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L6213 Datasheet

  • L6213

  • SOLENOID DRIVER SWITCH MODE POWER SUPPLY

  • 9頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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L6213
SOLENOID DRIVER + SWITCH MODE POWER SUPPLY
ADVANCE DATA
OPERATING SUPPLY VOLTAGE UP TO 46V
1A POWER SUPPLY (5V)
5A SOLENOID DRIVER
PRECISE ON CHIP REFERENCE VOLTAGE
DISCONTINUOUS MODE - FREQUENCY
VARIABLE
VERY HIGH EFFICIENCY
1鈩?OUTPUT DMOS (SMPS)
INTERNAL CURRENT LIMIT (SMPS SEC-
TION)
EXTERNALLY PROGRAMMABLE SOLENOID
CURRENT RISING SLOPE
EXTERNALLY PROGRAMMABLE FIXED
HYSTERESIS CONTROL
OPTIMIZED DMOS R
DS ON
FOR HIGH SIDE
CHOPPING
DESCRIPTION
The L6213 is an IC containing a S.M.P.S. deliver-
ing 1A at a voltage of 5V and a section designed
to drive a solenoid with a current up to 5A.
The device is realized in BCD mixed technology,
which combines isolated DMOS power transistor
with CMOS and Bipolar circuits on the same chip.
The SMPS section can deliver 1A DC with an out-
APPLICATION CIRCUIT
MULTIPOWER BCD TECHNOLOGY
Powerdip 16+2+2
put voltage of 5V, including current limiting, reset
and power fail for microprocessor and thermal
protection.
The solenoid driver section is designed for high
current applications like hammer driver in elec-
tronic typewriter.
The solenoid output section contains a high side and
a low side DMOS, which R
DS ON
are optimized for
high side chopping. The current rising slope is exter-
nally programmable through an external capacitor.
The level of hysteresis of the current can be
changed through an external resistor.
The device is supplied in Powerdip 16+2+2, and
use the four center pins to conduct heat to the
printed circuit.
November 1991
1/9
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

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