MIC2755 Datasheet, PDF (9/12 Pages) Micrel Semiconductor – Battery System Supervisor Preliminary Information

V_BAT(OK) = 3.6V
V_BAT(low) = 3.1V
V_BAT(dead) = 2.9V
Li-Ion
Cell
R1
569k
R2
28k
R3
55.6k
R4
344k
MIC2755
8 _VDD
/POF ⁵
3 _PTH
/NMI ⁶
2 _NTH
/RST ⁷
1 _{RTH(/MR) GND} 4
L1a
33µH
C7 10µF 16V
R6
100k
C1
10µF
16V
MIC3172
IN
SW
EN
COMP
FB
L1b
33µH
R7
4.75k
C5
0.01µF
SGND PGND1 PGND2
C6
3300pF
3.3V @ 200mA
C2
220µF
10V
C3
220µF
10V
C4
0.1µF
R10
3.01k
R8 R9
100k 100k
R11
1.82k
Figure 7. Typical Application Without Manual Reset
µController or
µProcessor
SUPPLY
NMI
RST
GND
V_BAT(OK) = 3.6V
V_BAT(low) = 3.1V
V_BAT(dead) = 2.9V
Li-Ion
Cell
R4
656k
R5
344k
R1
576k
R2
26.7k
SW
R3
400k
MIC2755
8 _VDD
/POF ⁵
3 _PTH
/NMI ⁶
2 _NTH
/RST ⁷
1 _{RTH(/MR) GND} 4
L1a
33µH
C2 10µF 16V
3.3V @ 200mA
R7
100k
C1
10µF
16V
MIC3172
IN
SW
EN
COMP
FB
R8
4.75k
C5
0.01µF
SGND PGND1 PGND2
C6
3300pF
L1b
33µH
C3
220µF
10V
C4
220µF
10V
C5
0.1µF
R11
3.01k
R9 R10
100k 100k
R12
1.82k
Figure 8. Typical Application With Manual Reset
µController or
µProcessor
SUPPLY
NMI
RST
GND