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参数资料
| 型号： | LTC2908CDDB8-A1 |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | 3 X 2 MM, PLASTIC, M0-229WECD-1, DFN-8 |
| 文件页数： | 10/16页 |
| 文件大小： | 199K |
| 代理商： | LTC2908CDDB8-A1 |
3
LTC2908
2908f
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCC
Internal Operating Voltage
RST in Correct Logic State
q
0.5
6
V
IV1
V1 Input Current
V1 = 5.0V (LTC2908-A1) (Note 4)
q
26
50
A
V1 = 3.3V (LTC2908-B1)
q
24
50
A
IV2
V2 Input Current
V2 = 3.3V (LTC2908-A1) (Note 4)
q
10
20
A
V2 = 2.5V (LTC2908-B1)
q
820
A
IV3
V3 Input Current
V3 = 2.5V (LTC2908-A1)
q
25
A
V3 = 1.8V (LTC2908-B1)
q
25
A
IV4
V4 Input Current
V4 = 1.8V (LTC2908-A1)
q
25
A
V4 = 1.5V (LTC2908-B1)
q
25
A
IVADJ
VADJ1, VADJ2 Input Current
VADJ1 = VADJ2 = 0.55V
q
±15
nA
tRST
Reset Time-Out Period
q
160
200
260
ms
tUV
VX Undervoltage Detect to RST or RST
VX Less Than Reset Threshold VRTX by
250
s
More Than 1%
VOH
Output Voltage High RST (Note 5)
IRST = –1A, VCC = 5V (LTC2908-A1)
q
VCC – 1.5
V
IRST = –1A, VCC = 3.3V (LTC2908-B1)
q
VCC – 1.0
V
VOL
Output Voltage Low RST
VCC = 0.5V, IRST = 5A
q
0.01
0.15
V
VCC = 1.0V, IRST = 100A
q
0.01
0.15
V
VCC = 3.0V, IRST = 2500A
q
0.10
0.30
V
The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are TA = 25°C. VCC = 5V for the LT2908-A1 and VCC = 3.3V for the LTC2908-B1, unless
otherwise noted. (Notes 2, 3)
ELECTRICAL CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The greater of V1, V2 is the internal supply voltage (VCC).
Note 3: All currents into pins are positive; all voltages are referenced to
GND unless otherwise noted.
Note 4: Under typical operating conditions, most of the quiescent current
is drawn from the V1 input. When V2 exceeds V1, V2 supplies most of the
quiescent current.
Note 5: The output pin RST has an internal pull-up to VCC of typically 6A.
However, an external pull-up resistor may be used when a faster rise time
is required or for VOH voltages greater than VCC.
TYPICAL PERFOR A CE CHARACTERISTICS
UW
5V Threshold Voltage
vs Temperature
3.3V Threshold Voltage
vs Temperature
2.5V Threshold Voltage
vs Temperature
TEMPERATURE (
°C)
–50
4.750
4.725
4.700
4.675
4.650
4.625
4.600
25
75
2908 G01
–25
0
50
100
THRESHOLD
VOLTAGE,
V
RT50
(V)
TEMPERATURE (
°C)
–50
3.135
3.115
3.095
3.075
3.055
3.035
25
75
2908 G02
–25
0
50
100
THRESHOLD
VOLTAGE,
V
RT33
(V)
TEMPERATURE (
°C)
–50
2.375
2.360
2.345
2.330
2.315
2.300
25
75
2908 G03
–25
0
50
100
THRESHOLD
VOLTAGE,
V
RT25
(V)
Specifications are at TA = 25°C unless otherwise noted.
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| LTC2908CDDB-A1 | 制造商:Linear Technology 功能描述:Volt Supervisor Monitor 1.8V/2.5V/3.3V/5V 8-Pin DFN EP |
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| LTC2908CDDB-A1#TR | 功能描述:IC MONITOR SIX SUPPLY PREC 8DFN RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:1 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:高有效 复位超时:- 电压 - 阀值:1.8V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-TSOP（0.059"，1.50mm 宽）5 引线 供应商设备封装:5-TSOP 包装:剪切带 (CT) 其它名称:NCP301HSN18T1GOSCT |
| LTC2908CDDB-A1#TRM | 功能描述:IC MONITOR SIX SUPPLY PREC 8DFN RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:1 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:高有效 复位超时:- 电压 - 阀值:1.8V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-TSOP（0.059"，1.50mm 宽）5 引线 供应商设备封装:5-TSOP 包装:剪切带 (CT) 其它名称:NCP301HSN18T1GOSCT |
| LTC2908CDDB-A1#TRMPBF | 功能描述:IC MONITOR SIX SUPPLY PREC 8DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:1 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:高有效 复位超时:- 电压 - 阀值:1.8V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-TSOP（0.059"，1.50mm 宽）5 引线 供应商设备封装:5-TSOP 包装:剪切带 (CT) 其它名称:NCP301HSN18T1GOSCT |
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