MIC2777_05 Datasheet, PDF (3/8 Pages) Micrel Semiconductor – Dual Micro-Power Low Voltage Supervisor

MIC2777
Absolute Maximum Ratings (Note 1)
Supply Voltage (V_DD).......................................–0.3V to +7V
Input Voltage (V_IN) ...........................................–0.3V to +7V
RST, (/RST) Current ................................................... 20mA
Storage Temperature (T_S) ........................ –65°C to +150°C
ESD Rating, Note 3.................................................... 1.5kV
Micrel, Inc.
Operating Ratings (Note 2)
Supply Voltage (V_DD) .................................. +1.5V to +5.5V
Input Voltage
(V_IN) .............................................................–0.3V to +6.0V
Ambient Temperature Range (T_A) .............. –40°C to +85°C
Package Thermal Resistance (θ_JA) ....................... 256°C/W
Electrical Characteristics
Note 5; T_A = +25°C, bold values indicate –40°C ≤ T_A ≤ +85°C; unless noted
Symbol
Parameter
Condition
Min Typ Max Units
I_DD
Supply Current
V_DD = V_IN
Note 5; /MR, RST, /RST open
3.5
µA
VDD VOLTAGE THRESHOLD
Under-Voltage Threshold On V_DD
V_HYST
Hysteresis Voltage
IN, UNDER-VOLTAGE DECTECTOR INPUT
V_TH-1.5% V_TH V_TH+1.5% V
1
%
V_REF
V_HYST
I_IN
Under-Voltage Threshold
Hysteresis Voltage
Input Current
RST, /RST OUTPUTS
T_MIN ≤ T_A ≤ T_MAX
295 300 305 mV
3
mV
5
pA
10
nA
t_PROP
t_RST
V_OL
V_OH
Propagation Delay
Reset Pulse Width
V_IN = (V_REF(MAX) + 100mV) to
20
µs
V_IN = (V_REF(MIN) – 100mV) or
V_DD = (V_TH + 2.5%) to (V_TH – 2.5%), V_IN =V_DD
140
280 ms
RST or /RST Output Voltage Low
RST or /RST Output Voltage High
I_SINK = 1.6mA;
V_DD ≥ 1.6V
I_SINK = 100µA;
V_DD ≥ 1.2V, Note 4
I_SOURCE = 500µA;
V_DD ≥ 1.5V
RST asserted, I_SOURCE = 10µA;
V_DD ≥ 1.2V, Note 4
0.8V_DD
0.8V_DD
0.3
V
0.3
V
V
V
Note 1. Exceeding the absolute maximum rating may damage the device.
Note 2. The device is not guaranteed to function outside its operating rating.
Note 3.
Note 4.
Note 5.
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 the nominal “Typical Application (V_DD)” as shown in “Standard Voltage Options Table.”
November 2005
3
MIC2777