tk2070 Tripath Technology Inc., tk2070 Datasheet - Page 6

• Manufacturer Part Number: tk2070
• Description: Stereo 70w 4ohm Class-t Digital Audio Amplifier Driver Using Digital Power Processing Dpp Technology
• Manufacturer: Tripath Technology Inc.

T P S 1 0 3 5 P O W E R S T A G E P I N D E S C R I P T I O N S
T P S 1 0 3 5 P O W E R S T A G E P I N O U T
(Top view with heat slug down)
6
Pin
1
2
3
4
5
6
7
8
Function
OUTPUT
BYPASS
VBOOT
SLEEP
FAULT
INPUT
PGND
VDD
Bootstrapped voltage to supply drive to gate of high-side output MOSFET.
Sleep Input pin. When set to logic level high, sleep mode is enabled. When set
to logic level low (grounded), sleep mode is disabled.
Bypass pin for the gate drive power supply. The gate drive for the output mosfets
are internally generated from VDD. This pin should be connected to ground
through a 1.0uF or larger capacitor.
(pin 8) through a 27k: resistor.
Fault Output pin. During normal operation this pin is high. If an overcurrent or
over temperature condition is detected the fault pin will become low. This pin
must be connected to the Bypass pin (pin 7) through a 27k: resistor.
OUTPUT
INPUT
PGND
VDD
8-pin SOIC with Heatslug
1
2
3
4
(Top View)
Input pin for power stage.
8
7
6
5
Positive supply pin.
Power Ground pin.
Description
Output pin.
FAULT
BYPASS
SLEEP
VBOOT
This pin must be connected to the Fault pin
T r i p a t h T e c h n o l o g y , I n c . - T e c h n i c a l I n f o r m a t i o n
TK2070 – MC/2.1/10-03