pq1cg41h2rz Sharp Microelectronics of the Americas, pq1cg41h2rz Datasheet - Page 3

• Manufacturer Part Number: pq1cg41h2rz
• Description: To-220 Type Chopper Regulator Built-in 300khz Oscillation Circuit
• Manufacturer: Sharp Microelectronics of the Americas

Chopper Regulators
Fig.3 Block Diagram
Fig.4 Step Down Type Circuit Diagram
Fig.5 Polarity Inversion Type Circuit Diagram
8 to 35V
5 to 30V
V
IN
V
IN
1
V
IN
Overcurrent
100µF
detection
Overheat
detection
C
circuit
circuit
IN
+
100µF
1
+
C
1
IN
PQ1CG41H2
PQ1CG41H2
regulator
Voltage
4
3
F/F
PWM COMP.
4
3
3
Q
S
R
COM
C
C
2
5
S
_
+
2
5
ON/OFF
S
ON/OFF control signal
circuit
ON/OFF control signal
R
S
R
S
_
+
ERROR AMP.
D
D
V
L=65µH
ref
L=65µH
PQ1CG41H2FZ/PQ1CG41H2RZ
3kΩ
1kΩ
R
R
3kΩ
1kΩ
2
1
R
R
2
1
R
S
R
≤50kΩ
S
2
5
4
≤50kΩ
470µF
2 200µF
V
ON/OFF control
O
OUT
C
adj
O
C
O
+
+
V
V
O
O
−5V
5V
Load
Load