ATA6826 Datasheet, PDF (13/15 Pages) ATMEL Corporation – Triple Halfbridge DMOS Output Driver with Serial Input Control

ATA6826
10. Application Circuit
Figure 10-1. Application Circuit
V_CC
U5021M
Watchdog
Enable
DI
5
CLK
6
CS
4
INH ₁₀
DO
9
V_CC
O
HLH L HLS
n. n. C n. n. n. n. n. n. S S S S S S R
u. u. S u. u. u. u. u. u. 3 3 2 2 1 1 R
Input register
Output register
Serial interface
P OS
S PC
F LD
n. n. n. n. n. n. _{H L H L H L T}
u. u. u. u. u. u. S S S S S S P
332211
3
VS
Charge
pump
V_S
BYT41D
V_Batt
13 V
Fault
detect
Fault
detect
Fault
detect
Fault
detect
Fault
detect
Fault
detect
2
OUT3
12
OUT2
13
OUT1
Control
logic
Thermal
protection
UV
protection
Power-on
reset
11
VCC
1 _GND
7 _GND
8
GND
14
GND
V_CC
V_CC
5V
MM
11. Application Notes
It is strongly recommended to connect the blocking capacitors at V_CC and V_S as close as possi-
ble to the power supply and GND pins.
Recommended value for capacitors at V_S:
Electrolytic capacitor C > 22 µF in parallel with a ceramic capacitor C = 100 nF. The value for
electrolytic capacitor depends on external loads, conducted interferences and reverse conduct-
ing current I_Out1,2,3 (see “Absolute Maximum Ratings” on page 7).
Recommended value for capacitors at V_CC:
Electrolytic capacitor C > 10 µF in parallel with a ceramic capacitor C = 100 nF.
To reduce thermal resistance it is recommended to place cooling areas on the PCB as close as
possible to the GND pins.
13
4834C–BCD–06/06