参数资料
| 型号： | NCP1282BDR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 7/22页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST FLYBK VM 16SOIC |
| 标准包装： | 1 |
| PWM 型： | 电压模式 |
| 输出数： | 2 |
| 频率 - 最大： | 1MHz |
| 占空比： | 85% |
| 电源电压： | 8.5 V ~ 20 V |
| 降压： | 无 |
| 升压： | 是 |
| 回扫： | 是 |
| 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-SOIC（0.154"，3.90mm 宽） |
| 包装： | 剪切带 (CT) |
| 其它名称： | NCP1282BDR2GOSCT |
NCP1282
ELECTRICAL CHARACTERISTICS (continued) (V in = 48 V, V AUX = 12 V, V UVOV = 2.3 V, V EA = open, V CSKIP = 0 V,
V CS = 0 V, V SS = open, R T = 13.7 k Ω , C AUX = 10 m F, C T = 470 pF, C out1 = C out2 = 100 pF, C UVOV = 0.01 m F, C CSKIP = 6800 pF,
R D = 25 k Ω , R SYNC = 5.0 k Ω , C REF = 0.1 m F, R FF = 29.4 k Ω , C FF = 470 pF. For typical values T J = 25 ? C, for min/max values, T J is – 40 ? C to
125 ? C, unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
SYNCHRONIZATION
Output Pulse Width
Output Voltage High (R SYNC = ∞ )
Sync Threshold Voltage (Note 5)
Sync Input Pulse Width (V SYNC = 3.5 V)
Maximum Sync Frequency (Note 5)
Source Current (Note 5)
t O(SYNC)
V H(SYNC)
V SYNC
t SYNC
f SYNC
I SYNC(D)
70
–
3.5
--
–
–
122
4.3
–
–
–
1.0
--
–
–
t O(SYNC)min
1.0
–
ns
V
V
ns
MHz
mA
SOFT-- START/STOP
Charge Current (V SS = 1.6 V)
Discharge Current (V UVOV = 0 V, V SS = 1.6 V)
Soft--Stop Reset Voltage (V FF = 0 V)
I SS(C)
I SS(D)
V reset(SS)
15
70
–
20
100
115
30
130
--
m A
m A
mV
OUTPUTS
Overlap Time Delay (Tested at 50% of Waveform)
R D = 25 k Ω
Leading
Trailing
t D(leading)
t D(trailing)
37
72
53
99
--
--
ns
Output Voltage (I OUT = 0 mA, Note 5)
V
Low State
High State
V OL
V OH
–
11.8
–
–
0.25
–
Drive Resistance (FT ONLY)
OUT1 Sink (V RTCT = 4.0 V, V out1 = 1 V)
R SNK1
Ω
T J = 25 ? C
T J = –40 ? C to 125 ? C
OUT1 Source (V RTCT = 2.5 V, V out1 = 11 V)
T J = 25 ? C
T J = –40 ? C to 125 ? C
OUT2 Sink (V RTCT = 4.0 V, V out2 = 1 V)
T J = 25 ? C
T J = –40 ? C to 125 ? C
OUT2 Source (V RTCT = 2.5 V, V out2 = 11 V)
T J = 25 ? C
T J = –40 ? C to 125 ? C
Rise Time (10% to 90%, C out1 = 2200 pF, C out2 = 220 pF)
R SRC1
R SNK2
R SRC2
–
–
–
–
–
–
–
–
2.9
–
4.6
–
11.6
–
11.8
–
3.6
5.03
5.75
7.45
12.7
20.0
13.5
20
ns
OUT1
OUT2
t r1
t r2
–
–
26
19
–
–
Fall Time (90% to 10%, C out1 = 2200 pF, C out2 = 220 pF)
ns
OUT1
OUT2
t f1
t f2
–
–
10
10
–
–
PWM COMPARATOR
Input Resistance
Lower Input Threshold
Delay to Output (From V OH to 0.5 V OH )
R IN(VEA)
V EA(L)
t PWM
11
0.48
–
26
0.84
100
58
1.04
–
k Ω
V
ns
5. Guaranteed by design only.
http://onsemi.com
7
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