Datasheet > 电源电路 > 开关式稳压器或控制器> 5962-9958302QPA

5962-9958302QPA

更新时间： 2024-01-20 04:10:21

品牌	Logo	应用领域
德州仪器 - TI		稳压器开关式稳压器或控制器电源电路开关式控制器
页数	文件大小	规格书
32页	705K
描述
PULSE-WIDTH-MODULATION CONTROL CIRCUITS

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技术参数
数据手册

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5962-9958302QPA 技术参数

生命周期：	Active	零件包装代码：	DIP
包装说明：	DIP,	针数：	8
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.29
模拟集成电路 - 其他类型：	SWITCHING CONTROLLER	控制模式：	VOLTAGE-MODE
控制技术：	PULSE WIDTH MODULATION	最大输入电压：	40 V
最小输入电压：	3.6 V	标称输入电压：	6 V
JESD-30 代码：	R-GDIP-T8	JESD-609代码：	e0
长度：	9.58 mm	功能数量：	1
端子数量：	8	最高工作温度：	125 °C
最低工作温度：	-55 °C	最大输出电流：	0.1 A
封装主体材料：	CERAMIC, GLASS-SEALED	封装代码：	DIP
封装形状：	RECTANGULAR	封装形式：	IN-LINE
峰值回流温度（摄氏度）：	NOT APPLICABLE	认证状态：	Qualified
筛选级别：	MIL-PRF-38535 Class Q	座面最大高度：	5.08 mm
表面贴装：	NO	切换器配置：	SINGLE
最大切换频率：	500 kHz	温度等级：	MILITARY
端子面层：	TIN LEAD	端子形式：	THROUGH-HOLE
端子节距：	2.54 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT APPLICABLE	宽度：	7.62 mm

5962-9958302QPA 数据手册

TL5001, TL5001A

PULSE-WIDTH-MODULATION CONTROL CIRCUITS

SLVS084F – APRIL 1994 – REVISED JANUARY 2002

dead-time control (DTC) (continued)

1250 D V

max – V

osc

min

osc

min

osc

Where

and R are in ohms, D in decimal

Soft start can be implemented by paralleling the DTC resistor with a capacitor (C ) as shown in Figure 2. During

soft start, the voltage at DTC is derived by the following equation:

–t R

DT DT

–e

DT DT

DTC

TL5001/A

Figure 2. Soft-Start Circuit

If the dc-to-dc converter must be in regulation within a specified period of time, the time constant, R

, should

DT DT

be t /3 to t /5. The TL5001/A remains off until V ≈ 0.7 V, the minimum ramp value. C is discharged every time

UVLO or SCP becomes active.

undervoltage-lockout (UVLO) protection

Theundervoltage-lockoutcircuitturnstheoutputtransistoroffandresetstheSCPlatchwheneverthesupplyvoltage

drops too low (approximately 3 V at 25°C) for proper operation. A hysteresis voltage of 200 mV eliminates false

triggering on noise and chattering.

short-circuit protection (SCP)

The TL5001/A includes short-circuit protection (see Figure 3), which turns the power switch off to prevent damage

when the converter output is shorted. When activated, the SCP prevents the switch from being turned on until the

internal latching circuit is reset. The circuit is reset by reducing the input voltage until UVLO becomes active or until

the SCP terminal is pulled to ground externally.

When a short circuit occurs, the error-amplifier output at COMP rises to increase the power-switch duty cycle in an

attempt to maintain the output voltage. SCP comparator 1 starts an RC timing circuit when COMP exceeds 1.5 V.

If the short is removed and the error-amplifier output drops below 1.5 V before time out, normal converter operation

continues. If the fault is still present at the end of the time-out period, the timer sets the latching circuit and turns

off the TL5001/A output transistor.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

1 2 345 6 7...32

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5962-9958401Q2A	TI	SUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS	获取价格
5962-9958401QEA	TI	SUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS	获取价格
5962-9958501Q9A	ACTEL	Field Programmable Gate Array, 36000 Gates, 2414-Cell, CMOS, DIE-253	获取价格
5962-9958501Q9X	ACTEL	Field Programmable Gate Array, 36000 Gates, CMOS, DIE-253	获取价格
5962-9958501QXC	ACTEL	Field Programmable Gate Array, 36000 Gates, 2414-Cell, CMOS, CQFP256, CERAMIC, QFP-256	获取价格
5962-9958501QYC	ACTEL	Field Programmable Gate Array, 36000 Gates, 2414-Cell, CMOS, CQFP208, CERAMIC, QFP-208	获取价格

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