參數(shù)資料
型號: TPS40055MPWPREPG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封裝: PLASTIC, HTSSOP-16
文件頁數(shù): 31/35頁
文件大?。?/td> 2348K
代理商: TPS40055MPWPREPG4
www.ti.com
SGLS310B – JULY 2005 – REVISED OCTOBER 2010
ELECTRICAL CHARACTERISTICS (continued)
TA = –55°C to 125°C, VIN = 24 Vdc, RT = 90.9 k, IKFF = 150 A, fSW = 500 kHz, all parameters at zero power dissipation
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
VOH
High-level output voltage, LDRV
ILDRV = –0.1 A
BP10
V
–1.8
–1
VOL
Low-level output voltage, LDRV
ILDRV = 0.1 A
0.6
V
Minimum controllable pulse width
100
160
ns
SS/SD SHUTDOWN
VSD
Shutdown threshold voltage
Outputs off
85
125
170
mV
VEN
Device active threshold voltage
180
210
260
mV
BOOST REGULATOR
VBOOST
Output voltage
VIN = 24 V
30.8
32.2
33.9
V
SW NODE
ILEAK
Leakage current(4)
35
A
THERMAL SHUTDOWN
Shutdown temperature(4)
165
TSD
°C
Hysteresis(4)
20
UVLO
VUVLO
KFF programmable threshold voltage
RKFF = 28.7 k
6.85
7.5
7.95
UVLO, fixed
7.05
7.5
7.9
V
VDD
UVLO, hysteresis
0.46
(4)
Ensured by design. Not production tested.
TYPICAL CHARACTERISTICS
OFFSET VOLTAGE (VLim vs SW)
TEMPERATURE
Figure 1.
Copyright 2005–2010, Texas Instruments Incorporated
5
Product Folder Link(s): TPS40055-EP
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