Electrical characteristics (continued) – Rainbow Electronics MAX6871 User Manual
Page 4
MAX6870/MAX6871
EEPROM-Programmable Hex/Quad
Power-Supply Sequencers/Supervisors with ADC
4
_______________________________________________________________________________________
PARAMETER
SYM B O L
CONDITIONS
MIN
TYP
MAX
UNITS
V
IL
0.8
MR, MARGIN, GPI_ Input Voltage
V
IH
1.4
V
MR Input Pulse Width
t
MR
1
µs
MR Glitch Rejection
100
ns
MR to PO_ Delay
t
DMR
2
µs
MR to V
DBP
Pullup Current
I
MR
V
MR
= +1.4V
5
10
15
µA
MARGIN to V
DBP
Pullup Current
I
MARGIN
V
MARGIN
= +1.4V
5
10
15
µA
GPI_ to PO_ Delay
t
DGPI_
200
ns
GPI_ Pulldown Current
I
GPI_
V
GPI_
= +0.8V
5
10
15
µA
Watchdog Input Pulse Width
t
WDI
GPI_ configured as a watchdog input
50
ns
000
5.625
6.25
6.875
001
22.5
25
27.5
010
90
100
110
011
360
400
440
ms
100
1.44
1.60
1.76
101
5.76
6.40
7.04
110
23.04
25.60
28.16
Watchdog Timeout Period
t
WD
Register Contents
(Table 28)
111
92.16
102.40
112.64
s
Reference Input Voltage Range
V
REFIN
1.225
1.25
1.275
V
Reference Input Resistance
R
REFIN
V
REFIN
= +1.25V
500
k
Ω
IN1, LSB = 18.3mV
0
13.2
IN1, LSB = 9.16mV
0
9.366
IN2, LSB = 18.3mV
0
±15.25
IN2, LSB = 9.16mV
0
±9.366
IN3 to IN6, LSB = 7.32mV
0
5.50
IN3 to IN6, LSB = 3.66mV
0
3.746
ADC Range
AUXIN_, LSB = 1.2mV
0
1.249
V
IN1 to IN6 positive
±1.0
Internal Reference
IN2 negative
±1.0
ADC Total Unadjusted Error
(Note 5)
TUE
E xter nal Refer ence, IN 1 to IN 6 p osi ti ve ( N ote 6)
±1.0
%FSR
ADC Differential Nonlinearity
DNL
(Note 7)
±1
LSB
ADC Total Monitoring Cycle Time
t
C
Monitors all 8 inputs
200
266
ms
AUXIN_ Input Leakage Current
I
LAUXIN_
V
AUXIN_
= 1.25V
-1
+1
µA
SERIAL INTERFACE LOGIC (SDA, SCL, A0, A1)
Logic Input Low Voltage
V
IL
0.8
V
Logic Input High Voltage
V
IH
2.0
V
Input Leakage Current
I
LKG
-1
+1
µA
Output Voltage Low
V
OL
I
SINK
= 3mA
0.4
V
Input/Output Capacitance
C
I/O
10
pF
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°C to
+85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 1 and 2)