參數(shù)資料
型號(hào)： TPS3803G15DCKRG4
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, SC-70, 5 PIN
文件頁數(shù)： 13/16頁
文件大小： 484K
代理商： TPS3803G15DCKRG4
TPS3803-01
TPS3803G15
TPS3805H33
SLVS392A JULY 2001 REVISED JUNE 2007
www.ti.com
6
ELECTRICAL CHARACTERISTICS
Over recommended operating free-air temperature range, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VDD = 1.5 V,
IOH = 0.5 mA
VOH
High-level output voltage (TPS3805 only)
VDD = 3.3 V,
IOH = 1.0 mA
0.8 x VDD
V
VOH
High-level output voltage (TPS3805 only)
VDD = 6 V,
IOH = 1.5 mA
0.8 x VDD
V
VDD = 1.5 V,
IOL = 1.0 mA
VOL
Low-level output voltage
VDD = 3.3 V,
IOL = 2 mA
0.3
V
VOL
Low-level output voltage
VDD = 6 V,
IOL = 3 mA
0.3
V
Power-up reset voltage(1)
VIT > 1.5 V, TA = 25
°C
0.8
V
Power-up reset voltage(1)
VIT
≤ 1.5 V, TA = 25°C
1.0
V
Negative-going input threshold
SENSE
1.208
1.226
1.244
VIT
Negative-going input threshold
voltage(2)
TPS3803G15
TA = 40°C to +85°C
1.379
1.4
1.421
V
VIT
voltage(2)
TPS3805H33
TA = 40 C to +85 C
3.004
3.05
3.096
V
Vhys
Hysteresis
1.2 V
< VIT < 2.5 V
15
mV
Vhys
Hysteresis
2.5 V
< VIT < 3.5 V
30
mV
II
Input current
SENSE
25
nA
IOH
High-level output current at RESET
Open drain only
VDD = VIT + 0.2V, VOH = VDD
300
nA
TPS380301
2
4
IDD
Supply current
TPS3805,
TPS3803G15
VDD = 3.3 V, output unconnected
3
5
A
IDD
Supply current
TPS380301
2
4
A
TPS3805,
TPS3803G15
VDD = 6 V, output unconnected
4
6
CI
Input capacitance
VI = 0 V to VDD
1
pF
(1) The lowest supply voltage at which RESET (VOL(max) = 0.2 V, IOL = 50 A) becomes active. tr(VDD) ≥ 15 s/V.
(2) To ensure the best stability of the threshold voltage, place a bypass capacitor (ceramic, 0.1 F) near the supply terminals.
TIMING REQUIREMENTS
AT RL = 1 M, CL = 50 PF, TA = 40°C TO +85°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tw
Pulse width
At VDD
VIH = 1.05 x VIT, VIL = 0.95 x VIT
5.5
s
tw
Pulse width
At SENSE
VIH = 1.05 x VIT, VIL = 0.95 x VIT
5.5
s
SWITCHING CHARACTERISTICS
AT RL = 1 M, CL = 50 PF, TA = 40°C TO +85°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tPHL
Propagation (delay) time,
VDD to RESET delay
V
= 1.05 x V ,
5
100
tPHL
Propagation (delay) time,
high-to-low-level output
SENSE to RESET delay
VIH = 1.05 x VIT,
VIL = 0.95 x VIT
5
100
s
tPLH
Propagation (delay) time,
VDD to RESET delay
IH
IT
VIL = 0.95 x VIT
5
100
s
tPLH
Propagation (delay) time,
low-to-high-level output
SENSE to RESET delay
5
100
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