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PDF LB11692JH Data sheet ( Hoja de datos )

Número de pieza LB11692JH
Descripción Monolithic Digital IC 24V Fan Motor Driver IC
Fabricantes Sanyo Semicon Device 
Logotipo Sanyo Semicon Device Logotipo



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No Preview Available ! LB11692JH Hoja de datos, Descripción, Manual

Ordering number : ENA0333A
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LB11692JH Monolithic Digital IC
24V Fan Motor Driver IC
Overview
The LB11692JH is a three-phase brushless motor driver IC that uses a direct PWM drive technique to achieve highly
efficient drive. It is optimal for driving fuel pump motors and other miniature motors.
Functions
Direct PWM drive
PWM control based on both a DC voltage input (the CTL voltage) and a pulse input
Provides a 5V regulator output
One Hall-effect sensor FG output
Start/stop switching circuit (Stop mode includes a power saving function.)
Built-in integrating amplifier
Automatic recovery constraint protection circuit (on/off = 1/14), RD output
Built-in current limiter circuit
Built-in LVSD circuit
Built-in thermal protection circuit
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Supply voltage range
Output current
Allowable power dissipation 1
VCC max
IO max
Pd max1
T 500ms
Independent IC
Allowable power dissipation 2
Pd max2
Mounted on a specifed board*
Operating temperature
Topr
Storage temperature
Tstg
* Mounted on a specified board: 114.3mm×76.1mm×1.6mm, glass epoxy
Ratings
30
1.8
0.9
2.1
-40 to +85
-55 to +150
Unit
V
A
W
W
°C
°C
Any and all SANYO Semiconductor 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 Semiconductor representative
nearest you before using any SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor 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 Semiconductor
products described or contained herein.
D1306 MS IM 20060404-S00005 No.A0333-1/12

1 page




LB11692JH pdf
Block Diagram
EI- TOC
-
CTL
EI+
+
CTL AMP
LB11692JH
FG RD
FG
CSD
RD FC
FG CSD
CIRCUIT CIRCUIT
RD
LVSD
TSD
PWM
PWM
OSC
PWMIN
PWMIN
COMP
GND1
BGP VREF
FILTER
5VREG S/S F/R
CURR
LIM
CONTROL
CIRCUIT
HALL AMP
& MATRIX
DRIVER
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VCC
LVS
VCC
VD Rd
VM Rf
OUT1
OUT2
OUT3
VREG
S/S F/R FGFIL VREG IN1 IN2 IN3
GND2
Pin Functions
Pin
Symbol
No.
Pin Description
34
OUT1
Motor drive output
36 OUT2
2 OUT3
4 GND2 Motor drive output system ground
7 VD Low side output transistor drive current supply
9 VM Motor drive output power supply and output current
detection.
Connect a resistor (Rf) between this pin and VCC.
The output current is limited to a value determined
by the equation IOUT = VRF/Rf.
8
VCC
Power supply
(Systems other than the motor drive output)
10 VREG 5V regulator output (control circuit power supply).
Connect a capacitor (about 0.1µF) between this pin and
ground for stabilization.
VCC
Equivalent Circuit
300
VD
7
VM
9
2 34 36
4
VCC
10
Continued on next page.
No.A0333-5/12

5 Page





LB11692JH arduino
LB11692JH
12. Undervoltage Protection Circuit
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The undervoltage protection circuit turns off the low side output transistor
To the detected
if the LVS pin voltage falls below the circuit's operating voltage (about 3.8V). power supply
This operating voltage is the detection level for a 5V system. The detection
level can be increased by connecting a zener diode in series with the LVS pin
to apply a level shift to the detection level. The current flowing into the LVS
To the LVS pin
pin during detection is about 65µA.
To suppress variations in the zener voltage, it is necessary to stabilize the rise of the
zener diode voltage by increasing the current that flows in the zener diode. If this is
necessary, insert a resistor between the LVS pin and ground.
When the LCS pin is open, it will be pulled to the ground level by the built-in pull-down resistor and the output will
be turned off. Thus if the undervoltage protection circuit is not used, a voltage in excess of the release voltage (about
4.3V) must be applied to the LVS pin. Note that the maximum rating for the LVS pin voltage is 30V.
13. Motor Constraint Protection Circuit
When motor motion is constrained, the external capacitor connected to the CSD pin will be alternately charged (up to
about 3.0V) with a constant current of about 2.4µA and discharged with a constant current of about 0.17µA (to about
1.0V). Thus the CSD pin voltage will have a sawtooth waveform. The motor constraint protection circuit turns the
motor (the low side output transistor) on or off repeatedly based on this sawtooth waveform. Motor drive will be on
during the period the CSD pin external capacitor is being charged from about 1.0V to about 3.0V and will be off
when it is being discharged from about 3.0V to about 1.0V. The drive on/off operation protects the IC and the motor
when the motor is physically constrained from moving. If a 0.47µF capacitor is connected to the CSD pin, the IC will
iterate an on/off cycle in which drive is on for about 0.4 seconds and off for about 5.5 seconds.
While the motor is turning, the CSD pin voltage will be held at a certain voltage (that depends on the motor speed) by
(a) a CSD pin external capacitor discharge operation based on about 10µs discharge pulses generated internally in the
IC when the Hall input IN1 switches (that is, on rising and falling edges on the FG output) and (b) a charge operation
on that capacitor by a constant current of about 2.4µA.
Since the Hall input IN1 does not switch when the motor is physically constrained, the discharge pulses are not
generated and the CSD pin external capacitor will be charged to about 3.0V by the constant current of about 2.4µA.
The motor constraint protection circuit operates when the capacitor reaches about 3.0V. The constraint protection
operation will be released when the motor constraint is released.
If the motor speed is extremely low, the CSD pin voltage during that motor rotation will be held at a comparatively
high voltage, and if that voltage reaches about 3.0V, the constraint protection function will operate. Since the
constraint protection function will operate if the Hall input IN1 frequency falls below about 10Hz, caution is required
when using the motor constraint protection circuit with motors that will operate at low speeds.
Connect the CSD pin to ground if the motor constraint protection circuit is not used.
No.A0333-11/12

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