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TEA1833TS 데이터시트 PDF




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부품번호 TEA1833TS 기능
기능 GreenChip SMPS control IC
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TEA1833TS 데이터시트, 핀배열, 회로
TEA1833TS
GreenChip SMPS control IC
Rev. 1 — 31 August 2015
Product data sheet
1. General description
The TEA1833TS is a low-cost Switched Mode Power Supply (SMPS) controller IC
intended for flyback topologies. The TEA1833TS operates in peak current and frequency
control mode. Frequency jitter has been implemented to reduce ElectroMagnetic
Interference (EMI). Slope compensation is integrated for Continuous Conduction Mode
(CCM) operation.
The TEA1833TS IC features OverPower Protection (OPP). The controller accepts an
overpower situation up to 200 % for a limited amount of time.
Mains undervoltage protection (brownin/brownout), output OverVoltage Protection (OVP),
and OverTemperature Protection (OTP) can be implemented using a minimal number of
external components.
At low-power levels, the primary peak current is set to 22 % of the maximum peak current.
The switching frequency is reduced to limit the switching losses. The combination of fixed
frequency operation at high output power and frequency reduction at low output power
provides high efficiency over the total load range.
The TEA1833TS makes the design of low-cost, highly efficient and reliable supplies
easier by requiring a minimum number of external components. The device is especially
suited for medium power applications.
2. Features and benefits
SMPS controller IC enabling low-cost applications
Large input voltage range (10.5 V to 36 V)
Integrated OverVoltage Protection (OVP) on the VCC pin
Accurate OverVoltage Protection (OVP) via the ISENSE pin
Dedicated burst mode, allowing a low VCC capacitor value
Very low supply current during start-up and restart (11 A typical)
Low supply current during normal operation (0.58 mA typical without load)
Adaptive internal overpower time-out
Overpower protection including high/low line compensation
Fixed switching frequency with frequency jitter to reduce EMI
Frequency reduction with fixed minimum peak current to maintain high efficiency at
low output power levels
Peak power operation up to 200 % by frequency increase and peak current increase
Slope compensation for CCM operation




TEA1833TS pdf, 반도체, 판매, 대치품
NXP Semiconductors
6. Pinning information
6.1 Pinning
TEA1833TS
GreenChip SMPS control IC
9&& 
 '5,9(5
*1'  ,&  ,6(16(
3527(&7 
Fig 2. TEA1833TS pin configuration
 &75/
DDD
6.2 Pin description
Table 2. Pin description
Symbol
Pin
VCC
1
GND
2
PROTECT
3
CTRL
4
ISENSE
5
DRIVER
6
Description
supply voltage
ground
protection and mains detect input
control input
current sense and accurate OVP input
gate driver output
TEA1833TS
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 31 August 2015
© NXP Semiconductors N.V. 2015. All rights reserved.
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TEA1833TS 전자부품, 판매, 대치품
NXP Semiconductors
TEA1833TS
GreenChip SMPS control IC
7.4 External overtemperature protection and mains detect input
(pin PROTECT)
The PROTECT input combines the functions of the mains voltage detection
(browin/brownout) and the external OverTemperature Protection (OTP). An internal clock
separates the period of measuring the mains voltage and the period of detecting external
OverTemperature Protection (OTP). In a typical application, the PROTECT pin is
connected to the mains via a resistor. It is connected to ground via a
Negative Temperature Coefficient (NTC) thermistor and a diode.
When measuring the mains voltage, the PROTECT pin is regulated to 0.25 V to prevent
that the external diode conducts current. The current into the PROTECT pin is measured
and stored. Once the measured current is above the brownin level, the system is allowed
to start switching. If the mains voltage is continuously below the brownout level for at least
32 ms, a brownout is detected. The system immediately stops switching and performs a
restart. The VCC capacitor is discharged to the UVLO level and then charged to Vstartup
once before switching recommences (See Figure 5).
,PDLQV
GHWHFW
EURZQLQ
EURZQRXW
PV
PV
'5,9(5
3527(&7
9VWDUWXS
9&&
9WK 89/2
DDD
Fig 5. Mains detection
When detecting the external temperature, a current of 200 A (typical) out of the
PROTECT pin flows through the external capacitor and the NTC thermistor. If the
PROTECT voltage at the end of the measuring period is below Vdet(PROTECT) for four
consecutive measuring cycles, the IC detects overtemperature. It activates a latched
protection.
TEA1833TS
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 31 August 2015
© NXP Semiconductors N.V. 2015. All rights reserved.
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부품번호상세설명 및 기능제조사
TEA1833TS

GreenChip SMPS control IC

NXP Semiconductors
NXP Semiconductors

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