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LB1939T Datasheet(PDF) 1 Page - Sanyo Semicon Device

No. de pieza LB1939T
Descripción Electrónicos  2 Channel H Bridge Constant Voltage/Constant Current Driver IC
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Fabricante Electrónico  SANYO [Sanyo Semicon Device]
Página de inicio  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LB1939T Datasheet(HTML) 1 Page - Sanyo Semicon Device

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Ordering number : ENN6194
22704TN (OT) No. 6194-1/7
Overview
The LB1939T is a two-phase excitation bipolar stepping
motor driver that features low voltage operation, a low
saturation voltage, and low power consumption. It
supports constant voltage and constant current drive, can
control two iris motors, and is optimal for shutter, iris, and
AF drive in 3 V battery operated still digital cameras and
other battery operated equipment.
Features
• Low-voltage drive
— Dual power supply operation: VS = 1.6 to 7.5 V,
VDD = 1.9 to 6.5 V
— Single power supply operation: VS = VDD = 1.9 to
7.5 V
• Low saturation voltage output: Vosat = 0.3 V at IO =
200 mA
• Supports constant voltage and constant current drive
• Built-in reference voltage circuit (Vref = 0.9 V)
• Miniature, thin form package (Thickness t = 1.1 mm)
Package Dimensions
unit: mm
3246-TSSOP20
LB1939T
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
2 Channel H Bridge Constant Voltage/
Constant Current Driver IC
Monolithic Digital IC
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VBmax
VS1, VS2, VDD
–0.3 to +10.5
V
Applied output voltage
VOUT
OUT1, 2, 3, 4
–0.3 to +10.5
V
Maximum output current: OUT1, 2, 3, and 4
IOmax
t
≤ 10 ms
400
mA
Applied input voltage
VIN
ENA, IN, VC
10.5
V
Allowable power dissipation
Pdmax
When mounted on a printed circuit board*
0.8
W
Operating temperature
Topr
–20 to +85
°C
Storage temperature
Tstg
–55 to +150
°C
Specifications
Absolute Maximum Ratings at Ta = 25°C
Note: Circuit board: 114.3
× 76.1 × 1.6 mm3 glass epoxy board
0.65
(0.33)
0.22
0.15
6.5
1
10
20
11
SANYO: TSSOP20
[LB1939T]


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