參數(shù)資料
型號(hào): LM4651
廠商: National Semiconductor Corporation
英文描述: LM4651 & LM4652 Overture⑩ Audio Power Amplifier 170W Class D Audio Power Amplifier Solution
中文描述: LM4651
文件頁數(shù): 5/20頁
文件大?。?/td> 586K
代理商: LM4651
LM4651 Pin Descriptions
Pin No.
1
2,27
3
4
5,15
Symbol
OUT
1
BS
1
,BS
2
HG
1
HG
2
GND
Description
The reference pin of the power MOSFET output to the gate drive circuitry.
The bootstrap pin provides extra bias to drive the upper gates, HG
1
,HG
2
.
HighGate
#
1 is the gate drive to a top side MOSFET in the H-Bridge.
HighGate
#
2 is the gate drive to a top side MOSFET in the H-Bridge.
The ground pin for all analog circuitry.
The internally regulated positive voltage output for analog circuitry. This pin is available
for internal regulator bypassing only.
The positive supply input for the IC.
The internally regulated negative voltage output for analog circuitry. This pin is available
for internal regulator bypassing only.
The feedback instrumentation amplifier output pin.
The error amplifier inverting input pin. The input audio signal and the feedback signal are
summed at this input pin.
The error amplifier output pin.
The thermal shut down input pin for the thermal shut down output of the LM4652.
Standby function input pin. This pin is CMOS compatible.
The feedback instrumentation amplifier pin. This must be connected to the feedback filter
from V
O1
(pin 15 on the LM4652 ).
The switching frequency oscillation pin. Adjusting the resistor from 15.5k
to 0
changes the switching frequency from 75kHz to 225kHz.
The dead time setting pin.
Short circuit setting pin. Minimum setting is 10A.
The feedback instrumentation amplifier pin. This must be connected to the feedback filter
from V
O2
(pin 7 on the LM4652 ).
The regulator output for digital blocks. This pin is for bypassing only.
The negative voltage supply pin for the IC.
The start up capacitor input pin. This capacitor adjusts the start up time of the diagnostic
sequence for the modulator. Refer to
Start up Sequence and Timing
in the
Application Information
section.
LowGate
#
1 is the gate drive to a bottom side MOSFET in the H-Bridge.
LowGate
#
2 is the gate drive to a bottom side MOSFET in the H-Bridge.
The reference pin of the power MOSFET output to the gate drive circuitry.
6
+6V
BYP
7
+V
CC
8
6V
BYP
9
F
BK
V
O
10
E
RR
I
N
11
12
13
E
RR
V
O
TSD
STBY
14
FBK
1
16
OSC
17
18
Delay
SCKT
19
FBK
2
20,21
22,23
V
DDBYP
V
EE
24
START
25
26
28
LG
1
LG
2
OUT
2
L
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4651_09 制造商:NSC 制造商全稱:National Semiconductor 功能描述:170W Class D Audio Power Amplifier Solution
LM4651N 制造商:Texas Instruments 功能描述:IC AUDIO BOOMER CLASS D 170W 4651
LM4651N 制造商:Texas Instruments 功能描述:IC AUDIO BOOMER CLASS D 170W 4651
LM4651N/NOPB 功能描述:IC AMP AUDIO PWR 170W MONO 28DIP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Overture™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機(jī),2-通道(立體聲) 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C,麥克風(fēng),靜音,短路保護(hù),音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP(2.09x2.09) 封裝/外殼:25-WFBGA,WLCSP 包裝:帶卷 (TR)
LM4652 制造商:NSC 制造商全稱:National Semiconductor 功能描述:170W Class D Audio Power Amplifier Solution