參數(shù)資料
型號: TPS2421-1DDAR
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝: PLATSIC, SOP-8
文件頁數(shù): 19/24頁
文件大?。?/td> 1297K
代理商: TPS2421-1DDAR
SLUS907D – JANUARY 2009 – REVISED AUGUST 2010
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
Unless otherwise noted: 3 V
≤ VIN ≤ 18 V, EN = 0 V, PG = FLT = open, ROUT = open, CLOAD = 0, RSET = 49.9 k, –40°C ≤ TJ
125°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
EN
V EN falling
0.8
1.0
1.5
V
Threshold voltage
Hysteresis
20
150
250
mV
VEN = 2.4 V
–2.0
0
0.5
Input bias current
mA
VEN = 0.2 V
–3.0
1
0.5
Turn on propagation
VIN = 3.3 V, ILOAD = 1 A, V EN : 2.4 V → 0.2 V,
350
500
delay
VOUT: rising 90% × VIN
ms
Turn off propagation
VIN = 3.3 V, ILOAD = 1 A, V EN : 0.2 V → 2.4 V,
30
50
delay
VOUT: ↓ 10% × VIN
FLT
Low level output
VOL
VCT = 1.8 V, I FLT = 1 mA
0.2
0.4
V
voltage
Leakage current
V FLT = 18 V
1
mA
PG
V(VIN-VOUT) falling
0.4
0.5
0.75
PG threshold
Hysteresis
0.1
0.25
0.4
V
Low level output
VOL
I PG = 1 mA
0.2
0.4
voltage
Leakage current
V PG = 18 V
1
mA
Thermal Shutdown
Thermal shutdown
Junction temperature rising
160
°C
Hysteresis
10
4
Copyright 2009–2010, Texas Instruments Incorporated
Product Folder Link(s): TPS2421-1 TPS2421-2
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