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L6220
QUAD DARLINGTON SWITCHES
L6220
L6220NApril 1993
QUAD DARLINGTON SWITCHES TWO NON INVERTING + TWO INVERTING IN-
PUTS WITH INHIBIT. OUTPUT VOLTAGE UP TO 50V. OUTPUT CURRENT UP TO 1.8A. VERY LOW SATURATION VOLTAGE. TTL COMPATIBLE INPUTS. INTEGRAL FAST RECIRCULATION DIODES
DESCRIPTIONThe L6220 monolithic quad darlington switch is de-
signed for high current, high voltage switching appli-
cations. Each of the four switches is controlled by a
logic input and all four are controlled by a common
inhibit input. All inputs are TTL-compatible for direct
connection to logic circuits.
Each switch consists of an open-collector darlington
transistor plus a fast diode for switching applications
with inductive loads. The emitters of the four
switches are commoned. Any number of inputs and
outputs of the same device may be paralleled.
Two versions are available : the L6220 mounted in
a Powerdip 12 + 2 + 2 package and the L6220N
mounted in a 15-lead Multiwatt package.
PIN CONNECTIONS (top views)1/12
BLOCK DIAGRAM
PIN FUNCTIONS (see block diagram)For each input : H = High level
L = Low level
TRUTH TABLE
L6220 - L6220N2/12
THERMAL DATA
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICSRefer to the test circuits Fig. 1 to Fig.9 (VS = 5V, Tamb = 25o C unless otherwise specified)
L6220 - L6220N3/12
TEST CIRCUITS(X) = Referred to Multiwatt package
X = Referred to Powerdip package
Figure 1 : Logic Supply Current.Set V 1 = 4.5V, V 2 = 0.8V, V INH = 4.5V or V 1 = 0.8V, V 2 = 4.5V, V INH = 0.8 for IS (all outputs off).
Set V 1 = 2V, V 2 = 0.8V, V INH = 0.8V for IS (all outputs on).
Figure 2 : Output Sustaining Voltage. Figure 3 : Output Leakage Current.
L6220 - L6220N4/12
Figure 4 : Collector-emitter Saturation Figure 5 : Logic Input Characteristics.Set S 1, S 2 open, V IN, V INH = 0.8V for I IN L, I INH L
Set S 1, S 2 open, V IN, V INH = 2V for I IN H, I INH H
Set S 1, S 2 close, V IN, V INH = 0.8V for V IN L, V INH L
Set S 1, S 2 close, V IN, V INH = 2V for V IN H, V INH H.
Figure 6 : Clamp Diode Leakage Current. Figure 7 : Clamp Diode Forward Voltage.
L6220 - L6220N5/12
