MIC2790 查看數據表（PDF） - Micrel
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MIC2790 Datasheet PDF : 18 Pages
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Micrel, Inc.
MIC2790/1/3
Absolute Maximum Ratings(4)
Supply Voltage (VDD) .................................... 0.3V to +6.0V
SNS ................................................................ 0.3V to 4.5V
/MR, EN, CTH .................................................... 0.3V to VDD
RESET, /RESET .............................................. 0.3V to VDD
Lead Temperature (soldering, 10s)............................ 260°C
Storage Temperature (TS)......................... 55°C to +150°C
ESD Ratings(6) ............................................... ESD Sensitive
Operating Ratings(5)
Supply Voltage (VDD) .................................... +1.5V to +5.5V
SNS ..................................................................... 0V to 4.0V
/MR, EN, CTH ......................................................... 0V to VDD
RESET, /RESET ................................................... 0V to VDD
Junction Temperature (TJ) ........................ 40°C to +125°C
Junction Thermal Resistance
6-pin, TSOT-23 (JA).....................................177.2°C/W
6-pin, 1.6mm × 1.6mm TDFN (JA).................92.4°C/W
6-pin, 2mm × 2mm TDFN (JA) ..........................90°C/W
8-pin, 2mm × 2mm TDFN (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
/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 Specifications
VTH
VHYST
Sense Threshold Voltage
Sense Threshold Accuracy
Hysteresis
Sense rising
0.4
V
1.0
+1.0
%
2.5
1.5 +2.5
%
ISNS
Sense Input Bias Current
RESET & /RESET Output Specifications
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.
May 22, 2014
4
Revision 1.2
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