MIC2774
Micrel
Absolute Maximum Ratings
(Note 1)
Supply Voltage (V
DD
).......................................–0.3V to +7V
Input Voltages (V
IN
, V
/MR
) ...............................–0.3V to +7V
Output Voltages (V
/RST
, V
RST
) .........................–0.3V to +7V
RST, (/RST) Current ................................................... 20mA
Storage Temperature (T
S
) ........................ –65°C to +150°C
ESD Rating,
Note 3
.................................................... 1.5kV
Operating Ratings
(Note 2)
Supply Voltage (V
DD
) .................................. +1.5V to +5.5V
Input Voltages (V
IN
, V
/MR
) ............................–0.3V to +6.0V
Output Voltages
V
/RST
(N version), ....................................–0.3V to +6.0V
V
/RST
, V
RST
(H and L versions).......... –0.3V to V
DD
+0.3V
Ambient Temperature Range (T
A
) .............. –40°C to +85°C
Package Thermal Resistance (θ
JA
) ....................... 256°C/W
Electrical Characteristics
Symbol
I
DD
Parameter
Condition
Supply Current
Note 5;
T
A
= +25°C,
bold
values indicate –40°C ≤ T
A
≤ +85°C; unless noted
;
V
DD
= V
IN
= V
TH
+1.6%,
Note 5;
/MR, RST, /RST open
5
Min
Typ
3.5
Max
Units
µA
VDD VOLTAGE THRESHOLD
Under-Voltage Threshold On V
DD
(See Standard Voltage Options Table)
V
HYST
V
REF
I
IN
Hysteresis Voltage
Under-Voltage Threshold
Hysteresis Voltage
Input Current
T
MIN
≤ T
A
≤ T
MAX
V
IN
= (V
REF(MAX)
+ 100mV) to
V
IN
= (V
REF(MIN)
– 100mV), /MR = open;
I
SINK
= 1.6mA;
V
DD
≥ 1.6V
T
MIN
≤ T
A
≤ T
MAX
Note 5
295
IN, UNDER-VOLTAGE DETECTOR INPUT
300
3
5
10
305
mV
mV
pA
nA
µs
280
0.3
0.3
0.8V
DD
0.8V
DD
ms
V
V
V
V
V
HYST
V
TH
–1.5%
V
TH
1
V
TH
+1.5%
V
%
RST, /RST OUTPUTS
t
PROP
t
RST
V
OL
Propagation Delay
Reset Pulse Width
RST or /RST Output Voltage Low
20
140
V
OH
RST or /RST Output Voltage High
(H and L Version Only)
I
SOURCE
= 500µA;
V
DD
≥ 1.5V
I
SINK
= 100µA;
V
DD
≥ 1.2V;
Note 4
/MR INPUTS
V
IH
V
IL
t
PROP
t
MIN
I
PU
I
IN
Input High Voltage
Input Low Voltage
Propagation Delay
Minimum Input Pulse Width
Internal Pull-up Current
Input Current, /MR
I
SOURCE
= 10µA;
V
DD
≥ 1.2V;
Note 4
Note 5
Note 5
V
/MR
< (V
IL
–100mV);
Note 5
Reset Occurs, V
/MR
< V
IL
0.7V
DD
5
33
100
100
V
0.3V
DD
V
µs
ns
250
250
nA
nA
V
IM
= 0V
V
/MR
< V
IL
Note 1.
Note 2.
Note 3.
Note 4.
Note 5.
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
V
DD
operating range is 1.5V to 5.5V. Output is guaranteed to be asserted down to V
DD
= 1.2V.
V
DD
equals nominal “Typical Application (V
DD
)” as shown in “Standard Voltage Options Table.”
October 2005
3
M9999-102605
MICREL [ MICREL SEMICONDUCTOR ]
