max5978 Maxim Integrated Products, Inc., max5978 Datasheet - Page 9

• Manufacturer Part Number: max5978
• Description: 0 To 16v, Hot-swap Controller With 10-bit Current, Voltage Monitor, And 4 Led Drivers
• Manufacturer: Maxim Integrated Products, Inc.

PIN
10
11
12
13
14
1
2
3
4
5
6
7
8
9
Current, Voltage Monitor, and 4 LED Drivers
0 to 16V, Hot-Swap Controller with 10-Bit
SENSE
NAME
AGND
PROT
GATE
IRNG
LED1
LED2
MON
BIAS
GND
REG
A1
A0
IN
Three-State Current-Sense Range Selection Input. Set the circuit-breaker threshold range by
connecting to DGND, DREG, or leave unconnected.
Power-Supply Input. Connect to a voltage from 2.7V to 16V. Bypass IN to AGND with a 1FF
ceramic capacitor.
Analog Ground. Connect all GND and DGND to AGND externally using a star connection.
Internal Regulator Output. Bypass REG to ground with a 1FF ceramic capacitor. Connect only to
DREG and logic-input pullup resistors. Do not use to power external circuitry.
BIAS Input. Connect BIAS to REG.
Three-State I
Three-State I
Protection Behavior Input. Three-state input sets one of three different response options for
undervoltage and overvoltage events.
Current-Sense Input. Connect SENSE to the source of an external MOSFET and to one end of
R
Voltage-Monitoring Input
Gate-Drive Output. Connect to the gate of an external n-channel MOSFET.
Gate-Discharge Current Ground Return. Connect all GND and DGND to AGND externally using
a star connection.
LED1 Driver
LED2 Driver
SENSE
TOP VIEW
.
DGND
LED3
LED4
GND
2
2
I.C.
I.C.
I.C.
I.C.
C Address Input 1
C Address Input 0
25
26
27
29
30
31
32
28
24
1
+
23
2
22
3
MAX5978
TQFN
21
4
20
5
19
6
FUNCTION
EP
18
7
17
8
16 DREG
15 POL
14
13
12
11
10
9
LED2
LED1
GND
GATE
MON
SENSE
Pin Configuration
Pin Description
9