参数资料
型号: ISL6445IAZ-TK
厂商: Intersil
文件页数: 6/15页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 24-QSOP
标准包装: 1
PWM 型: 电流模式
输出数: 2
频率 - 最大: 1.55MHz
占空比: 73%
电源电压: 4.5 V ~ 24 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 24-SSOP(0.154",3.90mm 宽)
包装: 标准包装
其它名称: ISL6445IAZ-TKDKR
ISL6445
Typical Performance Curves
3.40
3.39
3.38
3.37
3.36
3.35
3.34
3.33
3.32
3.31
3.30
Oscilloscope plots are taken using the ISL6445EVAL Evaluation Board.
3.40
3.39
3.38
3.37
3.36
3.35
3.34
3.33
3.32
3.31
3.30
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
LOAD CURRENT (A)
FIGURE 1. PWM1 LOAD REGULATION
0.85
0.84
0.83
0.82
0.81
0.80
0.79
0.78
0.77
0.76
LOAD CURRENT (A)
FIGURE 2. PWM2 LOAD REGULATION
PGOOD 5V/DIV
V OUT3 2V/DI V
V OUT2 2V/DI V
0.75
-40
-20
0
20 40
60
80
V OUT1 2V/DI V
TEMPERATURE (°C)
FIGURE 3. REFERENCE VOLTAGE VARIATION OVER
TEMPERATURE
V OUT1 20mV/DIV, AC COUPLED
I L1 0.5A/DIV, AC COUPLED
PHASE1 10V/DIV
FIGURE 5. PWM1 WAVEFORMS
6
FIGURE 4. SOFT-START WAVEFORMS WITH PGOOD
V OUT2 20mV/DIV, AC COUPLED
I L2 0.5A/DIV, AC COUPLED
PHASE2 10V/DIV
FIGURE 6. PWM2 WAVEFORMS
FN9230.1
June 3, 2008
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