MIC2790 Datasheet, PDF (4/18 Pages) Micrel Semiconductor – Supervisor with High-Accuracy, Ultra-Fast Propagation Delay, and Capacitor-Programmable Reset Delay

Micrel, Inc.
MIC2790/1/3
Absolute Maximum Ratings⁽⁴⁾
Supply Voltage (V_DD) .................................... −0.3V to +6.0V
SNS ................................................................ −0.3V to 4.5V
/MR, EN, C_TH .................................................... −0.3V to V_DD
RESET, /RESET .............................................. −0.3V to V_DD
Lead Temperature (soldering, 10s)............................ 260°C
Storage Temperature (T_S)......................... −55°C to +150°C
ESD Ratings⁽⁶⁾ ............................................... ESD Sensitive
Operating Ratings⁽⁵⁾
Supply Voltage (V_DD).................................... +1.5V to +5.5V
SNS ..................................................................... 0V to 4.0V
/MR, EN, C_TH ......................................................... 0V to V_DD
RESET, /RESET ................................................... 0V to V_DD
Junction Temperature (T_J) ........................ −40°C to +125°C
Junction Thermal Resistance
6-pin, TSOT-23 (θ_JA).....................................177.2°C/W
6-pin, 1.6mm × 1.6mm TDFN (θ_JA).................92.4°C/W
6-pin, 2mm × 2mm TDFN (θ_JA) .......................... 90°C/W
8-pin, 2mm × 2mm TDFN (θ_JA) .......................... 90°C/W
Electrical Characteristics⁽⁷⁾
VDD = 3.3V; R/RESET = 100kΩ; CTH = 1nF; TA = 25°C, bold values indicate −40°C ≤ TA ≤ +125°C, unless noted.
Symbol Parameter
Condition
Min.
Typ.
Max. Units
Supply Specifications
VDD
Supply Voltage
IDD
Supply Current
Sense Specifications
/RESET Output Valid
VDD = EN = /MR = 3.3V
RESET and /RESET not asserted
VDD = EN = /MR = 5V
RESET and /RESET not asserted
1.5
5.5
V
40
70
µA
50
80
Sense Threshold Voltage
VTH
Sense Threshold Accuracy
VHYST
Hysteresis
Sense rising
ISNS
Sense Input Bias Current
RESET & /RESET Output Specifications
0.4
V
−1.0
+1.0
%
−2.5
± 1.5 +2.5
%
−15
+15
nA
tp,SNS
SNS to RESET and /RESET
Propagation Delay⁽⁸⁾
SNS = VTH × 1.05 to VTH × 0.95
1
2.2
µs
VOL
/RESET Logic Low Output
Voltage
IOL = 1mA (open-drain only)
0.3
V
VOH
RESET Logic High Output
Voltage
IOH ≤ 1mA (push-pull only)
>0.9 × VDD
V
IOH
/RESET Leakage Current
/RESET not asserted (open-drain only)
1
µA
td
RESET and /RESET
Timeout Delay
CTH = 100pF
CTH = 180nF
0.45
1.05
1.8
ms
0.5
1.2
1.9
s
Notes:
4. Exceeding the absolute maximum ratings may damage the device.
5. The device is not guaranteed to function outside its operating ratings.
6. Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5kΩ in series with 100pF.
7. Specification for packaged product only.
8. SNS to RESET and or /RESET propagation delay is the delay time for SNS voltage to transition from VTH × 1.05 to VTH × 0.95 to RESET and or
/RESET.
August 23, 2013
4
Revision 1.0