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STSR2P

Description
3.5 A HALF BRDG BASED MOSFET DRIVER, PDSO8
Categorysemiconductor    Analog mixed-signal IC   
File Size192KB,12 Pages
ManufacturerSTMicroelectronics
Websitehttp://www.st.com/
Download Datasheet Parametric Compare View All

STSR2P Overview

3.5 A HALF BRDG BASED MOSFET DRIVER, PDSO8

STSR2P Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals8
Minimum operating temperature-40 Cel
Maximum operating temperature125 Cel
Processing package descriptionSOP-8
each_compliYes
EU RoHS regulationsYes
stateActive
Interface TypeHALF BRIDGE BASED MOSFET DRIVER
high end driverNO
jesd_30_codeR-PDSO-G8
jesd_609_codee4
moisture_sensitivity_level1
Rated output peak current limit3.5 A
Packaging MaterialsPLASTIC/EPOXY
ckage_codeSOP
ckage_equivalence_codeSOP8,.25
packaging shapeRECTANGULAR
Package SizeSMALL OUTLINE
eak_reflow_temperature__cel_260
wer_supplies__v_5
qualification_statusCOMMERCIAL
seated_height_max1.75 mm
sub_categoryMOSFET Drivers
Rated supply voltage5 V
Minimum supply voltage4.5 V
Maximum supply voltage5.5 V
surface mountYES
Temperature levelAUTOMOTIVE
terminal coatingNICKEL PALLADIUM GOLD
Terminal formGULL WING
Terminal spacing1.27 mm
Terminal locationDUAL
ime_peak_reflow_temperature_max__s_30
length4.9 mm
width3.9 mm
STSR2P/
STSR2PM
FORWARD SYNCHRONOUS
RECTIFIERS SMART DRIVER
s
s
s
s
s
s
SUPPLY VOLTAGE RANGE: 4.5V TO 5.5V
TYPICAL PEAK OUTPUT CURRENT:
SOURCE -2A, SINK 3.5A
OPERATING FREQUENCY: 20 TO 750 KHZ
SMART TURN-OFF ANTICIPATION TIMING
OPERATION INDEPENDENT FROM THE
FORWARD MAGNETIC RESET TECHNIQUE
POSSIBILITY TO OPERATE IN
DISCONTINUOUS MODE
SO-8
DESCRIPTION
STSR2P Smart Driver IC provides two
complementary high current outputs to drive
Power Mosfets. The IC is dedicated to properly
drive secondary Synchronous Rectifiers in
medium power, low output voltage, high efficiency
Forward Converters. From a synchronizing clock
input, STSR2P generates two driving signals with
the self-setting of dead time between
complementary pulses. The IC operation prevents
secondary
side
shoot-through
conditions
providing proper timing at the outputs turn-off
transition. This smart function operates through a
fast cycle-after-cycle control logic mechanism
based on an internal high frequency oscillator,
synchronized by the clock signal. A fixed
anticipation in turning-off the OUT
GATE1
with
respect to the clock signal transition is provided,
while the anticipation in turning off the OUT
GATE2
can be set through external components. The
adopted transitions revelation mechanism makes
circuit operation independent by the forward
magnetic reset technique used, avoiding most of
the common problems inherent in self-driven
synchronous rectifiers. A special Inhibit function
allows the shut-off of OUT
GATE2
. This feature
makes discontinuous conduction mode possible
and prevents the freewheeling mosfet from
sinking current from the output.
STSR2P automatically turns off the outputs when
duty-cycle is lower than 13%, while STSR2PM
works even at very low duty-cycle values.
SCHEMATIC DIAGRAM
Vcc
2
+
BIAS
UVLO
5.7V
CK
4
PEAK
DETECTOR
ANTICIPATION
SET
3
SETANT2
+
+
HIGH
FREQUENCY
OSCILLATOR
1
OUTGate1
DIGITAL
CONTROL
OUTPUT
BUFFERS
7
OUTGate2
INHIBIT
5
-
+
25mV
6
8
SGLGND
PWRGND
September 2003
1/12

STSR2P Related Products

STSR2P STSR2PM
Description 3.5 A HALF BRDG BASED MOSFET DRIVER, PDSO8 3.5 A HALF BRDG BASED MOSFET DRIVER, PDSO8
Number of functions 1 1
Number of terminals 8 8
Minimum operating temperature -40 Cel -40 Cel
Maximum operating temperature 125 Cel 125 Cel
Processing package description SOP-8 SOP-8
each_compli Yes Yes
EU RoHS regulations Yes Yes
state Active Active
Interface Type HALF BRIDGE BASED MOSFET DRIVER HALF BRIDGE BASED MOSFET DRIVER
high end driver NO NO
jesd_30_code R-PDSO-G8 R-PDSO-G8
jesd_609_code e4 e4
moisture_sensitivity_level 1 1
Rated output peak current limit 3.5 A 3.5 A
Packaging Materials PLASTIC/EPOXY PLASTIC/EPOXY
ckage_code SOP SOP
ckage_equivalence_code SOP8,.25 SOP8,.25
packaging shape RECTANGULAR RECTANGULAR
Package Size SMALL OUTLINE SMALL OUTLINE
eak_reflow_temperature__cel_ 260 260
wer_supplies__v_ 5 5
qualification_status COMMERCIAL COMMERCIAL
seated_height_max 1.75 mm 1.75 mm
sub_category MOSFET Drivers MOSFET Drivers
Rated supply voltage 5 V 5 V
Minimum supply voltage 4.5 V 4.5 V
Maximum supply voltage 5.5 V 5.5 V
surface mount YES YES
Temperature level AUTOMOTIVE AUTOMOTIVE
terminal coating NICKEL PALLADIUM GOLD NICKEL PALLADIUM GOLD
Terminal form GULL WING GULL WING
Terminal spacing 1.27 mm 1.27 mm
Terminal location DUAL DUAL
ime_peak_reflow_temperature_max__s_ 30 30
length 4.9 mm 4.9 mm
width 3.9 mm 3.9 mm
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