MAX6870/MAX6871
EEPROM-Programmable Hex/Quad
Power-Supply Sequencers/Supervisors with ADC
_______________________________________________________________________________________ 3
SYMBOL
TYP MAX
IN1 Input Leakage Current I
LIN1
For V
IN1
< the highest of V
IN3
to V
IN6
100 140 µA
IN2 Input Impedance R
IN2
160 230 320
IN3 to IN6 Input Impedance
R
IN3
to
R
IN6
V
IN1
> 6.5V
70 100 145
Power-Up Delay
t
PU
V
ABP
≥ V
UVLO
3.5
IN_ to PO_ Delay t
DPO
V
IN_
falling or rising, 100mV overdrive 25 µs
000 25 µs
001
1.406 1.5625 1.719
5.625 6.25 6.875
22.5
27.5
100 45 50 55
101 180 200 220
110 360 400 440
PO_ Timeout Period t
RP
Register contents
(Table 25)
111
1440 1600 1760
V
ABP
≥ +2.5V, I
SINK
= 500µA 0.3
PO1–PO4 (MAX6870), PO1/PO2
(MAX6871) Output Low (Note 3)
V
OL
V
ABP
≥ +4.0V, I
SINK
= 2mA 0.4
V
V
ABP
≥ +2.5V, I
SINK
= 1mA 0.3
P O5–P O8 ( M AX 6870) , P O 3/P O4/
P O5 ( M AX 6871) O utp ut Low ( N ote 3)
V
OL
V
ABP
≥ +4.0V, I
SINK
= 4mA 0.4
V
PO1–PO8 Output Initial Pulldown
Current
I
PD
V
ABP
≤ V
UVLO
, V
PO_
= 0.8V 10 40 µA
PO1–PO8 Output Open-Drain
Leakage Current
I
LKG
Output high impedance -1 +1 µA
PO1–PO8 Output Pullup
Resistance, Weak Pullup Selected
15.0
PO1–PO4 (MAX6870), PO1/PO2
(MAX6871) Turn-On Time, Charge
Pump Selected (Note 4)
t
ON
C
PO_
= 1500pF, V
ABP
= +3.3V,
V
PO_
= +7.8V
0.5 1.5 3.0
PO1–PO4 (MAX6870), PO1/PO2
(MAX6871) Turn-Off Time, Charge
Pump Selected
t
OFF
C
PO_
= 1500pF, V
ABP
= +3.3V,
V
PO_
= +0.5V
30 µs
With respect to V
ABP
, I
PO_
< 100nA 5.5
PO1–PO4 (MAX6870), PO1/PO2
(MAX6871) Output High,
Charge Pump Selected (Notes 3, 4)
V
OHCP
With respect to V
ABP
, I
PO_
< 1µA 4.0 5.0 6.0
V
Any one of V
IN3
to V
IN6
≥ +2.7V, I
SOURCE
=
10mA, output pulled up to the same IN_
1.5
Any one of V
IN3
to V
IN6
≥ +2.7V, I
SOURCE
=
1mA, output pulled up to the same IN_
0.8 x
V
IN_
PO5–PO8 (MAX6870), PO3/PO4/
PO5 (MAX6871) Output High,
Push-Pull Selected (Note 3)
V
OH
Any one of V
IN3
to V
IN6
≥ +4.5V, I
SOURCE
=
2mA, output pulled up to the same IN_
0.8 x
V
IN_
ELECTRICAL CHARACTERISTICS (continued)
(V
IN1
= +6.5V to +13.2V, V
IN2
= +10V, V
IN3
to V
IN6
= +2.7V to +5.5V, AUXIN_ = GPI_ = GND, MARGIN = MR = DBP, T
A
= -40°Cto
+85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 1 and 2)
(219 stránky)
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