MAX6845 Maxim Integrated Products, MAX6845 Datasheet - Page 2

• Manufacturer Part Number: MAX6845
• Description: (MAX6841 - MAX6845) Ultra-Low-Voltage uP Reset Circuits and Voltage Detectors
• Manufacturer: Maxim Integrated Products

ABSOLUTE MAXIMUM RATINGS
Terminal Voltage (with respect to GND)
MR, RESET IN, RESET (open-drain).........................-0.3V to +6V
Push-Pull RESET and RESET .....................-0.3V to (V
Input Current (all pins) ........................................................20mA
Output Current (RESET, RESET).........................................20mA
Ultra-Low-Voltage µP Reset Circuits and
Voltage Detectors
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.
ELECTRICAL CHARACTERISTICS
(V
2
Supply Voltage Range
Supply Current
Reset Threshold
(V
RESET IN Threshold
RESET IN Leakage Current
Reset Threshold Hysteresis
V
Reset Active Timeout Period
MR Input Voltage (Note 3)
MR Minimum Input Pulse Width
MR Glitch Rejection
MR to Reset Delay
MR Pullup Resistance to V
www.DataSheet4U.com
CC
V
CC
CC
CC
_______________________________________________________________________________________
= +0.55V to +1.8V, T
or RESET IN to Reset Delay
Falling)
.......................................................................-0.3V to +6V
PARAMETER
A
CC
= -40°C to +85°C, unless otherwise noted. Typical values are at T
SYMBOL
V
I
V
RSTIN
V
RSTIN
V
I
t
V
V
CC
HYS
RP
CC
TH
IH
IL
MAX6843/MAX6845
MAX6841/MAX6842/MAX6844 (Note 2)
V
V
V
MAX6843/MAX6844/MAX6845 (Note 3)
V
to (V
D0 (voltage detector)
D1
D2
D3
D4
MR driven from V
MR driven from V
MR driven from V
I
H
G
F
E
D, T
CC
CC
CC
CC
CC
A
TH
= 0.9V, no load, reset not asserted
= 1.5V, no load, reset not asserted
= 1.8V, no load, reset not asserted
falling, step signal from (V
+ 0.3V)
= 0°C to +85°C
- 10%) within 1µs
CONDITIONS
CC
CC
CC
Continuous Power Dissipation (T
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
to 0 (Note 3)
to 0 (Note 3)
to 0 (Note 3)
5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW
TH
+ 10%)
A
0.7 × V
= +25°C.) (Note 1)
1.350
1.275
1.080
1.020
0.810
0.765
181.2
1120
MIN
0.55
0.75
140
-25
20
10
1
1
A
CC
= +70°C)
1.388
1.313
1.110
1.050
0.833
0.788
187.4
1680
TYP
0.75
0.15
150
210
150
500
5.7
7.3
8.1
1.5
30
20
0.3 × V
1.425
1.350
1.140
1.080
0.855
0.810
191.5
MAX
2240
1.80
1.80
+25
280
20
20
20
40
26
2
CC
%V
UNITS
mV
ms
µA
nA
kΩ
µs
µs
ns
ns
V
V
V
TH