参数资料
型号: NCP5425DB
厂商: ON Semiconductor
文件页数: 5/22页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 20TSSOP
产品变化通告: Product Obsolescence 14/Apr/2010
标准包装: 75
PWM 型: 电压模式
输出数: 2
频率 - 最大: 938kHz
占空比: 100%
电源电压: 4.75 V ~ 13.2 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: 0°C ~ 125°C
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)
包装: 管件
NCP5425
ELECTRICAL CHARACTERISTICS (continued) (0 ° C < T J < 125 ° C; R OSC = 30.9 k, C COMP1,2 = 0.1 m F, 4.75 V < V CC
< 13.2 V; 10.8 V < BST < 20 V, C GATE(H)1,2 = C GATE(L)1,2 = 1.0 nF; unless otherwise specified.)
Characteristic
Test Condition
Min
Typ
Max
Unit
OSCILLATOR
Switching Frequency
Switching Frequency
Switching Frequency
R OSC Voltage
Phase Difference
Low Noise Disable
R OSC = 61.9 k; Measure GATE(H)1
R OSC = 30.9 k; Measure GATE(H)1
R OSC = 11.8 k; Measure GATE(H)1
R OSC = 30.9 k
?
Guaranteed By Design
112
224
562
0.970
?
?
150
300
750
1.000
180
3.1
188
376
938
1.030
?
3.5
kHz
kHz
kHz
V
°
V
OVERCURRENT PROTECTION
OVC Comparator Offset Voltage
0 V < IS+1(2) < 5.5 V
55
70
85
mV
0 V < IS?1(2) < 5.5 V
IS+1(2) Bias Current
IS?1(2) Bias Current
OVC Common Mode Range
0 V < IS+1(2) < 5.5 V
0 V < IS?1(2) < 5.5 V
?
?1.0
?1.0
0
0.1
0.1
?
1.0
1.0
5.5
m A
m A
V
SUPPLY CURRENTS
V CC Current
BST Current
COMP = 0 V (No Switching)
COMP = 0 V (No Switching)
?
?
16
3.5
22
6.0
mA
mA
UNDERVOLTAGE LOCKOUT
Start Threshold
Stop Threshold
Hysteresis
GATE(H) Switching; COMP1(2) Charging
GATE(H) Not Switching; COMP1(2) Discharging
Start?Stop
3.8
3.6
0.1
4.2
4.0
0.2
4.6
4.4
0.45
V
V
V
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