pull up Resistor  
LATCH Detection Timer  
VLATCH  
0.4  
19.4  
75  
0.5  
25.9  
150  
2.87  
0.6  
32.3  
250  
3.08  
V
(Note 7)  
(Note 7)  
RLATCH  
tLATCH  
RTP  
kΩ  
µs  
kΩ  
LATCH Pin External Resistor  
BURST Pin Setting Block  
BURST Pin Pull up Resistor  
2.66  
(Note 7)  
(Note 7)  
RBURST  
tSTSET1  
150  
160  
200  
320  
250  
480  
kΩ  
µs  
BURST Pin External Resistor Detection  
Timer in Start-up  
OFF Pin Setting Block  
(Note 7)  
(Note 7)  
OFF Pin Pull up Resistor  
ROFF  
150  
160  
200  
320  
250  
480  
kΩ  
µs  
OFF Pin External Resistor Detection  
Timer in Start-up  
(Note 7) Tj = 25 °C guaranteed.  
tSTSET2  
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Application Examples  
Show a flyback circuitry example in Figure 16.  
Be careful that when the DRAIN voltage turn off it is occur high voltage with ringing.  
With this IC, it become able to operate to 730 V.  
FUS E  
SN UBB ER  
DIO DE  
FILTER  
BR IDG E  
ER RO R  
AMP  
Figure 17. Flyback Application Diagram  
730 V  
650 V  
DRAIN  
0 V  
tpulse < 10 μs (Duty < 1 %)  
Figure 18. DRAIN pin Ringing Waveform  
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Typical Performance Curves  
550  
475  
400  
325  
250  
2000  
1800  
1600  
1400  
1200  
1000  
800  
-40 -20  
0
20 40 60 80 100  
-40 -20  
0
20 40 60 80 100  
Temperature[]  
Temperature[]  
Figure 19. Current at Switching Operation 1A vs Temperature  
Figure 20. Current at Burst Operation vs Temperature  
72  
70  
68  
66  
64  
62  
60  
58  
450  
375  
300  
225  
150  
-40 -20  
0
20 40 60 80 100  
-40 -20  
0
20 40 60 80 100  
Temperature[]  
Temperature[]  
Figure 21. Current at LATCH vs Temperature  
Figure 22. Switching Frequency 1 vs Temperature  
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Typical Performance Curves – continued  
15.0  
14.5  
14.0  
13.5  
13.0  
9.8  
9.4  
9.0  
8.6  
8.2  
-40 -20  
0
20 40 60 80 100  
-40 -20  
0
20 40 60 80 100  
Temperature[]  
Temperature[]  
Figure 23. VCC UVLO Release Voltage vs Temperature  
Figure 24. VCC UVLO Detection Voltage vs Temperature  
11.0  
10.5  
10.0  
9.5  
13.0  
12.5  
12.0  
11.5  
11.0  
9.0  
-40 -20  
0
20 40 60 80 100  
-40 -20  
0
20 40 60 80 100  
Temperature[]  
Temperature[]  
Figure 25. VCC Recharge Start Voltage vs Temperature  
Figure 26. VCC Recharge Stop Voltage vs Temperature  
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Typical Performance Curves – continued  
0.64  
0.62  
0.60  
0.58  
0.56  
36  
33  
30  
27  
24  
-40 -20  
0
20 40 60 80 100  
-40 -20  
0
20 40 60 80 100  
Temperature[]  
Temperature[]  
Figure 28. FB Pin Pull up Resistor vs Temperature  
Figure 27. SOURCE Pin OCP Voltage 5 vs Temperature  
0.40  
0.38  
0.36  
0.34  
0.32  
0.30  
208  
186  
164  
142  
120  
-40 -20  
0
20  
40  
60  
80 100  
-40 -20  
0
20  
40  
60  
80 100  
Temperature[]  
Temperature[]  
Figure 29. FB Pin Burst Voltage 5 vs Temperature  
Figure 30. FB OLP Detection Timer vs Temperature  
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I/O Equivalence Circuit  
2
BURST  
3
LATCH  
1
FB  
4
OFF  
Internal  
Reg  
Internal  
Reg  
Internal  
Reg  
Internal  
Reg  
OFF  
LATCH  
FB  
BURST  
GND  
GND  
GND  
GND  
6
N.C.  
8
DRAIN  
5
VCC  
DRAIN  
7
DRAIN  
DRAIN  
VCC  
-
SOURCE  
GND  
SOURCE  
GND  
GND  
9
13  
17  
10  
14  
18  
12  
16  
20  
DRAIN  
DRAIN  
11  
15  
19  
DRAIN  
DRAIN  
DRAIN  
DRAIN  
DRAIN  
DRAIN  
SOURCE  
GND  
SOURCE  
GND  
SOURCE  
GND  
SOURCE  
GND  
SOURCE  
DRAIN  
N.C.  
