MAX8211 Maxim, MAX8211 Datasheet - Page 3

• Manufacturer Part Number: MAX8211
• Description: Microprocessor Voltage Monitors with Programmable Voltage Detection
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V+ = 5V, T
Note 1: The maximum output current of the MAX8211 is limited by design to 30mA under any operating condition. The output voltage
Note 2: The maximum output current of the MAX8212 is not defined, and systems using the MAX8212 must therefore ensure that the
As shown in the block diagrams of Figures 1 and 2, the
MAX8211 and MAX8212 each contain a 1.15V refer-
ence, a comparator, an open-drain N-channel output
transistor, and an open-drain P-channel hysteresis out-
put. The MAX8211 output N-channel turns on when the
voltage applied to the THRESH pin is less than the
internal reference (1.15V). The sink current is limited to
7mA (typical), allowing direct drive of an LED without a
series resistor. The MAX8212 output turns on when the
voltage applied to THRESH is greater than the internal
reference. It is not current limited, and will typically sink
35mA.
The CMOS MAX8211/MAX8212 are plug-in replacements
for the bipolar ICL8211/ICL8212 in most applications.
The use of CMOS technology has several advantages.
The quiescent supply current is much less than in the
bipolar parts. Higher-value resistors can also be used
_______________Detailed Description
Output Saturation Voltage
Maximum Available
Output Current
Hysteresis Leakage
Current
Hysteresis Saturation
Voltage
Maximum Available
Hysteresis Current
PARAMETER
may be sustained at any voltage up to +16.5V as long as the maximum power dissipation of the device is not exceeded.
output current does not exceed 50mA and that the maximum power dissipation of the device is not exceeded.
Compatibility with ICL8211/ICL8212
A
= +25°C, unless otherwise noted.)
________________________________________________________________________________________
with Programmable Voltage Detection
SYMBOL
(MAX)
(MAX)
I
V
V
LHYS
V
I
OH
HYS
HYS
OL
I
I
C temp. range,
V
T
V+ = 16.5V, V
V
T
V+ = 16.5V, V
V
I
measured with respect to V+
V
OUT
OUT
HYST
Microprocessor Voltage Monitors
A
A
OUT
HYST
HYST
TH
= T
= T
= 1.3V, V
= 2mA, V
= 2mA, V
= 5V
= 0.5mA, V
MIN
MIN
= -16.5V with respect to V+
= -16.5V with respect to V+
to T
to T
HYS
TH
TH
MAX
MAX
TH
TH
CONDITIONS
= 1.0V,
= 0.9V,
TH
= 1.0V
= 1.3V
= 0V
, C/E temp. ranges,
, M temp. range,
V
V
= 1.3V,
TH
TH
= 1.0V (Note 1)
= 1.3V (Note 2)
Figure 1. MAX8211 Block Diagram
THRESH
MIN TYP MAX
REFERENCE
4
2
1.15V
MAX8211
0.17
-0.1
7.0
10
-0.2
0.4
0.1
3
MIN TYP MAX
12
2
MAX8212
0.17
-0.1
V+
35
10
P
N
-0.2
0.4
0.1
HYST
OUT
3
UNITS
mA
mA
µA
V
V
3