MAX16047_09 Datasheet, PDF (55/61 Pages) Maxim Integrated Products – 12-Channel/8-Channel EEPROM-Programmable System Managers with Nonvolatile Fault Registers

12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
Simple slew-rate control is accomplished by adding a
capacitor from the gate to ground. The slew rate is
approximated by the RC charge curve of the pullup
resistor acting with the capacitor from gate to ground.
Note that the power-off is not well controlled due to the
absence of the 100Ω pulldowns.
Ensure that MOSFETs have a low gate-to-source
threshold (V_{GS_TH}) and R_DS(ON). See Table 31 for rec-
ommended n-channel MOSFETs.
Layout and Bypassing
Bypass DBP and ABP each with a 1µF ceramic capacitor
to GND. Bypass V_CC with a 10µF capacitor to ground.
Avoid routing digital return currents through a sensitive
analog area, such as an analog supply input return path
or ABP’s bypass capacitor ground connection. Use dedi-
cated analog and digital ground planes. Connect the
capacitors as close as possible to the device.
Table 31. Recommended MOSFETs
MANUFACTURER
PART
MAX V_DS
(V)
FDC633N
30
FDP8030L
30
Fairchild
FDB8030L
FDD6672A
30
FDS8876
30
Si7136DP
20
Si4872DY
30
Vishay
SUD50N02-09P
20
Si1488DH
20
IRL3716
20
IRL3402
20
International
Rectifier
IRL3715Z
20
IRLM2502
20
V_{GS_TH}
(V)
0.67
1.5
1.2
2.5
3
1
3
0.95
3
0.7
2.1
1.2
R_DS(ON) AT
V_{GS =} 4.5V
(mΩ)
42
4.5
9.5
10.2
4.5
10
17
49
4.8
10
15.5
45
I_MAX AT 50mV
VOLTAGE
DROP
(A)
Qg (typ)
(nC)
PACKAGE
1.19
11.11
5.26
2.94
11.11
5
2.94
1.02
11 Super SOT-6
120 ^TO-220
TO-263AB
33 TO-252
15 SO-8
24.5 SO-8
27 SO-8
10.5 TO-252
6
SOT-363
SC70-6
TO220AB
10.4
53 D²PAK
TO-262
5
78
(max)
TO220AB
TO220AB
3.22
7
D²PAK
TO-262
1.11
8
SOT23-3
Micro3
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