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參數(shù)資料
| 型號： | IP4001 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 5-CH MOTOR DRIVE IC |
| 中文描述： | 5通道馬達(dá)驅(qū)動電路 |
| 文件頁數(shù)： | 6/23頁 |
| 文件大小： | 705K |
| 代理商： | IP4001 |
- 6 -
August. 2002
(Rev.7)
WWW.INTERPIONSEMI.COM
IP4001
5-CH MOTOR DRIVE IC
APPLICATION SUMMARY (Continued)
-
Thermal shutdown
The IP4001 has a thermal protection against the abnormal operation, and the detailed operation
of the TSD circuit is as follows
Temperature
mute
Above 175
O
C
on
Falls below 150
O
C
off
-
BTL drive part (Focus, Tracking, Spindle, Sled drive part)
BTL drive part is composed of V-I converter, level shifter and output power amp.
All Output
Driver Bias
VCC2
Q4
I
TSD
Hysteresis
I
HYS
10.6k
Pref
10k
Level
Shift
23
10
3
19
25
24
4
2
11
18
26
1
12
17
27
10.6k
Ra
As shown in figure 3,
TSD circuit controls the base of the TR Q4.
If the junction temperature rises above 175
O
C,
TR Q4 will be turned on, and the bias current
of the output drive circuit will be shut down
(because of the negative temperature characteristic
of the NPN transistor).
And then temperature falls below 150
O
C, TR Q4 will
be turned off.
(hysteresis temperature is about to 25
O
C)
Fig3. Thermal shut down
Hysteresis
25
O
C
Fig4. BTL drive part
- V-I converter converts voltage of the input pin into current,
* Vin = input voltage of the input pin (pin3, 10, 19, 25) *Vref = reference voltage (pin23)
10k
Vref
-
Vin
=
Iconv
Iconv
+
Iconv
Va
-
Iconv
Ra
Pamp1
Pamp2
-Va
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IP4001S | 制造商:INTERPION 制造商全稱:INTERPION 功能描述:5-CH MOTOR DRIVEIC |
| IP4001SL | 制造商:INTERPION 制造商全稱:INTERPION 功能描述:5-CH MOTOR DRIVEIC |
| IP4001SL-TF | 制造商:INTERPION 制造商全稱:INTERPION 功能描述:5-CH MOTOR DRIVEIC |
| IP4001S-TF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5-CH MOTOR DRIVEIC |
| IP4001TF | 制造商:INTERPION 制造商全稱:INTERPION 功能描述:5-CH MOTOR DRIVE IC |
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