SP6850
Green-Mode PWM Controller
ELECTRICAL CHARACTERISTICS
(TA=25℃, VCC=15V, unless otherwise specified.)
Symbol
Parameter
Conditions
Min.
Typ.
Max. Unit
Supply Voltage ( Vcc Pin )
Istt
Iop
Startup
Operating Current
Current
8
2
10.0
16.0
20
4
11.0
17.0
36
uA
mA
V
V
V
VCOMP = 3V
UVLO (off) Min. Operating Voltage
UVLO (on ) Start Threshold Voltage
OVP Level Over Voltage Protection
Voltage Feedback ( Comp Pin )
9.0
15.0
28
Isc
Vop
Short Circuit Current
Open Loop Voltage
2.2
5.0
3.0
mA
V
VTH(GM) Green Mode Threshold VCOMP
2.35
V
Oscillator ( RT Pin )
FOSC
Frequency
RT=100KΩ
Fs=65.0KHz
60.0
65.0
20
75.0 KHz
KHz
FOSC(GM) Green Mode Frequency
Fdt
Fdv
Frequency Variation versus Temp. Deviation (-40°C ~105°C)
Frequency Variation versus VCC Deviation (VCC=11V-25V)
3
1
%
%
Current Sensing ( CS Pin )
SP6850BD8TG
SP6850BS26RG
SP6850AD8TG
SP6850AS26RG
0.8
0.7
0.85
0.75
0.9
0.8
Vcs(off) Maximum Input Voltage
V
KΩ
nS
Zcs
TPD
Input impedance
Delay to Output
50
150
Gate Driver Output ( OUT Pin )
DC (Max) Maximum Duty Cycle
DC (Min) Minimum Duty Cycle
70
8
75
0
80
1
%
%
VCC=15V,
Io=20mA
VCC=15V,
Io=20mA
VOL
V
V
Output Low Level
Output High Level
VOH
Tr
Tf
Load Cap=1000pF
Load Cap=1000pF
50
30
200
120
nS
nS
Rising Time
Falling Time
2007/04/10 Ver.3
Page 5
SYNC-POWER [ SYNC POWER CROP. ]
