µPD161644
1.1 Boost Voltage Construction
The boost voltage generated in µPD161644 is shown below.
VGD = VR
VDC: 2.7 V
VSS1: 0 V
VDD2: 5.4 V
VDD1 = VR x 3
= 15 V
VR: 5 V
VSS4 = VDC x −1
= −2.7 V
VSS2 = VR x −2
= −10 V
VSS3 = VR x −3
= −15 V
VGD = VDD2
VDC: 2.7 V
VSS1: 0 V
VDD2: 5.4 V
VDD1 = VDD2 x 3
= 16.2 V
VR: 5 V
VSS4 = VDC x −1
= −2.7 V
VSS2 = VDD2 x −2
= −10.8 V
VSS3 = VDD2 x −3
= −16.2 V
1.2 Boost Voltage Auto Start and Rising Order
VGD = VR, VCD2 = H
VDD1 = 3 x VR
T1 T2 T3
T4
VDD2 = 3 x VDC
VR
DCON
VSS1
VSS4 = −VDC
VSS2 = −2 x VR
VSS3 = −3 x VR
T1, T2, T3, T4: changeable by PUPT0, PUPT01, DUPF0, DUPF1
1.3 VS_AMP Circuit
VS_AMP circuits are shown below.
TESTOUT1
MVS
VREF
RbS
RaS
−
+
RcS
Internal Resistor Mode
EXRV = L
VDD2
C3
5V
VS 4 V
C3
TESTOUT1
VREF
−
MVS
+
RbS RaS
External Resistor Mode
EXRV = H
VS = (1+ RbS )VREF
RaS
VDD2
C3
5V
VS 4 V
C3
Preliminary Product Information S15797EJ1V4PM
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