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PDF PBD3548-1 Data sheet ( Hoja de datos )

Número de pieza PBD3548-1
Descripción Universal Source Driver
Fabricantes Ericsson 
Logotipo Ericsson Logotipo



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February 1999
PBD 3548/1
Universal Source Driver
Description
PBD 3548/1 is a bipolar universal high-current highly-protected high side driver with
transparent input and 2 A continuous-current source capability. A low-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 VCC.
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 3548/1 and PBD 3545/1 are complementary drivers and have similar data.
Key Features
2 A continuous-output current
• Short circuit to ground protection
• Error signal to host system
• Open circuit detection
• Short circuit to VCC detection
• Thermal protection
• Built-in protection diodes
• LS-TTL, CMOS, and supply voltage
compatible input
• ESD protected
• 5-pin TO-220 package, or 28-lead
power PLCC with lead-frame for heat-
sinking through PC board copper.
PBD 3548/1 To logic
Input
Voltage reference
Error
QS
R
Thermal
protection
Short-circuit to
GND protection
hShort-circuit to
Vcc detection
Open circuit
detection
Figure 1. Block Diagram.
Vcc
Output
GND
354P8/B1D
TO-220 5-pin package
28-pin PLCC package
1
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PBD3548-1 pdf
PBD 3548/1
Typical performance characeristics
Icc (mA)
10
8
-40°C < TJ < 100°C
6
4
2
0 0 10 20 30 40 50
Vcc (V)
Figure 7. Current consumption vs.
supply voltage at 2 V Vin VCCV.
(Inactive output)
IF (A)
2.0
1.6
TJ = 25°C
IIN (µA)
4
-40°C TJ 100°C
2
1.2 0
0.8
0.4
0 0 0.4 0.8 1.2 1.6 2.0
VF (V)
-2
-4
-6 0
0.5 1.0 1.5 2.0 2.5
VIN (V)
Figure 8. Diode forward voltage drop vs.
forward current.
Figure 9. Input current vs. input voltage.
5 V VCC 40 V.
I ERR (mA)
25
TJ = 25°C
20
I OUT (A)
5
TJ = 25°C
4
I OL (mA)
50
40
0°C Tj 100°C
15
10
5
0
0 2 4 6 8 10
VERR(V)
3
2
1
0
1.0 1.4 1.8 2.2 2.6 3.0
VCE SAT (V)
30
20 -40°C Tj 0°C
10
0
0 10 20 30 40 50
VCC (V)
Figure 10. Error output saturation
voltage vs. error current. VCC = 24 V.
PDIS (W)
6
5
4
3
2
1
0 0 0.5 1.0 1.5 2.0 2.5 3.0
IOut (A)
Figure 11. Output saturation voltage vs.
output current. 5 V < VCC < 40 V.
IOS (A)
-5
-4
Figure 12. Output leakage current vs.
supply voltage. 2.0 V VIN VCC.
Output = VCC.
-3
-2
-1
0 -40
-20
0
20 40 60
TJ (C)
80 100 120
Figure 13. Power dissipation vs. output
current.
Figure 14. Output current shut-down vs. chip temperature. 5 V VCC 40 V.
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