DRAIN  
DRAIN  
DRAIN  
Internal  
Reg  
MOSFET  
DRAIN  
-
SOURCE  
SOURCE  
GND  
SOURCE  
GND  
GND  
GND  
N.C.  
VH  
N.C.  
VH  
GND  
-
-
Internal  
Circuit  
GND  
(Note) The N.C pin must be open on the board. It means not to connect GND etc.  
www.rohm.com  
TSZ02201-0F1F0A200810-1-2  
03.Jun.2021 Rev.001  
© 2019 ROHM Co., Ltd. All rights reserved.  
23/28  
TSZ22111 • 15 • 001  
BM2P060LF-Z BM2P061LF-Z  
Operational Notes  
1. Reverse Connection of Power Supply  
Connecting the power supply in reverse polarity can damage the IC. Take precautions against reverse polarity when  
connecting the power supply, such as mounting an external diode between the power supply and the IC’s power  
supply pins.  
2. Power Supply Lines  
Design the PCB layout pattern to provide low impedance supply lines. Furthermore, connect a capacitor to ground at  
all power supply pins. Consider the effect of temperature and aging on the capacitance value when using electrolytic  
capacitors.  
3. Ground Voltage  
Ensure that no pins are at a voltage below that of the ground pin at any time, even during transient condition.  
4. Ground Wiring Pattern  
When using both small-signal and large-current ground traces, the two ground traces should be routed separately  
but connected to a single ground at the reference point of the application board to avoid fluctuations in the  
small-signal ground caused by large currents. Also ensure that the ground traces of external components do not  
cause variations on the ground voltage. The ground lines must be as short and thick as possible to reduce line  
impedance.  
5. Recommended Operating Conditions  
The function and operation of the IC are guaranteed within the range specified by the recommended operating  
conditions. The characteristic values are guaranteed only under the conditions of each item specified by the  
electrical characteristics.  
6. Inrush Current  
When power is first supplied to the IC, it is possible that the internal logic may be unstable and inrush current may  
flow instantaneously due to the internal powering sequence and delays, especially if the IC has more than one power  
supply. Therefore, give special consideration to power coupling capacitance, power wiring, width of ground wiring,  
and routing of connections.  
7. Testing on Application Boards  
When testing the IC on an application board, connecting a capacitor directly to a low-impedance output pin may  
subject the IC to stress. Always discharge capacitors completely after each process or step. The IC’s power supply  
should always be turned off completely before connecting or removing it from the test setup during the inspection  
process. To prevent damage from static discharge, ground the IC during assembly and use similar precautions  
during transport and storage.  
8. Inter-pin Short and Mounting Errors  
Ensure that the direction and position are correct when mounting the IC on the PCB. Incorrect mounting may result  
in damaging the IC. Avoid nearby pins being shorted to each other especially to ground, power supply and output pin.  
Inter-pin shorts could be due to many reasons such as metal particles, water droplets (in very humid environment)  
and unintentional solder bridge deposited in between pins during assembly to name a few.  
9. Unused Input Pins  
Input pins of an IC are often connected to the gate of a MOS transistor. The gate has extremely high impedance and  
extremely low capacitance. If left unconnected, the electric field from the outside can easily charge it. The small  
charge acquired in this way is enough to produce a significant effect on the conduction through the transistor and  
cause unexpected operation of the IC. So unless otherwise specified, unused input pins should be connected to the  
power supply or ground line.  
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TSZ02201-0F1F0A200810-1-2  
© 2019 ROHM Co., Ltd. All rights reserved.  
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TSZ22111 • 15 • 001  
03.Jun.2021 Rev.001  
BM2P060LF-Z BM2P061LF-Z  
Operational Notes – continued  
10. Regarding the Input Pin of the IC  
This IC contains P+ isolation and P substrate layers between adjacent elements in order to keep them isolated. P-N  
junctions are formed at the intersection of the P layers with the N layers of other elements, creating a parasitic diode  
or transistor. For example (refer to figure below):  
When GND > Pin A and GND > Pin B, the P-N junction operates as a parasitic diode.  
When GND > Pin B, the P-N junction operates as a parasitic transistor.  
Parasitic diodes inevitably occur in the structure of the IC. The operation of parasitic diodes can result in mutual  
interference among circuits, operational faults, or physical damage. Therefore, conditions that cause these diodes to  
operate, such as applying a voltage lower than the GND voltage to an input pin (and thus to the P substrate) should  
be avoided.  
