PQ1CG21H2FZ_01 SHARP [Sharp Electrionic Components], PQ1CG21H2FZ_01 Datasheet - Page 4

• Manufacturer Part Number: PQ1CG21H2FZ_01
• Description: Chopper Regulators TO-220 Type Chopper Regulators
• Manufacturer: SHARP [Sharp Electrionic Components]

Chopper Regulators
Fig.10 Oscillation Frequency Fluctuation vs.
Fig.12 Threshold Voltage vs. Junction
Fig.14 Block Diagram
1
V
2.5
1.5
0.5
10
IN
2
0
2
4
6
8
3
2
1
0
20
50
Junction Temperature
Temperature
V
V
IN
O
Overcurrent
25
detection
Overheat
detection
0
5V
12V
circuit
circuit
Junction temperature T
Junction temperature T
0
20
25
40
V
V
V
TH(H)
TH(L)
TH(ON)
50
60
regulator
75
Voltage
F/F
PWM COMP.
80
j
j
( C)
( C)
100
3
Q
S
V
100
R
COM
IN
125
12V
ON/OFF
120
circuit
150
ERROR AMP.
Fig.11 Overcurrent Detecting Level
Fig.13 Operating Dissipation Current vs.
V
ref
10
6
4
2
0
2
4
6
8
9
8
7
6
5
20
0
PQ1CG21H2FZ/PQ1CG21H2RZ
Fluctuation vs. Junction Temperature
Input Voltage
I
O
0
0.2A
Junction temperature T
10
20
2
5
4
Input voltage V
No load
V
ON/OFF
V
OUT
ADJ
I
O
40
1A
20
60
IN
(V)
80
j
( C)
30
100
T
V
j
O
25 C
5V
120
40