LM3916MWC National Semiconductor Corporation, LM3916MWC Datasheet - Page 25

• Manufacturer Part Number: LM3916MWC
• Description: Dot/bar Display Driver
• Manufacturer: National Semiconductor Corporation

Connection Diagram
Definition of Terms
Absolute Accuracy: The difference between the observed
threshold voltage and the ideal threshold voltage for each
comparator. Specified and tested with 10V across the inter-
nal voltage divider so that resistor ratio matching error pre-
dominates over comparator offset voltage.
Adjust Pin Current: Current flowing out of the reference
amplifier pin when the reference amplifier is in the linear re-
gion.
Comparator Gain: The ratio of the change in output current
(I
duce it for a comparator in the linear region.
Dropout Voltage: The voltage measured at the current
source outputs required to make the output current fall by
10%.
Input Bias Current: Current flowing out of the signal input
when the input buffer is in the linear region.
LED Current Regulation: The change in output current
over the specified range of LED supply voltage (V
LED
) to the change in input voltage (V
*
IN
Discontinued, Life Time Buy date 12/20/99
) required to pro-
See NS Package Number NA18A
See NS Package Number N18A
Order Number LM3916N-1
Order Number LM3916N
Dual-In-Line Package
LED
) as
Top View
25
measured at the current source outputs. As the forward volt-
age of an LED does not change significantly with a small
change in forward current, this is equivalent to changing the
voltage at the LED anodes by the same amount.
Line Regulation: The average change in reference output
voltage (V
(V
Load Regulation: The change in reference output voltage
over the specified range of load current (I
Offset Voltage: The differential input voltage which must be
applied to each comparator to bias the output in the linear re-
gion. Most significant error when the voltage across the in-
ternal voltage divider is small. Specified and tested with pin
6 voltage (V
Relative Accuracy: The difference between any two adja-
cent threshold points. Specified and tested with 10V across
the internal voltage divider so that resistor ratio matching er-
ror predominates over comparator offset voltage.
+
).
*
REF
RHI
DS007971-33
) over the specified range of supply voltage
) equal to pin 4 voltage (V
RLO
L(REF)
).
).
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