TEA1742T/N1,118 NXP Semiconductors, TEA1742T/N1,118 Datasheet - Page 5

• Manufacturer Part Number: TEA1742T/N1,118
• Description: IC CTRLR GREENCHIP PFC 8-SOIC
• Manufacturer: NXP Semiconductors
• Series: GreenChip™r

Specifications of TEA1742T/N1,118

• Mode: Continuous Conduction (CCM)
• Frequency - Switching: 125kHz
• Current - Startup: 60µA
• Voltage - Supply: 10.6 V ~ 38 V
• Operating Temperature: -20°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935288647118

NXP Semiconductors
7. Functional description
TEA1742T_1
Objective data sheet
7.1.1 Start-up and UnderVoltage LockOut (UVLO)
7.1 General control
The TEA1742T contains a controller for a power factor correction circuit. A typical
configuration is shown in
The control logic activates the internal circuitry when the voltage on pin V
V
soft start capacitor on the PFCSENSE pin is charged, the PFC circuit is activated. See
Figure
When one of the protection functions is activated, the converter stops switching. For a
restart protection the V
latched protection (OTP), the V
Fig 3.
startup
4.
level. First, the soft start capacitor on the PFCSENSE pin is charged. When the
Typical configuration
Rev. 01 — 10 February 2009
CC
Figure
has to be pulled below V
CC
3.
has to drop below about 4 V (typ).
4
3
2
7
th(UVLO)
6
TEA1742T
1
5
to reset the protection. For a
GreenChip PFC controller
8
014aaa736
TEA1742T
V
© NXP B.V. 2009. All rights reserved.
CC
CC
passes the
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