Table 2-5 Recommended Operating Conditions for
BQ25758EVM and BQ25758AEVM
|
Description |
MIN |
TYP |
MAX |
UNIT |
VIN
(J1) |
Input
voltage to the EVM |
4.2 |
|
55(1) |
V |
VOUT
(J3) |
Output
voltage of the EVM |
3.3 |
|
55(1) |
V |
IIN
(J1) |
Input
current of the EVM |
|
|
10(3)(4) |
A |
IOUT
(J3) |
Output
current of the EVM |
|
|
10(3) |
A |
Regulator output power |
Output
power of the EVM |
|
|
400(3) |
W |
EXT_DRV
(J6) |
Voltage
applied to DRV_SUP pin of the regulator |
4 |
|
11 |
V |
EVM
operating ambient temperature (TA) |
|
|
25(2) |
|
°C |
(1) Due to the high di/dt and dv/dt electrical flow
associated with switch-mode power supplies, nodes on the EVM can have high spike
above input voltage (in buck mode) or output voltage (in boost mode) level.
Switch node voltage can swing up to "input or output + inductive spike" level.
High side gate drives can swing up to "switch node voltage + 11V (DRV_SUP supply
voltage dependent) + gate drive inductive spike" level. Safety precautions must
be observed at all times.
(2) Connectors, bump-ons, jumpers on the EVM are not a good choice for evaluation under temperature greatly deviated from room temperature of 25°C. Please refer to BOM for temperature rating of board components.
(3) Thermal monitoring (for example, using a thermal
camera) is recommended if power stage output current > 5A or total output
power > 100W.
(4) Default EVM input current limit is set to 8A
through the IIN pin. The current limiting feature can be disabled by setting
EN_IIN_PIN bit to '0', changing IIN pin resistor, or shorting IIN pin to PGND
through JP11.