TEA1713T/N1,518 NXP Semiconductors, TEA1713T/N1,518 Datasheet - Page 7

• Manufacturer Part Number: TEA1713T/N1,518
• Description: IC CTLR RESONANT PFC 24SOIC
• Manufacturer: NXP Semiconductors

Specifications of TEA1713T/N1,518

• Package / Case: *
• Mounting Type: *
• Frequency - Switching: 125kHz
• Mode: Discontinuous Conduction (DCM)
• Switching Frequency: 125 KHz
• Maximum Power Dissipation: 0.8 W
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 55 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Operating Temperature: -
• Current - Startup: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 935289598518

NXP Semiconductors
TEA1713T
Product data sheet
7.2.2 Regulated supply (pin SUPREG)
7.2.3 High-side driver floating supply (pin SUPHS)
Pin SUPIC has a low short-circuit detection voltage (V
dissipated in the HV start-up source is limited while V
Section
The voltage range on pin SUPIC exceeds that of the gate voltages of the external
MOSFETs. For this reason, the TEA1713 contains an integrated series stabilizer. The
series stabilizer creates an accurate regulated voltage (V
buffer capacitor C
The SUPREG series stabilizer is enabled after C
ensures that any optional external circuitry connected to SUPREG will not dissipate any of
the start-up current.
To ensure that the external MOSFETs receive sufficient gate drive current, the voltage on
SUPREG must reach V
before the IC starts operating.
SUPREG is provided with undervoltage protection (UVP-SUPREG; see
When V
The high-side driver is supplied by an external bootstrap buffer capacitor, C
bootstrap capacitor is connected between the high-side reference pin HB and the
high-side driver supply input pin SUPHS. C
•
•
•
•
•
•
•
•
Boost charge state
The PFC controller is switching; the HBC controller is off. The current from the high
voltage start-up source is large enough to supply SUPIC (current consumption <
I
Operational supply state
Both the PFC and HBC controllers are switching. Current consumption is I
When the HBC controller is enabled, the switching frequency will be high initially and
the current consumption of the HBC MOSFET drivers will be dominant. The stored
energy in C
takes over.
supply the internal PFC driver
supply the internal low-side HBC driver
supply the internal high-side driver via external components
as a reference voltage for optional external circuits
The IC will stop operating to prevent unreliable switching because the gate driver
voltage is too low. The PFC controller will stop switching immediately, but the HBC
controller will continue until the low-side stroke is active.
The maximum current from the internal SUPREG series stabilizer is reduced to
I
the event of an overload at SUPREG while SUPIC is supplied from an external DC
source.
ch(nom)(SUPIC)
ch(red)(SUPREG)
SUPREG
7.2.4).
SUPIC
All information provided in this document is subject to legal disclaimers.
falls below V
).
SUPREG
(typ. 5.4 mA). This will reduce the dissipation in the series stabilizer in
will supply the initial SUPIC current before the SUPIC supply source
Rev. 2 — 9 February 2011
start(SUPREG)
. This stabilized voltage is used to:
uvp(SUPREG)
(and the voltage on SUPIC must reach the start level)
(typ. 10.3 V), two events will be triggered:
Resonant power supply control IC with PFC
SUPHS
SUPIC
is charged from pin SUPREG via an
SUPIC
scp(SUPIC)
has been fully charged. This
reg(SUPREG)
< V
scp(SUPIC)
; typ. 0.65 V). The current
TEA1713T
; typ. 10.9 V) at the
© NXP B.V. 2011. All rights reserved.
Section
(see
SUPHS
oper(SUPIC)
7.9).
. The
7 of 47
.