Minimum current for transient load response testing only. Unit is designed to operate and be within output regulation range at zero load.
DS1100PED Data Sheet
Electrical Specifications
Protections
Main Output
Overcurrent protection
2
Overvoltage protection
1
Undervoltage protection
Overtemperature protection
Fan fault protection
Standby Output
Overcurrent protection
3
Overvoltage protection
3
Undervoltage protection
1
2
3
MIN
120%
13.5 V
10.5 V
NOM
MAX
150%
15.0 V
11.0 V
Yes
Yes
120%
13.5 V
10.0 V
150%
15.0 V
11.0 V
Latch mode
Autorecovery if the overcurrent is less than 120% and last only for <500 ms
Standby protection is auto-recovery
Power Derating
DS1100PED-3
1200
DS1100PED-3-001
Output Power at 90Vac
1100
1000
900
800
700
600
500
10
20
30
40
50
60
Ambient Temperature (degC)
Ordering Information
Model Number
Nominal Main Output
Standby Output
Airflow Direction
DS1100PED-3
DS1100PED-3-001
1
12 V
12 V
12 V @ 3 A
12 V @ 3 A
Std (forward)
Reverse
1
Derating may apply
DS1100PED Data Sheet
Control and Status Signals
Input Signals
PSON_L
Active LOW signal which enables/disables the main output. Pulling this signal LOW will turn-on the main output. Recommended pull-up resistor to 12 VSB is 8.2 k
with a 3.0 k pull-down to ground. A 100 pF decoupling capacitor is also recommended.
MIN
V
IL
V
IH
I
SOURCE
I
SINK
PSKILL_L
First break/last mate active LOW signal which enables/disables the main output. This signal will have to be pulled to ground at the system side with a 220 ohm
resistor. A 100 pF decoupling capacitor is also recommended.
MIN
V
IL
V
IH
I
SOURCE
I
SINK
Input logic level LOW
Input logic level HIGH
Current that may be sourced by this pin
Current that may be sunk by this pin at low state
2.0 V
MAX
0.8 V
5.0 V
2 mA
0.5 mA
Input logic level LOW
Input logic level HIGH
Current that may be sourced by this pin
Current that may be sunk by this pin at low state
2.0 V
MAX
0.8 V
5.0 V
2 mA
0.5 mA
Output Signals
ACOK
Signal used to indicate the presence of AC input to the power supply. A logic level HIGH will indicate that the AC input to the power supply is within the operating
range while a logic level LOW will indicate that AC has been lost.
This is an open collector/drain output. This pin is pulled high by a 1.0 kohm resistor connected to 3.3 V inside the power supply. It is recommended that this pin be
connected to a 100 pF decoupling capacitor and pulled down by a 100 kohm resistor.
MIN
V
IL
V
IH
I
SOURCE
I
SINK
PWR_GOOD / PWOK
Signal used to indicate that main output voltage is within regulation range. The PWR_GOOD signal will be driven HIGH when the output voltage is valid and will be
driven LOW when the output falls below the under-voltage threshold.
This signal also gives an advance warning when there is an impending power loss due to loss of AC input or system shutdown request. More details in the Timing Section.
This is an open collector/drain output. This pin is pulled high by a 1.0 kohm resistor connected to 3.3 V inside the power supply. It is recommended that this pin be
connected to a 100 pF decoupling capacitor and pulled down by a 10 kohm resistor.
MIN
V
IL
V
IH
I
SOURCE
I
SINK
Input logic level LOW
Input logic level HIGH
Current that may be sourced by this pin
Current that may be sunk by this pin at low state
2.0 V
MAX
0.8 V
5.0 V
3.3 mA
0.7 mA
Input logic level LOW
Input logic level HIGH
Current that may be sourced by this pin
Current that may be sunk by this pin at low state
2.0 V
MAX
0.6 V
5.0 V
3.3 mA
0.7 mA
DS1100PED Data Sheet
Control and Status Signals
Output Signals
PS_PRESENT_L
Signal used to indicate to the system that a power supply is inserted in the power bay. This pin is shorted to the standby return in the power supply. Recommended
pull-up resistor to 12 VSB is 8.2 k with a 3.0 k pull-down to ground. A 100 pF decoupling capacitor is also recommended.
PS_INTERRUPT_L
Active low signal used by the power supply to indicate to the system that a change in power supply status has occurred. This event can be triggered by faults such
as OVP, OCP, OTP, and fan fault. This signal can be cleared by a CLEAR_FAULT command. Recommended pull-up resistor to 12 VSB is 8.2 k with a 3.0 k
pull-down to ground. A 100 pF decoupling capacitor is also recommended.
MIN
V
IL
V
IH
I
SOURCE
I
SINK
Input logic level LOW
Input logic level HIGH
Current that may be sourced by this pin
Current that may be sunk by this pin at low state
2.0 V
MAX
0.8 V
5.0 V
4 mA
4 mA
BUS Signals
ISHARE
Bus signal used by the power supply for active current sharing. All power supplies configured in the system for n+n sharing will refer to this bus voltage inorder to
load share.
Voltage Range
I
SHARE
Voltage
The range of this signal for active sharing will be up to 8.0 V, which corresponds to the maximum output current.
MIN
Vshare at 100% load, stand-alone unit
Voltage at 50% load, stand-alone unit
Voltage at 0% load, stand-alone unit
I
SOURCE
SCL, SDA
Clock and data signals defined as per I
2
C requirements. It is recommended that these pins be pulled-up to a 2.2 kohm resistor to 3.3 V and a 100 pF decoupling
capacitor at the system side.
VL
VH
Input logic level LOW
Input logic level HIGH
2.0 V
0.8 V
5.0 V
Current that may be sourced by this pin
7.75
3.85
0
MAX
8.25
4.15
0.3
160 mA
Note:
All signal noise levels are below 300 mVpk-pk from 0 - 100 MHz.
I
2
C Addressing Table: Not applicable. This power supply has a fixed I
2
C address. In order to support multiple addresses, the system will have to utilize a switcher or an I
2
C expander.
DS1100PED Data Sheet
Electrical Specifications
LED Indicators
A single bi-color LED is used to indicate the power supply status.
Status LED
No AC input to PSU
Main output ON
Standby mode or Power supply failure (OCP, OVP, OTP, FAN FAULT)
Off when stand-alone, blinking AMBER when in parallel