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參數資料
| 型號： | TPS2838PWPR |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | MOSFETs |
| 英文描述： | 30V N-Channel PowerTrench MOSFET |
| 中文描述： | 30V的N溝道的PowerTrench MOSFET的 |
| 文件頁數： | 1/20頁 |
| 文件大小： | 283K |
| 代理商： | TPS2838PWPR |
SLVS367A – MARCH 2001 – REVISED JUNE 2001
1
www.ti.com
FEATURES
Integrated Drive Regulator (4 V to 14 V)
Adjustable/Adaptive Dead-Time Control
4-A Peak current at VDRV of 14 V
10-V to 15-V Supply Voltage Range
TTL-Compatible Inputs
Internal Schottky Diode Reduces Part Count
Synchronous or Nonsynchronous Operation
Inverting and Noninverting Options
TSSOP PowerPad
Package for Excellent
Thermal Performance
APPLICATIONS
Single or Multiphase Synchronous-Buck
Power Supplies
High-Current DC/DC Power Modules
DESCRIPTION
The TPS2838/39/48/49 devices are MOSFET
drivers
designed
for
synchronous power supplies. The drivers can
source and sink up to 4-A peak current at a 14-V
drive voltage. These are ideal devices to use with
power supply controllers that do not have on-chip
drivers. The low-side driver is capable of driving
loads of 3.3 nF in 10-ns rise/fall times and has
40-ns propagation delays at room temperature.
high-performance
The MOSFET drivers have an integrated 150-mA
regulator, so the gate drive voltage can be
optimized for specific MOSFETs. The TPS2848
and TPS2849 have a fixed 8-V drive regulator,
while the TPS2838/39 allow the drive regulator to
be adjusted from 4 V to 14 V by selection of two
external resistors.
The devices feature VDRV to PGND shoot-
through protection with adaptive/adjustable
deadtime control. The deadtime, for turning on the
high-side FET from LOWDR transitioning low, is
adjustable with an external capacitor on the
DELAY pin. This allows compensation for the
effect the gate resistor has on the synchronous
FET turn off. The adaptive deadtime prevents the
turning on of the low-side FET until the voltage on
the BOOTLO pin falls below a threshold after the
high-side FET stops conducting. The high-side
drive can be configured as a ground referenced
driver or a floating bootstrap driver. The internal
Schottky diode minimizes the size and number of
external components needed for the bootstrap
driver circuit. Only one external ceramic capacitor
is required to configure the bootstrap driver.
1
2
3
4
5
6
7
14
13
12
11
10
9
8
ENABLE
IN
PWRRDY
DELAY
NC
DT
AGND
BOOT
HIGHDR
BOOTLO
V
CC
VDRV
LOWDR
PGND
Thermal
Pad
TPS2848, TPS2849
PWP PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
ENABLE
IN
PWRRDY
DELAY
SYNC
ADJ
DT
AGND
BOOT
HIGHDR
BOOTLO
V
CC
VDRV
LOWDR
NC
PGND
Thermal
Pad
TPS2838, TPS2839
PWP PACKAGE
(TOP VIEW)
ACTUAL SIZE
(5,1 mm x 6,6 mm)
ACTUAL SIZE
(5,1 mm x 6,6 mm)
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Copyright
2001, Texas Instruments Incorporated
PowerPAD is a trademark of Texas Instruments.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS2838PWPRG4 | 功能描述:功率驅動器IC Non-Inv Fast Sync Buck MOSFET Driver RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPS2839PWP | 功能描述:功率驅動器IC Inv Fast Sync Buck MOSFET Driver RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPS2839PWPG4 | 功能描述:功率驅動器IC Inv Fast Sync Buck MOSFET Driver RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPS2839PWPR | 功能描述:功率驅動器IC Inv Fast Sync Buck MOSFET Driver RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPS2839PWPRG4 | 功能描述:功率驅動器IC Inv Fast Sync Buck MOSFET Driver RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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