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參數(shù)資料
| 型號： | FAN8037 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 光電元器件 |
| 英文描述： | 7-CH Motor Driver |
| 中文描述： | CD MOTOR DRIVER, PQFP48 |
| 封裝： | 14 X 14 MM, HEAT SINK, QFP-48 |
| 文件頁數(shù)： | 13/23頁 |
| 文件大?。?/td> | 385K |
| 代理商： | FAN8037 |
FAN8037 (KA3037)
13
4. STANDBY FUNCTION
When the pin20 is high, the TR Q5 is turned on and Q6 is off, and the
bias circuit is enabled. On the other hand, when the pin20 is Low
(GND) , the TR Q5 is turned off and Q6 is on, and the bias circuit is
disabled.
This function will cause the output drivers of the 4-CH BTL circuit
(Focus, Tracking, Spindle, Sled) to be in off state.
Truth table is as follows
Pin20
KA3037
HIGH
STANDBY OFF
LOW
STANDBY ON
5. REGULATOR & RESET FUNCTION
The regulator and reset circuits are illustrated in the figure 1.
The external circuit is composed of the PNP transistor(KSB772), capacitor(about 33
μ
F) and 2 feedback resistors.
The capacitor is used as a ripple filter and should have good temperature characteristics.
The regulator output voltage is determined as follows.
V
REG
= (1+R1/R2)
×
2.5
When the voltage of the pin 43 (Vreset) is high, the regulator circuit operates normally. If the voltage of pin 43 is low, the
regulator circuit is disabled .
Figure 1. Regulator circuit
20
Q5
Bias block
(4-CH BTL
output driver)
Q6
SVCC
+
40
43
41
42
KSB772
V
REG
SVCC
33
μ
F
2.5V
R1
R2
Vreset
FAN8037
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| FAN8038 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:4-Channel Motor Drive IC |
| FAN8038B | 功能描述:馬達/運動/點火控制器和驅動器 Motor Driver 5Ch BTL+3Ch DC RoHS:否 制造商:STMicroelectronics 產品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| FAN8038C | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:4-Channel Motor Drive IC |
| FAN8039BD3 | 功能描述:馬達/運動/點火控制器和驅動器 4Ch BTL Driver 1Ch DC Motor Driver RoHS:否 制造商:STMicroelectronics 產品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| FAN8039BD3TF | 功能描述:馬達/運動/點火控制器和驅動器 4Ch BTL Driver 1Ch DC Motor Driver RoHS:否 制造商:STMicroelectronics 產品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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