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| 型号： | TEA1530AT/N2/DG,11 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 7/21页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR SMPS GREEN OVP 8SOIC |
| 标准包装： | 2,500 |
| 系列： | GreenChip™ II |
| 输出隔离： | 隔离 |
| 频率范围： | 50kHz ~ 75kHz |
| 输入电压： | 9.3 V ~ 20 V |
| 输出电压： | 650V |
| 功率（瓦特）： | 500mW |
| 工作温度： | -20°C ~ 145°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 带卷 (TR) |
NXP Semiconductors
TEA1530T/AT/AP
GreenChip II SMPS control IC
7.5 Cycle skipping
At very low power levels, a cycle skipping mode activates. An internal control voltage
(V sense(max) ) lower than 25 mV will inhibit switch-on of the external power MOSFET until
7.6 Continuous Conduction Mode (CCM)
The IC operates in Fixed Frequency Continuous Conduction Mode (FF CCM). Pin DRAIN
7.7 OverCurrent Protection (OCP)
The primary peak current in the transformer is measured accurately cycle-by-cycle using
the external sense resistor R sense . The OCP circuit limits the voltage on pin SENSE to an
internal level equal to 1.5 V ? V CTRL (see also Section 7.3 ). The OCP detection is
suppressed during the leading edge blanking period, t leb to prevent false triggering caused
by the switch-on spikes.
7.8 Control pin protection
If pin CTRL becomes open-circuit or is disconnected, a fault condition is assumed and the
converter will stop switching immediately. Operation recommences when the fault
condition is removed.
7.9 Adjustable slope compensation
A slope compensation function has been added at pin CTRL; see Figure 6 . The slope
compensation function prevents subharmonic oscillation in CCM at duty cycles over 50 %.
The CTRL voltage is modulated by sourcing a (non-constant) current out of pin CTRL and
by adding externally a series resistor R slopecomp . This increases the CTRL voltage
proportionally with the on-time, which therefore limits the OCP level. A longer on-time
results in a higher CTRL voltage, this increase in CTRL voltage will decrease the on-time.
Slope compensation can be adjusted by changing the value of R slopecomp . Slope
compensation prevents modulation of the on-time (duty cycle) while operating in FF CCM.
A possible drawback of subharmonic oscillation can be output voltage ripple.
TEA1530T_AT_AP_1
? NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 01 — 30 June 2008
7 of 21
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TEA1530T | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:GreenChip II SMPS control IC |
| TEA1530T/N2,118 | 功能描述:开关变换器、稳压器与控制器 TEA1530T/SO8/REEL13//N2 RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TEA1532 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:GreenChip SMPS control IC |
| TEA1532AP/N1,112 | 功能描述:开关变换器、稳压器与控制器 GREENCHIP 2 RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TEA1532APN | 功能描述:开关变换器、稳压器与控制器 GREENCHIP 2 RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
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