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参数资料
| 型号： | LTC2903IS6-B1#TRM |
| 厂商： | Linear Technology |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC MONITOR SUPPLY QUAD SOT23-6 |
| 标准包装： | 500 |
| 类型： | 多压监控器 |
| 监视电压数目： | 4 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 1.593V，2.213V，2.921V，4.425V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-23-6 |
| 包装： | 带卷 (TR) |
| 其它名称： | LTC2903IS6-B1 LTC2903IS6-B1-ND |
LTC2903-1
ELECTRICAL CHARACTERISTICS
(LTC2903-D1) The ● denotes the specifications which apply over the full
operating temperature range, otherwise specifications are at T A = 25 ° C. V CC = 3.3V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V RT33
V RTAV2
V RTAV3
V RTAV4
3.3V, 5% Reset Threshold
V2 Adjustable Threshold
V3 Adjustable Threshold
V4 Adjustable Threshold
V1 Input Threshold
V2 Input Threshold
V3 Input Threshold
V4 Input Threshold
●
●
●
●
3.036
0.492
0.492
0.492
3.086
0.500
0.500
0.500
3.135
0.508
0.508
0.508
V
V
V
V
(LTC2903-E1) The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at
T A = 25 ° C. V CC = 5V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V RT50
V RTAV2
V RTAV3
V RTAV4
5V, 5% Reset Threshold
V2 Adjustable Threshold
V3 Adjustable Threshold
V4 Adjustable Threshold
V1 Input Threshold
V2 Input Threshold
V3 Input Threshold
V4 Input Threshold
●
●
●
●
4.600
0.492
0.492
0.492
4.675
0.500
0.500
0.500
4.750
0.508
0.508
0.508
V
V
V
V
The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T A = 25 ° C.
V CC = 3.3V unless otherwise noted.
SYMBOL
I V1
PARAMETER
V1 Input Current (Note 4)
CONDITIONS
V1 = 3.3V (LTC2903-A1, LTC2903-D1)
V1 = 5V (LTC2903-B1, LTC2903-C1,
●
●
MIN
TYP
20
25
MAX
80
80
UNITS
μ A
μ A
LTC2903-E1)
I V2
V2 Input Current (Note 4)
V2 = 2.5V (LTC2903-A1)
V2 = 3.3V (LTC2903-B1, LTC2903-C1)
●
●
8
10
30
30
μ A
μ A
V2 = 0.55V (LTC2903-D1, LTC2903-E1) ●
± 30
nA
I V3
V3 Input Current
V3 = 1.8V (LTC2903-A1, LTC2903-C1)
V3 = 2.5V (LTC2903-B1)
●
●
8
10
30
30
μ A
μ A
V3 = 0.55V (LTC2903-D1, LTC2903-E1) ●
± 30
nA
I V4
V4 Input Current
V4 = 0.55V (LTC2903-A1)
V4 = 1.8V (LTC2903-B1)
V4 = –5.2V (LTC2903-C1)
V4 = 0.55V (LTC2903-D1, LTC2903-E1)
●
●
●
●
2
–3
± 30
4
–6
± 30
nA
μ A
μ A
nA
t RST
t UV
Reset Time-Out Period
V X Undervoltage Detect to RST
V X Less Than Threshold V RTX by
●
140
200
150
260
ms
μ s
More Than 1%
V OH
Output Voltage High RST (LTC2903-1) (Note 5)
I RST(DN) = –1 μ A (LTC2903-A1,
●
V2 – 1
V
LTC2903-B1, LTC2903-C1)
(LTC2903-D1, LTC2903-E1)
●
V1 – 1
V
V OL
Output Voltage Low RST (Note 6)
V CC = 0.2V, I RST = 0.1 μ A
V CC = 0.5V, I RST = 5 μ A
V CC = 1V, I RST = 200 μ A
V CC = 3V, I RST = 2500 μ A
●
●
●
●
5
10
25
100
60
150
300
300
mV
mV
mV
mV
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: All currents into pins are positive, all voltages are referenced to
GND unless otherwise noted.
Note 3: The internal supply voltage (V CC ) is generated from the greater
voltage on the V1 and V2 inputs. V CC = V1 for options D1 and E1.
Note 4: Under typical operating conditions, quiescent current is drawn
from the V1 input. When V2 exceeds V1, V2 supplies the quiescent
current. V1 only for options D1 and E1.
Note 5: The RST output pin on the LTC2903-1 has an internal pull-up to
V2 (for options A1, B1 and C1) of typically 10 μ A. However, for faster rise
times or for V OH voltages greater than V2, use an external pull-up resistor.
The internal pull-up is connected to V1 for options D1 and E1.
Note 6: For options A1, B1 and C1, the RST pulldown current is derived
from V1, V2 and V3. For options D1 and E1, pulldown strength is derived
from V1.
29031f a
3
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