DRV8850_16 Datasheet, PDF (5/30 Pages) Texas Instruments – Low-Voltage H-Bridge IC with LDO Voltage Regulator

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DRV8850
SLVSCC0B – NOVEMBER 2013 – REVISED DECEMBER 2015
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
V_CC
V_IN
I_OUT
I_OUT
f_PWM
T_A
Device power supply voltage
Logic level input voltage
H-bridge continuous output current⁽¹⁾
H-bridge peak output current ⁽¹⁾
Externally applied PWM frequency
Ambient temperature
(1) Power dissipation and thermal limits must be observed
MIN
MAX
UNIT
2
5.5
V
0
V_CC
V
0
5
A
0
8
A
0
50
kHz
–40
85
°C
6.4 Thermal Information
THERMAL METRIC⁽¹⁾
DRV8850
RGY (VQFN)
UNIT
24 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
39.1
°C/W
41.1
°C/W
15
°C/W
0.6
°C/W
14.9
°C/W
3.2
°C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report, SPRA953.
6.5 Electrical Characteristics
T_A = 25°C, over recommended operating conditions unless otherwise noted
PARAMETER
TEST CONDITIONS
POWER SUPPLIES (VCC)
I_VCC
I_VCQ1
VCC operating supply current,
LDO regulator and driver enabled
VCC sleep mode supply current
V_CC = 4.2 V,
nSLEEP = LDOEN = V_CC
V_CC = 4.2 V, nSLEEP = LDOEN = 0 V,
INXH = INXL = 0 V
I_VCQ2
VCC operating supply current,
LDO regulator enabled, driver
disabled ⁽¹⁾
V_CC = 4.2 V, nSLEEP = 0 V,
LDOEN = V_CC, INXH = INXL = 0 V
I_VCQ3
VCC operating supply current
LDO voltage regulator disabled,
driver enabled
V_CC = 4.2 V, nSLEEP = V_CC,
LDOEN = 0 V
V_UVLO
VCC undervoltage lockout voltage ^{VCC rising}
V_CC falling
V_OVLO
VCC overvoltage lockout voltage
V_CC rising
V_CC falling
LOGIC-LEVEL INPUTS (LDOEN, IN1H, IN1L, IN2H, IN2L, nSLEEP)
V_IL
V_IH
V_HYS
I_IL
I_IH
Input low voltage
Input high voltage
Input hysteresis
Input low current
Input high current
V_IN = 0
V_IN = 3.3 V
MIN
5.6
5.5
0
0.5 × V_CC
–1
NOM
2.9
40
2.9
0.08 × V_CC
MAX UNIT
mA
1 μA
μA
mA
2
V
1.95
V
0.2 × V_CC V
V_CC V
V
1 μA
50 μA
(1) Does not include the current consumption from the feedback resistors.
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