LD7750BGS Просмотр технического описания (PDF) - Unspecified
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производитель
LD7750BGS Datasheet PDF : 19 Pages
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Pin Configuration
SOP-7 (TOP VIEW)
SOP-8/ DIP-8 (TOP VIEW)
LD7750B
8
65
TOP MARK
YYWWPP
1 234
8 7 65
TOP MARK
YYWWPP
1 2 34
YY:
WW:
PP:
Year code
Week code
Production code
Ordering Information
Part number
LD7750B GS
Package
SOP-8
Green package
Top Mark
LD7750BGS
LD7750B GR
SOP-7
Green package LD7750BGR
LD7750B GN
DIP-8
Green package
The LD7750B is ROHS compliant and Halogen Free.
LD7750BGN
Protection Mode
Part number
LD7750B
Switching Freq.
100kHz
VCC OVP
Latch
OLP
Auto recovery
Shipping
2500 /tape & reel
2500 /tape & reel
3600 /tube /Carton
OTP Pin
Latch
Pin Descriptions
SOP-8, DIP-8 SOP-7
1
1
2
2
3
3
4
4
5
5
6
6
7
8
8
NAME
OTP
COMP
CS
GND
OUT
VCC
NC
HV
FUNCTION
Pulling this pin below 0.95V will shutdown the controller to enter latch
mode until the AC power-on recycles. Connecting a NTC between this
pin and ground will achieve OTP protection function. Let this pin float to
disable the latch protection.
Voltage feedback pin. Connecting a photo-coupler with it can close
control loop and achieve regulation.
Current sense pin, for sensing the MOSFET current.
Ground.
Gate drive output to drive the external MOSFET.
Supply voltage pin.
Unconnected Pin.
Connect this pin to a positive terminal of bulk capacitor to provide the
startup current for the controller. When Vcc voltage trips the UVLO(on),
this HV loop will be turned off to reduce the power loss on the startup
circuit.
Leadtrend Technology Corporation
LD7750B-DS-01 OCT. 2011
2
www.leadtrend.com.tw
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