MC33972 Datasheet, PDF (6/28 Pages) Motorola, Inc – Multiple Switch Detection Interface with Suppressed Wake-Up

ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 4. Static Electrical Characteristics
Characteristics noted under conditions 3.1 V ≤ V_DD ≤ 5.25 V, 8.0 V ≤ V_PWR ≤ 16 V, -40°C ≤ T_C ≤ 125°C, unless otherwise
noted. Where applicable, typical values reflect the parameter’s approximate average value with V_PWR = 13 V, T_A = 25°C.
Characteristic
Symbol
Min
Typ
Max
Unit
POWER INPUT
Supply Voltage
Supply Voltage Range Quasi-Functional ⁽⁷⁾
Fully Operational
Supply Voltage Range Quasi-Functional ⁽⁷⁾
V_{PWR (QF)}
5.5
V_{PWR (FO)}
8.0
V_{PWR (QF)}
26
Supply Current
All Switches Open, Normal Mode, Tri-State Disabled
I_{PWR (ON)}
–
Sleep State Supply Current
Scan Timer = 64 ms, Switches Open
I_{PWR (SS)}
40
Logic Supply Voltage
Logic Supply Current
All Switches Open, Normal Mode
V_DD
3.1
I_DD
–
Sleep State Logic Supply Current
Scan Timer = 64 ms, Switches Open
I_DD(SS)
–
SWITCH INPUT
Pulse Wetting Current Switch-to-Battery (Current Sink)
I_PULSE
12
Pulse Wetting Current Switch-to-Ground (Current Source)
I_PULSE
12
Sustain Current Switch-to-Battery Input (Current Sink)
I_SUSTAIN
1.8
Sustain Current Switch-to-Ground Input (Current Source)
I_SUSTAIN
1.8
Sustain Current Matching Between Channels on Switch-to-Ground I/Os
I_MATCH
I_SUS(MAX) - I_SUS(MIN)
I_SUS(MIN)
X 100
–
V
–
8.0
–
26
–
38/40
mA
2.0
4.0
µA
70
100
–
5.25
V
mA
0.25
0.5
µA
10
20
15
18
mA
16
18
mA
2.0
2.2
mA
2.0
2.2
mA
%
2.0
4.0
Input Offset Current When Selected as Analog
Input Offset Voltage When Selected as Analog
V_{(SP&SGINPUTS)} to AMUX Output
I_OFFSET
-2.0
1.4
2.0
µA
V_OFFSET
mV
-10
2.5
10
Analog Operational Amplifier Output Voltage
Sink 250 µA
V_OL
mV
–
10
30
Analog Operational Amplifier Output Voltage
Source 250 µA
Switch Detection Threshold
33972 / 33972A
V_OH
V
V_DD - 0.1
–
–
V_TH
V
3.70
4.0
4.3
Switch Input Voltage Range
33972
33972A
V_IN
V
-14
–
38
-14
–
40
Temperature Monitor ⁽⁸⁾, ⁽⁹⁾
Temperature Monitor Hysteresis ⁽⁹⁾
T_LIM
155
–
185
°C
T_LIM(HYS)
5.0
10
15
°C
Notes
7. Device operational. Table parameters may be out of specification.
8. Thermal shutdown of 16 mA pullup and pulldown current sources only. 2.0 mA current source/sink and all other functions remain active.
9. This parameter is guaranteed by design but is not production tested.
33972
6
Analog Integrated Circuit Device Data
Freescale Semiconductor