STA501 STMicroelectronics, STA501 Datasheet - Page 5

• Manufacturer Part Number: STA501
• Description: Audio Amplifiers 40V 3.5A Half Bridge
• Manufacturer: STMicroelectronics

Specifications of STA501

• Product: Class-AB
• Output Power: 50 W
• Operating Supply Voltage: 12 V, 15 V, 18 V
• Supply Current: 50 mA
• Maximum Operating Temperature: + 70 C
• Audio Load Resistance: 8 Ohms
• Input Signal Type: Single
• Minimum Operating Temperature: 0 C
• Output Signal Type: Differential
• Supply Type: Single
• Supply Voltage (max): 36 V
• Supply Voltage (min): 10 V
• Output Type: 1-Channel Mono
• Package / Case: PowerSO-38
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTCS (continued)
Notes: 1. The following table explains the VL, VH variation with Ibias
LOGIC TRUTH TABLE (see fig. 2)
I
Symbol
PWRDN-H
TRI-STATE
I
PWRDN
t
I
VCC-hiz
I
pw-min
I
FAULT
I
out-sh
I
V
VCC-
VCC
IN-L
V
V
Ibias
UV
H
2.7
3.3
L
5
0
1
1
1
1
Low level input current
Hi level PWRDN pin input current
Low logical state voltage VL (pin
PWRDN, TRISTATE) (note 1)
High logical state voltage VH (pin
PWRDN, TRISTATE) (note 1)
Supply Current from Vcc in Power
Down
Output Current pins
FAULT -TH-WARN when
FAULT CONDITIONS
Supply current from Vcc in Tri-
state
Supply current from Vcc in
operation
(both channel switching)
Overcurrent protection threshold
(short circuit current limit)
Undervoltage protection threshold
Output minimum pulse width
VLmin
0.85
0.7
0.8
INA
0
0
1
1
x
Parameter
VHmax
1.85
1.5
1.7
INB
0
1
0
1
x
Unit
Pin voltage = 0.3V
Ibias = 3.3V
Ibias = 3.3V
Ibias = 3.3V
PWRDN = 0
Vpin = 3.3V
Vcc=30V; Tri-state=0
Input pulse width = 50% Duty;
Switching Frequency = 384Khz;
No LC filters;
No Load
V
V
V
OFF
OFF
OFF
ON
ON
Q1
Test conditions
OFF
OFF
OFF
ON
ON
Q2
OFF
OFF
OFF
ON
ON
Q3
Min.
0.8
3.5
70
Typ.
OFF
OFF
OFF
35
22
50
ON
ON
Q4
1
1
6
7
Max.
150
1.7
3
8
NEGATIVE
POSITIVE
OUTPUT
Not used
MODE
DUMP
STA501
Hi-Z
Unit
mA
mA
mA
mA
ns
V
V
A
V
A
A
5/8