Rainbow-electronics MAX1853 Manual de usuario descargar pdf (Pagina 2)

MAX1852/MAX1853

SC70 Inverting Charge Pumps

with Shutdown

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(Circuit of Figure 1, capacitors from Table 2, V

= +5V, SHDN = IN, T

= -40°C to +85°C, unless otherwise noted. Typical values are

at T

= +25°C.) (Note 1)

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.

IN to GND .................................................................-0.3V to +6V

C1+, SHDN to GND .....................................-0.3V to (V

+ 0.3V)

C1- to GND...............................................(V

OUT

- 0.3V) to +0.3V

OUT to GND .............................................................+0.3V to -6V

OUT Short-Circuit to GND ..............................................1 minute

Continuous Power Dissipation (T

= +70°C)

6-Pin SC70 (derate 3.1mW/°C above +70°C) .............245mW

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

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Note 1: All devices are 100% production tested at T

= +25°C. All temperature limits are guaranteed by design.

Note 2: Output resistance is guaranteed with capacitor ESR of 0.3Ω or less.

PARAMETER CONDITIONS MIN TYP MAX UNITS

Supply Voltage Range 2.5 5.5 V

= +25°C 75 130

MAX1852

= -40°C to +85°C 150

= +25°C 165 320

Quiescent Supply Current

MAX1853

= -40°C to +85°C 350

µA

= +25°C 0.002 0.5

Shutdown Supply Current SHDN = GND

= +85°C 0.01

µA

= +25°C 325068

MAX1852

= -40°C to +85°C2578

= +25°C 130 200 270

Oscillator Frequency

MAX1853

= -40°C to +85°C 110 310

kHz

Voltage Conversion Efficiency I

OUT

= 0 99 99.9 %

= +25°C1530

Output Resistance (Note 2) I

OUT

= 10mA

= -40°C to +85°C40

Ω

Output Current Continuous, long-term 30 mA

RMS

SHDN Input Logic High +2.5V ≤ V

≤ +5.5V 0.7 × V

SHDN Input Logic Low +2.5V ≤ V

≤ +5.5V 0.3 × V

= +25°C -100 1 100

SHDN Bias Current SHDN = GND or IN

= +85°C10

MAX1852 260

Wake-Up Time From Shutdown I

OUT

= 5mA

MAX1853 112

µs

1 2 3 4 5 6 7 8

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Rainbow-electronics MAX1853 Manual de usuario Pagina 2

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