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参数资料
| 型号： | TEA1506AT/N1,518 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 11/22页 |
| 文件大小： | 0K |
| 描述： | IC SMPS CONTROLLER 14-SOIC |
| 标准包装： | 1 |
| 系列： | GreenChip™ II |
| 输出隔离： | 隔离 |
| 频率范围： | 25kHz ~ 175kHz |
| 输入电压： | 8.7 V ~ 20 V |
| 输出电压： | 650V |
| 功率（瓦特）： | 750mW |
| 工作温度： | -20°C ~ 145°C |
| 封装/外壳： | 14-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 14-SO |
| 包装： | 标准包装 |
| 其它名称： | 568-3312-6 |
Philips Semiconductors
GreenChip ? II SMPS control IC
Control pin protection
If pin CTRL is open-circuit or not connected, a fault
condition is assumed and the converter will stop switching.
Operation will recommence as soon as the fault condition
is removed.
Soft start-up
handbook, halfpage
Product speci?cation
TEA1506P; TEA1506AP;
TEA1506T; TEA1506AT
ISS
To prevent transformer rattle during hiccup, the
0.5 V
start-up
transformer peak current is slowly increased by the soft
start function. This can be achieved by inserting a resistor
5 Isense
RSS
and a capacitor between pin I sense and the sense resistor
(see Fig.11). An internal current source charges the
Vocp
CSS
Rsense
capacitor to V = I SS × R SS , with a maximum of
I primary(max) = -----------------------------------------------
approximately 0.5 V.
The start level and the time constant of the increasing
primary current level can be adjusted externally by
changing the values of R SS and C SS .
V ocp – ( I SS × R SS )
R sense
τ = R SS × C SS
The charging current I SS will flow as long as the voltage on
pin I sense is below approximately 0.5 V. If the voltage on
pin I sense exceeds 0.5 V, the soft start current source will
start limiting the current I SS . At the V CC(start) level, the I SS
current source is completely switched off.
Since the soft start current I SS is supplied from pin DRAIN,
the R SS value will not affect the V CC current during start-up.
2003 Sep 09
11
MGU237
Fig.11 Soft start.
Driver
The driver circuit to the gate of the power MOSFET has a
current sourcing capability of 135 mA typical and a current
sink capability of 560 mA typical. This permits fast turn-on
and turn-off of the power MOSFET for efficient operation.
A low driver source current has been chosen to limit the
? V/ ? t at switch-on. This reduces Electro Magnetic
Interference (EMI) and also limits the current spikes
across R sense .
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TEA1506P | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:GreenChip SMPS control IC |
| TEA1506P/N1,112 | 功能描述:DC/DC 开关控制器 GREENCHIP 2 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| TEA1506PN | 功能描述:DC/DC 开关控制器 GREENCHIP 2 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| TEA1506T | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:GreenChip SMPS control IC |
| TEA1506T/N1,118 | 功能描述:DC/DC 开关控制器 IC CTLR SMPS PS SW MODE RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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