Datasheet

MAX5915/MAX5915A/MAX5916/MAX5916A
Dual PCI 2.2 Hot-Swap Controllers
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PIN NAME FUNCTION
1 +12VOA Channel A +12V Output
2 3.3VGATEA Channel A +3.3V External N-Channel MOSFET Gate Drive. 3.3VGATEA driven by +12VIN.
3 3.3VSENA Channel A External 3.3V Current-Sense Input
4 3.3VOA Channel A +3.3V Output Sense
5 ONA
Channel A Master ON/OFF Output Control. Drive ONA logic high to enable channel A +3.3V, +5V, and
±12V outputs. V
+12VIN
must be > UVLO threshold.
6 ONB
Channel B Master ON/OFF Output Control. Drive ONB logic high to enable channel B +3.3V, +5V, and
±12V outputs. V
+12VIN
must be > UVLO threshold.
7 GND Ground
8 PGOODA
Channel A Power-Good Output. PGOODA is an open-drain output that pulls low when a fault is detected on
channel A outputs.
9 PGOODB
Channel B Power-Good Output. PGOODB is an open-drain output that pulls low when a fault is detected on
channel B outputs.
10 AUXONA
Channel A 3.3VAUX ON/OFF Control Input. Drive AUXONA logic high to enable channel A +3.3V auxiliary
output.
11 AUXONB
Channel B 3.3VAUX ON/OFF Control Input. Drive AUXONB logic high to enable channel B +3.3V auxiliary
output.
12 3.3VAUXOA Channel A 3.3VAUX Output
13 3.3VAUXIN 3.3VAUX Input. Provides power to the +3.3V auxiliary channels.
14 3.3VAUXOB Channel B 3.3VAUX Output
15 -12VOB Channel B -12V Output
16 -12VIN -12V Input
17 -12VOA Channel A -12V Output
18 5VOB Channel B +5V Output Sense
19 5VSENB Channel B External +5V Current-Sense Input
20 5VGATEB Channel B +5V External N-Channel MOSFET Gate Drive. 5VGATEB driven by +12VIN.
21 5VOA Channel A +5V Output Sense
22 5VSENA Channel A External +5V Current-Sense Input
23 5VGATEA Channel A +5V External N-Channel MOSFET Gate Drive. 5VGATEA driven by +12VIN.
24 3.3VOB Channel B +3.3V Output Sense
25 3.3VSENB Channel B External +3.3V Current-Sense Input
26 3.3VGATEB Channel B +3.3V External N-Channel MOSFET Gate Drive. 3.3VGATEB driven by +12VIN.
27 +12VOB Channel B +12V Output
28 +12VIN +12V Input. +12VIN powers the main supplies of the MAX5915/MAX5915A/MAX5916/MAX5916A.
Pin Description