SANYO LB1965M Datasheet

Ordering number : ENN6189

LB1965M

Monolithic Digital IC

LB1965M

Two-Phase Unipolar Driver

for Variable-Speed Fan Motor

Features

• With only a few peripheral parts including a thermistor, ambient temperature dependent continuous speed control can be implemented. This allows low-speed startup (100% duty drive at startup).

• Settable minimum rotation speed for low temperature

• Built-in thermistor voltage amplification circuit assures high precision of ambient temperature to rotation speed ratio

• Built-in motor lockup protection and automatic recovery circuit Output current Io = 1.5A, built-in output stage protection Zener diode –> Low-noise protection with chip capacitors also possible

• Built-in thermal protection

• FG output

• Direct Hall element connection possible

Package Dimensions

unit: mm

3111-MFP14S

[LB1965M]

8.0

0.35

1.0

4.4

1.0

0.15

1.8max

1.50.1

SANYO : MFP14S

0.625

5.15

6.4

Specifications

Absolute Maximum Ratings at Ta = 25˚C

Parameter Symbol Conditions Ratings Unit Maximum input current ICC max t ≤ 20 ms 200 mA Maximum applied output voltage VOUT max Internal V Maximum output current I out max 1.5 A Current flowing into FG IRD max 10 mA FG applied voltage VRD max 50 V Allowable power dissipation Pd max Mounted on a specified PCB 0.8 W

(114.3 × 76.1 × 1.5 mm3 glass epoxy) Operating temperature Topr –30 to +85 °C Storage temperature Tstg –55 to +150 °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

83100RM(KI)

No. 6189-1/6

LB1965M

412

Allowable Operating Ranges at Ta = 25˚C

Parameter Symbol Conditions Ratings Unit Input current range ICC 6.0 to 50 mA Hall amplifier common mode input VICM 0 to VIN–1.5 V voltage range

RMI input voltage range VRMI 0.3 to VIN V Rth input voltage range VICM 0 to VIN–1 V

Electrical Characteristics at Ta = 25˚C, ICC = 10 mA

Parameter Symbol Conditions Output limiter voltage VoLM1 Io = 0.1A 30 32 34 V

Vosat1 Io = 0.5A 0.95 1.2 V

Output saturation voltage Vosat2 Io = 1.0A 1.15 1.5 V

Vosat3 Io = 1.5A 1.4 2.0 V Input voltage VIN Icc = 7.0 mA 6.4 6.7 7.0 V Amplifier input offset voltage VOFF –7.0 0 7.0 mV Amplifier input bias current IBA –250 nA FG output saturation voltage VFG(sat) IFG = 5 mA 0.15 0.3 V C charge voltage IC1 C = GND 2.7 3.9 5.0 µA C discharge voltage IC2 C = VIN 0.35 0.50 0.65 µA Comp input threshold voltage VTH1 0.77 0.8VIN 0.83 V

VTH2 0.42 0.45VIN 0.48 V Ct discharge voltage VCT 0.20 0.22VIN 0.24 V Rt input current Irt VRT = GND 1 3 µA VRt amplification VRt RT = OPEN 1.52 1.56 1.60 times RMI offset voltage VRMIoff –7 0 +7 mA Thermal protection operating voltage TSD Design target value* 150 180 210 ˚C

* Design target values are not measured.

Ratings

min typ max

Unit

1000

Specified substrate (114.3 × 76.1 × 1.5 mm3) glass epoxy

800

600

400

200

Allowable power dissipation, Pd max – mW

0 –30 0 30 60 85 90 120

Pd max – Ta

416

Ambient temperature, Ta – °C

Pin Assignment

VIN

IN–

1 2

111

Rth

LB1965M

IN+

3 4

9 8

RMI

OUT2

OUT1

5 6 7

GND

(Top View)

No. 6189-2/6

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