參數(shù)資料
型號(hào): TPS3801E18DCKR
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封裝: GREEN, PLASTIC, SOT-323, SC-70, 5 PIN
文件頁數(shù): 10/15頁
文件大小: 0K
代理商: TPS3801E18DCKR
td
t
VDD
V(NOM)
VIT
1.1 V
MR
1
0
1
0
t
Undefined Behavior of
RESET Output For VDD < 1.1 V
RESET
td
SLVS219E – AUGUST 1999 – REVISED OCTOBER 2010
www.ti.com
TIMING REQUIREMENTS
at RL = 1 M, CL = 50 pF, TA = +25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
at SENSE
VDD = 1.6 V, VIH = 1.1 × VIT–, VIL = 0.9 × VIT–
1
ms
tw
Pulse width
at VDD
VDD = VIT– + 0.2 V, VDD = VIT– –0.2 V
3
at MR
VDD ≥ VIT– + 0.2 V, VIL = 0.3 × VDD, VIH = 0.7 × VDD
100
ns
SWITCHING CHARACTERISTICS
at RL = 1 M, CL = 50 pF, TA = +25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
TPS3801T50
15
25
35
VDD ≥ VIT– + 0.2 V,
TPS3800
60
95
140
td
RESET recovery delay time
MR
≥ 0.7 × VDD
ms
TPS3801
120
200
280
TPS3802
240
380
560
VDD ≥ VIT– + 0.2 V,
MR to RESET delay
VIL = 0.3 × VDD,
15
ns
Propagation (delay) time, high-to-low-level
VIH = 0.7 × VDD
tPHL
output
VDD to RESET delay
VIL = VIT– – 0.2 V,
1
ms
VIH = VIT– + 0.2 V
SENSE to RESET
TIMING DIAGRAM
NOTE: RESET should not be forced high during the power-up sequence (until VDD > 1.1 V).
4
Copyright 1999–2010, Texas Instruments Incorporated
Product Folder Link(s): TPS3800-xx TPS3801-xx TPS3802-xx
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