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参数资料
| 型号： | TPS2816MDBVREP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | MOSFETs |
| 英文描述： | 2 A BUF OR INV BASED MOSFET DRIVER, PDSO5 |
| 封装： | PLASTIC, SOT-23, 5 PIN |
| 文件页数： | 8/25页 |
| 文件大小： | 674K |
| 代理商： | TPS2816MDBVREP |
www.ti.com
Regulator
1
2
3
5
4
34 VDC
TPS2816
0.1
F
PWM
Controller
0.1
F
4.7
F
VCC
Out
GND
0.1
F
10
F
VO
+
2.5-V/3.3-V, 3-A Application
SGDS039 – FEBRUARY 2008
external circuitry, providing the power dissipation rating for the driver is not exceeded. When using the on-board
series regulator, an electrolytic output capacitor of 4.7
F or larger is recommended. Although not required, a
0.1
F ceramic capacitor on the input of the regulator can help suppress transient currents (see Figure 22).
When not used, the regulator should be connected to VCC. Grounding VDD will result in destruction of the
regulator.
Figure 22. Boost Application
The TPS2816 and TPS2818 drivers include active pullup circuits on the inputs to eliminate the need for external
pullup resistors when using controllers with open-collector outputs (such as the TL5001). The TPS2817 and
TPS2819 drivers have standard CMOS inputs providing a total device operating current of less than 50
A. All
devices switch at standard CMOS logic levels of approximately 2/3 VCC with positive-going input levels, and
approximately 1/3 VCC with negative-going input levels. Being CMOS drivers, these devices will draw relatively
large amounts of current (Approximately 5 mA) when the inputs are in the range of one-half of the supply
voltage. In normal operation, the driver input is in this range for a very short time. Care should be taken to avoid
use of very low slew-rate inputs, used under normal operating conditions. Although not destructive to the device,
slew rates slower than 0.1 V/
s are not recommended.
The BiCMOS output stage provides high instantaneous drive current to rapidly toggle the power switch, and very
low drop to each rail to ensure proper operation at voltage extremes.
Low-voltage circuits (less than 14 V) that require very low quiescent currents can use the TPS2828 and
TPS2829 drivers. These drivers use typically 0.2
A of quiescent current (with inputs high or low). They do not
have the internal regulator or the active pullup circuit, but all other specifications are the same as for the rest of
the family.
Figure 23 illustrates the use of the TPS2817 with a TL5001 PWM controller and a TPS1110 in a simple
step-down converter application. The converter operates at 275 kHz and delivers either 2.5 V or 3.3 V
(determined by the value of R6) at 3 A (5 A peak) from a 5-V supply. The bill of materials is provided in Table 1.
16
Copyright 2008, Texas Instruments Incorporated
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| TPS2817DBVR | 功能描述:功率驱动器IC 2A HS Non-Invert RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| TPS2817DBVRG4 | 功能描述:功率驱动器IC Non-inv H-S MOSFET Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| TPS2817DBVT | 功能描述:功率驱动器IC Non-inv H-S MOSFET Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| TPS2817DBVTG4 | 功能描述:功率驱动器IC Non-inv H-S MOSFET Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| TPS2818DBVR | 功能描述:功率驱动器IC 2A HS Inverting RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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