Resistor  
Transistor (NPN)  
Pin A  
Pin B  
Pin B  
B
E
C
Pin A  
B
C
E
P
P+  
P+  
N
P+  
P
P+  
N
N
N
N
N
N
N
Parasitic  
Elements  
Parasitic  
Elements  
P Substrate  
GND GND  
P Substrate  
GND  
GND  
Parasitic  
Elements  
Parasitic  
Elements  
N Region  
close-by  
Figure 31. Example of IC Structure  
11. Ceramic Capacitor  
When using a ceramic capacitor, determine a capacitance value considering the change of capacitance with  
temperature and the decrease in nominal capacitance due to DC bias and others.  
12. Thermal Shutdown Circuit (TSD)  
This IC has a built-in thermal shutdown circuit that prevents heat damage to the IC. Normal operation should always  
be within the IC’s maximum junction temperature rating. If however the rating is exceeded for a continued period, the  
junction temperature (Tj) will rise which will activate the TSD circuit that will turn OFF power output pins. When the Tj  
falls below the TSD threshold, the circuits are automatically restored to normal operation.  
Note that the TSD circuit operates in a situation that exceeds the absolute maximum ratings and therefore, under no  
circumstances, should the TSD circuit be used in a set design or for any purpose other than protecting the IC from  
heat damage.  
13. Over Current Protection Circuit (OCP)  
This IC incorporates an integrated overcurrent protection circuit that is activated when the load is shorted. This  
protection circuit is effective in preventing damage due to sudden and unexpected incidents. However, the IC should  
not be used in applications characterized by continuous operation or transitioning of the protection circuit.  
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TSZ22111 • 15 • 001  
TSZ02201-0F1F0A200810-1-2  
03.Jun.2021 Rev.001  
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BM2P060LF-Z BM2P061LF-Z  
Ordering Information  
B M 2 P 0  
6
x
L
F
-
Z E 2  
MOSFET Ron  
0: 0.70 Ω  
1: 1.00 Ω  
Package  
SOP20A  
Z: Outsourced package  
Packaging and forming  
specification  
E2: Embossed tape and reel  
Lineup  
Part Number Marking  
BM2P060LF  
MOSFET Ron  
0.70 Ω  
Package  
SOP20A  
Orderable Part Number  
BM2P060LF-ZE2  
BM2P061LF  
1.00 Ω  
BM2P061LF-ZE2  
Marking Diagram  
SOP20A (TOP VIEW)  
Part Number Marking  
LOT Number  
Pin 1 Mark  
www.rohm.com  
© 2019 ROHM Co., Ltd. All rights reserved.  
TSZ22111 • 15 • 001  
TSZ02201-0F1F0A200810-1-2  
03.Jun.2021 Rev.001  
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BM2P060LF-Z BM2P061LF-Z  
Physical Dimension and Packing Information  
Package Name  
SOP20A  
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TSZ22111 • 15 • 001  
TSZ02201-0F1F0A200810-1-2  
03.Jun.2021 Rev.001  
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BM2P060LF-Z BM2P061LF-Z  
Revision History  
Date  
Revision  
001  
Changes  
03.Jun.2021  
New Release  
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© 2019 ROHM Co., Ltd. All rights reserved.  
TSZ22111 • 15 • 001  
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Notice  
Precaution on using ROHM Products  
1. Our Products are designed and manufactured for application in ordinary electronic equipment (such as AV equipment,  
OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you  
intend to use our Products in devices requiring extremely high reliability (such as medical equipment (Note 1), transport  
equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car  
accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or  
serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance.  
Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any  
damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific  
Applications.  
(Note1) Medical Equipment Classification of the Specific Applications  
JAPAN  
USA  
EU  
CHINA  
CLASS  
CLASSⅣ  
CLASSb  
CLASSⅢ  
CLASSⅢ  
CLASSⅢ  
2. ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor  
products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate  
safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which  
a failure or malfunction of our Products may cause. The following are examples of safety measures:  
[a] Installation of protection circuits or other protective devices to improve system safety  
[b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure  
3. Our Products are designed and manufactured for use under standard conditions and not under any special or  
extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way  
responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any  
special or extraordinary environments or conditions. If you intend to use our Products under any special or  
extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of  
product performance, reliability, etc, prior to use, must be necessary:  
[a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents  
[b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust  
[c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2,  
H2S, NH3, SO2, and NO2  
[d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves  
[e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items  
[f] Sealing or coating our Products with resin or other coating materials  
[g] Use of our Products without cleaning residue of flux (Exclude cases where no-clean type fluxes is used.  
