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参数资料
| 型号： | PWR-82520-100 |
| 厂商： | DATA DEVICE CORP |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 15 A, DIP41 |
| 封装： | DIP-41 |
| 文件页数： | 12/12页 |
| 文件大小： | 174K |
| 代理商： | PWR-82520-100 |
9
PWR-82520 POWER DISSIPATION (SEE FIGURE 11)
There are two major contributors to power dissipation in the
motor driver: conduction losses and switching losses.
VBUS = +28 V (Bus Voltage)
IoA = 3 A, IOB = 7 A (see FIGURE 11)
ton = 36 s, T = 40 s (period) (see FIGURE 11)
Ron = 0.055
(on-resistance, see TABLE 2)
Rc = 0.133
(conductor resistance, see TABLE 2,)
ts1 = 125 ns, ts2 = 200 ns (see FIGURE 11)
fo = 50 kHz (switching frequency)
1. Transistor Conduction Losses (PC)
PT = (Imotor rms)2 x (Ron)
PT = (4.87)2 x (0.055)
PT = 1.30 Watts
C
ontinuous
Current
(Am
ps)
Case Temperature (
°C)
-60
-40
-20
0
20
40
60
80
100
120
140
28V,
Cont. Cur.
42V,
Cont. Cur.
70V,
Cont. Cur.
11
10
9
8
7
6
5
4
3
2
1
0
2. Switching Losses (Ps)
Ps = [ Vcc ( IOA (ts1) + IOB (ts2) ) fo] / 2
Ps = [ 28 V ( 3 A (125 ns) + 7 A (200 ns) ) 50 kHz] / 2
Ps = 1.24 Watts
TRANSISTOR POWER DISSIPATION ( PQ )
PQ = PT + Ps
PQ = 1.30 + 1.24 = 2.54 Watts
OUTPUT CONDUCTOR DISSIPATION
PC = (Imotor rms)2 x (Rc)
PC = (4.87)2 x (0.133)
PC = 3.15 Watts
TRANSISTOR POWER DISSIPATION FOR CONTINUOUS
COMMUTATION
PQC = PQ (0.33)
PQC = (2.54) X (0.33)
PQC = 0.84 Watts
TOTAL HYBRID POWER DISSIPATION
P
TOTAL = (PQ + PC) x 2
P
TOTAL = (2.54 +3.15) x 2
P
TOTAL = 11.38 Watts
IOB
ton
IOA
VBUS
IO
ts2
ts1
FIGURE 11. OUTPUT CHARACTERISTICS
FIGURE 10. MOTOR CURRENT DRIVE
(IOBIOA + (IOB - IOA)
2)( ton
T
)
3
Imotor rms =
(7 * 3 + (7 - 3)
2)( 36 )
3
Imotor rms =
40
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PWR-82520-100K | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Industrial Control IC |
| PWR-82520-100L | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Industrial Control IC |
| PWR-82520-100Q | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Industrial Control IC |
| PWR-82520-100S | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Industrial Control IC |
| PWR-82520-100W | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Industrial Control IC |
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