Datasheet
TPA2028D1
SLOS660B –JANUARY 2010–REVISED SEPTEMBER 2012
www.ti.com
AVAILABLE OPTIONS
(1)
T
A
PACKAGED DEVICES
(2)
PART NUMBER SYMBOL
TPA2028D1YZFR
–40°C to 85°C 9-ball, WCSP NSU
TPA2028D1YZFT
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
Web site at www.ti.com
(2) The YZF packages are only available taped and reeled. The suffix R indicates a reel of 3000; the suffix T indicates a reel of 250.
RECOMMENDED OPERATING CONDITIONS
MIN MAX UNIT
V
DD
Supply voltage PVDD 2.5 5.5 V
V
IH
High-level input voltage EN, SDA, SCL 1.3 V
V
IL
Low-level input voltage EN, SDA, SCL 0.6 V
T
A
Operating free-air temperature –40 +85 °C
ELECTRICAL CHARACTERISTICS
at T
A
= 25°C, V
DD
= 3.6 V, SDZ = 1.3 V, and R
L
= 8 Ω + 33 μH (unless otherwise noted).
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
DD
Supply voltage range 2.5 3.6 5.5 V
EN = 0.35 V, V
DD
= 2.5 V 0.1 1
I
SDZ
Shutdown quiescent current EN = 0.35 V, V
DD
= 3.6 V 0.2 1 µA
EN = 0.35 V, V
DD
= 5.5 V 0.3 1
EN = 1.3 V, V
DD
= 2.5 V 35 50
Software shutdown quiescent
I
SWS
EN = 1.3 V, V
DD
= 3.6 V 50 70 µA
current
EN = 1.3 V, V
DD
= 5.5 V 75 100
V
DD
= 2.5 V 1.5 2.5
I
DD
Supply current V
DD
= 3.6 V 1.7 2.7 mA
V
DD
= 5.5 V 2 3.5
f
SW
Class D Switching Frequency 275 300 325 kHz
I
IH
High-level input current V
DD
= 5.5 V, EN = 5.8 V 1 µA
I
IL
Low-level input current V
DD
= 5.5 V, EN = –0.3 V –1 µA
t
START
Start-up time 2.5 V ≤ V
DD
≤ 5.5 V no pop, C
IN
≤ 1 μF 5 ms
POR Power on reset ON threshold 2 2.3 V
POR Power on reset hysteresis 0.2 V
R
L
= 8 Ω, V
icm
= 0.5 V and V
icm
= V
DD
– 0.8 V,
CMRR Input common mode rejection –75 dB
differential inputs shorted
V
DD
= 3.6 V, A
V
= 6 dB, R
L
= 8 Ω, inputs ac
V
oo
Output offset voltage 1.5 10 mV
grounded
Output Impedance in shutdown 2 kΩ
Z
OUT
EN = 0.35 V
mode
Gain accuracy Compression and limiter disabled, Gain = 0 to 30 dB –0.5 0.5 dB
PSRR Power supply rejection ratio V
DD
= 2.5 V to 4.7 V –80 dB
4 Copyright © 2010–2012, Texas Instruments Incorporated
Product Folder Links: TPA2028D1