S1A2284A01

5 DOT LED LEVEL METER DRIVER S1A2284A01/02 INTRODUCTION The S1A2284A01 and S1A2284A02 are monolithic integrated circuits designed for 5-dot LED level meter drivers with a builtin rectifying amplifier. It is suitable for AC/DC level meters such as VU meters or signal meters. 9−SIP FEATURES High gain rectifying amplifier included (GV = 26dB) Low radiation noise when LED turns on Logarithmic indicator for 5-dot bar type LED (−10, −5, 0, 3, 6dB) Constant current output S1A2284A01: lo = 15mA (Typ) S1A2284A02: Io = 7mA (Typ) Wide operating supply voltage range: VCC = 3.5V − 1 6V Minimum number of external parts required ORDERING IN FORMATION Device S1A2284A01-I0U0 S1A2284A02-I0U0 Package 9−SIP Operating Temperature − 20°C − + 80°C ID 15mA 7mA 1 S1A2284A01/02 5 DOT LED LEVEL METER DRIVER BLOCK DIAGRAM REFERENCE VOLTAGE LED DRIVER D1 D2 D3 D4 D5 1 D1 2 D2 3 D3 4 D4 5 GND 6 D5 7 OUTPUT 8 INPUT 9 Vcc NOTE: Capacitor to be omitted when used as a DC input signal meter ABSOLUTE MAXIMUM RATINGS (Ta = 25°C) Characteristic Supply Voltage Amp Input Voltage Pin 7 Voltage D Terminal Output Voltage Circuit Current D Terminal Output Current Power Dissipation Operating Temperature Storage Temperature Symbol VCC V8-5 V7-5 VD ICC ID Pd TOPR TSTG Value 18 −0.5 − VCC 6 18 12 20 1100 −20 − + 80 −40 − + 125 Unit V V V V mA mA mW °C °C NOTE: 11mW/°C is decreased at higher temperature than Ta = 25°C. 2 5 DOT LED LEVEL METER DRIVER S1A2284A01/02 ELECTRICAL CH...