C&H Technology PS21765 - Manual (Page 7)

PS21765
Intellimod™ Module
Dual-In-Line Intelligent Power Module
20 Amperes/600 Volts
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
 Rev. 07/07
C1
C5
C6
C3 C2
UVDt
C7
C4
SET RESET RESET
HIGH LEVEL (NO FAULT OUTPUT)
UVDBr
CONTROL INPUT
PROTECTION
CIRCUIT STATE
CONTROL SUPPLY
VOLTAGE VDB
OUTPUT CURRENT IC
FAULT OUTPUT FO
C. Under-Voltage Protection (Upper-arm, UVDB)
C1: Control supply voltage rises – After the voltage level reaches UVDBr, the drive circuit begins to work
at the rising edge of the next input signal.
C2: Protection circuit state reset – IGBT ON and conducting current.
C3: Normal operation – IGBT ON and conducting current.
C4: Under-voltage trip (UVDBt).
C5: IGBT OFF regardless of the control input level, but there is no FO signal output.
C6: Under-voltage reset (UVDr).
C7: Normal operation – IGBT ON and conducting current.
Recommended MCU I/O Interface Circuit
Recommended Wiring Around the Shunt Resistor
VNC
VNO
NW
NV
NU
DIP-IPM
Wiring inductance should be less than 10nH.
(Equivalent to the inductance of a copper pattern with
length = 17mm, width = 3mm, and thickness = 100
Mm.)
Shunt
Resistors
Please make the connection of shunt resistor
close to VNC and VNO terminals.
UP, VP, WP, UN, VN, WN
MCU
5V LINE
10k 7
2.5k 7 (MIN)
F
O
VNC (LOGIC)
DIP-IPM
NOTE: RC coupling at each input
(parts shown dotted) may change
depending on the PWM control
scheme used in the application and
the wiring impedance of the printed
circuit board. The DIP-IPM input
signal section integrates a 2.5k
7
(min) pull-down resistor. Therefore,
when using an external filtering
resistor, care must be taken to
satisfy the turn-on threshold voltage
requirement.
Under-Voltage Protection (Upper-arm, UV
DB
)