参数资料
型号: TPS5102IDBTRG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 3 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO30
封装: GREEN, PLASTIC, TSSOP-30
文件页数: 13/34页
文件大小: 1182K
代理商: TPS5102IDBTRG4
TPS5102
DUAL, HIGH-EFFICIENCY CONTROLLER FOR NOTEBOOK PC POWER
SLVS239 - SEPTEMBER 1999
20
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
Phase
Margin
Phase
Gain
Crossover
Gain
Margin
54
–2
–44
–100
96
166
f – Frequency – Hz
180
152
138
124
110
82
68
40
26
12
–16
–30
–58
–72
–86
10
100
103
104
105
106
20 Log (Loop-Gain)
180 + Phase
synchronization
Some applications require switching clock synchronization. There are two methods that can be used for
synchronization: the triangle wave synchronization and the square wave synchronization.
The triangle wave synchronization is displayed below:
740 mV
Ct
Rt
TPS5102
It can be seen that both Rt and Ct are removed from the circuit. Therefore, two components are saved. This
method is good for the synchronization between two controllers. If the controller needs to be synchronized with
a digital circuit such as DSP, the square-type clock signal is usually used. The configuration exhibited below is
for this type of application:
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