Sharp GX20 Service Manual - Page 155
IC405 VHITC7SZ08A-1L TC7SZ08A: AND GATE, Pin No., Terminal name, Input/Output, Description
View all Sharp GX20 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 155 highlights
IC404 VHILT1937++-1R (LT1937): DC - DC Pin No. 1 2 3 4 5 6 Terminal name SW GND FB SHDN# GND VIN Input/Output Output - Input Input - Input CONFIDENTIAL LED voltage output Ground LED ground Chip enable Ground Input Description of terminal VIN FB SW 6 3 1 VREF 95mV A1 1.25V COMPARATOR DRIVER Rc A2 RQ S Cc Q1 0.2 ohms SHUTDOWN RAMP GENERATOR 1.2MHz OSCILLATOR 4 SHDN 25 GND IC405 VHITC7SZ08A-1L (TC7SZ08A): AND GATE Pin No. 1 2 3 4 5 Terminal name A B GND Y VCC Input/Output Input Input - Output Input Signal input Signal input Ground Logic value output Power supply Description of terminal VCC Y 5 4 123 A B GND GX20 6 - 23
GX20
6 – 23
CONFIDENTIAL
IC404 VHILT1937++-1R (LT1937): DC - DC
IC405 VHITC7SZ08A-1L (TC7SZ08A): AND GATE
Pin No.
Terminal name
Input/Output
Description of terminal
1
SW
Output
LED voltage output
2
GND
–
Ground
3
FB
Input
LED ground
4
SHDN#
Input
Chip enable
5
GND
–
Ground
6
VIN
Input
Input
Pin No.
Terminal name
Input/Output
Description of terminal
1
A
Input
Signal input
2
B
Input
Signal input
3
GND
–
Ground
4
Y
Output
Logic value output
5
VCC
Input
Power supply
A1
RAMP
GENERATOR
COMPARATOR
DRIVER
1.2MHz
OSCILLATOR
SW
VIN
FB
1
3
GND
2
5
A2
R
Q
S
Q1
0.2 ohms
V
REF
1.25V
SHUTDOWN
95mV
Rc
Cc
SHDN
6
4
5
4
1
2
3
Y
VCC
A
B
GND