Datasheet

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PRELIMINARY
DBQ0260V2 FUNCTIONAL SPECIFICATIONS (CONT.)
PMBus
Conditions ➀
Minimum Typical/Nominal Maximum Units
PMBus GENERAL
PMBus REV. 1.2. SMBALERT# is supported. PEC is supported. Linear data format used.
Bus speed    400 kHz
Logic high input  2  3.3 Vdc
Logic low input  0  0.8 Vdc
Logic high output  2.4   Vdc
Logic low output    0.4 Vdc
PMBus ADDRESSING
If the calculated PMBus address is 0d, 11d or 12d, SA0 or SA1 lefts open, default PMBus address 119d is assigned instead. PMBus address = 8x(SA0 value) + (SA1 value). SA0, SA1 value VS
resistor connected to GND.
0   10  k
1   22  k
2   33  k
3   47  k
4   68  k
5   100  k
6   150  k
7   220  k
PMBus MONITORING ACCURACY
VIN_READ -22%
VOUT_READ -11%
IOUT_READ (> = 10A) -55%
IOUT_READ (<10A) -11A
TEMP_READ 55°C
DIGITAL INTERFACE SPECIFICATIONS (PMBUS MONITORING & FUNCTIONAL DESCRIPTION)
Fault Protection Specifi cations
Output Voltage, Over Voltage protection, OVP Factory default  6  V
VOUT_OV_FAULT_LIMIT, Confi gurable via
PMBus
>VOUT_OV_WARM_LIMIT 3  6 V

Restart delay (default, Confi gurable via PMBus)  500  µS
Input Voltage, Input Over Voltage Protection Factory default  NA  V

Setpoint accuracy    %
VIN_OV_FAULT_LIMIT (Confi gurable via
PMBus) ➃
>VIN_OV_WARM_LIMIT  NA  V

Restart delay (default, Confi gurable via PMBus)    µS
Input Voltage, Input Under Voltage Protection,
UVLO
Factory default  32  V

Setpoint accuracy -2  2 %
VIN_UV_FAULT_LIMIT (Confi gurable via
PMBus) ➃
<VIN_UV_WARM_LIMIT <VIN_OV_FAULT_LIMIT  32 75 V

Restart delay (default, Confi gurable via PMBus)  100  µS
Over Current Protection, OCP Setpoint accuracy (Io) -2.5  2.5 %

(factory default)  70  A
IOUT_OC_FAULT_LIMIT (Confi gurable via
PMBus) ➃
>IOUT_OC_WARN_LIMT 0  75 A

Restart delay (default, Confi gurable via PMBus)  100  µS
Over Temperature Protection, OTP OT_FAULT_LIMIT (factory default)  120  °C
OT_FAULT_LIMIT (Confi gurable via PMBus) ➃
>OT_WARM_LIMIT 0 30 150 °C

OTP accuracy (factory default) 5  5 °C

Restart delay (default, Confi gurable via PMBus)  500  µS
DBQ/DVQ Series
420W Digital Fully Regulated Intermediate
DC-DC Bus Converter
MDC_DBQ Series.B02Δ Page 10 of 31