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STA500
30V 3.5A QUAD POWER HALF BRIDGE
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STA500February 2003 MINIMUM INPUT OUTPUT PULSE WIDTH
DISTORTION 200mΩ RdsON COMPLEMENTARY DMOS
OUTPUT STAGE CMOS COMPATIBLE LOGIC INPUTS THERMAL PROTECTION THERMAL WARNING OUTPUT OVERVOLTAGE, UNDERVOLTAGE
PROTECTION
DESCRIPTIONSTA500 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.
The device is particulary designed to make the output
stage of a stereo All-Digital High Efficiency (DDX™)
amplifier capable to deliver 30 + 30W output power
on 8Ω load and 60W on 8Ω load in bridge BTL con-
figuration or mono 60W on 4Ω load. The input pins
have threshold proportional to Ibias pin voltage.
30V 3.5A QUAD POWER HALF BRIDGE
AUDIO APPLICATION CIRCUIT
STA500 2/9
PIN FUNCTION
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STA500
FUNCTIONAL PIN STATUS* : The pin is open collector. To have the high logic value, it needs to be pulled up by a resistor.
**: To put CONFIG = 1 means connect Pin 24 (CONFIG) to Pins 21, 22 (Vdd)
STA500 4/9
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTCS (Ibias = 3.3V; Vcc = 28V; T = 25°C unless otherwise specified)
(*) g1 dsON x1– R dsONx2– dON x1– R dsONx2+ ()--------------------------------------------------------------------– x100=
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STA500Notes:1. The following table explains the VL, VH variation with Ibias
Note 2: If used in single BTL configuration, the device may be not short circuit protected
LOGIC TRUTH TABLE (see fig. 2)
ELECTRICAL CHARACTERISTCS (continued)(Ibias = 3.3V; Vcc = 28V; T = 25°C unless otherwise specified)
STA500 6/9
Figure 1. Test Circuit.
Figure 2.
Figure 3.
