RS2051(2010) Просмотр технического описания (PDF) - Orister Corporation
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RS2051 Datasheet PDF : 11 Pages
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Page No. : 4/11
Oscillator (RI Pin)
FOSC
FPFM
DCMAX_W
DCMAX_F
ΔFTEMP
TBLANK
FPFM
Normal Frequency
PFM Frequency
Maximum Duty Cycle PWM
Maximum Duty Cycle PFM
Frequency Temp. Stability
Leading-Edge Blanking Time
Frequency PFM
RI=100Kohm
RI=100Kohm
RI=100Kohm
RI=100Kohm
-30~100℃
RI=100Kohm
60
65
70
KHz
22
KHZ
78
%
78
%
5
%
300
nS
-4
4
%
GATE Drive Output (GATE Pin)
VOL
VOH
TR1
TF1
TR2
TF2
TR3
TF3
TR4
TF4
VGCLAMP
Output Low Level
Output High Level
Rising Time
Falling Time
Rising Time
Falling Time
Rising Time
Falling Time
Rising Time
Falling Time
Output Clamp Voltage
VDD=16V, IO=20mA
0.8
V
VDD=16V, IO=20mA
10
V
CL=500pF
123
ns
CL=500pF
71
ns
CL=1000pF
248
ns
CL=1000pF
116
ns
CL=1500pF
343
ns
CL=1500pF
153
ns
CL=2000pF
508
ns
CL=2000pF
209
ns
VDD=20V
18.0
V
Frequency Jiggling
FJiggling
Low EMI frequency
RI=100Kohm
65
KHz
∆f_osc Frequency modulation range / Base frequency
RI=100Kohm
-3
3
%
Notice: The drive current of GATE pin is a variable value, which is decided by I = K(VVDD − VGATE − 2.8)2 (Among these, K
is a invariable coefficient，VGATE is the voltage of GATE pin, VVDD is the voltage of VDD pin)；So the higher the VDD voltage is
and the lower the output voltage is, the bigger the drive transient current is. When the GATE voltage is 0V and the VDD voltage
is 13V, the output drive current would over 120mA. The output driver current would decrease with increasing of the GATE
voltage.
DS-RS2051-09 No v, 2010
www.Orister.com
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