EVAL6229PD STMicroelectronics, EVAL6229PD Datasheet - Page 20

• Manufacturer Part Number: EVAL6229PD
• Description: EVAL BOARD FOR L6229PD SOIC
• Manufacturer: STMicroelectronics

Specifications of EVAL6229PD

• Mfg Application Notes: L6235, AN1625 App Note
• Main Purpose: Power Management, Motor Control
• Embedded: No
• Utilized Ic / Part: L6229PD SOIC
• Primary Attributes: 3-Ph BLDC, 8 ~ 52V Output, PWM Current Control, Brake Function
• Secondary Attributes: Over Current, Cross Conduction & Temperature Protection
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5491

AN1451 APPLICATION NOTE
applied to R
The external RC network, C
t
at least 100µs for t
The internal open drain can also be turned on if the device experiences an over temperature (OVT) condition.
The OVT will cause the device to shut down when the die temperature exceeds the OVT threshold
(T
DMOS will shut down, even if EN pin voltage is still over V
OVT turn-off threshold (150 °C typ.), the open drain turns off, C
erDMOS are turned on back.
Figure 20. Typical disable and delay time as a function of C
20/43
DELAY
J
>165 °C typ.). Since the OVT is also connected directly to the gate drive circuit (see Figure 1), all the Power
) and a safe disable time (long t
EN
.
1 1 0
DISABLE
1 0 0
0 . 1
3
1 0
1 0
1
1
1
1
are recommended, keeping the delay time below 1÷2µs at the same time.
EN
in particular, must be chosen obtaining a reasonable fast OCD intervention (short
DISABLE
R
E N
= 2 2 0 k
). Figure 20 shows both t
C
C
E N
E N
1 0
1 0
[ n F ]
[ n F ]
th(OFF)
R
E N
EN
. When the junction temperature falls below the
= 1 0 0 k
is recharged up to V
EN
, for several values of R
DISABLE
1 0 0
1 0 0
and t
R
R
R
E N
E N
E N
= 4 7 k
= 3 3 k
= 1 0 k
DELAY
TH(ON)
as a function of C
and then the Pow-
EN
.
EN
: