参数资料
型号: TPS2046BDR
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源管理
英文描述: 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封装: GREEN, PLASTIC, MS-012AA, SOIC-8
文件页数: 24/29页
文件大小: 901K
代理商: TPS2046BDR
www.ti.com
SLVS532C – JULY 2004 – REVISED OCTOBER 2007
ELECTRICAL CHARACTERISTICS (continued)
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
SUPPLY CURRENT (TPS2047B)
TJ = 25°C
0.5
2
Supply current, low-level output
No load on OUT, VI(/ENx) = 5.5 V
μA
–40
°C ≤ T
J ≤ 125°C
0.5
10
TJ = 25°C
65
90
Supply current, high-level output
No load on OUT, VI(/ENx) = 0 V
μA
–40
°C ≤ T
J ≤ 125°C
65
110
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, INx = ground
(3)
TJ = 25°C
0.2
μA
UNDERVOLTAGE LOCKOUT
Low-level input voltage, IN, INx
2
2.5
V
Hysteresis, IN, INx
TJ = 25°C
75
mV
OVERCURRENT OC and OCx
Output low voltage, VOL(/OCx)
IO(/OCx) = 5 mA
0.4
V
Off-state current(3)
VO(/OCx) = 5 V or 3.3 V
1
μA
OC deglitch(3)
OCx assertion or deassertion
4
8
15
ms
THERMAL SHUTDOWN(4)
Thermal shutdown threshold(3)
135
°C
Recovery from thermal shutdown(3)
125
°C
Hysteresis(3)
10
°C
(3)
Not tested in production, specified by design.
(4)
The thermal shutdown only reacts under overcurrent conditions.
4
Copyright 2004–2007, Texas Instruments Incorporated
Product Folder Link(s): TPS2045B TPS2055B TPS2046B TPS2047B
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