NCD57253GEVB
www.onsemi.com
2
PIN Description
Table 1. EVALUATION BOARD PIN DESCRIPTION
Pin Name
Pin Number
Description
INA
17, 24
Channel A input signal
INB
15, 26
Channel B input signal
DIS
19, 22
Disable signal input (active High)
+5V
21, 20
Driver primary side power supply
VCC
23, 18
DC/DC sources alternative power supply (optional)
GND
25, 16
Primary side power/signal ground
VCCA
39, 40
A channel positive power supply
GNDA
37, 38
A channel Ground
VEEA
35, 36
A channel negative power supply
E
−
A
33, 34
Source connection of A channel – connected to GNDA
G
−
A
31, 32
Gate connector of A channel
VCCB
1, 2
B channel positive power supply
GNDB
3, 4
B channel Ground
VEEB
5, 6
B channel negative power supply
E
−
B
7, 8
Source connection of B channel – connected to GNDB
G
−
B
9, 10
Gate connection of B channel
ON
−
BOARD Jumpers Functional Table
Table 2. NCD57253 JUMPERS FUNCTIONAL TABLE
Jumper Name
Setup
Description
VIN SET
OPEN
When using external power supplies for VCCA / VCCB
Power supplies need to be connected to the VCCA, VCCB pins on P1
+5V
When using dc
−
dc converter powered by the same voltage as the primary side of the driver
VCC pin on P1 can be unconnected
VCC
When using dc
−
dc converter powered by different voltage as the primary side of the driver
Power supply for dc
−
dc converter need to be connected to the VCC pin on P1
ANB SET
ON
When complementary output signals need to be generated from a single input signal
OFF
Output signals are in phase with input signals
DT SET
DT
Dead time and interlocking logic between INA and INB is defined by the value of the external
resistor (R7)
OFF
Interlocking logic disabled, no dead time applied
FLOAT
Dead time and interlocking logic between INA and INB are set internally to the minimum value
(see the datasheet)
B
−
IN SET
INA
When ANB SET is ON – both inputs are connected together
INB
When ANB SET is OFF
