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參數(shù)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(shù)： | 4/20頁 |
| 文件大?。?/td> | 283K |
| 代理商： | TPS2838PWPR |
SLVS367A
–
MARCH 2001
–
REVISED JUNE 2001
4
www.ti.com
Terminal Functions
TERMINAL
NAME
NO.
DESCRIPTION
TPS283x
TPS284x
ADJ
6
—
Adjust. The adjust pin is the feedback pin for the drive regulator (TPS283X only)
AGND
8
7
Analog ground
BOOT
16
14
Bootstrap. A capacitor is connected between the BOOT and BOOTLO pins to develop the floating
bootstrap voltage for the high-side MOSFET. The capacitor value is typically between 0.1
μ
F and 1
μ
F.
BOOTLO
14
12
Boot low. This pin connects to the junction of the high-side and low-side MOSFETs.
DELAY
4
4
Delay. Connecting a capacitor between this pin and ground adjusts the deadtime for high-side driver
DT
7
6
Deadtime control. Connect DT to the junction of the high-side and low-side MOSFETs
ENABLE
1
1
Enable. If ENABLE is low, both drivers are off.
HIGHDR
15
13
High drive. This pin is the output drive for the high-side power MOSFET.
IN
2
2
Input. This pin is the input signal to the MOSFET drivers.
LOWDR
11
9
Low drive. This pin is the output drive for the low-side power MOSFET.
NC
10
5
No internal connection
PGND
9
8
Power ground. This pin is connected to the FET power ground.
PWRRDY
3
3
Power ready. This open-drain pin indicates a power good for VDRV and VCC.
Synchronous rectifier enable. If SYNC is low, the low-side driver is always off; if SYNC is high, the
low-side driver provides gate drive to the low-side MOSFET.
SYNC
5
—
VCC
13
11
Input power supply. It is recommended that a capacitor (minimum 1
μ
F) be connected from VCC to
PGND. Note that VCC must be 2 V higher than VDRV.
Drive regulator output voltage. It is recommended that a capacitor (minimum 1
μ
F) be connected from
VDRV to PGND. Note that VCC must be 2 V higher than VDRV.
VDRV
12
10
detailed description
low-side driver
The low-side driver is designed to drive low r
DS(on)
N-channel MOSFETs. The current rating of the driver is 4 A,
source and sink.
high-side driver
The high-side driver is designed to drive low r
DS(on)
N-channel MOSFETs. The current rating of the driver is 4 A
minimum, source and sink. The high-side driver can be configured as a GND-reference driver or as a
floating-bootstrap driver. The internal bootstrap diode is a Schottky, for improved drive efficiency. The maximum
voltage that can be applied from BOOT to ground is 30 V.
dead-time (DT) control
Dead-time control prevents shoot-through current from flowing through the main power FETs during switching
transitions by controlling the turnon times of the MOSFET drivers. The high-side driver is not allowed to turn
on until the gate drive voltage to the low-side FET is low, and the low-side driver is not allowed to turn on until
the voltage at the junction of the power FETs (BOOTLO) is low. The TTL-compatible DT terminal connects to
the junction of the power FETs.
ENABLE
The ENABLE terminal enables the drivers. When enable is low, the output drivers are low. ENABLE is a
TTL-compatible digital terminal.
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參數(shù)描述 |
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| TPS2838PWPRG4 | 功能描述:功率驅(qū)動器IC Non-Inv Fast Sync Buck MOSFET Driver RoHS:否 制造商:Micrel 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPS2839PWP | 功能描述:功率驅(qū)動器IC Inv Fast Sync Buck MOSFET Driver RoHS:否 制造商:Micrel 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPS2839PWPG4 | 功能描述:功率驅(qū)動器IC Inv Fast Sync Buck MOSFET Driver RoHS:否 制造商:Micrel 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPS2839PWPR | 功能描述:功率驅(qū)動器IC Inv Fast Sync Buck MOSFET Driver RoHS:否 制造商:Micrel 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPS2839PWPRG4 | 功能描述:功率驅(qū)動器IC Inv Fast Sync Buck MOSFET Driver RoHS:否 制造商:Micrel 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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