IMP2524/27
Pin Configuration
3
OUTA
INA/B
1
SO/DIP
Logic,
Charge
Pump
FLGA
2
ENA
13
FLGA
ENA
1
2
3
4
5
6
7
8
16 FLGB
15 ENB
14 OUTB
13 INA/B
12 GND
11 OUTD
10 END
16
15
FLGB
Logic,
Charge
Pump
OUTA
GND
ENB
IMP2524/27
14
6
OUTB
OUTC
IMP2524/27
INC/D
OUTC
ENC
7
ENC
Logic,
Charge
Pump
8
9
FLGC
FLGD
5
INC/D
FLGC
9
FLGD
Logic,
Charge
Pump
2524/27_02.eps
10
END
11
OUTD
4
12
GND
Pin Descriptions
GND
2524/27_03.eps
Pin Number
Name
Function
Fault Flag A output. This open-drain output goes into an active-LOW state in response to under-
voltage, current limit or thermal shutdown conditions.
1
FLGA
Enable A Input. This pin is the Channel B MOSFET switch driver control logic input. Both active-HIGH
(-1 suffix) and active-LOW (-2 suffix) logic devices are available.
2
ENA
3
4
OUTA
GND
Channel-A switch output (MOSFET Source). The output pin drives the load into ON and OFF states.
Ground. Power supply return for the internal circuitry of the IC. Connect both pins 4 and 6 together.
Channel C and D positive power supply input voltage. This is the switching MOSFET drain connection.
It is the channel C and channel D supply voltage input for the logic and the charge-pump circuit.
5
6
7
INC/D
OUTC
ENC
Channel-C switch output (MOSFET Source). The output pin drives the load into ON and OFF states.
Enable C Input. This pin is the Channel B MOSFET switch driver control logic input. Both active-HIGH
(-1 suffix) and active-LOW (-2 suffix) logic devices are available.
Fault Flag C output. This open-drain output goes into an active-LOW state in response to under-
voltage, current limit or thermal shutdown conditions.
8
9
FLGC
FLGD
END
Fault Flag D output. This open-drain output goes into an active-LOW state in response to under-
voltage, current limit or thermal shutdown conditions.
Enable D Input. This pin is the Channel B MOSFET switch driver control logic input. Both active-HIGH
(-1 suffix) and active-LOW (-2 suffix) logic devices are available.
10
11
12
OUTD
GND
Channel-D switch output (MOSFET Source). The output pin drives the load into ON and OFF states.
Ground. Power supply return for the internal circuitry of the IC. Connect both pins 4 and 6 together.
Channel A and B positive power supply input voltage. This is the switching MOSFET drain connection.
It is the channel A and channel B supply voltage input for the logic and the charge-pump circuit.
13
14
15
INA/B
OUTB
ENB
Channel-B switch output (MOSFET Source). The output pin drives the load into ON and OFF states.
Enable B Input. This pin is the Channel-B MOSFET switch driver control logic input. Both active-HIGH
(-1 suffix) and active-LOW (-2 suffix) logic devices are available.
Fault Flag B output. This open-drain output goes into an active-LOW state in response to under-
voltage, current limit or thermal shutdown conditions.
16
FLGB
2524/27t01
Ordering Information
Pin Number
IMP2524-1BWM
IMP2524-2BWM
IMP2524-1BN
IMP2524-2BN
IMP2527-1BWM
IMP2527-2BWM
IMP2527-1BN
IMP2527-2BN
Enable Logic
Typical “ON” Resistance
100mΩ
Temperature Range
–40° C to +85° C
–40° C to +85° C
–40° C to +85° C
–40° C to +85° C
–40° C to +85° C
–40° C to +85° C
–40° C to +85° C
–40° C to +85° C
Pins-Package
16-SO
Active HIGH
Active LOW
Active HIGH
Active LOW
Active HIGH
Active LOW
Active HIGH
Active LOW
100mΩ
100mΩ
100mΩ
200mΩ
200mΩ
200mΩ
200mΩ
16-SO
16-DIP
16-DIP
16-SO
16-SO
16-DIP
16-DIP
2524/27t02
6
© 2000 IMP, Inc.
2
408-432-9100/www.impweb.com
A1PROS [ A1 PROS CO., LTD. ]
