MIC4832 datasheet(3/22 Pages) MICROCHIP

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DS20006163B-page 3

MIC4832

1.0

ELECTRICAL CHARACTERISTICS

Absolute Maximum Ratings †

Supply Voltage (VDD) ................................................................................................................................... –0.5V to +6V

Output Voltage (VCS) ............................................................................................................................... –0.5V to +120V

EL Lamp Terminals (VA, VB) .............................................................................................................................. VCS + 3V

Switch Voltage (VSW)............................................................................................................................... –0.5V to +120V

Frequency Control Voltage (VRSW, VREL)...................................................................................... –0.5V to (VDD + 0.3V)

ESD Rating (Note 1) .................................................................................................................................................. 2 kV

Operating Ratings ††

Supply Voltage (VDD) ................................................................................................................................ +1.8V to +5.5V

Lamp Drive Frequency (fEL).................................................................................................................. 60 Hz to 1000 Hz

Switching Frequency (fSW)...................................................................................................................65 kHz to 250 kHz

† Notice: Exceeding the absolute maximum ratings may damage the device.

†† Notice: The device is not guaranteed to function outside its operating ratings.

Note 1: Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5 kΩ in series with

100 pF.

ELECTRICAL CHARACTERISTICS

Electrical Characteristics: VIN = VDD = 3.0V, RSW = 338 kΩ, REL = 1.78 MΩ. TA = +25°C unless otherwise

specified.

Bold values valid for –40°C ≤ TA ≤ +85°C. Note 1

Parameter

Sym.

Min.

Typ.

Max.

Units

Conditions

On-Resistance

RDS(ON)

—

3.8

ISW = 100 mA

CS Voltage Variation

VCS

105

119

—

Enable Input Low Voltage

(Turn-Off)

VEN-L

—

0.5

VDD = 1.8V to 5.5V

Enable Input High Voltage

(Turn-On)

VEN-H

VDD –

0.5

—

VDD = 1.8V to 5.5V

Shutdown Current

ISD

—

0.01

0.5

µA

RSW Resistor = Low;

REL Resistor = Low; VDD = 5.5V

Input Supply Current

IVDD

—

µA

RSW Resistor = High;

REL Resistor = High;

VCS = 110V; VA, VB = OPEN

Input Current Including

Inductor

ICS

—

VIN = VDD = 3.2V; RSW = 338 kΩ,

REL = 1.78 MΩ;

L = 220 µH; ROUT = 10 kΩ; Lamp = 2 in2

VA – VB Output Drive

Frequency

fEL

158

200

242

REL = 1.78 MΩ

Switching Transistor

Frequency

fSW

112

134

kHz

RSW = 338 kΩ

Switching Transistor Duty

Cycle

—

Note 1: Specification for packaged product only.

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