Sanyo EP93F manual LA47510, LA4753636

Power Amplifier

LA47510

Overview

The LA47510 is a four-channel BTL power amplifier IC designed for use in car stereo systems.

Functions

■Maximum output: 50 W 4 (VCC = 14.4 V, RL = 4Ω )

■Offset detection function

■Offset detection function off switch

■Muting function

■Standby switch

■Built-in each protection circuit

◆Output pin-to-Vcc short

◆Output pin-to-GND short

◆Load short

◆Overvoltage

◆Thermal shutdown

■Package: HZIP25

Block Diagram

							+
				VCC1/2	VCC3/4 2200∝F			0.022∝F
			6	20
IN 1	+	11		+	+	9	OUT1+
	0.22∝F		Offset				OUT1-
+5V 10kΩ				-	-	7
		25	Detect
OFFSET DET			Circuit	Protective			PWR GND1
						8
				circuit
				-	+	5	OUT2+
IN 2	+	12		+	-	3	OUT2-
	0.22∝F
				Aux		2	PWR GND2
ST BY		4	Stand by	circuit
			Switch
	+5V
	ST ON		Ripple	Mute			Mute 10kΩ
R.F	+	10				22
			Filter	circuit			+
	47∝F					3.3∝F
					+		Low Level
IN 3	+	15		+		17	OUT3+ Mute ON
	0.22∝F						OUT3-
OFFSET DET				-	-	19
OFF S.W		1
	GND						PWR GND3
				Protective		8
OFFSET DET
	OFF	13		circuit
PRE GND				-	+	21	OUT4+
IN 4	+	14		+	-	23	OUT4-
	0.22∝F
ON TIME C +		16	Muting &				PWR GND4
			ON Time Control			24
	22∝F		Circuit

Power Amplifierplifier

LA4753636

Overview

The LA47536 is a four-channel BTL power amplifier IC designed for use in car stereo systems.

Functions

■Maximum output: 45 W 4 (VCC = 14.4 V, RL = 4Ω )

■Offset detection function

■Offset detection function off switch

■Muting function

■Standby switch

■Built-in each protection circuit

◆Output pin-to-Vcc short

◆Output pin-to-GND short

◆Load short

◆Overvoltage

◆Thermal shutdown

■Package: HZIP25

Block Diagram

							+
				VCC1/2	VCC3/4 2200∝F			0.022∝F
			6	20
IN 1	+	11		+	+	9	OUT1+
	0.22∝F		Offset				OUT1-
+5V 10kΩ				-	-	7
		25	Detect
OFFSET DET			Circuit	Protective			PWR GND1
						8
				circuit
				-	+	5	OUT2+
IN 2	+	12		+	-	3	OUT2-
	0.22∝F
				Aux		2	PWR GND2
ST BY		4	Stand by	circuit
			Switch
	+5V
	ST ON		Ripple	Mute			Mute 10kΩ
R.F	+	10				22
			Filter	circuit			+
	47∝F					3.3∝F
					+		Low Level
IN 3	+	15		+		17	OUT3+ Mute ON
	0.22∝F						OUT3-
OFFSET DET				-	-	19
OFF S.W		1
	GND						PWR GND3
				Protective		8
OFFSET DET
	OFF	13		circuit
PRE GND				-	+	21	OUT4+
IN 4	+	14		+	-	23	OUT4-
	0.22∝F
ON TIME C +		16	Muting &				PWR GND4
			ON Time Control			24
	22∝F		Circuit

47 Car Audio 48 Car Audio