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參數資料
| 型號： | MC33167TH |
| 廠商： | MOTOROLA INC |
| 元件分類： | 穩壓器 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 8 A SWITCHING REGULATOR, 81 kHz SWITCHING FREQ-MAX, PSFM5 |
| 封裝： | HORIZONTAL MOUNT, PLASTIC, TO-220, 5 PIN |
| 文件頁數： | 12/16頁 |
| 文件大小： | 408K |
| 代理商： | MC33167TH |
MC34167 MC33167
12
MOTOROLA ANALOG IC DEVICE DATA
VO
+ 36 V/0.3 A
D1
L
R1
MUR415
Z1
22
0.01
1N5825
MTP
3055E
2N3906
R1
36 k
R2
5.1 k
+
1000
VO
R1
R2
Figure 25. Negative Input/Positive Output Regulator
4
2
1
5
3
+
0.22
470 k
EA
Reference
Thermal
Oscillator
S
R
Q
PWM
UVLO
ILIMIT
6.8 k
Q1
*Gate resistor RG, zener diode D3, and diode D4 are required only when Vin is greater than 20 V.
Vin
–12 V
1000
+
0.002
5.05
0.7
+
+
Test
Conditions
Results
Line Regulation
Vin = –10 V to – 20 V, IO = 0.3 A
Vin = –12 V, IO = 0.03 A to 0.3 A
Vin = –12 V, IO = 0.3 A
Vin = –12 V, IO = 0.3 A
266 mV =
±
0.38%
Load Regulation
7.90 mV =
±
1.1%
Output Ripple
100 mVpp
78.4%
Efficiency
L = General Magnetics Technology GMT–0223, 42 turns of #16 AWG on Magnetics Inc. 58350–A2
core. Heatsink = AAVID Engineering Inc. 5903B or 5930B
47
+
50 k
Faster
Brush
Motor
Figure 26. Variable Motor Speed Control with EMF Feedback Sensing
4
2
1
5
3
+
EA
Reference
Thermal
Oscillator
S
R
Q
PWM
UVLO
ILIMIT
Vin
18 V
1000
5.6 k
56 k
0.1
1N5825
+
1.0 k
+
+
Test
Conditions
Results
Low Speed Line Regulation
Vin = 12 V to 24 V
Vin = 12 V to 24 V
1760 RPM
±
1%
High Speed Line Regulation
3260 RPM
±
6%
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