SP6851
Green-Mode Power Switch
ELECTRICAL CHARACTERISTICS
(TA=25℃, VCC=15V, unless otherwise specified.)
Symbol
Parameter
Conditions
Min.
Typ. Max. Unit
Supply Voltage ( Vcc Pin )
I
stt
Startup Current
10
2.7
2.4
20
4
uA
mA
mA
V
V
COMP = 0V
COMP = 3V
Protection
Iop
Operating Current
tripped
1.0
mA
(OLP, OVP)
UVLO (off) Min. Operating Voltage
UVLO (on ) Start Threshold Voltage
OVP Level Over Voltage Protection
Voltage Feedback ( Comp Pin )
9.0
15.0
26
10.0
16.0
27
11.0
17.0
29.5
V
V
V
Isc
Vop
Short Circuit Current
Open Loop Voltage
1.25
6
2.2
mA
V
V
TH(GM) Green Mode Threshold VCOMP
Oscillator ( RT Pin )
Frequency
OSC(GM) Green Mode Frequency
2.35
V
F
OSC
R
T
=100KΩ
60.0
68.0
22
70.0 KHz
KHz
F
Fs=65.0KHz
Fdt
Fdv
Frequency Variation versus Temp. Deviation (-40°C ~105°C)
Frequency Variation versus VCC Deviation (VCC=11V-22V)
3
1
%
%
Current Sensing ( CS Pin )
Vcs(off) Maximum Input Voltage
0.8
1
0.85
280
0.9
V
nS
MΩ
nS
Leading Edge Blanking Time
T
LEDD
Zcs
Input impedance
T
PD
Delay to Output
100
MOSFET
DC (Max) Maximum Duty Cycle
DC (Min) Minimum Duty Cycle
70
75
0
80
%
%
V
DSS
Drain-Source Breakdown Voltage
Drain-Source Leakage Current
V
V
V
V
V
GS=0V, ID=250uA
GS=0V, VDS=550V
GS=10V, ID=1A
650
V
uA
Ω
IDSS
10
4.95
1.5
RDS(ON) On-State Resistance
V
SD
GS=0V, IS=1.4A
V
Forward On Voltage
GS=0V, VDS=25V,
Co
27
pF
Output capacitance
f=1.0MHz
Tr
Tf
50
30
200
120
nS
nS
Rising Time
Falling Time
OLP ( Over Load Protection )
OLP Trip Level
TLOLP
TDOLP
5.0
60
V
mS
OLP Delay Time (note)
Note: The OLP delay time is proportional to the period of switching cycle. So that, the lower RT value will set the higher
switching frequency and the shorter OLP delay time.
2012/08/09 Ver.2
Page 5
SYNC-POWER [ SYNC POWER CROP. ]
