ꢀ ꢁ ꢂꢂ ꢃꢄ ꢂ ꢅ ꢆ ꢀ ꢁꢂꢇ ꢃ ꢄ ꢂ ꢅ
ꢈꢉ ꢊꢋꢅ ꢌꢍ ꢅꢎ ꢏ ꢐꢐ ꢑꢒ ꢓꢏ ꢔꢁ ꢎꢓ ꢕ ꢖ ꢗꢍ ꢘꢒ ꢕ ꢖꢙ ꢑꢚ ꢕ ꢒꢁ ꢛꢕꢖ ꢙ ꢘꢍꢙ ꢔꢜ ꢅꢒꢐ ꢘꢑ
SLLS636D – DECEMBER 2004 – REVISED MARCH 2005
TYPICAL CHARACTERISTICS
R*
V
out
8
7
6
1
2
8
7
6
1
2
V
out
R
SC
R
SC
V
in
V
in
*R " 0 for constant V
2b. External pnp Saturated Switch (see Note 5)
in
2a. External npn Switch
NOTE A: If the output switch is driven into hard saturation (non-Darlington configuration) at low switch currents (≤300 mA) and high driver currents
(≥30 mA), it may take up to 2 µs to come out of saturation. This condition will shorten the off time at frequencies ≥30 kHz and is magnified
at high temperatures. This condition does not occur with a Darlington configuration because the output switch cannot saturate. If a
non-Darlington configuration is used, the output drive configuration in Figure 2b is recommended.
Figure 7. External Current-Boost Connections for I Peak Greater Than 1.5 A
C
6
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