PAM8945 Datasheet, PDF (3/9 Pages) Diodes Incorporated – 4.0W CLASS-G AUDIO AMPLIFIER WITH INTEGRATED

Functional Block Diagram
VBAT
SW
EN
IN+
IN-
AGC
Bias
Boost Convertor
+
AGC
-
PWM
Modulator
UVLO
VREF
OSC
Gate
Drive
Gate
Drive
SCP
OTP
DCP
Startup
Pr otec ti on
PAM8945
PVDD
OUT+
OU T-
AGND
BGND
PGND
Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.)
Symbol
Parameter
VBAT
V_I
T_A
T_J
T_STG
Supply Voltage
Input Voltage, EN, IN+, IN-, AGC
Operating Free-air Temperature Range
Operating Junction Temperature Range
Storage Temperature Range
Value
-0.3 to 6.0
-0.3 to VBAT + 0.3
-40 to +85
-40 to +150
-65 to +150
Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.)
Symbol
Parameter
VBAT
Supply Voltage
V_IH
High-Level Input Voltage
EN
V_IL
Low-Level Input Voltage
EN
T_A
Operating Free-Air Temperature
Thermal Information
Min
2.8
1.3
GND
-40
Max
5.2
VBAT
0.6
+85
Symbol
Parameter
θJA Thermal Resistance (Junction to Ambient)
θJc Thermal Resistance (Junction to Case)
Package
W-QFN3020-12
W-QFN3020-12
Max
62
11
PAM8945
Document number: DS38267 Rev. 1 - 2
3 of 9
www.diodes.com
Unit
V
V
°C
°C
°C
Unit
V
V
V
°C
Unit
°C/W
December 2015
© Diodes Incorporated