参数资料
型号: LTC2903CS6-A1#TRM
厂商: Linear Technology
文件页数: 3/16页
文件大小: 0K
描述: IC QUAD SPLY MONITOR ADJ 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,可调
工作温度: 0°C ~ 70°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: LTC2903CS6-A1
LTC2903CS6-A1-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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