Datasheet

E-mail:

dcdc@deltaww.com

DS_Q48SC12033_04062017

http://www.deltaww.com/dcdc

P3

ECHNICAL SPECIFICATIONS

DIGITAL INTERFACE SPECIFICATIONS

PIN DEFINATION

Pin#

Name

Function

Pin#

Name

Function

1

VIN(+)

9

VOUT(+)

2

ON/OFF

Primary on/off

control pin

10

C2

PGOOD pin, and this pin also could be configurated as secondary on/off control pin

3

Case

11

SIG_GND

Signal ground

4

VIN(-)

12

DATA

PMBus data line

5

VOUT(-)

13

SMBALERT

PMBus SMBAlert line

6

SENSE(-)

Remote sense

14

CLOCK

PMBus clock line

7

TRIM

Trim

note 3

15

ADDR1

ADDR1 pin sets the high order digit of the address.

8

SENSE(+)

Remote sense

16

ADDR0

ADDR0 pin sets the low order digit of the address.

Note3: see the last page.

PARAMETER

NOTES and CONDITIONS

Q48SC12033

Min.

Typ.

Max.

Units

FEATURE CHARACTERISTICS

Switching Frequency

130

KHz

ON/OFF Control, Remote On/Off logic

Default Negative logic

Logic Low (Module On)

Von/off at Ion/off=1.0mA

-0.7

0.8

V

Logic High (Module Off)

Von/off at Ion/off=0.0 µA

3.5

50

V

ON/OFF Current (for both remote on/off logic)

Ion/off at Von/off=0.0V

0.5

mA

GENERAL SPECIFICATIONS

MTBF

Io=80% of Io max; Ta=25°C; Airflow=300LFM

4.5

M

Weight(without heat spreader)

50

grams

Weight(with heat spreader)

65

grams

Over-Temperature Shutdown

(Without heat spreader)

Refer to Figure 22 for Hot spot 1 location

(48Vin,80% Io, 200LFM,Airflow from Vin+ to Vin-)

125

°C

Over-Temperature Shutdown

(With heat spreader)

Refer to Figure 24 for Hot spot 2 location

(48Vin,80% Io, 200LFM,Airflow from Vin+ to Vin-)

117

°C

Over-Temperature Shutdown

( NTC resistor )

Refer to Figure 22 for NTC resistor location

125

°C

Note1: Please attach thermocouple on NTC resistor to test OTP function, the hot sp

ots’ temperature is just for reference. And the OTP is Adjustable via PMBus.

Note2: Output voltage range 5.8% for remote sense-; Output voltage range 10% for remote sense+.

PARAMETER

NOTES and CONDITIONS

Q48SC12033

Min.

Typ.

Max.

Units

PMBUS SIGNAL INTERFACE CHARACTERISTICS

Input High Voltage (CLK, DATA)

2.1

3.3

Vdc

Input Low Voltage (CLK, DATA)

0

0.8

Vdc

Input high level current (CLK, DATA)

-10

10

uA

Input low level current (CLK, DATA)

-10

10

uA

Output Low Voltage (SMBALERT#)

SMBALERT, sink current 2mA

0.4

Vdc

Output high level open drain leakage current

(SMBALERT#)

SMBALERT, 3.6V

0

10

uA

PMBus Operating frequency range

100 or 400

kHz

Measurement System Characteristics

Output current reading accuracy

16.5A<IOUT<33A

-5

1.4

3

%

1A<IOUT<16.5A

-1.7

2.5

A

VOUT reading accuracy

1

%

VIN reading accuracy

-2

+2

Vdc

Temperature sense range

0

°C

Temperature reading accuracy

-5

+5

°C