STA508_06 Datasheet, PDF (1/10 Pages) STMicroelectronics – 40V 4.5A QUAD POWER HALF BRIDGE

STA508
40V 4.5A QUAD POWER HALF BRIDGE
1 FEATURES
■ MULTIPOWER BCD TECHNOLOGY
■ MINIMUM INPUT OUTPUT PULSE WIDTH
DISTORTION
■ 200mΩ R_dsON COMPLEMENTARY DMOS
OUTPUT STAGE
■ CMOS COMPATIBLE LOGIC INPUTS
■ THERMAL PROTECTION
■ THERMAL WARNING OUTPUT
■ UNDER VOLTAGE PROTECTION
2 DESCRIPTION
STA508 is a monolithic quad half bridge stage in Mul-
tipower BCD Technology. The device can be used as
dual bridge or reconfigured, by connecting CONFIG
pin to Vdd pin, as single bridge with double current
capability, and as half bridge (Binary mode) with half
current capability.
Figure 2. Block Diagram
Figure 1. Package
PowerSO36
Table 1. Order Codes
Part Number
STA508
Package
PowerSO36
The device is particularly designed to make the out-
put stage of a stereo All-Digital High Efficiency
(DDX™) amplifier capable to deliver 80 + 80W @
THD = 10% at V_cc 35V output power on 8Ω load.
In single BTL configuration is also capable to deliver
a peak of 160W @THD = 10% at V_CC = 35V on 4Ω
load. The input pins have threshold proportional to V_L
pin voltage.
IN1A 29
M3
IN1A
+3.3V
VL 23
CONFIG 24
PWRDN PWRDN 25
M2
R57
R59
10K
10K
FAULT 27
26
PROTECTIONS
&
LOGIC
C58
TRI-STATE
M5
100nF
TH_WAR
TH_WAR 28
IN1B
IN1B 30
V_DD 21
V_DD 22
V_SS 33
V_SS 34
C58
100nF
C53
100nF
C60
100nF
V_CCSIGN ₃₅
V_CCSIGN ₃₆
IN2A
IN2A 31
REGULATORS
M4
M17
M15
GND-Reg
20
GND-Clean
19
M16
IN2B
IN2B 32
GNDSUB
M14
1
V_CC1A
15
C30
1µF
17
OUT1A
16
OUT1A
14 GND1A
12 V_CC1B
C31
11
1µF
OUT1B
10
OUT1B
13 GND1B
7 V_CC2A
C32
1µF
8
OUT2A
9
OUT2A
6 GND2A
4 V_CC2B
C33
3
1µF
OUT2B
2
OUT2B
5 GND2B
L18 22µH
C20
100nF
C52
330pF R98
6
R63 R100
20
6
C21
100nF
L19 22µH
C99
100nF
C23
470nF
C101
100nF
L113 22µH
C110
100nF
C109
330pF R103
6
R104 _R102
20
6
C111
100nF
L112 22µH
C107
100nF
C108
470nF
C106
100nF
D00AU1148B
+V_CC
C55
1000µF
8Ω
8Ω
February 2006
Rev. 4
1/10