MIC2790 datasheet(4/18 Pages) MICREL

4 / 18 page

Micrel, Inc.

MIC2790/1/3

August 23, 2013

Revision 1.0

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 V

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 = 100k

Ω; 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

/RESET Output Valid

1.5

5.5

IDD

Supply Current

VDD = EN = /MR = 3.3V

RESET and /RESET not asserted

µA

VDD = EN = /MR = 5V

RESET and /RESET not asserted

Sense Specifications

VTH

Sense Threshold Voltage

0.4

Sense Threshold Accuracy

−1.0

+1.0

VHYST

Hysteresis

Sense rising

−2.5

± 1.5

+2.5

ISNS

Sense Input Bias Current

−15

+15

RESET & /RESET Output Specifications

tp,SNS

SNS to RESET and /RESET

Propagation Delay

(8)

SNS = VTH × 1.05 to VTH × 0.95

2.2

µs

VOL

/RESET Logic Low Output

Voltage

IOL = 1mA (open-drain only)

0.3

VOH

RESET Logic High Output

Voltage

IOH

≤ 1mA (push-pull only)

>0.9 × VDD

IOH

/RESET Leakage Current

/RESET not asserted (open-drain only)

µA

RESET and /RESET

Timeout Delay

CTH = 100pF

0.45

1.05

1.8

CTH = 180nF

0.5

1.2

1.9

Notes:

Exceeding the absolute maximum ratings may damage the device.

The device is not guaranteed to function outside its operating ratings.

Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5k

Ω in series with 100pF.

Specification for packaged product only.

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.

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