lm4651 National Semiconductor Corporation, lm4651 Datasheet - Page 3

• Manufacturer Part Number: lm4651
• Description: Overture? Audio Power Amplifier 170w Class D Audio Power Amplifier Solution
• Manufacturer: National Semiconductor Corporation

I
Standby
V
V
f
f
T
T
V
I
VGS
R
t
t
I
CQ
SW
SWerror
DSS
r
f
D
Symbol
dead
OverMod
Symbol
The following specifications apply for +V
T
IL
IH
The following specifications apply for +V
specific circuit values, refer to Figure 1 (Typical Audio Application Circuit).
(BR)
DS(ON)
Electrical Characteristics for LM4651
Electrical Characteristics for LM4652
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
Note 5: Machine Model, 220pF-240pF discharge through all pins.
Note 6: The operating junction temperature maximum, T
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.
A
th
= 25˚C. For specific circuit values, refer to Figure 1 (Typical Audio Application Circuit).
DSS
JA
= 62 ˚C/W (junction to ambient), while the LM4652 must be de−rated based on a 150˚C maximum junction temperature and a thermal resistance of
Total Quiescent Current
Standby Low Input Voltage
Standby High Input Voltage
Switching Frequency Range
50% Duty Cycle Error
Dead Time
Over Modulation Protection Time
Drain−to−Source Breakdown
Voltage
Drain−to−Source Leakage Current
Gate Threshold Voltage
Static Drain−to−Source On
Resistance
Rise Time
Fall Time
Maximum Saturation Drain
Current
Parameter
Parameter
CC
CC
= +20V, −V
= +20V, −V
jmax
LM4652 not connected, I
|I
Not in Standby Mode
In Standby Mode
R
R
R
R
Pulse Width Measured at 50%
VGS = 0
VDS = 44V
VDS = VGS, ID = 1mA
VGS = 6V
VGD = 6V
VGD = 6V
VGS = 6V
= 0
= 0
is 150˚C.
VCC+
OSC
OSC
OSC
DLY
resistor.
= 0
| + |I
= 15k
= 0
= 4k , f
EE
EE
= −20V, f
= −20V, unless otherwise specified. Limits apply for T
VEE−
DC
DC
DC
DC
DC
, ID = 6A
, VDS = 10V
Conditions
Conditions
, VDS = 40V
, VDS = 40V
, VGS = 0V
SW
(Notes 1, 2, 7)
(Notes 1, 2, 7)
|, R
3
= 125kHz
DLY
JC
SW
= 1.0˚C/W (junction to case) for the non-isolated package (T).
DC
= 0
= 125kHz, unless otherwise specified. Limits apply for
DC
O
DC
DC
DC
= 0mA,
, R
, R
GATE
GATE
CS
Min
Min
2.5
15
8
(case to sink) is increased, but the heat sink
Typical
Typical
0.85
200
310
200
2.0
1.0
36
65
27
55
25
26
10
1
LM4651
LM4652
A
Max
Max
300
0.8
45
3
= 25˚C. For
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Units
Units
A
kHz
kHz
m
mA
mA
JC
ns
ns
ns
ns
%
V
V
V
V
DC
=