std878_stn878.pdf part of ST std878 stn878 std878_stn878.pdf, . Electronic Components Datasheets Active components Transistors ST std878

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STD878
STN878
High current, high performance, low voltage
NPN transistors

Features
Very low collector to emitter saturation voltage
DC current gain, hFE >100 4 4
5 A continuous collector current
3
2 3
Applications 1 1

Power management in portable equipment
Voltage regulation in bias supply circuits SOT-223 DPAK
Switching regulator in battery charger
applications
Heavy load driver
Figure 1. Internal schematic diagram
Description
The devices are manufactured in low voltage NPN
planar technology with "base island" layout. the
resulting transistor shows exceptional high gain
performance coupled with very low saturation
voltage.

Table 1. Device summary
Order codes Markings Packages Packaging

STD878T4 D878 DPAK Tape and reel
STN878 N878 SOT-223 Tape and reel

August 2010 Doc ID 13836 Rev 2 1/10
www.st.com 10
Electrical ratings STD878, STN878

1 Electrical ratings

Table 2. Absolute maximum ratings
Symbol Parameter Value Unit

VCBO Collector-base voltage (IE = 0) 45 V
VCEO Collector-emitter voltage (IB = 0) 30 V
VEBO Emitter-base voltage (IC = 0) 6 V
IC Collector current 5 A
ICM Collector peak current (tP < 5 ms) 10 A
Total dissipation at TC = 25