SP6837S8RGB [SYNC-POWER]
LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER;
| 型号： | SP6837S8RGB |
| 厂家： | 
SYNC POWER CROP. |
| 描述： | LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER |
| 文件： | 总8页 (文件大小：442K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SP6837
LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER
DESCRIPTION
FEATURES
The SP6837 has the built-in programmable cable
voltage drop compensation function, which
make it flexible to accommodate various cables
with different gauges and lengths.
· Primary Side Control for Eliminating Opto-
coupler and Secondary CV/CC Control Circuitry
· 30mW No-load Input Power
· Programmable Output Cable Voltage Drop
Compensation
· Proprietary CC Tightening Technique to Achieve
Vertical CC Profile
· Compensation for External Component
Temperature Variations
· Flyback Topology in DCM Operation
· Random Frequency Adjustment to Reduce
System EMI
· Built-in Soft Start
· Over Voltage Protection
The SP6837provides accurate constant voltage,
constant current (CV/CC) regulation without
requiring an opto-coupler and secondary control
circuitry. It also eliminates the need of loop
compensation circuitry while maintaining
stability.
The SP6837 achieves excellent regulation and
high average efficiency, yet meets the
requirement for no-load consumption less than
30mW.
· Short Circuit Protection
The SP6837is a high performance AC/DC power
supply controller for battery charger and adapter
applications. The device uses Pulse Frequency
Modulation (PFM) method to build
discontinuous conduction mode (DCM) flyback
power supplies.
· SOIC-8 Package
APPLICATIONS
· Adapter/Chargers for Cell/Cordless Phones,
PDAs, MP3 and Other Portable Apparatus
· LED Driver
· Standby and Auxiliary Power Supplies
The SP6837is available in SOIC-8 package.
·
2014/03/12 Ver.1
Page 1
SP6837
LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER
2014/03/12 Ver.1
Page 2
SP6837
LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER
2014/03/12 Ver.1
Page 3
SP6837
LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER
2014/03/12 Ver.1
Page 4
SP6837
LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER
ORDERING INFORMATION
Part Number
Package
Part Marking
SP6837D8TGB
SP6837S8RGB
DIP-8P
SOP-8P
SP6837
SP6837
※ SP6837D8TGB : Tube ; Pb – Free ; Halogen-Free
※ SP6837S8RGB : Tape Reel ; Pb – Free ; Halogen-Free
PART MARKING
SOIC-8
ABSOULTE MAXIMUM RATINGS (TA=25℃, unless otherwise specified.)
The following ratings designate persistent limits beyond which damage to the device may occur.
Symbol
VCC
Parameter
Value
-0.3 ~ 36
-0.3 ~ 7.0
Internally limiter
2
Unit
V
V
A
KV
V
DC Supply Voltage
VCOMP / RT / CS COMP / RT / CS Voltage
OUT
Output Current at OUT
Human Body Model
Machine Model
FB input
ESD
200
-40 ~ 10
150
FB
TJ
TSTG
V
Operating Junction Temperature Range
Storage Temperature Range
Pb-Free Lead Soldering Temperature for 5 sec.
℃
℃
℃
-65 ~ 150
TLEAD
300
RӨJC
Thermal Resistance Junction – Case (*)
190
℃/W
(*)Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.
These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated
under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods
may affect device reliability.
2014/03/12 Ver.1
Page 5
SP6837
LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER
ELECTRICAL CHARACTERISTICS
(TA=25℃, VCC=15V, unless otherwise specified.)
Symbol
Parameter
Conditions
Min. Typ. Max.
Unit
UVLO SECTION
VTH(ST)
Start-up Threshold
17
18.5
9.2
21
V
V
VOPR(min) Minimal Operating Voltage
8.2
10.2
Reference Voltage
VBIAS
BIAS Pin Voltage
RBIAS=200KΩ , After Turn On
1.0
1.1
1.2
V
STANDBY CURRENT SECTION)
VCC=VTH(ST)-0.5V,
RBIAS=200KΩ
Before start-up
IsT
Start-up Current
1.5
uA
uA
ICC(OPR)
Operating Current
RBIAS=200KΩ
390
30
480
DRIVE OUTPUT SECTION
IOUT
OUT Maximum Current Source
RBIAS=200KΩ
20
40
mA
CURRENT SENSE SECTION
VCS
Current Sense Threshold
Pre-Current Sense
490
390
513
413
500
535
435
mV
mV
ns
VCS(PRE)
Leading Edge Blanking
FEEDBACK INPUT SECTION
Feedback Pin Input Leakage
Current
IFB
VFB=4V
2.0
3.0
4.0
uA
VFB
Feedback Threshold
Enable Turn-on Voltage
3.97 4.03 4.09
V
V
VFB(EN)
-2.0
-1.7
-1.4
OUTPUT VOLTAGE COMPENSATION SECTION
Dons (Tons/T):
from 55% to 0.02%
VCPR
ICPR
CPR Voltage
1.5
3.5
V
CPR Sink Current
200
uA
PROTECTION SECTION
VFB(OVP)
7
8
9
V
Over Voltage Protection
2014/03/12 Ver.1
Page 6
SP6837
LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER
Typical Performance Characteristics
2014/03/12 Ver.1
Page 7
SP6837
LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER
Information provided is alleged to be exact and consistent. SYNC Power Corporation presumes no responsibility for the
penalties of use of such information or for any violation of patents or other rights of third parties that may result from its use.
No license is granted by allegation or otherwise under any patent or patent rights of SYNC Power Corporation. Conditions
mentioned in this publication are subject to change without notice. This publication surpasses and replaces all information
previously supplied. SYNC Power Corporation products are not authorized for use as critical components in life support
devices or systems without express written approval of SYNC Power Corporation.
© The SYNC Power logo is a registered trademark of SYNC Power Corporation
© 2004 SYNC Power Corporation – Printed in Taiwan – All Rights Reserved
SYNC Power Corporation
7F-2, No.3-1, Park Street
NanKang District (NKSP), Taipei, Taiwan, 115, R.O.C
Phone: 886-2-2655-8178
Fax: 886-2-2655-8468
http://www.syncpower.com
2014/03/12 Ver.1
Page 8
相关型号：
©2020 ICPDF网 联系我们和版权申明