SA1469PH SL, SA1469PH Datasheet - Page 4

• Manufacturer Part Number: SA1469PH
• Description: 4-Ch BTL Driver
• Manufacturer: SL

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(Continued)
FUNCTIONAL DESCRIPTION
1. MUTE
1)
2)
3)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
Thermal shutdown
External muting
Pin No.
The circuit is muted during thermal shutdown and during the mute-on state.In each case, only the drivers are
muted.
During mute, the output pins remain at the internal bias voltage, roughly (Vcc-Vf)/2.
When the mute pin # 7 is open or the voltage of the mute pin # 7 is below 0.5V, the mute circuit is activated
so that the output circuit will be muted..
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
9
Function
Symbol
IN2B
IN2A
OUT2B
OUT2A
GND
OPOUT
OPIN (-)
OPIN (+)
OUT3A
OUT3B
IN3A
IN3B
V
V
VREF
IN4B
IN4A
OUT4B
OUT4A
GND
CC
CC
Mute
○
○
7
I/O
O
O
--
O
O
O
--
--
O
O
--
I
I
I
I
I
I
I
I
I
T≥175°C
V(mute)≤ 1.4V or open
Drive input
Drive input
Drive output
Drive output
Ground
Opamp output
Opamp input (-)
Opamp input (+)
Drive output
Drive output
Drive input
Drive input
Supply voltage
Supply voltage
2.5V bias voltage
Drive input
Drive input
Drive output
Drive output
Ground
Operation conditions
Output Driver
Bias
Description
REV:1.4
SA1469PH
Page 4 of 11
2008.07.23