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参数资料
| 型号： | LTC2904CDDB8#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | 3 X 2 MM, M0-229WECD-1, PLASTIC, DFN-8 |
| 文件页数： | 9/16页 |
| 文件大小： | 179K |
| 代理商： | LTC2904CDDB8#PBF |
LTC2904/LTC2905
2
29045f
Terminal Voltages
V1, V2 ..................................................... –0.3V to 7V
S1, S2, TOL .............................. –0.3V to (VCC +0.3V)
RST ......................................................... –0.3V to 7V
RST (LTC2904) ....................................... –0.3V to 7V
TMR (LTC2905) ...................................... –0.3V to 7V
ORDER PART
NUMBER
DDB8 PART MARKING
TJMAX = 125°C, θJA = 250°C/W
LBCZ
LBDB
LTAJF
LBCY
ABSOLUTE
AXI U
RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UU
W
(Note 1, 2)
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. V1 = 2.5V, V2 = 1V, S1 = TOL = V1, S2 = 0V, unless otherwise noted.
(Notes 2, 3, 4)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VRT50
5V, 5% Reset Threshold
V1 Input Threshold
q
4.600
4.675
4.750
V
5V, 7.5% Reset Threshold
q
4.475
4.550
4.625
V
5V, 10% Reset Threshold
q
4.350
4.425
4.500
V
VRT33
3.3V, 5% Reset Threshold
V1, V2 Input Threshold
q
3.036
3.086
3.135
V
3.3V, 7.5% Reset Threshold
q
2.954
3.003
3.053
V
3.3V, 10% Reset Threshold
q
2.871
2.921
2.970
V
VRT25
2.5V, 5% Reset Threshold
V1, V2 Input Threshold
q
2.300
2.338
2.375
V
2.5V, 7.5% Reset Threshold
q
2.238
2.275
2.313
V
2.5V, 10% Reset Threshold
q
2.175
2.213
2.250
V
VRT18
1.8V, 5% Reset Threshold
V2 Input Threshold
q
1.656
1.683
1.710
V
1.8V, 7.5% Reset Threshold
q
1.611
1.638
1.665
V
1.8V, 10% Reset Threshold
q
1.566
1.593
1.620
V
VRT15
1.5V, 5% Reset Threshold
V2 Input Threshold
q
1.380
1.403
1.425
V
1.5V, 7.5% Reset Threshold
q
1.343
1.365
1.388
V
1.5V, 10% Reset Threshold
q
1.305
1.328
1.350
V
VRT12
1.2V, 5% Reset Threshold
V2 Input Threshold
q
1.104
1.122
1.140
V
1.2V, 7.5% Reset Threshold
q
1.074
1.092
1.110
V
1.2V, 10% Reset Threshold
q
1.044
1.062
1.080
V
VRT10
1V, 5% Reset Threshold
V2 Input Threshold
q
0.920
0.935
0.950
V
1V, 7.5% Reset Threshold
q
0.895
0.910
0.925
V
1V, 10% Reset Threshold
q
0.870
0.885
0.900
V
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Operating Temperature Range
LTC2904C/LTC2905C ................................ 0
°C to 70°C
LTC2904I/LTC2905I ..............................–40
°C to 85°C
Storage Temperature Range ..................–65
°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300
°C
ORDER PART
NUMBER
TS8 PART MARKING
LTC2904CDDB8
LTC2904IDDB8
LTC2905CDDB8
LTC2905IDDB8
LTC2904CTS8
LTC2904ITS8
LTC2905CTS8
LTC2905ITS8
LTBCJ
LTBCK
LTAJD
LTAJE
TOP VIEW
DDB8 PACKAGE
8-LEAD (3mm
× 2mm) PLASTIC DFN
EXPOSED PAD IS GND (PIN 9),
MUST BE SOLDERED TO PCB
5
6
7
8
4
3
2
1
GND
RST
RST/TMR*
V2
TOL
S1
S2
V1
9
V2 1
RST/TMR* 2
RST 3
GND 4
8 V1
7 S2
6 S1
5 TOL
TOP VIEW
TS8 PACKAGE
8-LEAD PLASTIC TSOT-23
TJMAX = 125°C, θJA = 250°C/W
* RST FOR LTC2904
TMR FOR LTC2905
* RST FOR LTC2904
TMR FOR LTC2905
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