參數(shù)資料
型號(hào): P95020ZNQGI8
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 電源管理
英文描述: 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC132
封裝: QFN-132
文件頁(yè)數(shù): 133/137頁(yè)
文件大小: 3533K
代理商: P95020ZNQGI8
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P95020 / Preliminary Datasheet
Revision 0.7.10
95
2010 Integrated Device Technology, Inc.
11.3.2
CLASS_D - Operation Registers:
This Register pair contains Short Circuit Disable and Fault settings. They must be set identically.
IC Address = Page-0: 139(0x8B), C Address = 0xA08B
IC Address = Page-0: 141(0x8D), C Address = 0xA08D
Bit
Bit Name
Def.
Set.
User
Type
Value
Description / Comments
[3:0]
RESERVED
0h
RW
RESERVED
4
FAULT_CLASS_D
0b
R
1 = Fault
0 = No Fault
Short Circuit Detected
5
RESERVED
0b
R
RESERVED
6
SC_DISABLE_CLASS_D
0b
RW
1 = Disable SC Protect
0 = Normal SC Protect
Disable Short Circuit Protection
7
RESERVED
0b
RW
RESERVED
11.3.3
CLASS_D - Reserved Registers:
These registers are reserved and should not be written to.
IC Address = Page-0: 142(0x8E), C Address = 0xA08E
IC Address = Page-0: 143(0x8F), C Address = 0xA08F
11.4 CLASS_D - AUDIO INTERFACE AND DECODE
The audio functions of the CLASS_D BTL Power Output are controlled with internal logic level timing signals from the
Audio Module. (See Sections 2.12 in the AUDIO MODULE)
11.5 CLASS_D - SHORT CIRCUIT PROTECTION CIRCUITRY
The CLASS_D BTL Power Output includes protection circuitry for over-current conditions. Setting the SC_DISABLE to
HIGH will disable Short Circuit protection.
When SC_DISABLE is set to LOW and a short circuit occurs, all output FETS will be latched into a disabled mode (all
output FETS off). The short circuit latch is autonomously reset by the AUDIO Module.
11.6 CLASS_D - APPLICATIONS INFORMATION
11.6.1
CLASS_D - Recommended External Components
ID
Qty
Description
CIN1
1
Capacitor Ceramic 1.0 F 10V 10% X7R 0805
CIN2
1
Capacitor 330 F6.3V Elect FK SMD
CSNUB
1
Capacitor, Ceramic, 220 pF, 10%, X7R, 0402
RSNUB
1
Resistor, 5.1 Ohm, Watt
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