參數(shù)資料
型號(hào)： TPS2046BDR
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝： GREEN, PLASTIC, MS-012AA, SOIC-8
文件頁(yè)數(shù)： 23/29頁(yè)
文件大小： 901K
代理商： TPS2046BDR
www.ti.com
RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
SLVS532C – JULY 2004 – REVISED OCTOBER 2007
MIN
MAX
UNIT
VI(IN), VI(INx)
Input voltage
2.7
5.5
V
VI(/ENx), VI(ENx)
Input voltage
0
5.5
V
IO(OUT), IO(OUTx)
Continuous output current
0
250
mA
TJ
Operating virtual junction temperature
-40
125
°C
over recommended operating junction temperature range, VI(IN) = 5.5 V, IO = 0.25 A, VI(ENx) = 0 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS(1)
MIN
TYP
MAX
UNIT
POWER SWITCH
Static drain-source on-state resistance,
VI(IN) = 5 V or 3.3 V, IO = 0.25 A
–40
°C ≤ T
J≤ 125°C
70
135
m
5-V operation and 3.3-V operation
rDS(on)
Static drain-source on-state resistance,
VI(IN) = 2.7 V,
IO = 0.25 A
–40
°C≤ T
J≤ 125°C
75
150
m
2.7-V operation(2)
VI(IN) = 5.5 V
0.6
1.5
tr
(2)
Rise time, output
VI(IN) = 2.7 V
0.4
1
CL = 1 μF,
TJ = 25°C
ms
RL = 20
VI(IN) = 5.5 V
0.05
0.5
tf
(2)
Fall time, output
VI(IN) = 2.7 V
0.05
0.5
ENABLE INPUT ENx
VIH
High-level input voltage
2.7 V
≤ VI(IN) ≤ 5.5 V
2
V
VIL
Low-level input voltage
2.7 V
≤ VI(IN) ≤ 5.5 V
0.8
II
Input current
VI(/ENx) = 0 V or 5.5 V
-0.5
0.5
μA
ton
(2)
Turnon time
CL = 100 μF, RL = 20
3
ms
toff
(2)
Turnoff time
CL = 100 μF, RL = 20
10
CURRENT LIMIT
VI(IN) = 5 V, OUT connected to GND, device enabled into
IOS
Short-circuit output current
0.3
0.5
0.7
A
short-circuit
SUPPLY CURRENT (TPS2045B, TPS2055B)
TJ = 25°C
0.5
1
No load on OUT, VI(/ENx) = 5.5 V
Supply current, low-level output
μA
or VI(/ENx) = 0 V
–40
°C ≤ T
J ≤ 125°C
0.5
5
TJ = 25°C
43
60
No load on OUT, VI(/ENx) = 0 V
Supply current, high-level output
μA
or VI(/ENx) = 5.5 V
–40
°C ≤ T
J ≤ 125°C
43
70
OUT connected to ground,
Leakage current
–40
°C ≤ T
J ≤ 125°C
1
μA
VI(/ENx) = 5.5 V, or VI(ENx) = 0 V
Reverse leakage current
VI(OUTx) = 5.5 V, IN = ground
(2)
TJ = 25°C
0
μA
SUPPLY CURRENT (TPS2046B)
TJ = 25°C
0.5
1
Supply current, low-level output
No load on OUT, VI(/ENx) = 5.5 V
μA
–40
°C ≤ T
J ≤ 125°C
0.5
5
TJ = 25°C
50
70
Supply current, high-level output
No load on OUT, VI(/ENx) = 0 V
μA
-40
°C ≤ T
J ≤ 125°C
50
90
OUT connected to ground,
Leakage current
-40
°C ≤ T
J ≤ 125°C
1
μA
VI(ENx) = 5.5 V
Reverse leakage current
VI(OUTx) = 5.5 V, IN = ground
(2)
TJ = 25°C
0.2
μA
(1)
Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account
separately.
(2)
Not tested in production, specified by design.
Copyright 2004–2007, Texas Instruments Incorporated
3
Product Folder Link(s): TPS2045B TPS2055B TPS2046B TPS2047B
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