Rainbow-electronics MAX1701 Manual de usuario descargar pdf (Pagina 4)

MAX1700/MAX1701

1-Cell to 3-Cell, High-Power (1A),

Low-Noise, Step-Up DC-DC Converters

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(CLK/SEL = ONA = ONB = FB = PGND = GND, OUT = POUT, V

OUT

= 3.6V (Note 6); MAX1701: AIN = LBN = GND, LBP = REF,

= -40°C to +85°C, unless otherwise noted.) (Note 8)

LBP falling, 15mV hysteresis

Rising V

Adjustable output, CLK/SEL = OUT, V

BATT

= 2.4V,

includes load regulation error for 0A ≤ I

≤ 0.55A

10µA < I

< 100µA

= 20µA

< 0.1V, CLK/SEL = OUT, V

BATT

= 2.4V, includes load

regulation error for 0A ≤ I

≤ 0.55A

CLK/SEL = OUT

Rising V

OUT

, V

< 0.1V

P-channel

N-channel

(Note 4)

ONB

= 3.6V

CLK/SEL = GND (MAX1700)

2.92 3.03

CLK/SEL = OUT (MAX1700)

Internal Trip Level

CONDITIONS

mV-5 5LBN, LBP Input Offset

V1.1 1.14External Trip Level

mmho516Transconductance

V1.23 1.27

To maintain input offset < ±5mV (at least one input must

be within this range)

AIN Reference Voltage

250 600

N-Channel Current Limit

1100 1800

V0.5 1.5

LBN, LBP Common Mode

Range

REF

= 0 V1.23 1.27Reference Output Voltage

V1.20 1.27FB Regulation Voltage

V3.17 3.38Output Voltage (Note 3)

Ω

0.5

Switch On-Resistance

0.28

0.45

V2.0 2.3

Output Voltage Lockout

Threshold

µA20Supply Current in Shutdown

µA

Supply Current in Low-Power

Mode (Note 6)

µA

250

Supply Current in Low-Noise

Mode (Note 6)

UNITSMIN TYP MAXPARAMETER

CLK/SEL = GND (MAX1701)

CLK/SEL = OUT (MAX1701)

CLK/SEL = GND

CLK/SEL = OUT

CLK/SEL = GND

110

300

DC-DC CONVERTER

DC-DC SWITCHES

GAIN BLOCK (MAX1701)

POWER-GOOD (MAX1701)

LOW-BATTERY COMPARATOR (MAX1701)

REFERENCE

1 2 3 4 5 6 7 8 9 ... 15 16

MAX1700/MAX1701 1

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Rainbow-electronics MAX1701 Manual de usuario Pagina 4

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