ST485ERBN STMicroelectronics, ST485ERBN Datasheet

IC TXRX LOPWR RS485/422 8-DIP

ST485ERBN

Manufacturer Part Number
ST485ERBN
Description
IC TXRX LOPWR RS485/422 8-DIP
Manufacturer
STMicroelectronics
Type
Transceiverr
Datasheets

Specifications of ST485ERBN

Number Of Drivers/receivers
1/1
Protocol
RS422, RS485
Voltage - Supply
4.75 V ~ 5.25 V
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Device Type
Transceiver
Interface Type
RS422, RS485
No. Of Drivers
1
Supply Voltage Range
4.75V To 5.25V
Driver Case Style
DIP
No. Of Pins
8
Operating Temperature Range
-40°C To +85°C
Svhc
No
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-2086-5

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ST485ERBN
Manufacturer:
ST
0
Part Number:
ST485ERBN SP485ACN ST485CN ST485BN ST485ECN ST485E
Manufacturer:
ST
0
Part Number:
ST485ERBN/ST485ERBDR
Manufacturer:
ST
0
DESCRIPTION
The MC34063A/E series is a monolithic control
circuit delivering the main functions for DC/DC
voltage converting.
The device contains an internal temperature
compensated reference, comparator, duty cycle
controlled oscillator with an active current limit
circuit, driver and high current output switch.
Output voltage is adjustable through two external
resistors with a 2% reference accuracy.
Employing a minimum number of external
components the MC34063A/E devices series is
designed
Voltage-Inverting applications.
BLOCK DIAGRAM
March 2004
OUTPUT SWITCH CURRENT IN EXCESS
OF 1.5A
2% REFERENCE ACCURACY
LOW QUIESCENT CURRENT: 2.5mA (TYP.)
OPERATING FROM 3V TO 40V
FREQUENCY OPERATION TO 100KHz
ACTIVE CURRENT LIMITING
for
Step-Down,
DC/DC CONVERTER CONTROL CIRCUITS
Step-Up
and
DIP-8
MC34063A
MC34063E
SO-8
1/16

Related parts for ST485ERBN

ST485ERBN Summary of contents

Page 1

OUTPUT SWITCH CURRENT IN EXCESS OF 1.5A 2% REFERENCE ACCURACY LOW QUIESCENT CURRENT: 2.5mA (TYP.) OPERATING FROM 3V TO 40V FREQUENCY OPERATION TO 100KHz ACTIVE CURRENT LIMITING DESCRIPTION The MC34063A/E series is a monolithic control circuit delivering the main functions ...

Page 2

MC34063A/E ABSOLUTE MAXIMUM RATINGS Symbol V Power Supply Voltage CC V Comparator Input Voltage Range IR V Switch Collector Voltage SWC V Switch Emitter Voltage (V SWE V Switch Collector to Emitter Voltage CE V Driver Collector Voltage DC I ...

Page 3

ORDERING CODES TYPE MC34063AB MC34063AC MC34063EB MC34063EC (*) The "A" version is not recommended for new designs. ELECTRICAL CHARACTERISTICS (Refer to the test circuits, V otherwise specified, see note 2) OSCILLATOR Symbol Parameter f Frequency OSC I Charge Current CHG ...

Page 4

MC34063A/E TOTAL DEVICE Symbol Parameter I Supply Current CC V Start-Up Voltage (Note 4) START-UP NOTES: 1) Maximum package power dissipation limit must be observed 0° 70°C (AC and EC series); T LOW HIGH 3) ...

Page 5

Figure 5 : Power Collector Emitter Saturation Voltage (V vs Temperature CEsat) Figure 6 : Current Limit Sense Voltage (V Temperature Figure 7 : Reference Voltage vs Temperature Figure 8 : Bias Current vs Temperature ) vs Figure 9 : ...

Page 6

MC34063A/E TYPICAL APPLICATION CIRCUIT Step-UP Converter Printed Demoboard Test Condition (V = 28V) OUT Test Line Regulation V IN Load Regulation V IN Output Ripple V IN Efficiency V IN 6/16 Conditions = 175 ...

Page 7

Step-Down Converter Printed Demoboard Test Condition (V = 5V) OUT Test Line Regulation V IN Load Regulation V IN Output Ripple V IN Efficiency Conditions = 500 mA ...

Page 8

MC34063A/E Voltage Inverting Converter Printed Demoboard Test Condition (V = -12V) OUT Test Line Regulation V IN Load Regulation V IN Output Ripple V IN Efficiency 8/16 Conditions = 4 ...

Page 9

Calculation Step-Up Parameter (Discontinuous mode off V + OUT ------------------------------------------------------- - V IN min ( max on off C 4.5x10 PK(switch) out(max) R 0.3 ------------------------------- V ripple p ...

Page 10

MC34063A/E Step-Down With External NPN Switch Step-Down With External PNP Switch 10/16 ...

Page 11

Voltage Inverting With External NPN Switch Voltage Inverting With External PNP Saturated Switch MC34063A/E 11/16 ...

Page 12

MC34063A/E Dual Output Voltage Higher Output Power, Higher Input Voltage 12/16 ...

Page 13

Plastic DIP-8 MECHANICAL DATA mm. DIM. MIN 0.7 B 1. 0.44 TYP MAX. MIN. 3.3 0.028 1.65 0.055 1.04 0.036 0.5 0.5 0.015 9.8 ...

Page 14

MC34063A/E DIM. MIN. A 1.35 A1 0.10 A2 1.10 B 0.33 C 0.19 D 4. 5.80 h 0.25 L 0.40 k ddd 14/16 SO-8 MECHANICAL DATA mm. TYP MAX. 1.75 0.25 1.65 0.51 0.25 5.00 4.00 ...

Page 15

Tape & Reel SO-8 MECHANICAL DATA mm. DIM. MIN 12 8.1 Bo 5.5 Ko 2.1 Po 3.9 P 7.9 TYP MAX. MIN. 330 13.2 0.504 0.795 2.362 22.4 8.5 0.319 5.9 0.216 ...

Page 16

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied ...

Related keywords