datasheetbank_Logo     Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site

PQ1CZ1 View Datasheet(PDF) - Sharp Electronics

Part NameDescriptionManufacturer
PQ1CZ1 Surface Mount Type Chopper Regulator Sharp
Sharp Electronics Sharp
PQ1CZ1 Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
Chopper Regulators
PQ1CZ1
In the external area of the safety operation area shown by the derating curve, the overheat protection circuit may operate to
shut-down output. However, please avoid keeping such condition for a long time.
s ON/OFF Control Terminal
In the following circuit,when ON/OFF control terminal t becomes low by switching transistor Tr on, output voltage may
be turned OFF and the device becomes stand-by mode. Dissipation current at stand-by mode becomes Max.400µA.
<Soft start>
When capacitor Cs is attached, output pulse gradually expanded and output voltage will start softly.
<ON/OFF control with soft startup>
For ON/OFF control with capacitor CS, be careful not to destroy a transistor Tr by discharge current from CS, adding a
resistor restricting discharge current of CS.
4
1
2
L
IO
VO
5
R2
+
VIN
3
CS
CIN
D
+
Load
CO
R1
Tr
ON/OFF control signal
(V)
3.55
(VTHH)
2.25
(VTHL)
1.4
(VTHON)
0
Step Down Voltage Circuit
Duty
DMAX
Duty
0%
1 Stand-by mode
2 OFF-state
3 Soft start
1
2
3
time
Direct download click here

 

Share Link : 

All Rights Reserved © datasheetbank.com 2014 - 2019 [ Privacy Policy ] [ Request Datasheet ] [ Contact Us ]