參數(shù)資料
型號: TPS2831PWP
廠商: Texas Instruments, Inc.
英文描述: FAST SYNCHRONOUS-BUCK MOSFET DRIVERS WITH DEADTIME CONTROL
中文描述: 快速同步賽珍珠MOSFET驅(qū)動器與死區(qū)控制
文件頁數(shù): 11/15頁
文件大小: 198K
代理商: TPS2831PWP
TPS2830, TPS2831
FAST SYNCHRONOUS-BUCK MOSFET DRIVERS
WITH DEADTIME CONTROL
SLVS196B – JANUARY1999 – REVISED SEPTEMBER 1999
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
Figure 15 shows the circuit schematic of a 100-kHz synchronous-buck converter implemented with a TL5001A
pulse-width-modulation (PWM) controller and a TPS2831 driver. The converter operates over an input range from
4.5 V to 12 V and has a 3.3-V output. The circuit can supply 3 A continuous load. The converter achieves an efficiency
of 94% for V
IN
= 5 V, I
load
=1 A, and 93% for V
in
= 5 V, I
load
= 3 A.
C14
1
μ
F
R9
90.9 k
R8
121 k
C9
0.22
μ
F
VCC
RT
FB
COMP
GND
OUT
DTC
SCP
U2
TL5001A
1
2
6
5
8
3
4
7
C1
1
μ
F
R10
1.0 k
R2
1.6 k
C2
0.033
μ
F
C3
0.0022
μ
F
C8
0.1
μ
F
C4
0.022
μ
F
R3
180
R4
2.32 k
GND
Q2
Si4410
R7
3.3
C6
1000 pF
VIN
C5
100
μ
F
C10
100
μ
F
C11
0.47
μ
F
3.3 V
C13
10
μ
F
C7
100
μ
F
+
C12
100
μ
F
Q1
Si4410
L1
27
μ
H
IN
CROWBAR
NC
BOOTLO
HIGHDR
NC
BOOT
ENABLE
U1
TPS2831
1
2
3
4
5
6
7
14
13
12
11
10
9
8
SYNC
DT
PGND
VCC
NC
LOWDR
R1
1 k
C15
1.0
μ
F
R6
1 M
R5
0
R11
4.7
RTN
+
+
+
Figure 16. 3.3-V 3-A Synchronous-Buck Converter Circuit
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TPS2831PWPR 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
TPS2831PWPRG4 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
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