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参数资料
| 型号： | L6208D |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 运动控制电子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 5.6 A, PDSO24 |
| 封装： | SO-24 |
| 文件页数： | 27/27页 |
| 文件大小： | 462K |
| 代理商： | L6208D |
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L6208
Figure 5. Overcurrent Detection Timing Definition
CIRCUIT DESCRIPTION
POWER STAGES and CHARGE PUMP
The L6208 integrates two independent Power MOS Full Bridges. Each Power MOS has an RDS(ON) = 0.3
(typ-
ical value @ 25°C), with intrinsic fast freewheeling diode. Switching patterns are generated by the PWM Current
Controller and the Phase Sequence Generator (see below). Cross conduction protection is achieved using a
dead time (tDT = 1
s typical value) between the switch off and switch on of two Power MOSFETSs in one leg of
a bridge.
Pins VSA and VSB MUST be connected together to the supply voltage VS. The device operates with a supply
voltage in the range from 8V to 52V. It has to be noticed that the RDS(ON) increases of some percents when the
supply voltage is in the range from 8V to 12V (see Fig. 34 and 35).
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 voltage 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 (VCP) is a
square wave at 600KHz (typical) with 10V amplitude. Recommended values/part numbers for the charge pump
circuit are shown in Table 1.
Table 1. Charge Pump External Components Values
CBOOT
220nF
CP
10nF
RP
100
D1
1N4148
D2
1N4148
ISOVER
90%
10%
IOUT
VEN
tOCD(OFF)
tOCD(ON)
D02IN1399
ON
OFF
BRIDGE
相关PDF资料 |
PDF描述 |
|---|---|
| L6208PD | STEPPER MOTOR CONTROLLER, 5.6 A, PDSO36 |
| L6219DS | STEPPER MOTOR CONTROLLER, 1 A, PDSO24 |
| L6219DS013TR | STEPPER MOTOR CONTROLLER, 1 A, PDSO24 |
| L6227Q | BRUSH DC MOTOR CONTROLLER, 2.8 A, QCC32 |
| L6228D | STEPPER MOTOR CONTROLLER, 2.8 A, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| L6208D | 制造商:STMicroelectronics 功能描述:Supply Voltage Max.:52V |
| L6208D013TR | 功能描述:马达/运动/点火控制器和驱动器 DMOS Stepper Motor RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| L6208D013TR-CUT TAPE | 制造商:ST 功能描述:L6208 Series Dual 52 V 5.6 A DMOS Driver for Bipolar Stepper Motor - SOIC-24 |
| L6208N | 功能描述:马达/运动/点火控制器和驱动器 DMOS Stepper Motor RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| L6208PD | 功能描述:马达/运动/点火控制器和驱动器 DMOS Stepper Motor RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
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