参数资料
型号: MC34827A2EPR2
厂商: Freescale Semiconductor
文件页数: 9/57页
文件大小: 0K
描述: IC USB POWER MANAGER 20-QFN
标准包装: 1
应用: OR 控制器,UART/USB 数据,音频管理
电流 - 电源: 9µA
电源电压: 2.7 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-UFQFN 裸露焊盘
供应商设备封装: 20-QFN-EP(3x4)
包装: 标准包装
其它名称: MC34827A2EPR2DKR
ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
Table 4. Dynamic Electrical Characteristics
Characteristics noted under conditions V DD = 3.6 V, V BUS = 5.0 V, V DDIO = 3.0 V, -40 °C ≤ T A ≤ 85 °C (see Figure 1 ), unless
otherwise noted. Typical values noted reflect the approximate parameter means at V DD = 3.6 V and T A = 25 °C under nominal
conditions, unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
POWER ON AND OFF DELAY
VDD Power-on Reset Threshold
ms
VDD rising deglitch time
VDD falling deglitch time
t D2
t VDDDGT_F
7.0
1.7
8.5
2.5
10.2
3.5
VBUS Detection Threshold Deglitch Time (for Both Rising and Falling Edges)
t VBUS_DET
3.5
4.5
5.7
ms
VBUS Over-voltage Protection
μ s
Protection delay
t OVPD
-
-
2.0
Falling-edge deglitch time (12)
t OVPDGT_F
-
25
-
VBUS Over-temperature Protection
MOSFET turning off speed when OTP occurs (13)
Deglitch time
t OTP_TO
t OTP_DGT
-
-
-
15
0.5
-
A/ μ s
μ s
OSCILLATOR
Oscillation Frequency
f OSC
88
100
112
kHz
SWITCHING DELAY
t 1 - t 0 (td in Figure 17 , Default Value is TD = 0100)
t d
ms
TD = 0000
TD = 0001
TD = 0010
TD = 0011
TD = 0100
...
TD = 1111
-
-
-
-
-
...
-
100
200
300
400
500
...
1600
-
-
-
-
-
...
-
t 2 - t 1 ( Figure 17 )
t 3 - t 2 ( Figure 17 )
t 4 - t 1 ( Figure 17 )
t 6 - t 3 ( Figure 17 )
t SW
t SW
t SW
t SW
20
20
100
100
-
-
-
-
-
-
-
-
ms
ms
ms
ms
ID DETECTION
ID FLOAT Detection Deglitch Time
Video Cable Detection Time (Video Cable Detection Current Source On Time)
t ID_FLOAT
t VCBL
-
-
20
20
-
-
ms
ms
ADC
ADC Conversion Time
t CONV
-
1.0
-
ms
Notes
11. The protection delay is defined as the interval between VBUS voltage rising above the OVP rising threshold, and the OUT pin voltage
dropping below the OVP rising threshold voltage for a VBUS ramp rate of >1.0 V/ μ s.
12. The OVP deglitch timer is only for the falling edge threshold.
13. Not tested. Guaranteed by design.
MC34827
Analog Integrated Circuit Device Data
Freescale Semiconductor
9
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