Tai-1 Microelectronics
Preliminary
TMPA208DS
www.taimec.com.tw
/
www.class-d.com.tw
Rev.1.0
June 27, 2006
Copyright
©2005,Tai-1 Microelectronics Corp.
4
ABSOLUTE MAXIMUM RATINGS
Over operating free-air temperature range unless otherwise noted
(1)
Supply voltage range, VDD, PVDD
0.3V to 6V
Input voltage range, VI
0V to 5.5V
Continuous total power dissipation
See Dissipation Rating Table
Operating free-air temperature, TA
-20
C
。
to 85
C
。
Operating junction temperature range, TJ
-20
C
。
to 150
C
。
Storage temperature range, Tstg
-65
C
。
to 150
C
。
(1)Stresses beyond those listed under“absolute maximum ratings”may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under“recommended operating conditions”is not implied.
Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
DISSIPATION RATINGS TABLE
PACKAGE
TA
≤25 C
。
DERATING FACTOR
TA=70 C
。
TA=85 C
。
TSSOP20(FD)
2.18W
21.8mW/
C
。
1.2W
872mW
RECOMMENDED OPERATING CONDITIONS
MIN
TYP
MAX
UNIT
Supply voltage, VDD
2.5
6
V
High-level input voltage, VIH
SDNB
2
V
Low-level input voltage, VIL
SDNB
0.8
V
PWM frequency
200
300
KHz
Operating free-air temperature, TA
-20
85
C
。
Operating junction temperature, TJ
-20
125
C
。
ELECTRICAL CHARACTERISTICS
TA=25。C, VDD=PVDD=5V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
｜VOS｜
Output offset voltage（measured differentially） VI=0V, AV=20dB, RL=8
Ω
25
50
mV
PSSR
Power supply rejection ratio
VDD=PVDD=3.5V to 5.5V
-70
dB
│IIH│
High-level input current
VDD=AVDD=5.5V,
VI=5.8V (SDNB)
30
μA
│IIL│
Low-level input current
VDD=AVDD=5.5V,
VI=-0.3V (SDNB)
1
μA
IDD
Supply current
No load
6
10
mA
IDD（SD）
Supply current in shutdown mode
SDNB=0V
50
1000
nA
High side
450
600
rds（on）
Drain-source on-state resistance
VDD=5V, IO=500mA,
TJ=25
C
。
Low side
450
600
m
Ω
Av
Voltage gain
RL=8
Ω, VOLUME=2.8V
18
dB
Ri
Input resistance
VOLUME=2.8V~0V
24
200
k
Ω
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