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參數(shù)資料
| 型號： | KA3027D2TF |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 光電元器件 |
| 英文描述： | Tantalum Molded High Reliability Capacitor; Capacitance: 3.3uF; Voltage: 35V; Case Size: 5.8x3.1 mm; Packaging: Tape & Reel |
| 中文描述： | CD MOTOR DRIVER, PDSO28 |
| 封裝： | 0.300 INCH, HEAT SINK, SSOP-28 |
| 文件頁數(shù)： | 8/14頁 |
| 文件大?。?/td> | 282K |
| 代理商： | KA3027D2TF |
KA3027D2
8
Application Information
1. REFERENCE INPUT
Pin 26 (REF) is a reference Input pin.
1) Reference Input
The applied voltage at the reference input pin must be between 1.5 (V) and 3.5 (V), when Vcc = 5V.
2. SEPARATED CHANNEL MUTE FUNCTION
These pins are used for individual channel mute operation.
1) When the mute pins (pin27, 28 and 8) are Low level, the mute circuits are enabled and the output circuits are muted.
2) When the voltages of the mute pins (pin27, 28 and 8) are High level, the mute circuits are disabled and the output circuits
operate normally.
3) If the chip temperature rises above 175
°
C, then the thermal shutdown (TSD) circuit is activated and the output circuits are
muted.
Mute1, 2 (pin 27)-CH1, 2 mute control input pin.
Mute3 (pin 28)-CH3 mute control input pin. Mute4(pin8) - CH4 mute control input pin.
3. PROTECTION FUNCTION
Thermal Shutdown (TSD)
1) If the chip temperature rises above 175
°
C the thermal shutdown (TSD) circuit is activated and the output circuit is in the
Mute state, that is Off state.
The TSD circuit has a temperature hysteresis of 25
°
C.
4. FOCUS, TRACKING ACTUATOR, SLED MOTOR DRIVE
CIRCUIT
1) The reference voltage REF is given externally through pin 26.
2) The error amp output signal is amplified by R2/R1 and then fed to the
level shift circuit.
3) The level shift circuit produces the differential output voltages and drives
the two output power amplifiers.
Since the differential gain of the output amplifiers is equal to 2
×
(1+ R4/
R3), the output signal of the error amp is amplified by (R2/R1)
×
2
×
(1+R4/R3).
4) If the total gain is insufficient, the input error amp can be used to increase
the gain.
5) The bias voltage (Vr) is about a half of the supply voltage(VM).
-
+
LEVEL
SNIFT
Vin
15 18
EA
+
-
+
-
R1
R2
AP1
+
-
Vref
Error Amp
+
+
-
-
AP2
AP3
R3
R3
Vr
R4
R4
Power Amp
M
26
21
16 19
17 20
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| KA3030 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:6-Channel Motor Drive IC |
| KA3030D | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Motor Driver 4Ch BTL+2Ch DC RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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| KA3031 | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Motor Driver 4Ch BTL+2Ch DC RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| KA3032 | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Motor Driver 4Ch BTL+1Ch DC RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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