SP6837 Datasheet, PDF (6/8 Pages) SYNC POWER Crop. – LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER

SP6837
LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER
ELECTRICAL CHARACTERISTICS
(T_A=25℃, V_CC=15V, unless otherwise specified.)
Symbol
UVLO SECTION
Parameter
Conditions
VTH(ST) Start-up Threshold
VOPR(min) Minimal Operating Voltage
Reference Voltage
VBIAS BIAS Pin Voltage
STANDBY CURRENT SECTION)
IsT Start-up Current
ICC(OPR) Operating Current
DRIVE OUTPUT SECTION
IOUT OUT Maximum Current Source
CURRENT SENSE SECTION
VCS Current Sense Threshold
RBIAS=200KΩ , After Turn On
VCC=VTH(ST)-0.5V,
RBIAS=200KΩ
Before start-up
RBIAS=200KΩ
RBIAS=200KΩ
VCS(PRE) Pre-Current Sense
Leading Edge Blanking
FEEDBACK INPUT SECTION
IFB
Feedback Pin Input Leakage
Current
VFB=4V
VFB Feedback Threshold
VFB(EN) Enable Turn-on Voltage
OUTPUT VOLTAGE COMPENSATION SECTION
VCPR CPR Voltage
Dons (Tons/T):
from 55% to 0.02%
ICPR CPR Sink Current
PROTECTION SECTION
VFB(OVP) Over Voltage Protection
Min. Typ. Max. Unit
17 18.5 21
V
8.2 9.2 10.2 V
1.0 1.1 1.2 V
1.5 uA
390 480 uA
20 30 40 mA
490 513 535 mV
390 413 435 mV
500
ns
2.0 3.0 4.0 uA
3.97 4.03 4.09 V
-2.0 -1.7 -1.4 V
1.5
3.5 V
200 uA
7
8
9
V
2014/03/12 Ver.1
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