L6221C_03

Manufacturer Part NumberL6221C_03
DescriptionQUAD DARLINGTON SWITCH
ManufacturerSTMICROELECTRONICS [STMicroelectronics]
L6221C_03 datasheet
 


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®
.
FOUR NON INVERTING INPUTS WITH
.
ENABLE
.
OUTPUT VOLTAGE UP TO 60 V
.
OUTPUT CURRENT UP TO 1.8 A
.
VERY LOW SATURATION VOLTAGE
.
TTL COMPATIBLE INPUTS
INTEGRAL FAST RECIRCULATION DIODES
DESCRIPTION
The L6221 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
enable 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 device loads. The emitters of the four-
switches are commoned. Any number of inputs and
BLOCK DIAGRAM
July 2003
QUAD DARLINGTON SWITCH
Powerdip 12 + 2 + 2
ORDERING NUMBERS :L6221C
L6221CN (Multiwatt 15 )
L6221CD (SO16+2+2)
outputs of the same device may be paralleled.
Three versions are available : the L6221C mounted
in a Powerdip 12 + 2 + 2 package and the L6221CN
mounted in a 15--lead Multiwatt package, the
L6221CD in SO16+2+2 package.
L6221C
Multiwatt 15
SO16 + 2 + 2
(Powerdip 12+2+2)
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L6221C_03 Summary of contents

  • Page 1

    FOUR NON INVERTING INPUTS WITH . ENABLE . OUTPUT VOLTAGE OUTPUT CURRENT VERY LOW SATURATION VOLTAGE . TTL COMPATIBLE INPUTS INTEGRAL FAST RECIRCULATION DIODES DESCRIPTION The L6221 monolithic ...

  • Page 2

    L6221C THERMAL DATA Symbol R Thermal Resistance Junction-pins th j-pins R Thermal Resistance Junction-case th j-case R Thermal Resistance Junction-ambient th j-amb PIN CONNECTIONS (top views) L6221C (Powerdip) 2/15 Parameter Max. Max. Max. OUT4 CLAMPB N.C. OUT3 GND GND OUT2 ...

  • Page 3

    ABSOLUTE MAXIMUM RATINGS Symbol V Output Voltage O V Logic Supply Voltage Input Voltage, Enable Voltage Continuous Colllector Current (for each channel Collector Peak Current (repetitive, duty cycle = 10% ton ...

  • Page 4

    L6221C ELECTRICAL CHARACTERISTICS Refer to The Test Circuit to Fig.1 to Fig.9 (V otherwise specified) Symbol Parameter V Logic Supply Voltage S I Logic Supply Current S I Output Leakage Current CEX V Collector Emitter Saturation Voltage CE(sat) (one input ...

  • Page 5

    TEST CIRCUITS (X) = Referred to Multiwatt package X = Referred to Powerdip package Figure 1 : Logic supply current 4.5V 0.8V 0.8V 2V, ...

  • Page 6

    L6221C Figure 4 : Collector-emitter Saturation Voltage. Figure 6 : Clamp Diode Leakage Current +60V P 6/15 Figure 5 : Logic Input Characteristics open 0.8V for ...

  • Page 7

    Figure 8 : Switching Times Test Circuit. Figure 10 : Allowed Peak Collector Cur- rent vs. Duty Cycle for Contemporary Working Outputs (L6221C). Figure 9 : Switching TImes Waveforms. Figure 11 : Allowed Peak Collector ...

  • Page 8

    L6221C Figure 12 : Collector Saturation Voltage vs. Collector Current. Figure 14 : Collector Saturation Voltage vs. Junction Temperature 1A. C Figure 16 : Saturation Voltage vs. Junc- tion Temperature 1.8A. 8/15 Figure 13 ...

  • Page 9

    Figure 18. Figure 19 : Driver for Solenoids up to 3A. Some care must be taken to ensure that the collec- tors are placed close together to avoid different cur- rent partitioning at turn-off. We suggest to put in parallel ...

  • Page 10

    L6221C Figure 20 : Saturation Voltage vs. Collector Current. Figure 22 : Peak Collector Current vs. Duty Cycle for Paralleled Outputs Driven (L6221CN). 10/15 Figure 21 : Peak Collector Current vs. Duty Cycle for ...

  • Page 11

    MOUNTING INSTRUCTION The R of the L6221C can be reduced by sol- th j-amb dering the GND pins to a suitable copper area of the printed circuit board (Fig. 23 external heatsink (Fig. 24). The diagram of ...

  • Page 12

    L6221C mm DIM. MIN. TYP. MAX. MIN 2. 0.49 0.55 0.019 F 0.66 0.75 0.026 G 1.02 1.27 1.52 0.040 G1 17.53 17.78 18.03 0.690 H1 19.6 0.772 H2 20.2 L 21.9 ...

  • Page 13

    DIM. MIN. TYP. MAX. MIN. a1 0.51 0.020 B 0.85 1.40 0.033 b 0.50 b1 0.38 0.50 0.015 D 20.0 E 8.80 e 2.54 e3 17.78 F 7.10 I 5.10 L 3.30 Z 1.27 inch MECHANICAL DATA TYP. MAX. ...

  • Page 14

    L6221C mm DIM. MIN. TYP. MAX. MIN. A 2.35 2.65 0.093 A1 0.1 0.3 0.004 B 0.33 0.51 0.013 C 0.23 0.32 0.009 D 12.6 13 0.496 E 7.4 7.6 0.291 e 1. 10.65 0.394 h 0.25 0.75 ...

  • Page 15

    Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the conse- quences of use of such information nor for any infringement of patents or other rights of third parties which may result from its ...