BM1P107FJ Datasheet PDF - ROHM Semiconductor
Part Number | BM1P107FJ | |
Description | PWM Control IC | |
Manufacturers | ROHM Semiconductor | |
Logo | ||
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AC/DC Drivers
PWM Control IC
BM1P107FJ
● General
The PWM control IC for AC/DC “BM1P107FJ”
provides an optimum system for all products that
include an electrical outlet.
A built-in start circuit that withstands 650 V helps to
keep power consumption low. Both isolated and
non-isolated versions are supported, making for
simpler design of various types of low-power
converters. Switching MOSFET and current detection
resistors are external devices, thus achieving a higher
degree of freedom in power supply design. The
switching frequency is set as fixed. Since current mode
control is used, a current limit is imposed in each cycle,
and excellent performance is demonstrated in
bandwidth and transient response. With a light load,
frequency is reduced and higher efficiency is realized.
A frequency hopping function is also built in,
contributing to low EMI.
Also on chip are soft start and burst functions, a
per-cycle overcurrent limiter, VCC overvoltage
protection, overload protection, and other protection
functions.
● Basic Specifications
Operating power supply voltage range: VCC 8.9 V to 26.0 V
VH: to 600 V
Operating current:
Normal: 0.60 mA (Typ.)
Burst mode: 0.35 mA (Typ.)
Oscillation frequency:
BM1P107FJ: 100 kHz (Typ.)
Operating temperature range:
-40°C to +85°C
● Application circuit
● Features
PWM frequency: 100 kHz
PWM current mode method
Frequency hopping function
Burst operation during light load / Frequency
reduction function
650 V start circuit
VCC pin undervoltage protection
VCC pin overvoltage protection
CS pin open protection
CS pin Leading-Edge-Blanking function
Per-cycle overcurrent limiter function
Overcurrent limiter with AC voltage compensation
function
Soft start function
Secondary overcurrent protection circuit
● Package
SOP-J8
4.90 mm × 6.00 mm × 1.65 mm pitch 1.27 mm
(Typ.)
(Typ.) (Typ.)
(Typ.)
● Applications
AC adapters, TVs, and household appliances
(vacuum cleaners, humidifiers, air cleaners, air
conditioners, IH cooking heaters, rice cookers, etc.)
● Line-up
Figure 1.Application Circuit
Frequency VCCOVP VCC recharge
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BM1P105FJ
BM1P106FJ
BM1P107FJ
BM1P108FJ
65kHz
65kHz
65kHz
65kHz
65kHz
65kHz
65kHz
65kHz
100kHz
100kHz
100kHz
100kHz
100kHz
100kHz
100kHz
100kHz
Auto-restart
Latch
Auto-restart
Latch
Auto-restart
Latch
Auto-restart
Latch
Auto-restart
Latch
Auto-restart
Latch
Auto-restart
Latch
Auto-restart
Latch
〇
〇
〇
〇
×
×
×
×
〇
〇
〇
〇
×
×
×
×
X-cap
discharge
〇
〇
×
×
×
×
×
×
〇
〇
×
×
×
×
×
×
Brown-out
〇
〇
×
×
〇
〇
×
×
〇
〇
×
×
〇
〇
×
×
○ Product structure:Silicon monolithic integrated circuit
.www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product is not designed for protection against radioactive rays
1/26
TSZ02201-0F2F0A200170-1-2
2.Oct.2013.Rev.001
|
|
BM1P107FJ
● Block Diagram
+
FUSE
-
Datasheet
8
STARTER
6
VCC OVP
13.5V
/ 8.2V
+
-
VCC UVLO
+
-
100us
Filter
27.5V
4.0V
Line Reg
Internal Block
12V Clamp
Circuit
S
RQ
DRIVER
5
PWM Control
4.0V
30k OLP
2 - 64ms
+ Filter
Burst
Comparator
-
+
Current
Limiter
+
-
Leading Edge
Blanking
(typ=250ns)
1M
3
PWM
Comparator
-
+
MAX
DUTY
OSC
+ ( 65kHz)
(100kHz)
Soft Start
AC Input
Compensation
Frequency
Hopping
Slope
Compensation
4
Figure 3. Block Diagram
FeedBack
With
Isolation
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/26
TSZ02201-0F2F0A200170-1-2
2.Oct.2013.Rev.001
Preview 5 Page |
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Information | Total 30 Pages | |
Link URL | [ Copy URL to Clipboard ] | |
Download | [ BM1P107FJ.PDF Datasheet ] |
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