B4041C-3 データシートの表示（PDF） - Bay Linear
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B4041C-3 Datasheet PDF : 4 Pages
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B4041
Electrical Characteristics
B4041A-3
B4041B-3
B4041C-3
Unites
Parameter Condition Min Type Max Min Type Max Min Type Max
Rev; Brek. IR=500 µA
1.25
1.25
1.25
V
Voltage
Rev. Brek IR=500 µA
±50
±50
±50
mV
tolerance
±74
±74
±74
mV
Output
Impedance
0.60
2
0.60
2
0.60
2
Ω
Noise
0.1kHz≤f
15
15
15
µV p-p
Voltage
≤10Hz
Tempco
Note 1
50
100
150 ppm/°C
Turn-on
0.1% of
30
30
30
µSec
Setting
VOUT
Operating Note 2
0.1
5
0.1
5
0.1
5
mA
Current
15
15
15
Temp.
Range
-40
85 -40
85 -40
85
°C
Note: 1) Three-point measurement guarantees the error band over the specified temperature range.
2) Optimum performance is obtained at currents below 1000 µA.
3) Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation using
B4041 Applications Hints
This device is designed for stable operation and
has no need of an external capacitor between pin
4 and 8. The reference remains stable if a bypass
capacitor is used.
SOT-23
The B4041 in the SOT-23 package has a parasitic
Schottky diode between pin 3 and pin 1. Pin 1 of
SOT-23 must float or be connected to pin 3.
Conventional Shunt Regulator
In a conventional shunt regulator application (see
Figure 1), an external series resister (RS) is
connected between the supply voltage and the
B4041. RS determines the current that flows
through the load (IL) and the reference(IQ). Since
load current and supply voltage may vary, RS
should be small enough to supply at least the
minimum acceptable IQ to the reference even
when the supply voltage is at its minimum and
the load current is at its maximum value. When
the supply voltage is at its maximum and IL is at
its minimum, RS should be large enough so that
the current flowing through the B4041-x.x is less
than 15mA
RS is determined by the supply voltage (VS), the load and
operating current (IL and IQ), reference’s reverse
breakdown voltage (VR).
RS = (VS - VR)/(IL+IQ)
VS
RS
IO + IL
VR
IL
VO
tt
IQ
AS4041
Bay Linear, Inc 2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
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