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参数资料
| 型号： | TEA1612T |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO24 |
| 封装： | 7.50 MM, PLASTIC, MS-013, SOT137-1, SOP-24 |
| 文件页数： | 17/19页 |
| 文件大小： | 108K |
| 代理商： | TEA1612T |
TEA1612T_1
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 01 — 24 September 2009
7 of 19
NXP Semiconductors
TEA1612T
Zero voltage switching resonant converter controller
The Rf(min) resistor has a voltage drop of 2.4 V and its resistance denes the minimum
charge current (rising slope) of the Cf capacitor if the control current is zero. The minimum
frequency is dened by this minimum charge current (IIRS1) and the discharge current:
7.5 Maximum frequency resistor
The output voltage is regulated by changing the frequency of the half-bridge converter.
The maximum frequency is determined by the Rf resistor which is connected between
the error amplier output VCO and the oscillator current input pin IRS. The current that
ows through the Rf resistor (IIRS2) is added to the current owing through the Rf(min)
resistor. As a result, the charge current ICF increases and the oscillation frequency
increases. As the falling slope of the oscillator is constant, the relationship between the
output frequency and the charge current is not a linear function (see Figure 6 and
The maximum output voltage of the error amplier and the value of Rf determine the
maximum frequency:
I
IRS1
2.4V
R
fmin
()
-----------------
=
t
IRS1
C
f
V
Cf
×
2I
IRS1
×
--------------------------
=
f
osc min
()
1
t
no
t
IRS1
+
-------------------------
=
f
bridge min
()
f
osc min
()
2
---------------------
=
I
IRS2
V
VCO
0.6
–
Rf
---------------------------
=
t
IRS2
C
f
V
Cf
×
2I
IRS1
I
IRS2
+
()
×
---------------------------------------------
=
I
IRS2 max
()
V
VCO max
()
0.6
–
Rf
---------------------------------------
=
t
IRS min
()
C
f
V
Cf
×
2I
IRS2
I
IRS2 max
()
+
()
×
---------------------------------------------------------
=
f
osc max
()
1
T
OSC
-------------
=
f
bridge max
()
f
osc max
()
2
----------------------
=
T
OSC
t
IRS min
()
t
IFS
+
=
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TEA1612T/N1,518 | 功能描述:交流/直流开关转换器 IC RESONANT CONV CTRLR RoHS:否 制造商:STMicroelectronics 输出电压:800 V 输入/电源电压（最大值）:23.5 V 输入/电源电压（最小值）:11.5 V 开关频率:115 kHz 电源电流:1.6 mA 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:SSO-10 封装:Reel |
| TEA1613T/N1,518 | 功能描述:交流/直流开关转换器 IC CTLR RESONANT CONV RoHS:否 制造商:STMicroelectronics 输出电压:800 V 输入/电源电压（最大值）:23.5 V 输入/电源电压（最小值）:11.5 V 开关频率:115 kHz 电源电流:1.6 mA 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:SSO-10 封装:Reel |
| TEA1620P | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:STARplug |
| TEA1620P/N1,112 | 功能描述:开关变换器、稳压器与控制器 STARPLUG SMPS CNTRLR 48 OHM 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 |
| TEA1622P | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:STARplugTM |
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