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PBD3545/1 Datasheet

  • PBD3545/1

  • IC-SINK DRIVER

  • 8頁

  • ETC

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January 1993
PBD 3545/1
Universal Sink Driver
Description
PBD 3545/1 is a bipolar universal high-current highly-protected low side driver with
transparent input and 2 A continuous-current sink capability. A high-level input activates
the output.
The driver is equipped with extensive electrical protection, such as overcurrent
protection and thermal protection, which makes the device viritually indestructible.
Furthermore it can detect open circuit and short circuit to ground.
A special feature is the Error indicating output function pin which signals to the host
system if the protection or the load check functions is activated.
Typical loads are solenoids, relays or resistive loads.
The PBD 3545/1 and PBD 3548/1 are complementary drivers and have similar data.
Key Features
鈥?2 A continuous-output current
鈥?Short circuit to V
CC
protection
鈥?Error signal to host system
鈥?Open circuit detection
鈥?Short circuit to ground detection
鈥?Thermal protection
鈥?Built-in protection diodes
鈥?LS-TTL, CMOS, and supply voltage
compatible input
鈥?ESD protected
鈥?5-pin TO-220 package, or 28-lead
power PLCC with lead-frame for heat-
sinking through PC board copper.
Supply
Output
Input
Thermal
protection
Q S
R
4 [7]
Short-circuit to
Vcc protection
h
Short-circuit to
GND detection
Open circuit
detection
[1-3,9,13-17,26,28]
[27] (PLCC only)
PWR
GND
Error
TO-220 5-pin package
28-pin PLCC package
Figure 1. Block Diagram. Pin number in brackets refer to PLCC package.
1
35 PB
45 D
/1
D
B /1
P 45
35
PBD 3545/1
To logic
5 [5]
Voltage reference
1 [21]

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