参数资料
型号: MC34708VM
厂商: Freescale Semiconductor
文件页数: 71/159页
文件大小: 0K
描述: IC POWER MANAGEMENT 206MAPBGA
标准包装: 160
应用: 通用
电源电压: 1.8 V ~ 4.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 206-LFBGA
供应商设备封装: 206-MAPBGA(13x13)
包装: 托盘
Functional Block Description
Table 60. VUSB2 Electrical Specification
Characteristics noted under conditions BP = 3.6 V, V BUS = 5.0 V, - 40 ? C ? T A ? 85 ? C, unless otherwise noted. Typical values
at BP = 3.6 V and T A = 25 °C under nominal conditions, unless otherwise noted.
Symbol
Characteristic
Min
Typ
Max
Unit
Notes
VUSB2 LOW POWER MODE - DC
V USB2
Output Voltage V OUT
V
? V INMIN < V IN < V INMAX IL MINLP < IL < IL MAXLP
V NOM - 3%
V NOM
V NOM + 3%
I USB2
Current Load Range IL MINLP to IL MAXLP
0.0
-
3.0
mA
I USB2Q
Low Power Mode Quiescent Current
μA
? V INMIN < V IN < V INMAX IL = 0
-
8.0
10.5
VUSB2 ACTIVE MODE - AC
VUSB2 PSRR PSRR, IL = 75% of IL MAX 20 Hz to 20 kHz
dB
t ON-VUSB2
t OFF-VUSB2
VUSB2 OS-
? V IN = V INMIN + 100 mV
? V IN = V NOM + 1.0 V
Turn-on Time
? Enable to 90% of end value V IN = V INMIN , V INMAX IL = 0
Turn-off Time
? Disable to 10% of initial value V IN = V INMIN , V INMAX IL = 0
Start-up Overshoot
-
-
-
0.05
30
30
-
-
-
-
1.0
10
ms
ms
%
START
? V IN = V INMIN , V INMAX IL = 0
-
1.0
2.0
VUSB2 LO
Transient Load Response, V IN = V INMIN , V INMAX x
TRANSIENT
? VUSB2=01, 10, 11
? VUSB2=00
-
-
1.0
50
2.0
70
%
mV
VUSB2 LI
Transient Line Response
mV
TRANSIENT
? IL = 75% of IL MAX
-
5.0
8.0
t MOD-VUSB2 Mode Transition Time
μs
? From low power to active and from active to low power
-
-
100
V IN = V INMIN , V INMAX IL = IL MAXLP
VUSB MODE Mode Transition Response
%
RES
? From low power to active and from active to low power
-
1.0
2.0
V IN = V INMIN , V INMAX IL = IL MAXLP
7.5.6.8
VDAC
The primary applications of this power supply is the TV-DAC. However, these supplies could also be used for other peripherals
if one of these functions is not required. Low Power modes and programmable standby options can be used to optimize power
efficiency during deep sleep modes.
An external PNP is utilized for VDAC to avoid excess on-chip power dissipation at high loads and large differentials between BP
and output settings. External PNP devices must always be connected to the BP line in the application. The recommended PNP
device is the ON Semiconductor NSS12100XV6T1G, which is capable of handling up to 250 mW of continuous dissipation at
minimum footprint and 75 °C of ambient. For use cases where up to 500 mW of dissipation is required, the recommended PNP
device is ON Semiconductor NSS12100UW3TCG. For stability reasons, a total resistance of 100 m ? ? 20% in series with the
output capacitance is required. The total resistance includes the ESR of the capacitor plus an external resistance provided by a
discrete resistor or PCB circuit trace.
A short-circuit condition will shut down the VDAC regulator and generate an interrupt for SCPI, if the REGSCPEN bit is set.
The nominal output voltage of this regulator is SPI configurable, and can be 2.5 V, 2.6 V, 2.7 V, or 2.775 V. The maximum output
current along with an external PNP, is 250 mA.
MC34708
Analog Integrated Circuit Device Data ?
71
Freescale Semiconductor
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