參數(shù)資料
型號(hào): MC33164
廠商: Microsemi Corporation
英文描述: 5V UNDERVOLTAGE SENSING CIRCUIT
中文描述: 5V的欠壓檢測(cè)電路
文件頁(yè)數(shù): 5/8頁(yè)
文件大小: 150K
代理商: MC33164
MC34164 MC33164
5
MOTOROLA ANALOG IC DEVICE DATA
TA = 0
°
C
VO
0
ISink, SINK CURRENT (mA)
4.0
8.0
12
16
20
TA = 70
°
C
TA = 0
°
C
Vin, Reset = 4 V
Figure 9. MC3X164–3 Reset Output
Saturation versus Sink Current
Figure 10. MC3X164–5 Reset Output
Saturation versus Sink Current
Figure 11. Clamp Diode Forward Current
versus Voltage
VO
Figure 12. Reset Delay Time
(MC3X164–5 Shown)
0
VSink, SINK CURRENT (mA)
4.0
8.0
12
16
, FORWARD VOLTAGE (V)
0.4
0.8
1.2
1.6
IF
20
TA = 25
°
C
Figure 13. Low Voltage Microprocessor Reset
Power
Supply
1.2 Vref
Microprocessor
Circuit
2 (2)
R
1 (1)
3 (4)
Reset
CDLY
A time delayed reset can be accomplished with the addition of CDLY. For systems with extremely fast power
supply rise times (< 500 ns) it is recommended that the RCDLY time constant be greater than 5.0
μ
s. Vth(MPU) is
the microprocessor reset input threshold.
tDLY = RCDLY In
1 –
Vth(MPU)
Vin
1
TA = 25
°
C
TA = 0
°
C
TA = 70
°
C
TA = 25
°
C
TA = 70
°
C
Vin = 0 V
TA = 25
°
C
VF
Vin = 2.4 V
TA = 70
°
C
TA = 0
°
C
TA = 25
°
C
Reset
Vin
Vin = 5.0 V to 4.0 V
RL = 43 k
TA = 25
°
C
Reset
Vin
5.0V
4.0V
Ref
43k
90%
5.0 V
4.0 V
5.0
μ
s/DIV
10
%
4.0
3.0
2.0
1.0
0
4.0
3.0
2.0
1.0
0
32
24
16
8.0
0
0
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