L9222_04 Datasheet, PDF (1/7 Pages) STMicroelectronics – QUAD INVERTING TRANSISTOR SWITCH

L9222
QUAD INVERTING TRANSISTOR SWITCH
1 FEATURES
■ OUTPUT VOLTAGE TO 50V
■ OUTPUT CURRENT TO 1.2A
■ VERY LOW SATURATION VOLTAGE
■ TTL COMPATIBLE INPUTS
■ INTEGRAL SUPPRESSION DIODE
2 DESCRIPTION
The L9222 monolithic quad transistor switch is de-
signed for high current, high voltage switching ap-
plications.
Each of the four switches is controlled by a logic
input and all four are controlled by a common en-
able input. All inputs are TTL-compatible for direct
connection to logic circuits. Each switch consists
of an open-collector transistor plus a clamp diode
for applications with inductive loads.
Figure 2. BLOCK DIAGRAM
Figure 1. Packages
Powerdip (12+2+2)
Table 1. Order Codes
Part Number
L9222
L9222 D
SO20L
Package
(PDIP12+2+2)
(SO20L)
The emitters of the four switches are connected to-
gether to GND. The switches of the same device
may be paralled. The device is intended to drive
coils such as relays, solenoids, unipolar stepper
motors, LED etc.
May 2004
REV. 3
1/7