ld7578j Leadtrend Technology, ld7578j Datasheet - Page 14
ld7578j
Manufacturer Part Number
ld7578j
Description
High Voltage Green-mode Pwm Controller With Over Temperature Protection
Manufacturer
Leadtrend Technology
Datasheet
1.LD7578J.pdf
(19 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ld7578jGS
Manufacturer:
LEADTREN
Quantity:
20 000
LD7578J
GND.
And such latchup will easily damage the chip
because of the equivalent short-circuit induced.
With the Leadtrend’s proprietary Hi-V technology, there is
no such parasitic SCR in LD7578J.
Fig. 23 shows the
equivalent circuit of LD7578J’s Hi-V structure.
The
LD7578J has higher capability to sustain negative voltage
than similar products. Nevertheless, a 40KΩ resistor is
recommended to implement on the Hi-V path as a current
limit resistor no matter what negative voltage is present in
any situation.
Fig. 23
Fig. 22
14
Leadtrend Technology Corporation
www.leadtrend.com.tw
LD7578J-DS-00 March 2009