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MC34921AER2 Datenblatt(PDF) 11 Page - Freescale Semiconductor, Inc

Teilenummer MC34921AER2
Bauteilbeschribung  Configurable Motor Driver IC with Power Supplies
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Hersteller  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC34921AER2 Datenblatt(HTML) 11 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
Freescale Semiconductor
11
34921
STATIC ELECTRICAL CHARACTERISTICS
Supervisor Circuitry
Minimum Function B+ for Charge Pump, Oscillator Up
Reset/Fault Registers Valid (10)
B+
9.0
V
Minimum Function V5.0 for RST Operational
RST
VOL ≤ 0.05 V @ 1.0 mA
(10)
V5.0 RST
2.0
V
Minimum Function V3.3 for RST Operational
RST
VOL ≤ 0.05 V @ 1.0 mA
(10)
V3.3 RST
2.0
V
RST
Low Voltage (11)
IRST ≤ 5.0 mA
VOL
0.1
0.25
V
RST
V5.0 Threshold
V5.0 Rising
V5.0 Falling
V5.0 t+
V5.0 t
4.5
4.65
4.6
4.75
4.70
V
RST
Hysteresis for V5.0
VHYSV5.0
10
50
mV
RST
V3.3 Threshold
V3.3 Rising
V3.3 Falling
V3.3t+
V3.3t
2.8
2.9
2.9
3.15
3.0
V
RST
Hysteresis for V3.3
VHYS_3.3
10
15
mV
RST
VCORE Threshold
VCORE Falling
VCORE
85
86
90
%VCORE_
NOM
RST
Hysteresis for VCORE
VHYS CORE
10
mV
Overtemperature Junction Temperature(12)
TJ Rising
TJ(OVER)
140
°C
Overtemperature Hysteresis(12)
TJ Falling
TJ(HYS)
10
30
°C
Thermal Warning (12)
TW
TJ -30
TJ -20
°C
B+ Undervoltage Threshold to Assert RST
V5.0 = +5.0 V, B+ Falling
B+(FAULT)
12
12.75
13.5
V
B+ Undervoltage Threshold Hysteresis(13)
B+FAULT(HYS)
1.0
1.5
2.0
V
Minimum B+ Necessary to Clear B+ Fault
V5.0 = +5.0 V, B+ Rising
B+RECOVERY
15.25
V
Notes
10.
If any of these conditions for this not is true, then RST is activated until all operating conditions are met.
11.
The RST terminal uses an external pull-up, which may be to 5.0 V or 3.3 V.
12.
Guaranteed by design.
13.
Alternately, the minimum B+ fault threshold voltage must not be lower than 12 V, and the B+ fault clear voltage must not be higher than
15.25 V. The hysteresis may be greater than 2.0 V if this requirement is met.
Table 3. Static Electrical Characteristics (continued)
Characteristics noted under conditions 16 V B+ 34 V, 0
°C TA 70°C, and 0°C TJ 100°C unless otherwise noted.
Typical values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit


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