SI-8008HFE Allegro Microsystems Inc, SI-8008HFE Datasheet

IC, BUCK, REG, 5.5A, 5TO220

SI-8008HFE

Manufacturer Part Number
SI-8008HFE
Description
IC, BUCK, REG, 5.5A, 5TO220
Manufacturer
Allegro Microsystems Inc
Datasheet

Specifications of SI-8008HFE

Primary Input Voltage
40V
No. Of Outputs
1
Output Voltage
24V
Output Current
5.5A
Voltage Regulator Case Style
No. Of Pins
Operating Temperature Range
-30°C To +85°C
Base
RoHS Compliant
Package / Case
TO220

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SI-8008HFE
Manufacturer:
IR
Quantity:
4 000
Part Number:
SI-8008HFE
Manufacturer:
SANKEN
Quantity:
20 000
Company:
Part Number:
SI-8008HFE
Quantity:
9 839
Features and Benefits
▪ 5.5 A output current supplied in a small, through-hole
▪ High efficiency: 83% at V
▪ Requires only seven external components (optional soft
▪ Oscillation circuit built-in (frequency 150 kHz typical)
▪ Constant-current mode overcurrent protection circuit and
▪ Soft start function built-in (can be implemented as an
▪ Low current consumption during output-off state
Package: TO220F-5
Not to scale
27469.060
mount power package
start requires an additional capacitor)
overtemperature protection circuit built-in
on/off function; output-off state at low level)
V
IN
C1
C4
C3
5
1
IN
SS
= 15 V, I
IN
Soft Start
On/Off
O
= 3.0 A,V
Functional Block Diagram
PReg
Osc
O
= 5 V
GND
Comparator
3
Reset
Error
Amplifier
DC-to-DC Step-Down Converter
Overcurrent
Protection
Description
The SI-8008HFE DC voltage regulator is a DC-to-DC buck
convertor that attains an oscillation frequency of 150 kHz,
and has an integrated miniaturized choke coil, allowing it to
serve as a small, high efficiency power supply in a compact
TO220F package.
The internal switching regulator function provides high
efficiency switching regulation without any need for adjustment.
The device requires only six external support components. The
optional soft start function requires an additional capacitor.
Optional on/off control can be performed using a transistor.
The SI-8008HFE includes overcurrent and overtemperature
protection circuits.
Applications include:
▪ DVD recorder
▪ FPD TV
▪ Telecommunications equipment
▪ Office automation equipment, such as printers
▪ On-board local power supply
▪ Output voltage regulator for second stage of SMPS
(switched mode power supply)
Overtemperature
Reference
Voltage
Protection
Latch and
Driver
SW
ADJ
2
4
Di
Di
FMB-G16L
(Sanken)
SI-8008HFE
L1
R1
R2
C2
V
OU

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SI-8008HFE Summary of contents

Page 1

... SS On/Off Soft Start C3 27469.060 DC-to-DC Step-Down Converter Description The SI-8008HFE DC voltage regulator is a DC-to-DC buck convertor that attains an oscillation frequency of 150 kHz, = 3.0 A and has an integrated miniaturized choke coil, allowing serve as a small, high efficiency power supply in a compact TO220F package. ...

Page 2

... SI-8008HFE Selection Guide Output Voltage Part Number Adjustable Range (V) SI-8008HFE 0 Absolute Maximum Ratings Characteristic DC Input Voltage Power Dissipation Junction Temperature Storage Temperature Thermal Resistance (junction-to-case) Thermal Resistance (junction-to-ambient air) Recommended Operating Conditions* Characteristic DC Input Voltage Range DC Output Voltage Range DC Output Current Range ...

Page 3

... O – 20 5.6 6.5 – – – 10 – – 200 Function SSL on/off are used, a protection measure such as current limiting O SI-8008HFE System TTL (c) V on/off and O soft start control on/off is required, the SS pin is left open. O Max. Units 0.816 V – mV/°C – ...

Page 4

... SI-8008HFE Efficiency versus Output Current 6.00 5.00 4.00 Low Voltage Behavior: Output Voltage 3.00 versus Supply Voltage 2.00 1. DC-to-DC Step-Down Converter Performance Characteristics = 25° adjusted 4.2 kΩ 0.8 kΩ O Load Regulation: Output Voltage versus Output Current (A) O Overcurrent Protection: Output Voltage ...

Page 5

... SI-8008HFE The application must be designed to ensure that the T of the device is not exceeded during operation so necessary to determine values for maximum power dissipation, P (max), and ambient temperature can be calculated from input values: D ⎛ ⎞ 100 ⎜ ⎜ ⎟ ⎟ = ⋅ − − ...

Page 6

... D1 R2 Vadj/Vos Vin Vsw L1 L1 Vsw All external components should be mounted as close as possible to the SI-8008HFE. The ground of all components should be connected at one point. Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com , and are calculated as follows ...

Page 7

... SI-8008HFE 10.16 ± XXXXXXXX XXXXXXXX XXXXXXXX Branding XXXXXXXX Leadform: 1113A Weight: 2.3 g typical Dimensions in millimeters DC-to-DC Step-Down Converter PACKAGE OUTLINE DRAWING (4-R1) 0.8 +0.1 0.6 -0.05 +0.2 0.5 -0 1.7±0.6 = (6.8) Branding codes (exact appearance at manufacturer discretion): 1st line, type: 8008HFE ...

Page 8

... SI-8008HFE 7 8 12.6 Tube 50 pieces per tube 50 155 Dimensions in mm Carton Type Outer Carton A Outer Carton B DC-to-DC Step-Down Converter PACKING SPECIFICATION 528 A ANTISTATIC A 570 Inner Carton 12 tubes per carton 600 pieces per inner carton 580 180 140 2 inner cartons, 1200 pieces per outer carton ...

Page 9

... SI-8008HFE WARNING — These devices are designed to be operated at lethal voltages and energy levels. Circuit designs that embody these components must conform with applicable safety requirements. Pre cau tions must be taken to prevent accidental contact with power-line potentials. Do not connect ground ed test equipment. ...

Page 10

... SI-8008HFE The products described herein are manufactured in Ja pan by Sanken Electric Co., Ltd. for sale by Allegro MicroSystems, Inc. Sanken and Allegro reserve the right to make, from time to time, such de par tures from the detail spec tions as may be re quired to per mit im- prove ments in the per for mance, reliability, or manufacturability of its prod ucts ...

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