參數(shù)資料
型號(hào)： TPIC2101D
廠商： TEXAS INSTRUMENTS INC
元件分類： 運(yùn)動(dòng)控制電子
英文描述： BRUSH DC MOTOR CONTROLLER, 0.05 A, PDSO14
封裝： SOIC-14
文件頁(yè)數(shù)： 20/21頁(yè)
文件大?。?/td> 381K
代理商： TPIC2101D
TPIC2101
DC BRUSH MOTOR CONTROLLER
SLIS060 – OCTOBER 1995
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
over/under voltage operating
The TPIC2101 detects an over or under voltage condition (on the Vbat terminal) and turns off the gate drive
circuit. The device remains in this condition until the supply voltage returns to normal operating voltage.
Hysteresis assures that the over/under voltage condition does not toggle off and on near the threshold. The INT
terminal pulls toward GND through an internal impedance of less than 500
during the over-voltage condition
or during sleep state. This ensures a slow ramp up of the GD terminal PWM when the Vbat voltage returns to
the operating range.
current limit operation
An over-current condition is detected if the ILS terminal is higher than the ILR terminal while the gate drive (GD
terminal) is high. This condition activates a closed-loop control, causing the INT terminal to be pulled low
(through an internal resistance less than 500
) lowering the commanded duty cycle to close the loop.
current fault operation
During a window of 8192 clock cycles, a latch is set if at least once during the window, a current limit condition
is detected. If a current limit condition is set for eight consecutive 8192 clock cycle windows, the gate drive (GD
terminal) will be shut off for a disable period of 65536 clock cycles. During the disable period, the INT terminal
is pulled to GND through an internal resistance of less than 500
. After the disable period is completed, an
internal restart is attempted. If the current limit is present again, as described above, for 8 consecutive windows,
the GD and INT terminals are again pulled to GND and the device remains in this current fault state until the
device is cycled through a sleep state to run state. However, if the current limit condition is not present during
any of the eight 8192 clock cycle windows, the latches for the 8 count window timer and the two cycle
shutdown/restart are reset. See timing diagrams, Figures 6, 7, and 8.
absolute maximum ratings over the operating free-air temperature range (unless otherwise
noted)
Supply voltage range, Vbat
– 0.3 V to 40 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, MAN, AUTO
– 0.3 V to 40 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, INT CCS, ILR
– 0.3 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous gate drive output current, IGD
±50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous speed output current, IO(SPEED)
±1 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, IO(V5P5), IO(AREF)
20 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous ROSC output Current, IO(ROSC)
1 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, IO(CCS)
500
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance, junction to ambient, RΘJA: D package
131
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package
78
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air termperature range, TA
–40
°C to 105°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum junction temperature, TJM
150
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
–65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
Under load dump conditions, the voltage on Vbat can reach 40 V within 1 ms.
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