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| 型号： | TPS3305-18DGNRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封装： | GREEN, PLASTIC, MSOP-8 |
| 文件页数： | 11/17页 |
| 文件大小： | 650K |
| 代理商： | TPS3305-18DGNRG4 |
www.ti.com
ELECTRICAL CHARACTERISTICS
SLVS198C – DECEMBER 1998 – REVISED MARCH 2008
Over operating junction temperature range (unless otherwise noted).
TPS3305-xx
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VDD
Input supply range
2.7
6.0
V
TJ
Operating junction temperature range
–40
+85
°C
VDD = 2.7V to 6V,
VDD – 0.2V
V
IOH = –20A
VOH
High-level output voltage
VDD = 3.3V, IOH = –2mA
VDD – 0.4V
V
VDD = 6V, IOH = –3mA
VDD – 0.4V
V
VDD = 2.7V to 6V,
0.2
V
IOL = 20A
VOL
Low-level output voltage
VDD = 3.3V, IOL = 2mA
0.4
V
VDD = 6V, IOL = 3mA
0.4
V
Power-up reset voltage(1)
VDD ≥ 1.1V, IOL = 20A
0.4
V
1.64
1.68
1.72
V
2.20
2.25
2.30
V
VSENSE1,
VDD = 2.7V to 6V,
VSENSE2
TA = 0°C to +85°C
2.86
2.93
3.0
V
4.46
4.55
4.64
V
Negative-going input threshold
VIT–
voltage(2)
1.64
1.68
1.73
V
2.20
2.25
2.32
V
VSENSE1,
VDD = 2.7V to 6V,
VSENSE2
TA = –40°C to +85°C
2.86
2.93
3.02
V
4.46
4.55
4.67
V
VIT–= 1.68V
15
mV
VIT– = 2.25V
20
mV
Vhys
Hysteresis at VSENSEn input
VIT– = 2.93V
30
mV
VIT– = 4.55V
40
mV
WDI = VDD = 6V
IH(AV)
Average high-level input current
WDI
100
150
A
Time average (dc = 88%)
WDI = 0V, VDD = 6V
IL(AV)
Average low-level input current
WDI
–15
–20
A
Time average (dc = 12%)
VIH
High-level input voltage at MR and WDI
0.7 x VDD
V
VIL
Low-level input voltage at MR and WDI
0.3 x VDD
V
Δt / ΔV
Input transition rise and fall rate at MR
50
ns/V
WDI
WDI = VDD = 6V
120
170
A
MR
MR = 0.7
× V
DD, VDD = 6V
–130
–180
A
IH
High-level input current
SENSE1
VSENSE1 = VDD = 6V
5
8
A
SENSE2
VSENSE2 = VDD = 6V
6
9
A
WDI
WDI = 0V, VDD = 6V
–120
–170
A
IL
Low-level input current
MR
MR = 0V, VDD = 6V
–430
–600
A
SENSEn
VSENSE1,2 = 0V
–1
1
A
IDD
Supply current
40
A
CI
Input capacitance
VI = 0V to VDD
10
pF
(1)
The lowest supply voltage at which RESET becomes active. tr, VDD ≥15 s/V.
(2)
To ensure best stability of the threshold voltage, a bypass capacitor (0.1
F ceramic) should be placed close to the supply terminals.
Copyright 1998–2008, Texas Instruments Incorporated
3
Product Folder Link(s): TPS3305
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