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參數(shù)資料
| 型號(hào)： | NIS3001 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Integrated Driver and MOSFET Power Chip for Synchronous Buck Controllers |
| 中文描述： | 集成驅(qū)動(dòng)器和MOSFET功率芯片的同步降壓控制器 |
| 文件頁(yè)數(shù)： | 5/18頁(yè) |
| 文件大小： | 208K |
| 代理商： | NIS3001 |
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NIS3001
http://onsemi.com
5
Figure 3. Test Circuit
Driver
5 V
+
12 V
+
DRN
PGND
GND
BG
CO
EN
VS
BST
TG
VIN
Averaging
Circuit
Average
VS Voltage
Average
VS
Current
V
A
V
Average
Output
Voltage
A
Average
Output
Current
Average
Input Voltage
V
P
IN
= (V
VS
* I
VS
) + (V
IN
* I
IN
)
P
OUT
= (V
OUT
* I
OUT
)
Efficiency = P
OUT
/P
IN
P
LOSS
= P
IN
P
OUT
A
Load
Average
Input Current
This Test Circuit was used to characterize the NIS3001 during operation.
PWM
Signal
I
OUT
, OUTPUT CURRENT (A)
Figure 4. Power Loss versus Output Current
P
L
,
0
1
2
3
4
5
6
9
0
5
10
15
20
25
I
OUT
, OUTPUT CURRENT (A)
Figure 5. Efficiency versus Output Current
,
80
82
84
86
88
90
92
96
0
5
10
15
20
25
V
VS
, DRIVER VOLTAGE (V)
I
V
,
Figure 6. Driver Current versus Driver Voltage
15
17
19
21
23
25
4.5
5
5.5
6
F
SW
, SWITCHING FREQUENCY (kHz)
Figure 7. Driver Current versus Switching Frequency
I
V
,
0
5
10
15
20
30
35
40
100 200
400
500
900 1000
7
8
T
A
= 25
°
C
V
IN
= 12 V
V
VS
= 5.0 V
V
OUT
= 1.5 V
Airflow = 200 lfm
F
SW
= 1000 kHz
500 kHz
750 kHz
350 kHz
V
IN
= 12 V
V
EN
= 3.5 V
F
SW
= 500 kHz
V
OUT
= 1.5 V
I
OUT
= 15 A
T
A
= 25
°
C
94
F
SW
= 1000 kHz
500 kHz
750 kHz
350 kHz
25
300
700
800
600
V
IN
= 12 V
V
VS
= 5.0 V
V
EN
= 3.5 V
V
OUT
= 1.5 V
I
OUT
= 15 A
T
A
= 25
°
C
T
A
= 25
°
C
V
IN
= 12 V
V
VS
= 5.0 V
V
OUT
= 1.5 V
Airflow = 200 lfm
TYPICAL PERFORMANCE CURVES
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