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HV9921 Datasheet(PDF) 8 Page - Supertex, Inc

Part # HV9921
Description  3-Pin Switch-Mode LED Lamp Driver ICs
PDF  10 Pages
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Manufacturer  SUTEX [Supertex, Inc]
Direct Link  http://www.supertex.com
Logo SUTEX - Supertex, Inc

HV9921 Datasheet(HTML) 8 Page - Supertex, Inc

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8
NR092005
HV9921/HV9922/HV9923
62.00
64.00
66.00
68.00
70.00
72.00
74.00
76.00
78.00
80.00
82.00
75
100 125 150 175 200 225 250 275
Input AC Line Voltage (VAC)
Figure 3. Typical Efficiency
ZERO VOLTAGE
TRANSITION
Figure 4. Switch-Off Transition. Ch1: VDRAIN, Ch3: IDRAIN
25mA
LEADING EDGE SPIKE
SWITCH OFF
Figure 5. Typical Efficiency
Figure 6. Switch-Off Transition. Ch1: VDRAIN, Ch3: IDRAIN
62.00
64.00
66.00
68.00
70.00
72.00
74.00
76.00
78.00
80.00
82.00
75
100 125 150 175 200 225 250 275
Input AC Line Voltage (VAC)
Figure 3. Typical Efficiency
ZERO VOLTAGE
TRANSITION
Figure 4. Switch-Off Transition. Ch1: VDRAIN, Ch3: IDRAIN
25mA
LEADING EDGE SPIKE
SWITCH OFF
Figure 5. Typical Efficiency
Figure 6. Switch-Off Transition. Ch1: VDRAIN, Ch3: IDRAIN



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