Samsung S1A2284A01-I0U0, S1A2284A02-I0U0 Datasheet
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.
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
9−SIP
Device Package Operating Temperature I
S1A2284A01-I0U0
9−SIP − 20°C − + 80°C
S1A2284A02-I0U0 7mA
D
15mA
1
S1A2284A01/02 5 DOT LED LEVEL METER DRIVER
BLOCK DIAGRAM
REFERENCE VOLTAGE
LED DRIVER
D3D2D1
D4
D5
1
D1
NOTE: Capacitor to be omitted when used as a DC input signal meter
2 3 4 5
D2 D3 D4 GND D5 OUTPUT INPUT Vcc
ABSOLUTE MAXIMUM RATINGS (Ta = 25°C)
Characteristic Symbol Value Unit
Supply Voltage V
Amp Input Voltage V
Pin 7 Voltage V
D Terminal Output Voltage V
Circuit Current I
D Terminal Output Current I
Power Dissipation P
Operating Temperature T
Storage Temperature T
CC
8-5
7-5
D
CC
D
d
OPR
STG
6
7
8
9
18 V
−0.5 − V
CC
V
6 V
18 V
12 mA
20 mA
1100 mW
−20 − + 80 °C
−40 − + 125 °C
NOTE: 11mW/°C is decreased at higher temperature than Ta = 25°C.
2
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