STA508 STMicroelectronics

STA508 40V 4.5A QUAD POWER HALF BRIDGE 1FEATURES Figure 1. Package MULTIPOWER BCD TECHNOLOGY MINIMUM INPUT OUTPUT PULSE WIDTH DISTORTION PowerSO36 200m R COMPLEMENTARY DMOS dsON OUTPUT STAGE Table 1. Order Codes CMOS COMPATIBLE LOGIC INPUTS Part Number Package THERMAL PROTECTION STA508 PowerSO36 THERMAL WARNING OUTPUT UNDER VOLTAGE PROTECTION The device is particularly designed to make the out- put stage of a stereo All-Digital High Efficiency 2 DESCRIPTION (DDX) amplifier capable to deliver 80 + 80W STA508 is a monolithic quad half bridge stage in Mul- THD = 10% at V 35V output power on 8 load. cc tipower BCD Technology. The device can be used as In single BTL configuration is also capable to deliver dual bridge or reconfigured, by connecting CONFIG a peak of 160W THD = 10% at V = 35V on 4 CC pin to Vdd pin, as single bridge with double current load. The input pins have threshold proportional to V L capability, and as half bridge (Binary mode) with half pin voltage. current capability. Figure 2. Block Diagram +V V 1A CC CC 15 C30 C55 IN1A 29 M3 IN1A 1F 1000F L18 22H 17 VL 23 +3.3V OUT1A C20 CONFIG 24 16 100nF OUT1A C52 PWRDN PWRDN 25 M2 C99 14 GND1A 330pF R98 PROTECTIONS 100nF 6 R57 R59 FAULT 27 & C23 8 10K 10K LOGIC 26 12 V 1B 470nF CC R63 R100 C101 TRI-STATE 20 6 C58 C31 M5 100nF 11 100nF 1F C21 TH WAR 28 OUT1B 100nF TH WAR 10 IN1B 30 OUT1B L19 22H IN1B M4 V 21 13 GND1B DD V 22 DD V 33 REGULATORS SS 7 V 2A CC V 34 SS C32 M17 C58 C53 1F L113 22H 100nF 100nF V SIGN 8 CC 35 OUT2A C60 C110 9 100nF V SIGN 100nF CC 36 OUT2A C109 M15 C107 IN2A 6 GND2A 330pF R103 IN2A 31 100nF 6 C108 8 GND-Reg 20 4 V 2B 470nF CC R104 R102 C106 GND-Clean 20 C33 6 19 M16 100nF 3 1F C111 OUT2B 100nF IN2B 2 IN2B 32 OUT2B L112 22H GNDSUB M14 1 5 GND2B D00AU1148B Rev. 4 February 2006 1/10STA508 Table 2. Pin Description N Pin Description 1 GND-SUB Substrate Ground 2 3 OUT2B Output Half Bridge 2B 4V 2B Positive Supply CC 5 GND2B Negative Supply 6 GND2A Negative Supply 7V 2A Positive Supply CC 8 9 OUT2A Output Half Bridge 2A 10 11 OUT1B Output Half Bridge 1B 12 V 1B Positive Supply CC 13 GND1B Negative Supply 14 GND1A Negative Supply 15 V 1A Positive Supply CC 16 17 OUT1A Output Half Bridge 1A 18 NC Not Connected 19 GND-clean Logical Ground 20 GND-Reg Ground for Regulator V dd 21 22 V 5V Regulator Referred to Ground dd 23 V High Logical State Setting Voltage L 24 CONFIG Configuration pin 25 PWRDN Stand-by pin 26 TRI-STATE Hi-Z pin 27 FAULT Fault pin Advisor 28 TH-WAR Thermal Warning Advisor 29 IN1A Input of Half Bridge 1A 30 IN1B Input of Half Bridge 1B 31 IN2A Input of Half Bridge 2A 32 IN2B Input of Half Bridge 2B 33 34 V 5V Regulator Referred to +V SS CC 35 36 V Sign Signal Positive Supply CC 2/10