PS21963-AT Mitsumi Electronics, Corp., PS21963-AT Datasheet - Page 9

• Manufacturer Part Number: PS21963-AT
• Manufacturer: Mitsumi Electronics, Corp.

[C] Under-Voltage Protection (Upper-side, UV
[D] Over Temperature Protection (Lower-side, OT)
Fig. 9 RECOMMENDED MCU I/O INTERFACE CIRCUIT
Fig. 10 WIRING CONNECTION OF SHUNT RESISTOR
c1. Control supply voltage rising : After the voltage level reaches UV
c2. Normal operation : IGBT ON and carrying current.
c3. Under voltage trip (UV
c4. IGBT OFF in spite of control input signal level, but there is no F
c5. Under voltage reset (UV
c6. Normal operation : IGBT ON and carrying current.
d1. Normal operation : IGBT ON and carrying current.
d2. LVIC temperature exceeds over temperature trip level (OT
d3. IGBT OFF in spite of control input condition.
d4. F
d5. LVIC temperature becomes under over temperature reset level.
d6. Circuits start to operate normally when next input is applied.
O
outputs during over temperature period, however, the minimum pulse width is 20µs.
Note : The setting of RC coupling at each input (parts shown dotted) depends on the PWM control scheme and the
wiring impedance of the printed circuit board.
The DIPIPM input section integrates a 3.3kΩ (min) pull-down resistor. Therefore, when using an external fil-
tering resistor, pay attention to the turn-on threshold voltage.
DBt
DBr
).
Control input
Protection circuit state
Control supply voltage V
Output current Ic
Error output Fo
).
Control input
Protection circuit state
LVIC temperature
Output current Ic
Fault output Fo
V
NC
DIPIPM
MCU
DB
High-level (no fault output)
DB
UV
N
)
DBr
RESET
c1
d1
5V line
t
Wiring inductance should be less than 10nH.
).
10kΩ
Shunt resistor
O
9
UV
DBr
signal outputs.
DBt
OT
c2
Equivalent to the inductance of a copper
pattern in dimension of width=3mm,
thickness=100µm, length=17mm
, the circuits start to operate when next input is applied.
SET
t
SET
U
Fo
V
c3
NC
d2
d3
P
,V
c4
(Logic)
OT
DIPIPM
P
Please make the GND wiring connection
of shunt resistor to the V
as close as possible.
d4
,W
RESET
rh
RESET
P
,U
N
,V
3.3kΩ (min)
c5
N
,W
d5
PS21963-T/-AT/-CT/-TW
N
NC
c6
terminal
d6
TRANSFER-MOLD TYPE
INSULATED TYPE
Mar. 2009