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參數(shù)資料
| 型號(hào)： | LV4920H |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36 |
| 封裝： | 0.375 INCH, HSOP-36 |
| 文件頁數(shù)： | 2/12頁 |
| 文件大小： | 165K |
| 代理商： | LV4920H |
LV4920H
No.A0989-10/12
3.2 Thermal protection circuit
The thermal protection circuit detects the temperature (150
°C or higher) inside the IC and protects the IC from
thermal damage. When the protection circuit is activated, both the high- and low-side output transistors are
turned off, placing the output into the high-impedance state. This protective operation is given a hysteresis.
Also, NOD_OUTSHDNB (Nch open drain) signal is output for an external monitor pin.
3.3 Low power supply voltage protection circuit
The low power supply voltage protection circuit turns off both of the high- and low-side output transistors to
place the output into the high-impedance state when the power supply voltage (PVD) falls below a predetermined
value (6.7V or lower). This operation (activating the protective circuit when VD rises beyond 7.5V) is given a
hysteresis (0.8V or greater).
Also, NOD_OUTSHDNB (Nch open drain) signal is output for an external monitor pin.
Application Circuit Example
* NOD_THERM at pin 16 and NOD_OUTSHDN at pin 17 are outputs of N-ch open-drain type. When CPU or other
device monitors these outputs, it is necessary to connect pull-up resistors to a power supply for the CPU and other
device. The pull-up resistors are not required if they are not to be used (not monitored).
VD
0-5V
PWM_B2
PWM_A2
PWM_A1
PWM_B1
RL
PGND2
VDDA1
VDDA2
PVD1
VREG5
NC1
NC2
NC3
NC6
NC7
22 H
0.33 F
1 F
1000 F
1 F
1
3
0.1 F
OVER
CURRENT
THERMAL
CONTROL
DELAY
CONTROL
DELAY
NC4
NC5
0-5V
4
GND
NOD_THERM
NOD_OUTSHDN
OUTPUTSTAGE
CH1+
OUTPUTSTAGE
CH1-
OUTPUTSTAGE
CH2-
OUTPUTSTAGE
CH2+
NC8
PVD1
PVD2
PGND2
PGND1
POWER SUPPLY
PWM_RECEIVER
SEQUENCE
BOOT_CH1_P
BOOT_CH1_N
BOOT_CH2_N
BOOT_CH2_P
OUT_CH2_P
OUT_CH2_N
OUT_CH1_N
OUT_CH1_P
STBY
MUTE
1 F
LV4920H(HSOP36)
2
3
4
5
4
6
4
7
4
8
4
9
4
10
4
11
4
12
4
13
4
14
4
15
4
16
4
17
4
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
R1
R2
or
3-12V
R1,R2=Pull-Up Registor
(BD-mode)
(AD-mode)
(BD-mode)
(AD-mode)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LV4920H-MPB-E | 制造商:ON Semiconductor 功能描述:CLASS-D POWER AMPLIFIER - Ammo Pack |
| LV4920H-TLM-E | 制造商:ON Semiconductor 功能描述:CLASS-D POWER AMPLIFIER - Tape and Reel |
| LV4921V-MPB-H | 制造商:ON Semiconductor 功能描述:CLASS-D POWER AMPLIFIER - Ammo Pack |
| LV4921V-TLM-H | 制造商:ON Semiconductor 功能描述:CLASS-D POWER AMPLIFIER - Tape and Reel |
| LV4922V-MPB-H | 制造商:ON Semiconductor 功能描述:CLASS-D POWER AMPLIFIER - Ammo Pack |
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