However, recommend sufficiently about the residue.) ; or Washing our Products by using water or water-soluble  
cleaning agents for cleaning residue after soldering  
[h] Use of the Products in places subject to dew condensation  
4. The Products are not subject to radiation-proof design.  
5. Please verify and confirm characteristics of the final or mounted products in using the Products.  
6. In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse, is applied,  
confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power  
exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect  
product performance and reliability.  
7. De-rate Power Dissipation depending on ambient temperature. When used in sealed area, confirm that it is the use in  
the range that does not exceed the maximum junction temperature.  
8. Confirm that operation temperature is within the specified range described in the product specification.  
9. ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in  
this document.  
Precaution for Mounting / Circuit board design  
1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product  
performance and reliability.  
2. In principle, the reflow soldering method must be used on a surface-mount products, the flow soldering method must  
be used on a through hole mount products. If the flow soldering method is preferred on a surface-mount products,  
please consult with the ROHM representative in advance.  
For details, please refer to ROHM Mounting specification  
Notice-PGA-E  
Rev.004  
© 2015 ROHM Co., Ltd. All rights reserved.  
Precautions Regarding Application Examples and External Circuits  
1. If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the  
characteristics of the Products and external components, including transient characteristics, as well as static  
characteristics.  
2. You agree that application notes, reference designs, and associated data and information contained in this document  
are presented only as guidance for Products use. Therefore, in case you use such information, you are solely  
responsible for it and you must exercise your own independent verification and judgment in the use of such information  
contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses  
incurred by you or third parties arising from the use of such information.  
Precaution for Electrostatic  
This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper  
caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be  
applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron,  
isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).  
Precaution for Storage / Transportation  
1. Product performance and soldered connections may deteriorate if the Products are stored in the places where:  
[a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2  
[b] the temperature or humidity exceeds those recommended by ROHM  
[c] the Products are exposed to direct sunshine or condensation  
[d] the Products are exposed to high Electrostatic  
2. Even under ROHM recommended storage condition, solderability of products out of recommended storage time period  
may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is  
exceeding the recommended storage time period.  
3. Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads  
may occur due to excessive stress applied when dropping of a carton.  
4. Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of  
which storage time is exceeding the recommended storage time period.  
Precaution for Product Label  
A two-dimensional barcode printed on ROHM Products label is for ROHM’s internal use only.  
Precaution for Disposition  
When disposing Products please dispose them properly using an authorized industry waste company.  
Precaution for Foreign Exchange and Foreign Trade act  
Since concerned goods might be fallen under listed items of export control prescribed by Foreign exchange and Foreign  
trade act, please consult with ROHM in case of export.  
Precaution Regarding Intellectual Property Rights  
1. All information and data including but not limited to application example contained in this document is for reference  
only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any  
other rights of any third party regarding such information or data.  
2. ROHM shall not have any obligations where the claims, actions or demands arising from the combination of the  
Products with other articles such as components, circuits, systems or external equipment (including software).  
3. No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any  
third parties with respect to the Products or the information contained in this document. Provided, however, that ROHM  
will not assert its intellectual property rights or other rights against you or your customers to the extent necessary to  
manufacture or sell products containing the Products, subject to the terms and conditions herein.  
Other Precaution  
1. This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM.  
2. The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written  
consent of ROHM.  
3. In no event shall you use in any way whatsoever the Products and the related technical information contained in the  
Products or this document for any military purposes, including but not limited to, the development of mass-destruction  
weapons.  
4. The proper names of companies or products described in this document are trademarks or registered trademarks of  
ROHM, its affiliated companies or third parties.  
Notice-PGA-E  
Rev.004  
© 2015 ROHM Co., Ltd. All rights reserved.  
Daattaasshheeeett  
General Precaution  
1. Before you use our Products, you are requested to carefully read this document and fully understand its contents.  
ROHM shall not be in any way responsible or liable for failure, malfunction or accident arising from the use of any  
ROHM’s Products against warning, caution or note contained in this document.  
2. All information contained in this document is current as of the issuing date and subject to change without any prior  
notice. Before purchasing or using ROHM’s Products, please confirm the latest information with a ROHM sales  
representative.  
3. The information contained in this document is provided on an “as is” basis and ROHM does not warrant that all  
information contained in this document is accurate and/or error-free. ROHM shall not be in any way responsible or  
liable for any damages, expenses or losses incurred by you or third parties resulting from inaccuracy or errors of or  
concerning such information.  
Notice – WE  
Rev.001  
© 2015 ROHM Co., Ltd. All rights reserved.  

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