IRMCK343 Datasheet, PDF (18/35 Pages) International Rectifier – Sensorless Motor Control IC for Appliances

IRMCK343
7.2 Analog to Digital Converter AC Characteristics
Unless specified, Ta = 25˚C.
Symbol
Parameter
T_CONV
T_HOLD
Conversion time
Sample/Hold
maximum hold time
Table 9.
Min
Typ
Max
-
-
2.05 μsec
-
-
10 μsec
A/D Converter AC Characteristics
Condition
(1)
Voltage droop ≤
15 LSB
(see figure below)
Note:
(1) Data guaranteed by design.
Input Voltage
Voltage droop
S/H Voltage
tSAMPLE
THOLD
Figure 8 Voltage droop of sample and hold
7.3 Op Amp AC Characteristics
- OP amps for current sensing (IFB+, IFB-, IFBO, IPFC+, IPFC-, IPFCO)
Unless specified, Ta = 25˚C.
Symbol
Parameter
Min
Typ
Max
Condition
OP_SR
OP_IMP
T_SET
OP amp slew rate
OP input impedance
Settling time
-
10 V/μsec
-
V_AVDD = 1.8 V, CL
= 33 pF ⁽¹⁾
-
10⁸ Ω
-
(1)
-
400 ns
-
V_AVDD = 1.8 V, CL
= 33 pF ⁽¹⁾
Table 10. Current Sensing OP amp Amp AC Characteristics
Note:
(1) Data guaranteed by design.
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