Datasheet

MAX6887/MAX6888
Hex/Quad, Power-Supply Supervisory Circuits
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN1
–V
IN4
or V
CC
= 2.7V to 5.8V, WDI = GND, MARGIN = MR = BP, 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, OV, WDO .............................-0.3V to +6V
WDI, MR, MARGIN ...................................................-0.3V to +6V
BP .............................................................................-0.3V to +3V
Input/Output Current (all pins)..........................................±20mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin 5mm x 5mm Thin QFN
(derate 20.8mW/°C above +70°C)..............................1667mW
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
IN1–IN6, IN_ falling, T
A
= +25°C to +85°C -1 +1
Threshold Accuracy
(See the Selector Guide)
V
TH
IN1–IN6, IN_ falling, T
A
= -40°C to +85°C
-1.5 +1.5
% V
TH
Threshold Hysteresis
V
TH-HYST
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 (MAX6887 only)
IN_ Input Leakage Current I
IN
IN1–IN4 set as adjustable thresholds
-150 +150
nA
Power-Up Delay t
D-PO
V
CC
≥ 2.5V 2.5 ms
IN_ to RESET or OV Delay t
D-R
IN_ falling/rising, 100mV overdrive 20 µs
RESET Timeout Period t
RP
180 200 220
ms
OV Timeout Period t
OP
25 µs
RESET, OV, and WDO Output
Low
V
OL
I
SINK
= 4mA, output asserted 0.4 V
RESET, OV, and WDO Output
Open-Drain Leakage Current
I
LKG
Output high impedance -1 +1 µA