si-8090jd Allegro MicroSystems, Inc., si-8090jd Datasheet

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si-8090jd

Manufacturer Part Number
si-8090jd
Description
Step-down To 9.0 V, 1.5 A, Dc/dc Converter
Manufacturer
Allegro MicroSystems, Inc.
Datasheet
Input Voltage, V
Output Current, I
Enable Input Voltage, V
Junction Temperature, T
Storage Temperature Range,
* Output current rating is limited by input
ABSOLUTE MAXIMUM RATINGS
voltage, duty cycle, and ambient tempera-
ture. Under any set of conditions, do not
exceed a junction temperature of +125°C.
T
S
. . . . . . . . . . . . -40°C to +125°C
I
O
. . . . . . . . . . . . .
. . . . . . . . . . . 1.5 A*
OE
J
. . . . +125°C
. . . . . . . . . . .
43 V
Step-Down to 9.0 V, 1.5 A, DC/DC Converter
6 V
SI-8090JD
industrial and consumer applications; embedded core, memory, or logic
supplies; TVs, VCRs, and office or telecommunications equipment, the
SI-8090JD dc/dc step-down (buck) converter offers a constant 125 kHz
switching frequency essential for low EMI noise. The npn switch is
included on the die along with the oscillator, control, and logic circuitry
requiring only four external components for a regulated 9.0 V output at
up to 1.5 A. .
protection enhance overall system reliability. Reference accuracy and
excellent temperature characteristics are provided. An output-enable
input gives the designer complete control over power up, standby, or
power down.
(TO-263) with ground tab to provide a low-resistance path for maximum
heat dissipation. A similar device in a flange-mounted (TO-220-style)
high-power package is the SI-8090JF.
FEATURES
APPLICATIONS
Always order by complete part number, e.g., SI-8090JD-TL ,
where “-TL” indicates tape and reel.
from Allegro MicroSystems
Sanken Power Devices
11 V to 40 V Input Range
1.5 A Output Current at 9.0 V
2% Output Voltage Tolerance
Foldback Current Limiting
Constant 125 kHz Switching Frequency
200 µA Maximum Standby Current
Soft Start Prevents Supply Voltage Dip
Remote Voltage Sensing
Exposed Pad for Superior Heat Dissipation
Thermal Protection
TVs, VCRs, Electronic Games
Embedded Core, Memory, or Logic Supplies
Printers and Other Office Equipment
Industrial Machinery
Telecommunications Equipment
Designed to meet high-current requirements at high efficiency in
A wide input voltage range and integrated thermal and overcurrent
This device is supplied in a 5-lead surface-mount plastic package

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si-8090jd Summary of contents

Page 1

... TVs, VCRs, and office or telecommunications equipment, the SI-8090JD dc/dc step-down (buck) converter offers a constant 125 kHz switching frequency essential for low EMI noise. The npn switch is included on the die along with the oscillator, control, and logic circuitry requiring only four external components for a regulated 9 ...

Page 2

... SI-8090JD Step-Down to 9.0 V, 1.5 A, DC/DC Converter Allowable Package Power Dissipation 2 FUNCTIONAL BLOCK DIAGRAM Recommended Operating Conditions DC Input Voltage (I DC Output Current (V Operating Junction Temp. For the availability of parts meeting -40°C require- ments, contact Allegro’s Sales Representative. This data sheet is based on Sanken data sheet SSJ-01774 ...

Page 3

... Converter turn-off voltage SI-8090JD Step-Down to 9.0 V, 1.5 A, DC/DC Converter = 0.5 A (unless otherwise noted). O Limits Min. Typ. 8.82 9.00 — ±1.0 1.6 — — 86 — 125 — 50 — 10 — 7.0 — — — ...

Page 4

... SI-8090JD Step-Down to 9.0 V, 1.5 A, DC/DC Converter Efficiency Low-Voltage Behavior Temperature Stability 4 TYPICAL CHARACTERISTICS (T = 25°C) A 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 Overcurrent Protection Load Regulation ...

Page 5

... SI-8090JD Step-Down to 9.0 V, 1.5 A, DC/DC Converter Typical Application 5 ...

Page 6

... SI-8090JD Step-Down to 9.0 V, 1.5 A, DC/DC Converter Thermal Protection. Circuitry turns off the switching transistor when the junction temperature rises above 150° intended only to protect the device from failures due to excessive junction temperatures and should not imply that output short circuits or continuous overloads are permitted. ...

Page 7

... Tab Temperature (T ) Measured Here T www.allegromicro.com Dimensions in Millimeters Recommended Land Pattern SI-8090JD Step-Down to 9.0 V, 1.5 A, DC/DC Converter 7 ...

Page 8

... SI-8090JD Step-Down to 9.0 V, 1.5 A, DC/DC Converter Tape and Reel Dimensions in Millimeters Tape Specifications 1. Material: conductive polystyrene. 2. Allowable camber: 1 mm/100 mm maximum (10.6 mm) and B0 (15.7 mm) measured on a plane 0.3 mm above the bottom of the pocket (4.9 mm) is measured from a plane on the inside bottom of the pocket to the surface of the carrier. ...

Page 9

... Shipping Container Dimensions in Millimeters www.allegromicro.com SI-8090JD Step-Down to 9.0 V, 1.5 A, DC/DC Converter Inner Box 2 reels per box, 800 pieces per reel Outer Box Maximum 3 inner boxes per outer box EI16EI 9 ...

Page 10

... SI-8090JD Step-Down to 9.0 V, 1.5 A, DC/DC Converter 10 The products described herein are manufactured in Japan by Sanken Electric Co., Ltd. for sale by Allegro MicroSystems, Inc. Sanken and Allegro reserve the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, or manufacturability of its products ...

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