MIC4834 datasheet(3/12 Pages) MICREL

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Micrel

MIC4834

October 2008

M9999-100908-A

Absolute Maximum Rating(1)

Supply voltage (VDD) ....................................... -0.5V to 6.5V

Output voltage (VCS)...................................... -0.5V to 130V

Switch Node (VSW) ......................................... -0.5V to 130V

Enable Voltage (VRSW, VENA, VENB)................... -0.5V to 6.5V

Ambient Storage Temperature (TS) ...........-65ºC to +150ºC

ESD Rating

(3) ........................................................................... ESD Sensitive

Operating Range(2)

Supply Voltage (VDD) ........................................2.3V to 5.8V

Switching MOSFET Frequency (fSW) ........ 35kHz to 350kHz

Enable Voltage (VRSW, VENA,, VENB) ....................... 0V to VDD

Junction Temperature Range (TJ) ............. -40°C to +125°C

Package Thermal Impedance

3mm x 3mm MLF

® (θJA)……………………........ 60°C/W

MSOP (

θJA)……………………......................... 206°C/W

Electrical Characteristics(4)

TA = 25

oC, VDD= 3.0V unless otherwise noted. Bold values indicate -40°C ≤ TJ ≤ 85°C.

Symbol

Parameter

Condition

Min

Typ

Max

Units

VDD

Supply Voltage Range

2.3

5.8

IDD

Input Supply Current

VRSW = High; VCS = 105V;

ELA, ELB, COM = Open

152

220

µA

ISD

Shutdown Current

VRSW = Low; VDD = 5.8V

0.1

µA

RDS(ON)

On-resistance Of Switching Transistor

ISW = 100mA, VCS = 105V

6.0

12.0

Ω

VCS

Output voltage Regulation

VDD = 2.3V to 5.8v

109

120

VDD = 3.0V

(RSW = 1.3MΩ )

kHz

VDD = 3.0V

(RSW = 450kΩ)

100

125

kHz

fSw

Boost Switching Frequency

VDD = 3.0V

(RSW = 125kΩ)

250

350

450

kHz

fEL

ELA, ELB and COM Drive Frequency

VDD = 3.0V

ELA, ELB, COM = Open

165

225

285

Switching Transistor Duty Cycle

IOUT

Output Current Drive Limit

2.5

7.5

VENA,

VENB

Enable Logic Threshold

0.4

1.2

VHYS

Enable Logic Hysteresis

150

IENA,

IENB

Enable Input Current

0.1

µA

Notes:

1. Exceeding the absolute maximum rating may damage the device.

2. The device is not guaranteed to function outside its operating rating.

3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.

4. Specification for packaged product only.

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