LB1660 Просмотр технического описания (PDF) - SANYO -> Panasonic
Номер в каталоге
Компоненты Описание
производитель
LB1660 Datasheet PDF : 9 Pages
| |||
LB1660N, 1661, 1664N, 1665
Electrical Characteristics at Ta = 25°C
Parameter
Output limit voltage 1
Output limit voltage 2
Output saturation voltage
VIN input voltage
Amp input offset voltage
Amp input bias current
Comparator input bias current
Comparator input threshold
voltage
Symbol
VOsus
VOR
VO(sat) 1
VO(sat) 2
VO(sat) 3
VIN
Voff
IBA
IBC
VTH
Conditions
IO =0.1 A, both VOUT 1, 2
IO = 0A, both VOUT -1, 2
IO = 0.5 A, both VOUT 1, 2
IO = 1.0 A, both VOUT 1, 2
IO = 1.5 A, both VOUT 1, 2
ICC = 7.0 mA
Pd max – Ta
min
65
80
6.4
−7
–250
typ max Unit
V
V
0.95 1.20 V
1.15 1.50 V
1.40 2.00 V
6.7 7.0 V
0 +7 mV
nA
250 nA
0.8VIN
V
Ambient temperature, Ta – °C
[Design Specifications]
(1) Supply voltage
The hall amp and control block of the LB1660 series are supplied with power from the on-chip parallel regulator. Set the DC
resistance R1 across VCC and VIN so that ICC flowing into the VIN pin becomes 7 to 50 mA in the supply voltage range of a
fan motor.
VIN is 6.7 V typ at ICC = 7 mA.
The current flowing into VIN is calculated using the equation shown below.
ICC = VCC – VIN
.............................................. 1
. R1
Consideration given to surge voltage
The maximum allowable current at VIN pin is 200 mA. Therefore, the design is made so that a surge voltage of positive value
calculated using the following equation is allowable in applications where the IC is used.
Vsurge = VIN + R1 × 200 mA .................................... 2
(2) Hall input offset voltage
The gain in transmission from the hall input pin to the output pin is 100 dB or greater. The offset voltage of the hall input
amp is ±7 mV; therefore, the hall element output must be set with the offset voltage (±7 mV) considered.
(3) Output transistor
Output Current
IO = 1.5 A max
Output saturation voltage
VOsat = 2.0 V/1.5 A
When external capacitors are connected to the output stages, the capacitance should not exceed 10 µF. Since the LB1660N,
1664N have a protect zener diode across collector and base, the kickback voltage induced by the coil is cut at VOLM = 59 V
typ.
No.2551-6/9
Share Link: 