參數(shù)資料
型號： NCP4331DR2G
廠商： ON SEMICONDUCTOR
元件分類： 穩(wěn)壓器
英文描述： Synchronous Buck Controller for High Efficiency Post Regulation
中文描述： SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDSO16
封裝： LEAD FREE, SOIC-16
文件頁數(shù)： 7/23頁
文件大小： 195K
代理商： NCP4331DR2G
NCP4331
http://onsemi.com
7
ELECTRICAL CHARACTERISTICS
(V
CC
= 20 V, V
BST
= 7 V, HB Grounded, T
J
= 0
°
C to +125
°
C, unless otherwise specified)
Symbol
Unit
Max
Typ
Min
Rating
TEMPERATURE PROTECTION
T
LIMIT
Thermal Shutdown Threshold (Note 5)
150
160
170
°
C
H
TEMP
Thermal Shutdown Hysteresis
-
50
-
°
C
V
CC
BIASING (Internal Voltage Regulator)
I
VCC-max
Regulator Current Limitation
-
60
-
mA
V
DD
V
DD
Voltage @ V
CC
= 20 V and I
VDD
= 20 mA
7.0
7.5
8.0
V
V
DROP
Voltage Drop Between the V
CC
and V
DD
Pin @ I
VCC
= 20 mA
-
0.17
1.0
V
I
CC
Operating Consumption:
No Switching (Fault Mode)
Switching (100 kHz)
-
-
1.5
2.0
1.9
4.0
mA
V
DD
MANAGEMENT
UVD
H
Undervoltage Lockout Threshold (V
DD
rising)
5.3
6.0
6.7
V
UVD
L
Undervoltage Lockout Threshold (V
DD
falling)
5.0
5.6
6.2
V
H
UVD
Undervoltage Lockout Hysteresis
300
400
-
mV
3. The risetime is the time needed by the drive to go from 10% to 90% of the supply voltage. The fall time is the time required by the drive
to drop from 90% to 10% of its supply voltage. These times are not tested in production but only guaranteed by design.
4. Guaranteed by design. Tested through the R
RESET
parameter.
5. Guaranteed by characterization and design.
6. This delay is specified with the HB pin being grounded. In typical application where the HB node is pulsing, the delay is 70 ns typically
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