參數(shù)資料
型號(hào)： L6230PDTR
廠商： STMICROELECTRONICS
元件分類： 運(yùn)動(dòng)控制電子
英文描述： BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDSO36
封裝： ROHS COMPLIANT, SOP-36
文件頁(yè)數(shù)： 3/24頁(yè)
文件大?。?/td> 577K
代理商： L6230PDTR
L6230
Circuit description
Doc ID 18094 Rev 2
11/24
5
Circuit description
5.1
Power stages and charge pump
The L6230 integrates a three-phase bridge, which consists of 6 power MOSFETs connected
as shown on the block diagram (see Figure 1), each power MOS has an
RDS(ON) = 0.73 Ω (typical value @ 25 °C) with intrinsic fast freewheeling diode. Cross
conduction protection is implemented by using a dead time (tDT = 1 s typical value) set by
internal timing circuit between the turn off and turn on of two power MOSFETs in one leg of
a bridge.
Pins VSA and VSB must be connected together to the supply voltage (VS).
Using N-channel power MOS for the upper transistors in the bridge requires a gate drive
voltage above the power supply voltage. The bootstrapped supply (VBOOT) is obtained
through an internal oscillator and few external components to realize a charge pump circuit
as shown in Figure 6. The oscillator output (pin VCP) is a square wave at 600 kHz (typically)
with 10 V amplitude. Recommended values/part numbers for the charge pump circuit are
shown in Table 7.
Figure 6.
Charge pump circuit
Table 7.
Charge pump external component values
Component
Value
CBOOT
220 nF
CP
10 nF
D1
1N4148
D2
1N4148
D2
CBOOT
D1
CP
VS
VSA
VCP
VBOOT
VSB
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6230Q 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 DMOS 3-Ph Motor 8 to 52V 2.8A Driver 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
L6230QTR 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 DMOS 3-Ph Motor 8 to 52V 2.8A Driver 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
L6231H 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Industrial Control IC
L6232A 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SPINDLE DRIVER
L6232B 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SPINDLE DRIVER
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