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參數(shù)資料
| 型號： | PC34704BEP |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 電源管理 |
| 英文描述： | 8-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC56 |
| 封裝： | 7 X 7 MM, 1 MM HEIGHT, 0.40 MM PITCH, ROHS COMPLIANT, QFN-56 |
| 文件頁數(shù)： | 6/50頁 |
| 文件大?。?/td> | 2010K |
| 代理商： | PC34704BEP |
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Analog Integrated Circuit Device Data
14
Freescale Semiconductor
34704
ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
Table 5. Dynamic Electrical Characteristics
Characteristics noted under conditions 2.7V
≤ VIN ≤ 5.5V, -20°C ≤ TA ≤ 85°C, GND = 0V, unless otherwise noted. Typical
values noted reflect the approximate parameter means at TA = 25°C under nominal conditions, unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
FREQ
Selectable Switching Frequency 1
FSW1
750
-
2000
kHz
Selectable Switching Frequency 2
FSW2
250
-
1000
kHz
Selectable Switching Frequency Step Size
FSTEP
-
250
-
kHz
Switching Frequency Accuracy
-10
-
10
%
Retry Timeout Period(15)
tTIMEOUT
-
10
-
ms
CURRENT LIMIT MONITORING
Over-current Limit Timer(15)
tLIMIT
-
10
-
ms
Retry Timeout Period(15)
tRETRY
-
10
-
ms
OUTPUT OVER-VOLTAGE/UNDER-VOLTAGE MONITORING
Under-voltage Threshold (Response A)
VUV-R
-
-20
-
%
Over-voltage Threshold (Response A)
VOV-R
-
20
-
%
Under-voltage Threshold (Response B)
VUV-R
-
-20
-
%
Over-voltage Threshold (Response B)
VOV-R
-
20
-
%
Filter Delay Timer(15)
tFILTER
-
20
-
s
RST
RST Reset Delay(15)
tRST-DELAY
-
10
ms
REGULATOR 1 & VG
Li-Ion Battery Operating Frequency(14), (15)
FSW1
750
-
1500
kHz
Operating Frequency Selection Step Size
FSTEP
-
250
-
kHz
Constant Time Off Value(15)
tOFF
-
1.0
-
s
Low Side Time Out(15)
tTIMEOUT
-
15
-
s
REGULATOR 2
Li-Ion Battery Operating Frequency(15)
FSW1
750
-
2000
kHz
Operating Frequency Selection Step Size
FSTEP
-
250
-
kHz
Notes
14.
When REG1 is used, the maximum FSW1 Frequency programed with external components should be 1500KHz
15.
Guaranteed by design.
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