MIC2776 datasheet(3/8 Pages) MICREL

3 / 8 page

November 2005

MIC2776

Micrel, Inc.

Absolute Maximum Ratings (Note 1)

Supply Voltage (VDD).......................................–0.3V to +7V

Input Voltages (VIN, V/MR) ...............................–0.3V to +7V

RST, (/RST) Current .................................................. 20mA

Storage Temperature (TS) ........................ –65°C to +150°C

ESD Rating,

Note 3.................................................... 1.5kV

Operating Ratings (Note 2)

Supply Voltage (VDD) .................................. +1.5V to +5.5V

Input Voltages (VIN, V/MR) ............................–0.3V to +6.0V

Output Voltages

V/RST (N version) ......................................–0.3V to +6.0V

V/RST, VRST (H and L versions)........ –0.3V to VDD + 0.3V

Ambient Temperature Range (TA) .............. –40°C to +85°C

Package Thermal Resistance (θJA).......................256°C/W

Electrical Characteristics

VDD = 3.3V; TA = +25°C, bold values indicate –40°C ≤ TA ≤ +85°C; unless noted

Symbol

Parameter

Condition

Min

Typ

Max

Units

IDD

Supply Current

VDD = VIN = 3.3V; /MR, RST, /RST open

3.0

µA

IN, UNDER-VOLTAGE DETECTOR INPUT

VREF

Under-Voltage Threshold

TA = 25°C

295

300

305

VHYST

Hysteresis Voltage

IIN

Input Current

TMIN ≤ TA ≤ TMAX

RESET OUTPUTS (/RST, RST)

tPROP

Propagation Delay

VIN = (VREF(MAX) + 100mV) to

µs

VIN = (VREF(MIN) – 100mV)

tRST

Reset Pulse Width

140

280

VOL

RST or /RST Output Voltage Low

ISINK = 1.6mA;

0.3

VDD ≥ 1.6V

ISINK = 100µA;

0.3

VDD ≥ 1.2V, Note 4

VOH

RST or /RST Output Voltage High

ISOURCE = 500µA;

0.8VDD

VDD ≥ 1.5V

(H and L Version Only)

ISOURCE = 10µA;

0.8VDD

VDD ≥ 1.2V, Note 4

MANUAL RESET INPUTS (/MR)

VIH

Input High Voltage

1.5V ≤ VDD ≤ 5.5V

0.7VDD

VIL

Input Low Voltage

1.5V ≤ VDD ≤ 5.5V

0.3VDD

tPROP

Propagation Delay

V/MR < VIL

µs

tMIN

Minimum Input Pulse Width

Reset Occurs, V/MR < VIL

IPU

Internal Pull-Up Current

100

IIN

Input Current, /MR

V/MR < VIL

100

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. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.

Note 4. VDD operating range is 1.5V to 5.5V. Output is guaranteed to be asserted down to VDD = 1.2V.

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