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参数资料
| 型号： | NCP4331DBR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 7/22页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 16-TSSOP |
| 产品变化通告： | Product Obsolescence 19/Dec/2008 |
| 标准包装： | 2,500 |
| PWM 型： | 控制器 |
| 输出数： | 2 |
| 频率 - 最大： | 400kHz |
| 电源电压： | 最高 30V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 包装： | 带卷 (TR) |
NCP4331
ELECTRICAL CHARACTERISTICS (V CC = 20 V, V BST = 7 V, HB Grounded, T J = 0 ° C to +125 ° C, unless otherwise specified)
Symbol
Rating
Min
Typ
Max
Unit
TEMPERATURE PROTECTION
T LIMIT
H TEMP
Thermal Shutdown Threshold (Note 5)
Thermal Shutdown Hysteresis
150
-
160
50
170
-
° C
° C
V CC BIASING (Internal Voltage Regulator)
I VCC-max
V DD
V DROP
Regulator Current Limitation
V DD Voltage @ V CC = 20 V and I VDD = 20 mA
Voltage Drop Between the V CC and V DD Pin @ I VCC = 20 mA
-
7.0
-
60
7.5
0.17
-
8.0
1.0
mA
V
V
I CC
Operating Consumption:
mA
No Switching (Fault Mode)
Switching (100 kHz)
-
-
1.5
2.0
1.9
4.0
V DD MANAGEMENT
UVD H
UVD L
H UVD
Undervoltage Lockout Threshold (V DD rising)
Undervoltage Lockout Threshold (V DD falling)
Undervoltage Lockout Hysteresis
5.3
5.0
300
6.0
5.6
400
6.7
6.2
-
V
V
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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