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LB11975, LB11975L, LB11976

Table of contents:
Info of LB11975
Info of LB11975L
Info of LB11976

LB11975, LB11975L, LB11976 Selling Leads, Datasheet

MFG:SANYO Package Cooled:SOP36 D/C:05+

LB11975, LB11975L, LB11976 Datasheet download

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Part Number: LB11975

MFG: SANYO

Package Cooled: SOP36

D/C: 05+

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LB11975 General Description

The LB11975 is a monolithic bipolar IC developed for uses as a spindle motor driver for high-speed CD-ROM and DVD-ROM drives. To minimize heat generation during high-speed rotation and braking, the LB11975 adopts direct PWM drive in the output stage. During reverse braking the upper and lower side output transistors are both driven in PWM mode to implement dual PWM controlled braking. The device thus controls the current to remain under a limit value and prevent rapid heat generation. This prevents device destruction due to rapid heating. The absolute maximum voltage rating is 27 V, and the maximum current is 2.5 A.

LB11975 Maximum Ratings

Parameter	Symbol	Conditions	Ratings	Unit
supply voltage 1	V_CC1 max		7	V
supply voltage 2	V_CC2 max		27	V
supply voltage 3	V_CC3 max	Capstan motor driver	27	V
Output current	I_O max		2.5	A
Output current	V_IN max		30	V
Allowable power dissipation 1	Pd max1	Independent IC	0.9	W
Allowable power dissipation 2	Pd max2	Mounted on the specified circuit board (114.3 76.11.6 mm3 glass epoxy board)	2.1	W
Operating temperature	Topr		20 to +75	°C
Storage temperature	Tstg		55 to +150	°C

LB11975 Features

• Direct PWM drive (lower side control)
• Built-in upper and lower side output diodes
• Supports the use 3.3 V DSP devices.
• Power saving function for standby mode
• Hall FG output (1 or 3 Hall device operation)
• Built-in Hall device power supply
• Reverse rotation detection output and drive cutoff circuit
• Voltage control amplifier
• Current limiter circuit
• Thermal protection circuit

LB11975 Connection Diagram

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