Document
Ordering number : ENA2078
LB1960MC
Monolithic Digital IC
For Fan Motor
2-phase Half-Wave Driver
Overview
The LB1960MC is a 2-phase half-wave driver for fan motor. The LB1960MC is a compact package. Low external parts count, easy wiring, and small PCB area allow use also with miniature fan motors.
Functions
• Dual power supply voltage design (5/12V) and wide voltage handling range. (3V also supported for rotation functions only)
• Constant-voltage Hall bias power supply (1.3V across HB to GND) assures stable Hall output over entire temperature and power supply voltage range. External limiting resistor not required.
• Built-in Hall amplifier with hysteresis (supports core without commutating pole). • Built-in lockup protection and automatic recovery circuits (External capacitor for rotation detection need only be 0.1μF,
allowing compact, cost-saving design). • Built-in output transistor with output withstand voltage 24V (max)/output current 500mA (average), 1A (peak). • Built-in thermal protection circuit.
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage Maximum output current
Maximum output voltage Maximum HB output current
VCC max IOUT ave IOUT peak VOUT max IH max
t ≤ 1ms
18 500 1000 Internal
10
V mA mA V mA
Allowable power dissipation
Pd max
Mounted on a specified board *
750 mW
Operating temperature
Topr
-30 to +85
°C
Storage temperature
Tstg
-55 to +150
°C
* Specified board: 114.3mm × 76.1mm × 1.6mm, glass epoxy board. Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time. Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current, high
voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for new introduction or other application different from current conditions on the usage of automotive device, communication device, office equipment, industrial equipment etc. , please consult with us about usage condition (temperature, operation time etc.) prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment.
70412 SY 20120417-S00001 No.A2078-1/4
LB1960MC
Allowable Operating Conditions at Ta = 25°C
Parameter Recommended supply voltage Common mode input voltage range
Symbol VCC VCOM
Conditions
Electrical Characteristics at Ta = 25°C, VCC = 12V
Parameter
Symbol
Conditions
Circuit current
ICC In drive mode (CT = L) In lockup protection mode (CT = H)
CT capacitor charge current
ICT1
VCT = 0.2V
Capacitor discharge current
ICT2
VCT = 8V
Capacitor charge/discharge current RCT ratio
RCT = ICT1/ICT2
CT charge voltage
VCT1
CT discharge voltage
VCT2
Output limiter withstand voltage
VOLM
IO = 1mA
Output saturation voltage
VOsat
IO = 50mA
Hall input sensitivity
VHN
Including offset and hysteresis
HB output H voltage
VHBH
RH = 350Ω
Thermal protection trigger
TSD
Assured design target *
temperature
* Assured design target: Target value, not measured individually.
Ratings
3.6 to 17 0.2 to HB
Unit V V
min
0.8 0.16
4.0
Ratings typ 2.3 3 1.2 0.24 5.0
6.8 7.2
1.4 1.6
22.5
23.5
1.0
6
1.1 1.3
180 180
max 4 5
2.0 0.4 7.0
Unit
mA mA μA μA
7.6 V
1.8 V
24.5
V
1.3 V
12 mV
1.5 V
210 °C
Package Dimensions
unit : mm (typ) 3424
4.9 8
Pd max -- Ta
1000
Specified board: 114.3×76.1×1.6mm3 glass epoxy board.
800
Allowable power dissipation, Pd max -- mW
3.9 6.0 0.375 0.835
12 1.27
0.42 0.2
1.75 MAX
600 400 200
390
0.175
SANYO : SOIC8
0 -30 0 30 60.