参数资料
型号: NCV8843PWG
厂商: ON Semiconductor
文件页数: 4/16页
文件大小: 0K
描述: IC REG BUCK 1.5A 16SOIC
标准包装: 47
类型: 降压(降压)
输出数: 1
输入电压: 4.5 V ~ 40 V
PWM 型: 混合物
频率 - 开关: 340kHz
电流 - 输出: 1.5A
同步整流器:
工作温度: -40°C ~ 150°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.295",7.50mm 宽)裸露焊盘
包装: 管件
供应商设备封装: 16-SOIC W
NCV8843
ELECTRICAL CHARACTERISTICS ( ? 40 ° C < T J < 150 ° C, 4.5 V< V IN < 40 V; unless otherwise specified.)
Characteristic
Test Conditions
Min
Typ
Max
Unit
Oscillator
Operating Frequency
Frequency Line Regulation
Maximum Duty Cycle
V FB Frequency Foldback Threshold
?
?
?
?
306
?
85
0.29
340
0.05
90
0.32
374
0.15
95
0.36
kHz
%/V
%
V
PWM Comparator
Slope Compensation Voltage
Minimum Output Pulse Width
Fix V FB, D V C / D T ON
V FB to V SW
11
?
22
100
34
200
mV/ m s
ns
Power Switch
Current Limit
Foldback Current
Saturation Voltage
Current Limit Delay
V FB > 0.36 V
V FB < 0.29 V
I OUT = 1.5 A, V BOOST = V IN + 2.5 V
(Note 5)
1.6
0.9
0.4
?
2.3
1.5
0.7
120
3.0
2.1
1.0
160
A
A
V
ns
Error Amplifier
Internal Reference Voltage
Reference PSRR
FB Input Bias Current
Output Source Current
Output Sink Current
Output High Voltage
Output Low Voltage
Unity Gain Bandwidth
Open Loop Amplifier Gain
Amplifier Transconductance
?
(Note 5)
?
V C = 1.270 V, V FB = 1.0 V
V C = 1.270 V, V FB = 2.0 V
V FB = 1.0 V
V FB = 2.0 V
(Note 5)
(Note 5)
(Note 5)
1.244
?
?
15
15
1.39
5.0
?
?
?
1.270
40
0.02
25
25
1.46
20
500
70
6.4
1.296
?
0.1
35
35
1.53
60
?
?
?
V
dB
m A
m A
m A
V
mV
kHz
dB
mA/V
Sync
Sync Frequency Range
Sync Pin Bias Current
Sync Threshold Voltage
V SYNC = 5.0 V
?
?
377
?
0.9
?
360
1.5
710
485
1.9
kHz
m A
V
Shutdown
Shutdown Threshold Voltage
SHDNB Input Current
V in = 5.0 V (Note 5)
?
1.0
?
1.3
4.0
1.6
?
V
m A
Thermal Shutdown
Overtemperature Trip Point
Thermal Shutdown Hysteresis
(Note 5)
(Note 5)
175
?
185
42
195
?
° C
° C
5. Guaranteed by design, not 100% tested in production.
http://onsemi.com
4
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