L4954 Datasheet PDF | STMicroelectronics

STMicroelectronics L4954

L4954 is a quad output voltage regulator and a BLOCK DIAGRAM VS STCAP VOLTAGE REFERENCE Multiwatt15 ORDERING NUMBER: L4954 three output high side driver. The IC includes monitoring circuitry to warn the microprocessor of a low voltage condition: the LVWarn, output, sensing the slow dropping of STCAP pins voltage, gives the microprocessor time to store data.

Part No.	L4954
Datasheet	L4954 Download
Manufacturer	STMicroelectronics
Description	QUAD MULTIFUNCTION VOLTAGE REGULATOR
Buy	Stock & Price

DESCRIPTION

A RESET output is generatedat REG4’s decay. External protection must be provided for reverse battery protection. REG1 10V, 40mA 10V-REG1 REG2 8.5V, 175mA 8.5V-REG2 CURRENT LIMIT REG3 5V, 650mA 5V-REG3 RESET LVWarn RESET LVW REG4 5V, 100mA 5V-REG4-STBY EN1 OUTPUT CONTROL THERMAL SHUTDOWN OVERVOLTAGE PROTECTION HSD1 2.0A HSD2 0.3A HSD3 0.3A HSD1 EN2 HSD2 EN3 GND HSD3 D95AU346 June 2000 1/7 L4954

ABSOLUTE MAXIMUM RATINGS

Symbol VS VS VS,ovs Vin V out Top Tstg Parameter DC Operating Supply Voltage Transient Supply Overvoltages, rise time = 10ms delay time = 115ms Overvoltage Shutdown Input Voltages (EN1, EN2, EN3) Output Voltages (LVWarn, RESET) Operating Temperature Range Storage Temperature Range Value -0.6 to 26.5 34 27 -0.6 to 6.0 -0.6 to 6.0 -40 to 85 -40 to 150 Unit V V V V V °C °C PIN CONNECTION 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 10V REG1 8.5V REG2 5V REG3 EN3 EN2 EN1 RESET GND LVWarn 5V REG4-STBY ST CAP HSD3-0.3A HSD2-0.3A VS HSD1-2A TAB CONNECTED TO PIN 8 D95AU347 THE...