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參數(shù)資料
| 型號(hào)： | BP5222X |
| 元件分類： | 參考電壓二極管 |
| 英文描述： | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| 中文描述： | 250 的低電流運(yùn)算，低反向泄露，低噪聲穩(wěn)壓二極管 |
| 文件頁(yè)數(shù)： | 6/8頁(yè) |
| 文件大小： | 97K |
| 代理商： | BP5222X |
74
BP5220 / BP5221 / BP5222 /
BP5220X / BP5221X / BP5222X
Operation notes
(1) The output current should be reduced according to an increase in the input voltage or ambient
temperature. Use the modules within the derating curve range.
(2) Pins 5 and 7 are no connected.
(3) No circuit is installed in the modules to protect against over output currents. Take physical safety measures
such as fusing if short-circuit loading is probable.
(4) A large rush current may flow in the module when the input voltage is applied or the output ON / OFF is
controlled with pin 4 without a capacitor such as C1 in application 4. Operating within the safe operation
ranges shown in Figs.12, 15, and 18.
The safe operation range is determined by the safe operation range of the internal switching transistor.
The amount of rush current depends on the output impedance of the input power supply and capacitors
connected to the module outputs. The pulse load on the internal switching transistor at the start of operation
can be reduced by using the protection circuit of application 1 or the slow start circuit of application 4.
Electrical characteristic curves
BP5220, BP5220X
1200
BP5221, BP5221X
0
25
50
70
1000
O
800
600
400
200
AMBIENT TEMPERATURE : Ta(
°
C)
100
120
V
IN
=8~15V
V
IN
=34V
V
IN
=38V
V
IN
=25V
V
IN
=30V
Fig.10 Derating curve
100
80
60
40
20
0
200
400
600
800
1000
OUTPUT CURRENT : Io (A)
E
η
V
IN
=8V
V
IN
=23V
V
IN
=38V
Fig.11 Efficiency
20
10
5
3
2
1
0.5
0.3
0.2
0.11
2
3
5
10
20 30
50
Pw=0.2ms
Pw=1ms
VOLTAGE BETWEEN PIN2 AND PIN9 (V)
C
Tc=25
°
C
SINGLE PULSE
Fig.12 Safety operation range
0
25
50
70
O
AMBIENT TEMPERATURE : Ta (
°
C)
0.5
0.4
0.3
0.2
0.1
V
IN
=30~38V
V
IN
=8~20V
100
120
0.6
Fig.13 Derating curve
OUTPUT CURRENT : Io (A)
E
η
100
80
60
40
20
0
0.1
0.2
0.3
0.4
0.5
V
IN
=8V
V
IN
=23V
V
IN
=38V
Fig.14 Efficiency
5
3
2
1
0.5
0.3
0.2
0.11
2
3
5
10
20 30
50
O
VOLTAGE BETWEEN PIN2 AND PIN9 (V)
Tc=25
°
C
SINGLE PULSE
Pw=1ms
Pw=10ms
Fig.15 Safety operation range
6/8
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| BP5225 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Step-down DC/DC Conv 5V; .15A RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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