- 您现在的位置：买卖IC网 > PDF目录98066 > PWM5032-DIE 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, UUC PDF资料下载
参数资料
| 型号： | PWM5032-DIE |
| 元件分类： | 稳压器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, UUC |
| 封装： | DIE |
| 文件页数： | 18/19页 |
| 文件大小： | 220K |
| 代理商： | PWM5032-DIE |
8
SCD5031 Rev J 4/4/08
Aeroflex Plainview
OSCILLATOR
The chip uses two precision current mirrors that alternately charge and discharge an external capacitor to generate an
extremely linear sawtooth oscillator waveform. At the start of each cycle, the charging current, set by the choice of
resistor at the Rset pin, is 1:1 mirrored over to the Cset pin where it charges an external capacitor. When the capacitor
voltage reaches the comparator’s upper threshold (nominally VREF), the comparator switches current mirrors and begins
to discharge the external capacitor. The discharge current is set at roughly five times the charging current to result in fast
discharge and minimal Dead Time. When the voltage reaches the comparator’s lower threshold (0.9V), the comparator
switches back to the charging mirror, powers down the discharge mirror, and the whole process repeats.
The frequency is set by choosing Rset and Cset such that:
Suggested Ranges for Cset and Rset are:
50K ohms < Rset < 300K
10pf < Cset < 600pF
Rt
Ct
Rset
Cset
GND
6
7
12
F
OSC
1
0.84
R
SET
×
C
SET
×
------------------------------------------------
≈
20KHz
F
OSC
1MHz
≤≤
FIGURE 3 – Timing Resistance vs Frequency
47pF
100pF
200pF
390pF
200pF
20pF
10pF
10K
100K
Frequency Hz
RSET
Ω
160K
140K
120K
100K
80K
60K
40K
1M
Frequency Hz
300K
280K
260K
240K
220K
200K
180K
320K
相关PDF资料 |
PDF描述 |
|---|---|
| PWR-82332-300 | AC MOTOR CONTROLLER, 25 A, DFM26 |
| PWR-82332-320 | AC MOTOR CONTROLLER, 25 A, DFM26 |
| PWR-82332-310 | AC MOTOR CONTROLLER, 25 A, DFM26 |
| PWR-82332-120 | AC MOTOR CONTROLLER, 25 A, DFM26 |
| PWR-82333-330 | BRUSHLESS DC MOTOR CONTROLLER, DFM26 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PWM505 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| PWM-50-59 | 制造商:Brady Corporation 功能描述:REFILL PAGES - LEGEND: 50-59 |
| PWM510 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| PWM-6 | 制造商:Brady Corporation 功能描述: |
| PWM-60-12 | 功能描述:O/P +12V5A 制造商:mean well usa inc. 系列:PWM-60 零件状态:在售 类型:恒定电压 拓扑:AC DC 转换器 输出数:1 电压 - 输入（最小值）:90VAC 电压 - 输入（最大值）:305VAC 电压 - 输出:12V 电流 - 输出（最大值）:5A 功率（W）:60W 电压 - 隔离:3750V 调光:模拟，PWM 特性:OCP，OTP，OVP，SCP 等级:IP67 工作温度:-40°C ~ 85°C 效率:86% 端子类型:导线引线 大小/尺寸:5.91" 长 x 2.09" 宽 x 1.38" 高（150.0mm x 53.0mm x 35.0mm） 安装类型:底座安装 认可:CB，CCC，CE，cURus，ENEC 标准包装:1 |
发布紧急采购，3分钟左右您将得到回复。