參數(shù)資料
型號(hào)： TPS2376DDA-HG4
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝： GREEN, PLASTIC, POWER PAD, SOIC-8
文件頁(yè)數(shù)： 17/23頁(yè)
文件大?。?/td> 640K
代理商： TPS2376DDA-HG4
www.ti.com
RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
SLVS646A – SEPTEMBER 2006 – REVISED SEPTEMBER 2006
MIN
MAX
UNIT
Input voltage range
VDD, PG, RTN
0
57
V
Operating current range (sinking)
RTN
0
600
mA
Classification resistor(1)
CLASS
255
4420
R(ILIM) Inrush limit program resistor (1)
125
1000
k
Sinking current
PG
0
2
mA
-40
125
IRTN ≤ 400 mA
TJ
Operating junction temperature
°C
400 mA < IRTN ≤ 600 mA(2)
-40
105
TA
Operating free–air temperature
-40
85
°C
(1)
Voltage should not be externally applied to CLASS and ILIM.
(2)
Temperature limitation is for 10 year life-expectancy at this temperature. Short-term operation to 125
°C is permissable.
V
(VDD) = 48 V, R(DET) = 24.9 k, R(CLASS) = 255 , R(ILIM) = 287 k, and –40°C ≤ TJ ≤ 125°C, unless otherwise noted. Positive
currents are into pins. Typical values are at 25
°C. All voltages are with respect to VSS unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DETECTION
DET open, V(VDD) = V(RTN) = 1.9 V, measure
Offset current
0.3
3
A
I(VDD) + I(RTN)
DET open, V(VDD) = V(RTN) = 10.1 V, measure
Sleep current
4
12
A
I(VDD) + I(RTN)
DET leakage current
V(DET) = V(VDD) = 57 V, measure I(DET)
0.1
5
A
V(RTN) = V(VDD),
V(VDD) = 1.4 V
53.7
56
58.3
A
R(DET) = 24.9 k,
Detection current
measure I(VDD) + I(RTN) +
V(VDD) = 10.1 V
395
410
417
A
I(DET)
CLASSIFICATION
Measure I(VDD) + I(RTN), 13 V ≤ V(VDD) ≤ 21 V,
V(VDD) = V(RTN)
R(CLASS) = 4420
2.2
2.4
2.8
R(CLASS) = 953
10.3
10.6
11.3
I(CLASS)
Classification current(1)
mA
R(CLASS) = 549
17.7
18.3
19.5
R(CLASS) = 357
27.1
28
29.5
R(CLASS) = 255
38
39.4
41.2
Regulator turns on, V(VDD) rising
10.2
11.3
13
V(CL_ON)
Classification lower threshold
V
Hysteresis
1.6
1.8
1.95
V(CU_OFF)
Regulator turns off, V(VDD) rising
21
21.9
23
V
Classification upper threshold
V(CU_H)
Hysteresis
0.5
0.78
1
V
Ilkg
Leakage current
V(CLASS) = 0 V, V(VDD) = 57 V
1
A
PASS DEVICE
rDS(on)
On resistance
0.58
1
Leakage current
V(VDD) = V(RTN) = 30 V
15
A
Current limit
V(RTN) = 1 V
625
765
900
mA
I(LIM)
Inrush limit
V(RTN) = 2 V, R(ILIM) = 178 k
160
224
296
mA
V(RTN) falling, R(ILIM) = 287 k, inrush
Inrush current termination (2)
85%
91%
100%
state
→normal operation
Leakage current, ILIM
V(VDD) = 15 V, V(UVLO) = 0 V
1
A
(1)
Classification is tested with exact resistor values. A 1% tolerance classification resistor ensures compliance with IEEE 802.3af limits.
(2)
This parameter specifies the RTN current value, as a percentage of the steady state inrush current, below which it must fall to make PG
assert (open-drain).
3
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