Matched pair transistors
Matched pair transistors are double transistors with matched current gain
h
FE1
/h
FE2
and matched base-emitter voltage V
BE1
- V
BE2
. The optimal product for the
most common applications is offered by means of several matching-categories
and different pinning options. Internally the transistors are fully isolated.
Key features
- Current gain matching:
h
FE1
/h
FE2
= 0.7, 0.9, 0.95, 0.98
- Base-emitter voltage matching:
V
BE1
- V
BE2
= 2 mV
- Standard double transistor pin-out for
BCM-types
- Application optimized pin-out for all
PMP-types
- Common emitter con鏗乬uration for
5pin PMP-types
Key bene鏗乼s
- Improved performance of current mirror
and differential ampli鏗乪r circuits
- Drop-in replacement for standard double
transistors (BCM-series)
- Simpli鏗乪d board layout (PMP-series)
- Eliminates need for costly
additional trimming
Vin
Rsense
Vout
Vsense
Current sensor using
matched pairs
MSE265
Key applications
- Current mirror e.g. for current
measurement or to drive LED鈥檚 with a
constant current
- Differential ampli鏗乪r e.g. sensor
signal ampli鏗乧ation
- Comparator e.g. for DC/DC converters
SOT143B
SOT457 (SC-74) SOT353 (SC-88A) SOT363 (SC-88)
P
tot
max.
Polarity
I
C
(mA)
V
CEO
(V)
30
NPN
100
h
FE
min.
110
h
FE
max.
800
h
FE1
/h
FE2
0.7
0.9
45
200
450
0.9
0.95
0.98
30
PNP
100
110
800
0.7
0.9
45
200
450
0.9
0.95
0.98
V
BE1
- V
BE2
(mV)
n.a.
2
2
2
2
n.a.
2
2
2
2
250 mW
BCV61/A/B/C
BCM61B
380 mW
300 mW
300 mW
BCM847DS
PMP4501G
PMP4201G
BCV62/A/B/C
BCM62B
BCM857DS
PMP5501G
PMP5201G
BCM847BS
PMP4501Y
PMP4201Y
BCM857BS
PMP5501Y
PMP5201Y
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