Datasheet > 电源电路 > 开关式稳压器或控制器> 5962-8768102VEA

5962-8768102VEA

更新时间： 2024-01-07 16:33:10

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
15页	302K
描述
High Speed PWM Controller

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技术参数
数据手册

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5962-8768102VEA 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.84
Is Samacsys：	N	模拟集成电路 - 其他类型：	SWITCHING CONTROLLER
控制模式：	CURRENT-MODE	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	20 V	最小输入电压：	8.8 V
JESD-30 代码：	S-CQCC-N20	功能数量：	1
端子数量：	20	最高工作温度：	125 °C
最低工作温度：	-55 °C	最大输出电流：	2.2 A
封装主体材料：	CERAMIC, METAL-SEALED COFIRED	封装形状：	SQUARE
封装形式：	CHIP CARRIER	认证状态：	Not Qualified
表面贴装：	YES	切换器配置：	PUSH-PULL
最大切换频率：	1000 kHz	技术：	BIPOLAR
温度等级：	MILITARY	端子形式：	NO LEAD
端子位置：	QUAD	Base Number Matches：	1

5962-8768102VEA 数据手册

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SLUS334C − AUGUST 1995 − REVISED AUGUST 2004

UVLO, SOFT-START AND FAULT MANAGEMENT

Soft-start is programmed by a capacitor on the SS pin. At power up, SS is discharged. When SS is low, the error amplifier

output is also forced low. While the internal 9-µA source charges the SS pin, the error amplifier output follows until closed

loop regulation takes over.

Anytime ILIM exceeds 1.2 V, the fault latch is set and the output pins are driven low. The soft-start cap is then discharged

by a 250-µA current sink. No more output pulses are allowed until soft-start is fully discharged and ILIM is below 1.2 V. At

this point the fault latch resets and the chip executes a soft-start.

Should the fault latch get set during soft-start, the outputs are immediately terminated, but the soft-start capacitor does not

discharge until it has been fully charged first. This results in a controlled hiccup interval for continuous fault conditions.

UDG−95106

Figure 5. Soft-Start and Fault Waveforms

ACTIVE LOW OUTPUTS DURING UVLO

The UVLO function forces the outputs to be low and considers both VCC and VREF before allowing the chip to operate.

UDG−95108

UDG−95106

Figure 6. Output Voltage vs Output Current

Figure 7. Output V and I During UVLO

1...5 6 789 10 11...15

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