AIC1648 Ver la hoja de datos (PDF) - Analog Intergrations

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AIC1648

Built-in OVP White LED Step-Up Converter

Analog Intergrations 

AIC1648

ELECTRICAL CHARACTERISTICS

(VSHDN=3V, VIN=3V, TA=25°C, unless otherwise specified.) (Note 1)

PARAMETER

SYMBOL TEST CONDITIONS

MIN TYP MAX UNIT

Minimum Operating Voltage

VIN

2.5

V

Maximum Operating Voltage

VIN

5.5

V

Switching

1

5

mA

Supply Current

IIN Non switching

V SHDN= 0V

70 100

µA

0.1 1.0

ERROR AMPLIFIER

Feedback Voltage

VFB

85

95 105 mV

FB Input Bias Current

IFB VFB=95mV

1

nA

OSCILLATOR

Switching Frequency

fOSC

0.8 1.2 1.6 MHz

Maximum Duty Cycle

DC

85

90

%

POWER SWITCH

SW ON Resistance

RDS(ON)

1.4

5

Ω

Switch Leakage Current

ISW(OFF) VSW=33V

0.1

1

µA

CONTROL INPUT

SHDN Voltage High

VIH ON

1.5

V

SHDN Voltage Low

VIL OFF

0.3

V

OVER VOLTAGE PROTECTION

OVP Input Resistance

ROVP

0.6 1.2 1.8 MΩ

OVP Threshold

VOVP 1V Hysteresis typical

22

27

32

V

Note 1: Specifications are production tested at TA=25°C. Specifications over the -40°C to 85°C operating

temperature range are assured by design, characterization and correlation with Statistical Quality

Controls (SQC).

3

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