Datasheet

MAX6886
Pin-Selectable, Hex Power-Supply
Supervisory Circuit
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN1
–V
IN4
or V
CC
= 2.7V to 5.8V, WDI = GND, TH0–TH4 = MARGIN = MR = DBP, T
A
= -40°C to +85°C, unless otherwise noted.
Typical values are at T
A
= +25°C.) (Notes 1, 2)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
(All voltages referenced to GND.)
IN1–IN6, V
CC
, RESET, SRT, SWT.............................-0.3V to +6V
TH0–TH4, WDI, MR, MARGIN ..................................-0.3V to +6V
DBP ..........................................................................-0.3V to +3V
Input/Output Current (all pins)..........................................±20mA
Continuous Power Dissipation (T
A
= +70°C)
20-Pin 5mm x 5mm Thin QFN
(derate 21.3mW/°C above +70°C).............................1702mW
Maximum Junction Temperature .....................................+150°C
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
Operating Voltage Range
(Note 3)
Voltage on either one of IN1–IN4 or V
CC
to
guarantee the part is fully operational
2.7 5.8 V
Supply Current I
CC
V
IN1
= 5.8V, IN2–IN6 = GND, no load 0.9 1.2 mA
Digital Bypass Voltage V
DBP
2.48 2.55 2.67
V
T
A
= +25
o
C to +85
o
C
-1 +1
Threshold Accuracy (Table 2) V
TH
IN1–IN6, V
IN
_ falling
T
A
= -40
o
C to +85
o
C -1.5 +1.5
% V
TH
Threshold Hysteresis
V
TH-HYS
0.3
% V
TH
Threshold Tempco
∆V
TH
/°C
10
ppm/°C
IN_ Input Impedance R
IN
For V
IN_
< highest V
IN1–IN4
and V
IN_
< V
CC
(not ADJ), thresholds are not set as
adjustable
130 200 300
kΩ
IN5, IN6
IN_ Input Leakage Current I
IN
IN1–IN4 set as ad
j
ustable thresholds
-150 +150
nA
Power-Up Delay t
D-PO
V
CC
≥ 2.5V 2.5 ms
IN_ to RESET Delay t
D-R
IN_ falling/rising, 100mV overdrive 20 µs
Reset Default Timeout Period t
RP
V
SRT
= V
CC
180 200 220
ms
Reset Adjustable Timeout Period
t
RP-ADJ
C
SRT
= 47nF
135 207 280
ms
SRT Adjustable Timeout Current I
SRT
V
SRT
= V
GND
180 230 280
nA
SRT Default Timeout Threshold
V
SRT-DEF
V
SRT
≥ V
SRT-DEF
, selects reset default
1.1
1.25
1.5 V
SRT Adjustable Timeout
Threshold
V
SRT-ADJ
(Note 4)
0.95 1.00 1.05
V
SRT Adjustable Timeout
Discharge Threshold
V
SRT-DIS
(Note 5)
100
mV
SRT Adjustable Timeout Output-
Low Discharge Current
I
SRT-DIS
V
SRT
= 0.3V 0.7 mA
RESET Output Low
V
OLRESET
I
SINK
= 4mA, output asserted 0.4 V
RESET Output Open-Drain
Leakage Current
I
LKG
Output tri-stated -1 +1 µA