AMIS-39100 Datasheet, PDF (5/12 Pages) AMI SEMICONDUCTOR – Octal High Side Driver with Protection

AMIS−39100
TYPICAL APPLICATION DIAGRAM
VBAT
C_VB
5V−reg
C_VCC
C_VDDN
VCC
Micro−
controller
GND
C_CP
VB1..4
VDDN
27 17 5 10 19 24 OUT1
DIN ₁₂
4
L_load1
DOUT ₁₃
6
9
CLK ₂
AMIS−39100
11
18
WR ₃
20
23
PDB ₂₆
25
1 14 16 28 22 21 15 8 7
C_out1
OUT8
L_load8
C_out8
TEST1..2
GND1..6
R_load1
R_load8
Figure 2. Typical Application Diagram
PC20070110.2
External Components
It is important to properly decouple the power supplies of the chip with external capacitors that have good high frequency
properties.
The VB1, VB2, VB3, and VB4 pins are shorted on the PCB level. Also GND1, GND2, GND3, GND4, GND5, GND6, TEST,
TEST1, and TEST2 are shorted on the PCB level.
Table 6. EXTERNAL COMPONENTS
Component
Function
Min Value Max
Tol [%]
Unit
C_VB
Decoupling Capacitor; X7R
100
$20
nF
C_{charge_pump}
Charge Pump Capacitor (Note 6)
0.47
47
nF
C_out (Note 7)
EMC Capacitor on Connector
1
nF
C_out (Note 7)
Decoupling Capacitors on OUT 1 to 8; 50 V
22
$20
nF
C_VDD
Decoupling Capacitors; 50 V
22
$20
nF
R_Load
Load Resistance
65
$10
W
L_Load
Load Inductance at Maximum Current
300
350
mH
6. The capacitor must be placed close to the AMIS−39100 pins on the PCB.
7. Both capacitors are optional and depend on the final application and board layout.
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