The following specifications apply for +V

T

Symbol

Parameter

Conditions

LM4651

Min

Typical

Max

Units

I

CQ

Total Quiescent Current

LM4652 not connected, I

|I

15

36

45

mA

Standby

V

IL

Standby Low Input Voltage

Not in Standby Mode

0.8

V

V

IH

Standby High Input Voltage

In Standby Mode

2.5

2.0

V

f

SW

Switching Frequency Range

R

65

kHz

R

200

kHz

f

SWerror

50% Duty Cycle Error

R

1

3

%

T

dead

Dead Time

R

27

ns

T

OverMod

Over Modulation Protection Time

Pulse Width Measured at 50%

310

ns

The following specifications apply for +V

specific circuit values, refer to Figure 1 (Typical Audio Application Circuit).

Symbol

Parameter

Conditions

LM4652

Min

Typical

Max

Units

V

Drain−to−Source Breakdown

Voltage

VGS = 0

55

V

I

DSS

Drain−to−Source Leakage Current

VDS = 44V

1.0

mA

VGS

th

Gate Threshold Voltage

VDS = VGS, ID = 1mA

DC

0.85

V

R

DS(ON)

Static Drain−to−Source On

Resistance

VGS=6V

200

300

m

Ω

t

r

Rise Time

VGD=6V

=0

Ω

25

ns

t

f

Fall Time

VGD=6V

=0

Ω

26

ns

I

D

Maximum Saturation Drain

Current

VGS=6V

810

A

DC

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is

functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which

guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit

is given, however, the typical value is a good indication of device performance.

Note 2: All voltages are measured with respect to the GND pin unless otherwise specified.

Note 3: For operating at case temperatures above 25˚C, the LM4651 must be de−rated based on a 150˚C maximum junction temperature and a thermal resistance

of

2.0 ˚C/W (junction to case) for the isolated package (TF) or a thermal resistance of

Note 4: Human body model, 100 pF discharged through a 1.5 k

Ω resistor.

Note 5: Machine Model, 220pF-240pF discharge through all pins.

Note 7: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).

Note 8: The LM4652TA package TA15A is a non-isolated package, setting the tab of the device and the heat sink at −V potential when the LM4652 is directly

mounted to the heat sink using only thermal compound. If a mica washer is used in addition to thermal compound,

will be isolated from −V.

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