ld7575ps Leadtrend Technology, ld7575ps Datasheet - Page 18

• Manufacturer Part Number: ld7575ps
• Description: Green-mode Pwm Controller With High-voltage Start-up Circuit
• Manufacturer: Leadtrend Technology

Leadtrend Technology Corporation
LD7575-DS-04b November 2007
03
04
04a
04b
11/28/’05
1/22/’07
6/5/2007
11/29/2007
1.
2.
Revision: Block Diagram
HV=500V (supplement to HV current source/ off state leakage current)
Green package option
Page3, Correction on the block diagram by modifying the AND gate (following the
PWM comparator) to OR gate.
Page 5, Correction on the parameters on “Gate Drive Output” because LD7575 can
support to 500mA driving capability but the parameters in the previous datasheet are
for 300mA driving current. The output high level will be updated from min. 8V to min.
9V. The rising time will be updated from max. 200nS to max. 160nS. The falling time
will be updated from max. 100nS to max. 60nS. All these parameters are for
correction and no design change on the related circuits.
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LD7575