DRV8305_15 Datasheet, PDF (6/53 Pages) Texas Instruments – DRV8305 Three Phase Gate Driver With Current Shunt Amplifiers and Voltage Regulator

DRV8305
SLVSCX2A – AUGUST 2015 – REVISED SEPTEMBER 2015
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6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN
V_PVDD
Power supply voltage range
4.4
V_PVDD
Power supply voltage range for voltage regulator operation
4.3
V_PVDDRAMP
Power supply voltage ramp rate (PVDD = 0 to 20 V rising <3-mA pin sink
current)
V_{PVDD-SH_X}
I_{SRC_VCPH}
C_{O_OPA}
Total voltage drop from PVDD to SH_X pins
External load on VCPH pin (current limit resistor in series to load)
Maximum external capacitive load on shunt amplifier (no external resistor on
output, excluding internal pin capacitance)
I_nFAULT
nFAULT sink current (VnFAULT = 0.3 V)
F_gate
Operating switching frequency of gate driver
I_GATE
Total average gate driver current (HS + LS) – charge pump limited
T_A
Operating ambient temperature
-40
(1) IC is fully functional and tested in the range 4.4 to 45 V.
(2) Subject to thermal dissipation limits.
MAX
45 ⁽¹⁾
45 ⁽²⁾
1
4.5
10
60
7
200
30
125
UNIT
V
V
V/µs
V
mA
pF
mA
kHz
mA
°C
6.4 Thermal Information
THERMAL METRIC ⁽¹⁾
DRV8305
PHP (HTQFP)
UNIT
48 PINS
R_θJA
R_θJC(top)
R_θJB
ψ_JT
ψ_JB
R_θJC(bot)
Junction-to-ambient thermal resistance
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
Junction-to-top characterization parameter
Junction-to-board characterization parameter
Junction-to-case (bottom) thermal resistance
26.6
°C/W
12.9
°C/W
7.6
°C/W
0.3
°C/W
7.5
°C/W
0.6
°C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report, SPRA953.
6
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