Voltage Regulator
Table 5. Supply Current Specifications
Parameter
Symbol
Test Conditions
and Comments
Min
Typ
Max
Unit
Type
Pin VSUP
9.1
9.2
Standby mode current
Operating mode current
I SUP1
I SUP2
Circuit in configuration C
300
1.5
500
2.5
μ A
mA
No current sunk from VDD
Drivers TD1/2 switched off
Tx forced to low
12
Voltage Regulator
Typical values reflect average measurements at 6V ≤ V SUP ≤ 16V, V SS = 0V, T J = –40 ° C to +125 ° C, unless otherwise noted
Table 6. Voltage Regulator Specifications
Parameter
Symbol
Test Conditions
and Comments
Min
Typ
Max
Unit
Type
Pins VSUP and VDD
1.1 Output Voltage (5.5V ≤ V SUP ≤ 40V)
1.3 Total Output Current
1.5 Load Regulation
V VDD1
I VDD1
V LoadReg1
Without external MOS
transistor, I OUT ≤ 50mA
Without external MOS
4.75
5.0
20
5.25
50
60
V
mA
mV
transistor, 1 to 50mA I OUT
change
1.9 Output Voltage (5.5V ≤ V SUP ≤ 40V)
1.11 Total Output Current
V VDD2
I VDD2
With external MOS transistor,
I OUT ≤ 150mA
4.7
5.0
5.3
150
V
mA
The stability is ensured with a
decoupling capacitor between
VDD and VSS: C OUT ≥ 10 μ F
with ESR ≤ 3 Ω.
The current capability can be
increased up to 150mA by
using an external N channel
MOS transistor (see Figure 1 ).
The main characteristics for
choosing this component are
VT < 1.8V and BVDSS > 40V
1.6 Load Regulation
V LoadReg2 With external MOS transistor,1
65
150
mV
to 150mA I OUT change
1.4 Line Regulation (6V ≤ V SUP ≤ 16V)
V LineReg
I OUT = 1mA
mV
13
Low-Voltage Reset
Typical values reflect average measurements at 6V ≤ V SUP ≤ 16V, V SS = 0V, T J = –40 ° C to +125 ° C, unless otherwise noted
MC33690 Standalone Tag Reader Circuit, Rev. 5
14
Freescale Semiconductor
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