THMC45 Datasheet, PDF (4/16 Pages) Texas Instruments – 5-V AND 3.3-V DC BRUSHLESS FAN MOTOR DRIVER WITH SINGLE WIRE CONTOL

THMC45
5ĆV AND 3.3ĆV DC BRUSHLESS FAN MOTOR DRIVER
WITH SINGLE WIRE CONTROL
SLIS101A − MAY 2001
dc electrical characteristics, V_PWR = 5V, T_A = −30°C to 80°C (unless otherwise noted)
supply current
PARAMETER
V_PWR
Supply voltage normal operation
Supply voltage functional with derated
performance
VPOR Power-on reset voltage threshold
I_VPWR V_PWR supply current
I_REV Reverse leakage
ISLEEP Sleep-state current
TEST CONDITIONS
Increase V_PWR until logic active
IL = 0 A
Idle condition, in locked rotor detect
VPWR = −5 V at TA = 25°C
VPWM = 0 V for >2 ms
MIN TYP MAX UNIT
4.5
5 5.5
V
2.4
4.5
1.5
V
0.5 1.5
mA
0.5 1.5
5
mA
75 300 µA
Hall sensor signal conditioning
PARAMETER
IIB(HL) Input bias current
VICR(HL) ICR(HL) common mode input voltage range
VIO
Hall amplifier input offset voltage
NOTE 5: Design target only. Not tested in production.
TEST CONDITIONS
See Note 5
OUTA, OUTB phase winding driver outputs
PARAMETER
ILEAK
OUTA, OUTB output leakage current
RDSON(Low)
OUTA, OUTB low-side output ON
resistance
OUTA, OUTB high-side output ON
RDSON(High) _resistance
RDSON
OUTA, OUTB low-side output ON
resistance
OUTA, OUTB high-side output ON
resistance
TEST CONDITIONS
VPWM = 0 V for >2 ms,
VOUTx = 5 V
IOUTx = 200 mA,
TA = 25°C
IOUTx = −200 mA,
TA = 25°C
IOUTx = 100 mA,
TA = 25°C,
IOUTx = −100 mA,
TA = 25°C,
sleep state,
VPWR = 2.4 V
VPWR = 2.4 V
MIN TYP MAX UNIT
−1
1 µA
1
3.5 V
−20
0
20 mV
MIN TYP MAX UNIT
−1
1 µA
1.6 2.5 Ω
1.9 2.5 Ω
3
6Ω
3.5
6Ω
PWM input/TACH pulse output
PARAMETER
VIH
VIL
IIH
IIL
VOL
PWM high-level input voltage
PWM low-level input voltage
PWM high-level input current
PWM low-level input current
PWM input tachometer pulse output low voltage
TEST CONDITIONS
VPWM = 5 V
VPWM = 0 V
IPWM = 2 mA
MIN TYP MAX UNIT
2
V
0.8 V
−1
1 µA
75 200 µA
0.4 V
TACH open-drain output
PARAMETER
IIH
VOL
TACH output high leakage
TACH output low voltage
TEST CONDITIONS
VTACH = V_PWR
ITACH = 5 mA
MIN TYP MAX UNIT
−1
1 µA
400 mV
4
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