Datasheet

MAX5915/MAX5915A/MAX5916/MAX5916A
Dual PCI 2.2 Hot-Swap Controllers
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
-12VIN
= -12V, V
+12VIN
= +12V, V
3.3VAUXIN
= +3.3V, V
ON_
= V
AUXON_
= +5V, T
A
= T
MIN
to T
MAX
, unless otherwise specified.
Typical values are at T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
+5V SUPPLY CONTROL
Gate Charge Current I
5VGATE
_
,
CHG
V
5VGATE
_ = +6V, V
5VSEN
_ = +5V,
V
5VO
_ = +5V
51530µA
Gate Discharge Current I
5VGATE
_
, DIS
V
5VGATE
_ = +12V, V
ON
_ = 0V 50 150 250 µA
Gate High Voltage V
5VGATE
_
,
HIGH
I
5VGATE
_ = 1µA
V
+12VIN
-
0.5V
V
+12VIN
V
Gate Low Voltage V
5VGATE
_
,
LOW
I
5VGATE
_ = 1µA, V
ON
_ = 0V 0.1 0.4 V
5VO_ Input Bias Current I
5VO
_
, BIAS
V
5VO
_ = +5V 20 µA
5VO_ Internal Pulldown R
5VO
_
, PD
V
ON
_ = 0V 1 kΩ
5VSEN_ Input Bias Current I
5VSEN
_
, BIAS
V
5VSEN
_ = +5V 10 µA
Current-Limit Threshold V
5VO
_
, LIM
V
5VGATE
_ falling 27 31 35 mV
Output Undervoltage Threshold V
5VO
_
, UV
Output falling 4.34 4.50 4.70 V
Output Undervoltage Threshold
Hysteresis
45 mV
+12V SUPPLY CONTROL
T
A
= +25°C, I
D
= 0.5A 0.32 0.38
On-Resistance of Internal Switch R
DS(ON), +12V
T
A
= +85°C, I
D
= 0.5A 0.5
Ω
Foldback Current Limit I
+12VIN, LIM
V
+12VO
_ = 0V 0.68 1 1.36 A
Current-Foldback Threshold Output current rising (Note 2) 1.4 A
Output Undervoltage Threshold V
+12VO
_
, UV
Output falling 10.00 10.4 10.82 V
+12VO_ Internal Pulldown R
+12VO
_
, PD
V
ON
_ = 0V 1 kΩ
-12V SUPPLY CONTROL
T
A
= +25°C, I
D
= 0.1A 0.58 0.9
On-Resistance of Internal Switch R
DS(ON), -12V
T
A
= +85°C, I
D
= 0.1A 1.3
Ω
Foldback Current Limit I
-12VIN, LIM
V
-12VO_
= 0V 136 205 273 mA
Current-Foldback Threshold Output current rising (Note 2) 240 mA
-12VO_ Internal Pullup R
-12VO_, PU
V
ON_
= 0V 1 kΩ
+3.3VAUX SUPPLY CONTROL
Input Voltage Range V
3.3VAUXIN
3.0 3.3 3.6 V
3.3VAUXIN Undervoltage
Lockout
V
UVLO, AUX
Input rising 2.65 2.75 2.85 V
Hysteresis V
UVLO-AUX
,
HYS
30 mV
Supply Current I
Q, 3.3VAUX
12mA