Monolithic Digital LB8112V Loading Motor Driver with Built-i
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Ordering number EN5388
Monolithic Digital
LB8112V
Loading Motor Driver with Built-in Sensor Amplifiers
Overview
LB8112V integrates driver video cassette deck loading motor associated peripheral sensor amplifiers single chip. LB8112V implement circuits with saturation voltages power levels since directly drive power transistors from power supply.
Package Dimensions
unit: 3191-SSOP30
[LB8112V]
Functions Features
Built-in output current control detection circuits loading motor reel motor amplifiers top-end sensors buffer amplifiers overcurrent protection circuit Thermal shutdown
SANYO: SSOP30
Specifications
Absolute Maximum Ratings 25°C
Parameter Maximum supply voltage Maximum output current Input voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC1 VCC2 Topr Tstg Independent device, 150°C Continuous, Conditions Ratings VCC2 -0.3 VCC1 +0.3 +150 Unit
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN
D3197HA (OT) 5388-1/8
LB8112V Allowable Operating Ranges 25°C
Parameter Supply voltage voltage Symbol VCC1 VCC2 VCC2 VCC1 Conditions Ratings VCC2 Unit
Electrical Characteristics 25°C, VCC1 VCC2 4.75
Parameter Symbol ICC11 VCC1 current drain ICC12 ICC13 ICC21 VCC2 current drain current drain Input high-level voltage High-level input current Input low-level voltage Low-level input current Output high-level voltage Output low-level voltage [Loading Motor Driver] Output saturation voltage Limit current Detection current Limit current setting range [Reel Amplifier] Input offset voltage Input bias current Common-mode input voltage range Open-loop gain Loop gain Common-mode rejection ratio Source output saturation voltage Sink output saturation voltage [LPF Buffer] Input offset Input bias current Common-mode input voltage range Open loop gain Common-mode rejection ratio Output voltage range Source Output current Bandwidth [LPF Buffer Limiter] Input offset Input bias Common-mode input voltage range VICM VCC1 Sink VICM VOUT1 ISI1 ISI2 VCC2 VCC2 VICM 0.25 0.25 30.5 V(sat)1 V(sat)2 ILimi IDET ILim (vertical addition) (vertical addition) VINH IINH VINL IINL VOUTH VOUTL ICC22 ICC23 Standby mode Forward/reverse mode, LIMIT Brake mode, LIMIT Standby mode (VCC1 open) Standby mode (VCC1 Forward/reverse mode Standby mode VCC1 VCC1 VCC1 4.0, source current: VCC1 4.0, sink current: VCC1 Conditions Ratings 0.460 18.5 Unit
[Logic Inputs (the DEC1, DEC2, LIMIT, pins)]
[Logic Outputs (the LIMITOUT, TOPOUT, ENDOUT pins)]
Note: Items marked with asterisk design target values tested.
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5388-2/8
LB8112V
Continued from preceding page.
Parameter [TOP/END sensor] Input resistance Minimum input sensitivity Thermal shutdown operating temperature Thermal shutdown hysteresis TTSD TTSD Symbol Conditions Ratings Unit
Note: Items marked with asterisk design target values tested.
Truth Tables Loading motor truth table
Input DEC1 DEC2 OUT1 Output OUT2 Standby Forward Reverse Brake Mode
Loading motor current limiter detection modes
LIMIT output LIMIT NONLIMIT Saturation LIMIT
Assignment
5388-3/8
LB8112V Functions
Symbol voltage Equivalent circuit Function
P-ground output transistor output current detected resistor inserted between ground motor current control.
OUT1 OUT2
Outputs Connect these pins motor.
VCC1
Power supply circuit other than loading output block buffer This power supply must stabilized that noise does enter this pin. Power supply loading motor pre-driver buffer. case VCC1, this power supply must stabilized that noise does enter this pin. Loading motor power supply case VCC2, this power supply must stabilized that noise does enter this pin.
VCC2
VCC2
BIN1 BIN2
buffer input This used form low-pass filter shown peripheral circuit example.
BOUT1 BOUT2
buffer output Outputs voltage identical that applied buffer pin.
Continued next page.
5388-4/8
LB8112V
Continued from preceding page.
Symbol voltage Equivalent circuit Function
ISNF
ISNF connection limiter oscillation prevention capacitor. current limiter current detection pin.
used limiter. voltage determined external circuits.
TOPIN ENDIN
Sense amplifier input block Internal resistance: output inverted pulse excess input pin.
Ground that common P-GND SGND.
TOPOUT ENDOUT
VCC1
sensor outputs.
RLM1 RLP1 RLM2 RLP2
L-FG amplifier inputs RLM1 RLM2 negative inputs. RLP1 RLP2 positive inputs.
Continued next page. 5388-5/8
LB8112V
Continued from preceding page.
Symbol voltage Equivalent circuit Function
RLO1 RLO2
VCC1
R-FG amplifier outputs
DEC1 DEC2
VCC1
Loading motor inputs When VCC1 higher high, lower low.
LIMIT
VCC1
Current limiter on/off control When VCC1 this higher: current limiter will lower: current limiter will off.
LIMIT
VCC1
Current limiter detection output When VCC1 this higher: current limiter will off. lower: current limiter will
VCC1-
Current limiter setting Sets limit current setting voltage between GND.
Unused (Must left open.)
Continued next page.
5388-6/8
LB8112V Peripheral Circuit Example
Equivalent Circuit Block Diagram
5388-7/8
LB8112V
products described contained herein intended surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment like, failure which directly indirectly cause injury, death property loss. Anyone purchasing products described contained herein above-mentioned shall: Accept full responsibility indemnify defend SANYO ELECTRIC CO., LTD., affiliates, subsidiaries distributors their officers employees, jointly severally, against claims litigation damages, cost expenses associated with such use: impose responsibility fault negligence which cited such claim litigation SANYO ELECTRIC CO., LTD., affiliates, subsidiaries distributors their officers employees jointly severally. Information (including circuit diagrams circuit parameters) herein example only; guaranteed volume production. SANYO believes information herein accurate reliable, guarantees made implied regarding infringements intellectual property rights other rights third parties. This catalog provides information December, 1997. Specifications information herein subject change without notice. 5388-8/8
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