M62021L/P/FP
Schmitt Trigger Circuit
Since waveforms show a gentle rise due to the RC delay circuit, INV1, INV2, R5, and R6 constitute a Schmitt trigger
circuit to produce hysteresis so as to prevent each output from chattering.
Internal Circuit
Ct
4
R1
60.94k
R3
22k
R4
R5
47
10k
Com
VR
–
+
Q1
R2
24k
Vref
1.24V
VIN
RES
3
5
R6
47k
INV1 INV2
R7
10k
Q2
INV3 INV4
RES
7
Q4
1 VOUT
R8
R10 R11
10k
800 10k
D1
2 VBAT
Q3
INV5 INV6 INV7
R9
Q5
INV8 INV9
5k R10
22k
8 CS
6 GND
Figure 5 Internal Circuit
REJ03D0784-0200 Rev.2.00 Jun 15, 2007
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