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Sanyo Electric Components Datasheet

LB1939T Datasheet

2 Channel H Bridge Constant Voltage/ Constant Current Driver IC

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Ordering number : ENN6194
Monolithic Digital IC
LB1939T
2 Channel H Bridge Constant Voltage/
Constant Current Driver IC
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]
6.5
20 11
1
0.65
(0.33)
0.22 10
0.15
SANYO: TSSOP20
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Maximum supply voltage
Applied output voltage
Maximum output current: OUT1, 2, 3, and 4
Applied input voltage
Allowable power dissipation
VBmax
VOUT
IOmax
VIN
Pdmax
VS1, VS2, VDD
OUT1, 2, 3, 4
t 10 ms
ENA, IN, VC
When mounted on a printed circuit board*
Operating temperature
Topr
Storage temperature
Tstg
Note: Circuit board: 114.3 × 76.1 × 1.6 mm3 glass epoxy board
Ratings
–0.3 to +10.5
–0.3 to +10.5
400
10.5
0.8
–20 to +85
–55 to +150
Unit
V
V
mA
V
W
°C
°C
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.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
22704TN (OT) No. 6194-1/7
Datasheet pdf - http://www.DataSheet4U.net/


Sanyo Electric Components Datasheet

LB1939T Datasheet

2 Channel H Bridge Constant Voltage/ Constant Current Driver IC

No Preview Available !

www.DataSheet.co.kr
LB1939T
Allowable Operating Conditions at Ta = 25°C
Parameter
Operation guaranteed voltage range 1
Operation guaranteed voltage range 2
Input low-level threshold voltage
Input high-level threshold voltage
Symbol
Conditions
VOPR1
VOPR2
VIL
VIH
VDD system, VS = 2.0 V
VS system, VDD = 5.0 V
ENA1, ENA2, IN1, IN2
ENA1, ENA2, IN1, IN2
Electrical Characteristics at Ta = 25°C, VS = 3.0 V, VDD = 5.0 V
Parameter
Symbol
Conditions
Standby mode current drain
[Regulator Output Circuit]
VREF output voltage
SVDD output voltage
[H Bridge Output Circuit]
OUT pin output saturation voltage 1
(Saturation control mode)
OUT pin output saturation voltage 2
(Saturation control mode)
OUT pin output voltage 1
(Constant voltage control mode)
OUT pin output voltage 2
(Constant voltage control mode)
OUT pin output current 1
(Constant current control mode)
OUT pin output current 2
(Constant current control mode)
VS system operating current drain 1
VS system operating current drain 2
VDD system operating current drain 1
VDD system operating current drain 2
VC input voltage range
VC input current
[Control Input Circuit]
Control pin maximum input current
ISTB
VREF
VSVDD
Vosat1
Vosat2
VOUT1
VOUT2
IOUT1
IOUT2
IS1
IS2
IDD1
IDD2
VC
IVC
IIH
IIL
VS = VDD = 6.5 V
IOL = 0 to 1 mA
IOL = 10 mA
VDD = 5.0 V, VC = SVDD, VS = 2.0 V
IO = 200 mA (PNP transistor side)
VDD = 5.0 V, VC = SVDD, VS = 2.0 V
IO = 200 mA (NPN transistor side)
VDD = 6.0 V, VC = 1.5 V, VS = 3.5 V
IO = 200 mA (PNP transistor side)
VDD = 6.0 V, VC = VREF, VS = 2.0 V
IO = 200 mA (PNP transistor side)
VDD = 6.0 V, VC = 0.9 V, VS = 3.5 V
RL = 5 (between OUT and OUT), RFB = 1
VDD = 6.0 V, VC = VREF, VS = 2.0 V
RL = 5 (between OUT and OUT), RFB = 1
VC = SVDD
VC = VREF
VC = SVDD ENA1 = 2 V
VC = VREF ENA1 = 2 V
VDD = 6.0 V, VS = 2.0 V, VC = 5.0 V
VIH = 5.5 V
VIL = GND
Pd max — Ta
1
Mounted on a 114.3 × 76.1 × 1.6 mm
glass-epoxy printed circuit board
0.8
0.6
0.4
0.2
0
–20 0
20 40 60 80 100
Ambient temperature, Ta — °C
min
1.9
1.6
–0.3
2.0
Ratings
typ
max
6.5
7.5
+1.0
6.0
Unit
V
V
V
V
Ratings
Unit
min typ max
0.1 1.0 µA
0.85
4.7
0.9
0.95
V
4.8 V
2.8
1.65
197
189
0.1
0
–1
0.20
0.10
2.9
1.75
210
210
4
1.5
4
4
50
70
0.30
0.15
3.0
1.85
223
231
7
3
7
7
7
100
V
V
V
V
mA
mA
mA
mA
mA
mA
V
µA
100 µA
0 µA
No. 6194-2/7
Datasheet pdf - http://www.DataSheet4U.net/


Part Number LB1939T
Description 2 Channel H Bridge Constant Voltage/ Constant Current Driver IC
Maker Sanyo Semicon Device
Total Page 7 Pages
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