- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄166429 > BD6718FV-E2 BRUSHLESS DC MOTOR CONTROLLER, 0.02 A, PDSO20 PDF資料下載
參數(shù)資料
| 型號： | BD6718FV-E2 |
| 元件分類： | 運動控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 0.02 A, PDSO20 |
| 封裝： | ROHS COMPLIANT, SSOP-20 |
| 文件頁數(shù)： | 17/34頁 |
| 文件大?。?/td> | 1916K |
| 代理商： | BD6718FV-E2 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁當(dāng)前第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁
24/40
R2
R1
R2
+
2) Current limit (current limiting circuit)
The current limit circuit turns off the output, when the current that flows to the motor coil is detected exceeding a set
value.
The current value that current limit operates is determined by
a) Voltage of CL terminal and voltage of RNF terminal (BD6709FS, BD6718FV)
b) Internal setting voltage and voltage of RNF terminal (BD6721FS, BD6722FS)
a) Setting according to voltage of CL terminal and RNF terminal.
For example about BD6718FV, in Fig.82
When R1=40kΩ、R2=10kΩ、R4=0.5Ω, the amperage I that current limit operates is
V1 =
×
VREF =
×
2.5 = 0.5V
I =
=
= 1A
Current limit circuit operates at 1A.
Short CL terminal to VREF, short CS and RNF terminal to GND when the current limit function is not used.
b) Setting according to internal voltage and RNF terminal.
For example about BD6722FS, in Fig.83
When R4=0.33Ω, the current limit setting voltage is 350mV(typ.)
I =
=1.06A
Current limit circuit operates at 1.06A.
Short CS and RNF terminal to GND when the current limit function is not used.
Both of a) and b)
R3 and C1 are low-pass filters for RNF smooth voltage. Adjust for a current limit not to malfunction in proportion to the
PWM frequency.
Connect the capacitor with the COSC terminal to do the resume operation after a current limit operates at the PWM
operation by the pulse input.
+
-
CL
CS
VREF
R1
R2
C1
R4
R3
RNF
V1
Fig.82 External setting of current limit voltage
+
-
CS
Reference voltage
C1
R4
R3
RNF
Fig.83 Internal setting of current limit voltage
10k
40k
10k
+
R4
V1
0.5
0.33Ω
350mV
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| BD9007HFP | 2 A SWITCHING REGULATOR, 505 kHz SWITCHING FREQ-MAX, PSSO7 |
| BD9831AMWV | SWITCHING REGULATOR, 2000 kHz SWITCHING FREQ-MAX, PQCC56 |
| BD9870FPS | 1.5 A SWITCHING REGULATOR, 990 kHz SWITCHING FREQ-MAX, PSSO4 |
| BDC-062BNX-014 | 62.5/125 um, MULTI MODE, DUPLEX FIBER OPTIC CONNECTOR, PLUG |
| BDC-062BNXS-014 | 9/125 um, SINGLE MODE, DUPLEX FIBER OPTIC CONNECTOR, PLUG |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BD6721FS | 制造商:ROHM 制造商全稱:Rohm 功能描述:Single-Phase Full-Wave Motor Driver for Fan Motor |
| BD6721FS_1 | 制造商:ROHM 制造商全稱:Rohm 功能描述:Single-Phase Full-Wave Motor Driver for Fan Motor |
| BD6721FS-E2 | 功能描述:IC MOTOR DRIVER SGL PHASE SSOP16 RoHS:是 類別:集成電路 (IC) >> PMIC - 電機和風(fēng)扇控制器，驅(qū)動器 系列:- 產(chǎn)品變化通告:ATA683(3,4)PLQW Obsolescence 09/Aug/2012 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:DC 電機控制器，無刷（BLDC），3 相 評估套件:可供 輸出數(shù):1 電流 - 輸出:100mA 電壓 - 負載:5.25 V ~ 20 V 電源電壓:5.25 V ~ 20 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-VQFN（7x7） 包裝:剪切帶 (CT) 其它名稱:ATA6833-PLQWCT |
| BD6722FS | 制造商:ROHM 制造商全稱:Rohm 功能描述:Single-Phase Full-Wave Motor Driver for Fan Motor |
| BD6722FS_1 | 制造商:ROHM 制造商全稱:Rohm 功能描述:Single-Phase Full-Wave Motor Driver for Fan Motor |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。