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OB2530NのメーカーはOn-Bright Electronicsです、この部品の機能は「High Precision CC/CV Primary-Side Power Switch」です。 |
部品番号 | OB2530N |
| |
部品説明 | High Precision CC/CV Primary-Side Power Switch | ||
メーカ | On-Bright Electronics | ||
ロゴ | |||
このページの下部にプレビューとOB2530Nダウンロード(pdfファイル)リンクがあります。 Total 10 pages
OB2530N
High Precision CC/CV Primary-Side Power Switch
GENERAL DESCRIPTION
OB2530N is a high performance offline PSR
power switch for low power AC/DC charger and
adapter applications. It operates in primary-side
sensing and regulation. Consequently,
opto-coupler and TL431 could be eliminated.
Proprietary Constant Voltage (CV) and Constant
Current (CC) control is integrated as shown in the
figure below.
In CC control, the current and output power setting
can be adjusted externally by the sense resistor
Rs at CS pin. In CV control, multi-mode operations
are utilized to achieve high performance and high
efficiency. In addition, good load regulation is
achieved by the built-in cable drop compensation.
Device operates in PFM in CC mode at large load
condition and it operates in PWM with frequency
reduction at light/medium load. The chip
consumes very low operation current. It achieves
less than 75mW standby power to meet strict
standby power standard.
OB2530N offers comprehensive protection
coverage with auto-recovery feature including
Cycle-by-Cycle current limiting, VDD over voltage
protection, feedback loop open protection, short
circuit protection, built-in leading edge blanking,
VDD under voltage lockout (UVLO), OTP etc.
OB2530N is offered in SOP7 packages.
FEATURES
Primary-side sensing and regulation without
TL431 and opto-coupler
High precision constant voltage and current
regulation at universal AC input
Multi-mode PWM/PFM operation for efficiency
improving
Integrated 1A 620V MOSFET
Good dynamic response
Programmable CV and CC regulation
Built-in primary winding inductance
compensation
Programmable cable drop compensation
No need for control loop compensation
Audio noise free operation
Built-in leading edge blanking (LEB)
Ultra low start-up current and low operating
current
Comprehensive protection coverage with
auto-recovery
On-chip OTP
VDD over voltage protection
VDD under voltage lockout with
hysteresis (UVLO)
Cycle-by-Cycle current limiting
Feedback loop open protection
Output short circuit protection
APPLICATIONS
Low Power AC/DC offline SMPS for
Cell Phone Charger
Digital Cameras Charger
Small Power Adapter
Auxiliary Power for PC, TV etc.
Linear Regulator/RCC Replacement
Figure.1. Typical CC/CV Curve
TYPICAL APPLICATION
©On-Bright Electronics
Confidential
-1-
Preliminary Datasheet
OB_DOC_DS_2530N02
1 Page Marking Information
OB2530N
High Precision CC/CV Primary-Side Power Switch
YWWZZZ
OB2530NCP
S
Y:Year Code
WW:Week Code(01-52)
ZZZ:Lot Code
C:SOP7 Package
P:Pb-free Package
S:Internal Code(Optional)
TERMINAL ASSIGNMENTS
Pin Num. Pin Name I/O Description
1
VDD
P Power Supply
2 NC
3
FB
I
The voltage feedback from auxiliary winding. Connected to resistor
divider from auxiliary winding reflecting output voltage.
4 CS I Power MOSFET source
5/6
Drain
O Drain of internal power MOSFET
7
GND
P Ground
©On-Bright Electronics
Confidential
-3-
Preliminary Datasheet
OB_DOC_DS_2530N02
3Pages OB2530N
High Precision CC/CV Primary-Side Power Switch
CHARACTERIZATION PLOTS
1000
800
600
400
200
0
7
Vdd(V) vs Ivdd(uA)
9 11 13 15 17 19
VDD(V)
UVLO(ON)(V) vs Tem perature
9.00
8.80
8.60
8.40
8.20
8.00
-40 -10 20 50 80 110 140
Tem perature(℃)
Ivdd_startup(uA) vs Tem perature
10.00
8.00
6.00
4.00
2.00
0.00
-40 -10 20 50 80 110 140
Tem perature(℃)
UVLO(OFF)(V) vs Tem perature
19.00
18.20
17.40
16.60
15.80
15.00
-40 -10 20 50 80 110 140
Tem perature(℃)
Vref(V) vs Tem perature
2.600
2.540
2.480
2.420
2.360
2.300
-40 -10 20 50 80 110 140
Tem perature(℃)
Vocp(V) vs Tem perature
0.600
0.560
0.520
0.480
0.440
0.400
-40 -10 20 50 80 110 140
Tem perature(℃)
Icable(uA) vs Tem perature
46.00
44.80
43.60
42.40
41.20
40.00
-40 -10 20 50 80 110 140
Tem perature(℃)
©On-Bright Electronics
Confidential
-6-
Preliminary Datasheet
OB_DOC_DS_2530N02
6 Page | |||
ページ | 合計 : 10 ページ | ||
|
PDF ダウンロード | [ OB2530N データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
OB2530N | High Precision CC/CV Primary-Side Power Switch | On-Bright Electronics |
OB2530P | High Precision CC/CV Primary-Side Power Switch | On-Bright Electronics |