BZB100A NXP Semiconductors, BZB100A Datasheet - Page 5

• Manufacturer Part Number: BZB100A
• Description: Bidirectional Zener diode in a SOD323 (SC-76) very small Surface-MountedDevice (SMD) plastic package
• Manufacturer: NXP Semiconductors

NXP Semiconductors
8. Application information
BZB100A_2
Product data sheet
High-voltage Zener diodes can be used as overvoltage protection diodes for Integrated
Circuits (IC) due to their ability to cut off the applied voltage at a well-defined value. One
important application is the protection of EL driver circuits where a driver IC is connected
to an EL foil. Since both the foil as well as the IC are sensitive against voltage overstress,
it is necessary to install an additional protection device in the circuit. Commonly, a
peak-to-peak voltage of 220 V should not be exceeded, such that two 100 V diodes in
bidirectional configuration are used.
Fig 4.
Fig 5.
T
Working current as a function of working voltage; typical values
Application diagram
j
= 25 C
(A)
I
ENABLE
Z
10
10
10
10
10
10
10
10
Rev. 02 — 24 June 2008
2
3
4
5
6
7
8
9
80
R enable
CHF
CLF
GND
CHF
CLF
n.c.
90
E
1
2
3
4
5
DRIVER IC
100
EL LAMP
10
9
8
7
6
V+
L+
VO
L
n.c.
110
006aab045
V
Z
(V)
L
120
006aab046
Bidirectional Zener diode
BZB100A
V
BAT
BZB100A
© NXP B.V. 2008. All rights reserved.
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