參數(shù)資料
型號： TPS2052BDRB
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： PLASTIC, SON-8
文件頁數(shù)： 23/51頁
文件大?。?/td> 1451K
代理商： TPS2052BDRB
www.ti.com
SLVS514K – JUNE 2010 – REVISED DECEMBER 2008
RECOMMENDED OPERATING CONDITIONS
MIN
MAX
UNIT
Input voltage, VI(IN), VI(INx)
2.7
5.5
V
Input voltage, VI(EN), VI(ENx), VI(EN), VI(ENx)
0
5.5
V
Continuous output current, IO(OUT), IO(OUTx)
0
500
mA
Operating virtual junction temperature, TJ
-40
125
°C
ELECTRICAL CHARACTERISTICS
over recommended operating junction temperature range, VI(IN) = 5.5 V, IO = 0.5 A, VI(/ENx) = 0 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS(1)
MIN
TYP
MAX
UNIT
POWER SWITCH
Static drain-source on-state
D and DGN packages
70
135
VI(IN) = 5 V or 3.3 V, IO = 0.5 A,
resistance, 5-V operation
m
-40°C
≤ TJ ≤ 125°C
DBV package only
95
140
and 3.3-V operation
Static drain-source on-state
rDS(on)
VI(IN) = 2.7 V, IO = 0.5 A,
resistance, 2.7-V
D and DGN packages
75
150
m
-40°C
≤ TJ ≤ 125°C
operation(2)
Static drain-source on-state
VI(IN) = 5 V, IO = 1.0 A, OUT1 and OUT2
DGN package,
49
m
resistance, 5-V operation
connected, 0°C
≤ TJ ≤ 70°C
TPS2042B/52B
VI(IN) = 5.5 V
0.6
1.5
tr
(2)
Rise time, output
VI(IN) = 2.7 V
0.4
1
CL = 1 mF,
TJ = 25°C
ms
RL = 10
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 EN AND 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
mA
ton
(2)
Turnon time
CL = 100 mF, RL = 10
3
ms
toff
(2)
Turnoff time
CL = 100 mF, RL = 10
10
CURRENT LIMIT
TJ = 25°C
0.75
1
1.25
VI(IN) = 5 V, OUT connected to GND,
device enabled into short-circuit
-40°C
≤ TJ ≤ 125°C
0.7
1
1.3
IOS
Short-circuit output current
A
VI(IN) = 5 V, OUT1 and OUT2 connected to
0°C
≤ TJ ≤ 70°C
GND, device enabled into short-circuit,
1.5
TPS2042B/52B
measure at IN
SUPPLY CURRENT (TPS2041B, TPS2051B)
TJ = 25°C
0.5
1
No load on OUT, VI(ENx) = 5.5 V,
Supply current, low-level output
mA
or VI(ENx) = 0 V
-40°°C
≤ TJ ≤ 125°C
0.5
5
TJ = 25°C
43
60
No load on OUT, VI(ENx) = 0 V,
Supply current, high-level output
mA
or VI(ENx) = 5.5 V
-40°C
≤ TJ ≤ 125°C
43
70
OUT connected to ground, VI(ENx) = 5.5 V,
Leakage current
-40°C
≤ TJ ≤ 125°C
1
mA
or VI(ENx) = 0 V
Reverse leakage current
VI(OUTx) = 5.5 V, IN = ground
(2)
TJ = 25°C
0
mA
(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 2010–2008, Texas Instruments Incorporated
3
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