Product # BQ57120QEx50

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-0006201 Rev. C

07/21/15

Page 5

Technical Specification

Input:

40-65 V

Output:

9.3-16.25 V

Current:

50A

Package:

Quarter-brick

BQ57120QEx50 Electrical Characteristics (continued)

Ta = 25 °C, airflow rate = 300 LFM, Vin = 52.5 V dc unless otherwise noted; full operating temperature range is -40 °C to +100 °C ambient

temperature with appropriate power derating. Specifications subject to change without notice.

Parameter

Min.

Typ.

Max.

Units Notes & Conditions

DYNAMIC CHARACTERISTICS

Output Voltage during Load Current Transient

Step Change in Output Current (0.1 A/µs)

350

mV

50% to 75% to 50% Iout max

Settling Time

100

µs

To within 1% Vout nom

Turn-On Transient

Turn-On Time (with 5 mF output capacitance)

15

25

ms

Half load, Vout=90% nom.

Start-Up Inhibit Time

200

ms

-40 °C to +125 °C; Figure E

Output Voltage Overshoot

0

%

5 mF load capacitance

ISOLATION CHARACTERISTICS

Isolation Voltage (dielectric strength)

2000

V

See Absolute Maximum Ratings

Isolation Resistance

30

MΩ

Isolation Capacitance (input to output)

470

pF

See Note 3

Semiconductor Junction Temperature

125

°C

Package rated to 150 °C

Board Temperature

125

°C

UL rated max operating temp 130 °C

Transformer Core Temperature

125

°C

Maximum Baseplate Temperature, Tb

100

°C

FEATURE CHARACTERISTICS

Switching Frequency

175

200

225

kHz

ON/OFF Control (Option P)

Off-State Voltage

-1

0.8

V

On-State Voltage

2.4

18

V

ON/OFF Control (Option N)

On-State Voltage

-1

0.8

V

Off-State Voltage

2.4

18

V

ON/OFF Control (Either Option)

Application notes Figures A & B

Pull-Up Voltage

5

V

Pull-Up Resistance

124

kΩ

Over-Temperature Shutdown OTP Trip Point

135

°C

Average PCB Temperature

Over-Temperature Shutdown Restart Hysteresis

10

°C

RELIABILITY CHARACTERISTICS

Calculated MTBF (Telcordia) TR-NWT-000332

4.8

Calculated MTBF (MIL-217) MIL-HDBK-217F

3.3

Field Demonstrated MTBF

Note 1: UL’s product certification tests were carried out using 20 A fast blow fuse. Fuse interruption characteristics have to be taken into account while

Note 2: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: support@synqor.com)

Note 3: Isolation capacitance can be added external to the module.