参数资料
型号: NCP1271D100R2G
厂商: ON Semiconductor
文件页数: 5/21页
文件大小: 0K
描述: IC CTRLR PWM CM OVP OTP HV 7SOIC
标准包装: 1
系列: Soft-Skip™
输出隔离: 隔离
频率范围: 85kHz ~ 107kHz
输入电压: 10 V ~ 20 V
工作温度: -40°C ~ 125°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)7 引线
供应商设备封装: 7-SOIC
包装: 标准包装
其它名称: NCP1271D100R2GOSDKR
NCP1271
ELECTRICAL CHARACTERISTICS (For typical values T J = 25 ° C, for min/max values, T J = ? 40 ° C to +125 ° C, V CC = 14 V,
HV = open, skip = open, FB = 2 V, CS = Ground, DRV = 1 nF, unless otherwise noted.)
Characteristic
Pin
Symbol
Min
Typ
Max
Unit
OSCILLATOR
Oscillation Frequency (65 kHz Version, T J = 25 _ C)
Oscillation Frequency (65 kHz Version, T J = ? 40 to + 85 _ C)
Oscillation Frequency (65 kHz Version, T J = ? 40 to + 125 _ C)
Oscillation Frequency (100 kHz Version, T J = 25 _ C)
Oscillation Frequency (100 kHz Version, T J = ? 40 to +85 _ C)
Oscillation Frequency (100 kHz Version, T J = ? 40 to +125 _ C)
Oscillator Modulation Swing, in Percentage of f osc
Oscillator Modulation Swing Period
Maximum Duty Cycle (V CS = 0 V, V FB = 2.0 V)
5
5
5
5
f osc
?
?
D max
61.75
58
55
95
89
85
?
?
75
65
65
65
100
100
100
" 7.5
6.0
80
68.25
69
69
105
107
107
?
?
85
kHz
%
ms
%
GATE DRIVE
Gate Drive Resistance
Output High (V CC = 14 V, Drv = 300 W to Gnd)
Output Low (V CC = 14 V, Drv = 1.0 V)
Rise Time from 10% to 90% (Drv = 1.0 nF to Gnd)
Fall Time from 90% to 10% (Drv = 1.0 nF to Gnd)
5
5
5
R OH
R OL
t r
t f
6.0
2.0
?
?
11
6.0
30
20
20
12
?
?
W
ns
ns
CURRENT SENSE
Maximum Current Threshold
Soft ? Start Duration
Soft ? Skip Duration
Leading Edge Blanking Duration
Propagation Delay (Drv =1.0 nF to Gnd)
Ramp Current Source Peak
Ramp Current Source Valley
3
?
?
3
?
3
3
I Limit
t SS
t SK
t LEB
?
I ramp(H)
I ramp(L)
0.95
?
?
100
?
?
?
1.0
4.0
300
180
50
100
0
1.05
?
?
330
150
?
?
V
ms
m s
ns
ns
m A
m A
SKIP
Default Standby Skip Threshold (Pin 1 = Open)
Skip Current (Pin 1 = 0 V, T J = 25 _ C)
Skip Level Reset (Note 5)
Transient Load Detection Level to Disable Soft ? Skip Mode
2
1
1
2
V skip
I skip
V skip ? reset
V TLD
?
26
5.0
2.6
1.2
43
5.7
2.85
?
56
6.5
3.15
V
m A
V
V
EXTERNAL LATCH
Latch Protection Threshold
Latch Threshold Margin (V latch ? m = V CC(off) ? V latch )
Noise Filtering Duration
Propagation Delay (Drv = 1.0 nF to Gnd)
1
1
1
1
V latch
V latch ? m
?
T latch
7.1
0.6
?
?
8.0
1.2
13
100
8.7
?
?
?
V
V
m s
ns
SHORT ? CIRCUIT FAULT PROTECTION
Time for Validating Short ? Circuit Fault Condition
2
t protect
?
130
?
ms
5. Please refer to Figure 39 for detailed description.
6. Guaranteed by design.
http://onsemi.com
5
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