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[. . . ] PQ1CZ41H2ZxH
PQ1CZ41H2ZxH
TO-220 Type Chopper Regulator, built-in 300kHz oscillation circuit
Features
1. Maximum switching current: 1. 5A 2. Built-in ON-OFF control function 3. Built-in soft start function to suppress overshoot of output voltage in power on sequence or ON/OFF control sequence 4. Built-in oscillation circuit (Oscillation frequency:TYP. 300kHz) 5. Built-in overheat protection function, overcurrent protection function 6. SC-63 Surface Mount Type package 7. Variable output voltage (Output variable range: Vref to 35V/Vref to 30V) [Possible to select step-down output/inversing output according to external connection circuit] 8. P Q 1CZ41H2ZZH: Sleeve-packaged product P Q 1CZ41H2ZPH: Tape-packaged product 9. RoHS directive compliant
Outline Dimensions
(Unit:mm)
6. 6 MAX. [. . . ] Input Voltage
100 Tj=25°C
Fig. 5 Output Saturation Voltage vs. Switching Current
1. 6
Output saturation voltage VSAT(V)
VO12V, IO=1A VO12V, IO=0. 2A
Tj=25°C
1. 4 1. 2 1 0. 8 0. 6 0. 4 0. 2 0 0 0. 5 1 1. 5
90
Efficiency (%)
80
70
VO5V, IO=0. 2A VO5V, IO=1A
60
50
0
10
20
30
40
Input voltage VIN (V)
Switching current ISW (A)
Fig. 6 Stand-by Current vs. Input Voltage
250 Tj=25°C
Fig. 7 Reference Voltage Fluctuation vs. Junction Temperature
2
Reference voltage fluctuation (%)
1. 5 1 0. 5 0 -0. 5 -1 -1. 5 -2 -40 -25 0 25 50 75
VIN=12V VO5V
Standby current ISD(A)
200
150
100
50
0
0
10
20
30
40
100
125
Intput voltage VIN (V)
Junction temperature Tj (°C)
Fig. 8 Load Regulation vs. Output Current
1. 5 Tj=25°C VIN=12V VO5V
Fig. 9 Line Regulation vs. Input Voltage
1. 5
Load regulation RegL(%)
Line regulation RegI (%)
1
1
0. 5
0. 5
0
0 Tj=25°C VO=5V IO0. 2A 0 10 20 30 40
-0. 5
0
0. 2
0. 4
0. 6
0. 8
1
1. 2
-0. 5
Output current IO (A)
Input voltage VIN (V)
Sheet No. : OP06041
3
PQ1CZ41H2ZxH
Fig. 10 Oscillation Frequency Fluctuation vs. Junction Temperature
Oscillation frequency fluctuation fO(%)
10 VIN=12V VO5V
Fig. 11 Overcurrent Detecting Level Fluctuation vs. Junction Temperature
Overcurrent detecting level fluctuation (%)
10 Tj=25°C 5
5
0
0
-5
-5
-10 -40 -25
0
25
50
75
100
125
-10 -40 -25
0
25
50
75
100
125
Junction temperature Tj (°C)
Junction temperature Tj (°C)
Fig. 12 On Threshold Voltage vs. [. . . ] Vref
4
Oadj
Overheat detection circuit 3
COM
Fig. 16 Step Down Type Circuit Diagram
PQ1CZ41H2ZxH
L
VO
5V
+
R2
3k +
VIN
8 to 35V
CIN
CS
RS
Load
D
CO R1
1k
ON/OFF control signal
Fig. 17 Polarity Inversion Type Circuit Diagram
0. 471F 100k 680k
4 1 2
L 65H
PQ1CZ41H2ZxH
5 VIN 530V + 3 CIN 100F CS RS D
R2 3k + CO 2200F Load
R1 1k
RS50k ON/OFF control signal
VO
-5V
In case that polarity is reverse, depending on the conditions, there is cases that output voltage can not gain, please use this device after confirming the output voltage at the actual conditions.
Sheet No. : OP06041
5 [. . . ]
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