MAX1822ESA datasheet(2/10 Pages) MAXIM

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High-Side Power Supply

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VCC = +5V, TA = TMIN to TMAX, unless otherwise noted.)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

Note 1: High-side voltage measured with respect to ground.

Note 2: For VCC > +13V on the MAX1822, use C1 = C2 = 0.01µF.

Note 3: Power-Ready Threshold is the voltage with respect to ground at VOUT when PR switches high (PR = VCC).

VCC ......................................................................................+17V

VOUT ....................................................................................+30V

IOUT ...................……………………………………………….25mA

Continuous Total Power Dissipation (TA = +70°C)

8-pin SO (derate 5.88mW/°C above +70°C)...............471mW

Operating Temperature Range ...........................-40°C to +85°C

Storage Temperature Range .............................-65°C to +160°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage

VCC

3.5

16.5

IOUT = 0, VCC = 3.5V,

C1 = C2 = 0.047µF, C3 = 1µF

11.5

12.5

16.5

IOUT = 0, VCC = 4.5V, C1 = C2 = 0.047µF,

C3 = 1µF

14.5

15.5

17.5

IOUT = 0, VCC = 16.5V, C1 = C2 = 0.01µF,

C3 = 1µF (Note 2)

26.5

27.5

29.5

IOUT = 50µA, VCC = 3.5V,

C1 = C2 = 0.047µF, C3 = 1µF

8.5

10.5

16.5

IOUT = 250µA, VCC = 5V,

C1 = C2 = 0.047µF, C3 = 1µF

High-Side Voltage (Note 1)

VOUT

IOUT = 500µA, VCC = 16.5V,

C1 = C2 = 0.01µF, C3 = 1µF (Note 2)

26.5

29.5

Power-Ready Threshold

PRT

IOUT = 0 (Note 3)

13.5

14.5

Power-Ready Output High

PROH

ISOURCE = 100µA

3.8

4.3

Power-Ready Output Low

PROL

ISINK = 1mA

0.4

Output Voltage Ripple

C1 = C2 = 0.01µF, C3 = 10µF,

IOUT = 1mA, VCC = 16.5V

Switching Frequency

kHz

IOUT = 0, VCC = 5V, C1 = C2 = 0.047µF,

C3 = 1µF, TA = +25

°C

150

500

Quiescent Supply Current

IOUT = 0, VCC = 16.5V, C1 = C2 = 0.047µF,

C3 = 1µF, TA = +25

°C

150

350

µA

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