L6206 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L6206' PDF : 23 Pages View PDF
L6206
To operate the device in parallel and maintain a lower over current threshold, Half Bridge 1 and the Half Bridge
2 of the Bridge A can be connected in parallel and the same done for the Bridge B as shown in Figure 14. In
this configuration, the peak current for each half bridge is still limited by the bond wires for the supply and sense
pins so the dissipation in the device will be reduced, but the peak current rating is not increased.
When connected in this configuration the over current detection circuit, senses the sum of the current in upper
devices connected in parallel. With the enables connected in parallel, an over current will turn of both bridges.
Since the circuit senses the total current in the upper devices, the over current threshold is equal to the threshold
set the resistor RCLA or RCLB in figure 14. RCLA sets the threshold when outputs OUT1A and OUT2A are high
and resistor RCLB sets the threshold when outputs OUT1B and OUT2B are high.
It is recommended to use RCLA = RCLB.
In this configuration, the resulting bridge has the following characteristics.
- Equivalent Device: FULL BRIDGE
- RDS(ON) 0.15Ω Typ. Value @ TJ = 25°C
- 2.8A max RMS Load Current
- 5.6A max OCD Threshold
Figure 14. Parallel connection with lower Overcurrent Threshold
+
VS
8-52VDC
C1
POWER
GROUND
-
SIGNAL
GROUND
LOAD
VSA 20
C2
VSB 17
D1
RP
VCP
22
CBOOT
D2
CP
VBOOT
15
SENSEA 3
SENSEB 10
OUT1A 5
OUT2A 21
OUT1B 8
OUT2B 16
18
GND
19
GND
6
GND
7
GND
4 OCDA
ENA
23
9 OCDB
ENB
REN
14
EN
CEN
1 IN1A
INA
2 IN2A
11 IN1B
INB
12 IN2B
24 PROGCLA
RCLA
13 PROGCLB
RCLB
D02IN1361
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