Philips TEA1610T, TEA1610P Datasheet
INTEGRATED CIRCUITS
DATA SH EET
TEA1610P; TEA1610T
Zero-voltage-switching
resonant converter controller
Product specification
File under Integrated Circuits, IC11
2001 Apr 25
Philips Semiconductors Product specification
Zero-voltage-switching
resonant converter controller
FEATURES
• Integrated high voltage level-shift function
• Integrated high voltage bootstrap diode
• Transconductance error amplifier for ultra high-ohmic
regulation feedback
• Latched shut-down circuit for overcurrent and
overvoltage protection
• Low start-up current (green function)
• Adjustable minimum and maximum frequencies
• Adjustable dead time
• Undervoltage lockout.
GENERAL DESCRIPTION
The TEA1610 is a monolithic integrated circuit
implemented ina high-voltage DMOS process. The circuit
is a high voltage controller for a zero-voltage switching
resonant converter. The IC provides the drive function for
two discrete power MOSFETs in a half-bridge
configuration. It also includes a level-shift circuit, an
oscillator with accurately-programmable frequency range,
a latched shut-down function and a transconductance
error amplifier.
handbook, halfpage
V
DD
TEA1610
signal
ground
TEA1610P; TEA1610T
V
HS
bridge voltage
supply
(high side)
MOSFET
SWITCH
HALF-
BRIDGE
CIRCUIT
power ground
Fig.1 Basic configuration.
RESONANT
CONVERTER
MGU336
To guarantee an accurate 50% switching duty factor, the
oscillator signal passes through a divide-by-two flip-flop
before being fed to the output drivers.
The circuit is very flexible and enables a broad range of
applications for different mains voltages.
APPLICATIONS
• TV and monitor power supplies
• High voltage power supplies.
QUICK REFERENCE DATA
SYMBOL PARAMETER CONDITIONS MAX. UNIT
V
HS
I
GH(source)
I
GH(sink)
f
bridge(max)
; I
; I
GL(sink)
GL(source)
bridge voltage supply (high side) 600 V
gate driver source current −225 mA
gate driver sink current 300 mA
maximum bridge frequency Cf= 100 pF (see
550 kHz
Fig.10)
V
I(CM)
error amplifier common mode input voltage 2.5 V
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
NAME DESCRIPTION VERSION
TEA1610P DIP16 plastic dual in-line package; 16 leads (300 mil); long body SOT38-1
TEA1610T SO16 plastic small outline package; 16 leads; body width 3.9 mm;
SOT109-2
low stand-off height
2001 Apr 25 2
Philips Semiconductors Product specification
Zero-voltage-switching
resonant converter controller
BLOCK DIAGRAM
handbook, full pagewidth
V
DD
11
SUPPLY
BOOTSTRAP
TEA1610
reset
start/stop oscillation
shut-down
LEVEL
SHIFTER
LOGIC
TEA1610P; TEA1610T
8
V
DD(F)
HIGH SIDE
DRIVER
LOW SIDE
DRIVER
7
GH
6
SH
10
GL
4
PGND
15
SD
SGND
9
2
+
I
−
I
1
gm
ERROR
AMPLIFIER
2.5 V
5
n.c.
start-up
3
VCO
2.33 V
2
÷
×
2
REF
0.6 V
16
12
IFS CFIRS
3 V
14
V
I
charge
OSCILLATOR
I
discharge
13
MGU337
Fig.2 Block diagram.
2001 Apr 25 3
Philips Semiconductors Product specification
Zero-voltage-switching
resonant converter controller
PINNING
SYMBOL PIN DESCRIPTION
I− 1 error amplifier inverting input
I+ 2 error amplifier non-inverting input
VCO 3 error amplifier output
PGND 4 power ground
n.c. 5 not connected (high voltage spacer)
SH 6 high side switch source
GH 7 gate of the high side switch
V
DD(F)
SGND 9 signal ground
GL 10 gate of the low side switch
V
DD
IFS 12 oscillator discharge current input
CF 13 oscillator capacitor
IRS 14 oscillator charge current input
SD 15 shut-down input
V
REF
8 floatingsupply voltage for the high side
driver
11 supply voltage
16 reference voltage
handbook, halfpage
Fig.3 Pin configuration: TEA1610P.
VCO
PGND
V
DD(F)
TEA1610P; TEA1610T
−
I
n.c.
SH
GH
+
I
1
2
3
4
TEA1610P
5
6
7
8
MGU338
16
V
REF
15
SD
14
IRS
13
CF
12
IFS
11
V
DD
10
GL
9
SGND
2001 Apr 25 4
handbook, halfpage
Fig.4 Pin configuration: TEA1610T.
VCO
PGND
V
DD(F)
n.c.
SH
GH
−
I
1
+
I
2
3
4
16
V
REF
15
SD
14
IRS
13
CF
TEA1610T
5
6
7
8
MGU347
12
IFS
11
V
DD
10
GL
9
SGND
Philips Semiconductors Product specification
Zero-voltage-switching
resonant converter controller
FUNCTIONAL DESCRIPTION
Start-up
When the applied voltage at VDD reaches V
DD(initial)
Fig.5), the low side power switch is turned-on while the
high side power switch remains in the non-conducting
state. This start-up output state guarantees the initial
charging of the bootstrap capacitor (C
) used for the
boot
floating supply of the high side driver.
handbook, full pagewidth
V
DD
0
(see
TEA1610P; TEA1610T
Duringstart-up,thevoltageonthe frequency capacitor (Cf)
is zero and defines the start-up state. The output voltage
of the error amplifier is kept constant (typ. 2.5 V) and
switching starts at about 80% of the maximum frequency
at the moment pin VDD reaches the start level.
The start-up state is maintaineduntil VDDreaches the start
level (13.5 V), the oscillator is activated and the converter
starts operating.
V
DD(start)
V
DD(initial)
GH-SH
GL
0
0
t
MGT998
Fig.5 Start-up.
2001 Apr 25 5
Philips Semiconductors Product specification
Zero-voltage-switching
resonant converter controller
Oscillator
The internal oscillator is a current-controlled oscillator that
generates a sawtooth output. The frequency of the
sawtooth is determined by the external capacitor Cf and
the currents flowing into the IFS and IRS pins.
handbook, full pagewidth
CF
GH-SH
0
TEA1610P; TEA1610T
The minimum frequency and the dead time are set by the
capacitor Cf and resistors R
frequency is set by resistor R∆f(see Fig.10). The oscillator
frequency is exactly twice the bridge frequency to achieve
an accurate 50% duty factor. An overview of the oscillator
and driver signals is given in Fig.6.
and Rdt. The maximum
f(min)
GL
0
dead time (high to low) dead time (low to high)
t
MGT999
Fig.6 Oscillator and driver signals.
2001 Apr 25 6
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