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| 型号： | TEA1733LT/N1,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 14/21页 |
| 文件大小： | 0K |
| 描述： | IC CTLR SMPS SW SO8 |
| 标准包装： | 1 |
| 系列： | GreenChip™ |
| 输出隔离： | 隔离 |
| 频率范围： | 62kHz ~ 71kHz |
| 输入电压： | 12 V ~ 30 V |
| 输出电压： | 9 V ~ 12 V |
| 功率（瓦特）： | 500mW |
| 工作温度： | -40°C ~ 150°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 标准包装 |
| 相关产品： | 732-2243-ND - TRANS FLYBACK NXP TEA1733 4.0MH 732-2242-ND - TRANS FLYBACK NXP TEA1733 2.2MH |
| 其它名称： | 568-5346-6 |
NXP Semiconductors
TEA1733LT
GreenChip SMPS control IC
Table 5. Characteristics …continued
T amb = 25 ? C; V CC = 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into
the IC; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Soft start (pin ISENSE)
I start(soft)
soft start current
? 63
? 55
? 47
? A
V start(soft)
soft start voltage
V CTRL = 4 V; enable
-
V sense(max)
-
V
voltage
R start(soft)
soft start resistance
12
-
-
k ?
Driver (pin DRIVER)
I source(DRIVER)
source current on pin
V DRIVER = 2 V
-
? 0.3
? 0.25
A
DRIVER
I sink(DRIVER)
V O(DRIVER)max
sink current on pin DRIVER V DRIVER = 2 V
V DRIVER = 10 V
maximum output voltage on
0.25
0.6
9
0.3
0.75
10.5
-
-
12
A
A
V
pin DRIVER
Temperature protection
T pl(IC)
IC protection level
130
140
150
? C
temperature
[1]
The clamp voltage on the PROTECT pin is lowered when the IC is in power-down (latched or restart protection).
11. Application information
A power supply with the TEA1733LT/N1 is a flyback converter operating in Continuous
conduction mode (See Figure 11 ).
Capacitor C5 buffers the IC supply voltage, which is powered via resistor R3 at start-up
and via the auxiliary winding during normal operation. Sense resistor R9 converts the
current through the MOSFET S1 into a voltage on pin ISENSE. The value of R9 defines
the maximum primary peak current on MOSFET S1. Resistor R7 reduces the peak
current to capacitor C5.
In the example shown in Figure 11 , the PROTECT pin is used for OVP and OTP. The OVP
level is set by diode Z1 to V CC = 25.8 V. The OTP level is set by Negative Temperature
Coefficient (NTC) resistor R4. The VINSENSE pin is used for mains voltage detection and
resistors R1 and R2 set the start voltage to about 80 V (AC). The overpower protection
time is defined by capacitor C4 is set at 60 ms.
The restart time is defined by capacitor C4 and resistor R8 at 0.5 s.
Resistor R6 and capacitor C6 define the soft start time. Resistor R5 prevents the soft start
capacitor C6 from being charged during normal operation caused by negative voltage
spikes across the current sense resistor R9.
Capacitor C3 reduces noise on the CTRL pin.
See the application note for more information ( Ref. 1 ).
TEA1733LT
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 16 July 2013
? NXP B.V. 2013. All rights reserved.
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| TEA1733MT | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:GreenChip SMPS control IC Adjustable overpower time-out |
| TEA1733MT/N2,118 | 功能描述:DC/DC 开关控制器 GREENCHIP SMPS CONTROL IC 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 |
| TEA1733P/N1,112 | 功能描述:DC/DC 开关控制器 GREENCHIP SMPS CONTROL IC 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 |
| TEA1733T | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:GreenChip SMPS control IC |
| TEA1733T/DB/65W,598 | 制造商:NXP Semiconductors 功能描述:- Boxed Product (Development Kits) 制造商:NXP Semiconductors 功能描述:TEA1733 65W reference design 制造商:NXP Semiconductors 功能描述:TEA1733T/DB/65W,598 |
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