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參數(shù)資料
| 型號： | TMP815PWR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | AC MOTOR CONTROLLER, PDSO16 |
| 封裝： | PLASTIC, TSSOP-16 |
| 文件頁數(shù)： | 7/13頁 |
| 文件大?。?/td> | 389K |
| 代理商： | TMP815PWR |
TMP815
www.ti.com........................................................................................................................................................................................................ SLDS153 – MAY 2009
TERMINAL FUNCTIONS
TERMINAL
I/O
DESCRIPTION
NAME
NO.
OUT2P
1
O
Upper-side driver output
OUT2N
2
O
Lower-side driver output
Power supply
For the power stabilization capacitor on the signal side (see *2 in Figure 1), use the capacitance
of 1
F or more. Connect V
CC and GND with a thick and short pattern.
VCC
3
For the power stabilization capacitor on the power side (see *3 in Figure 1), use the capacitance
of 1
F or more. Connect the power supply on the power side and GND with a thick and short
pattern.
Current limiting detection (see *8 in Figure 1)
SENSE
4
I
When the pin voltage exceeds 0.2 V, the current is limited, and the operation enters the lower
regeneration mode. Connect to GND if not used.
Minimum speed setting (see *6 in Figure 1)
If the device power supply is likely to be turned off first when the pin is used with external power
RMI
5
I
supply, insert a current-limiting resistor to prevent inflow of large current (also applies to VTH
terminal). Connect to 5VREG with a pullup resistor if not used.
Speed control (see *7 in Figure 1)
For control with pulse input, insert a current-limiting resistor and use the pin with a frequency of
VTH
6
I
20 kHz to 100 kHz (20 kHz to 50 kHz recommended). For the control method, see Figure 2.
Connect to GND if not used (at full speed).
Connection to capacitor for generation of PWM basic frequency (see *5 in Figure 1)
CP = 220 pF causes oscillation at f = 30 kHz, which is the basic frequency of PWM. As this is
CPWM
7
O
used also for the current-limiting canceling signal, be sure to connect the capacitor even when
speed control is not used.
Rotation speed detection pin (see *9 in Figure 1)
FG
8
O
This is an open-collector output, which can detect the rotation speed from the FG output
according to the phase change over. Keep this pin open when not used.
IN–
9
I
Hall input (*4)
Hall input. Make connecting traces as short as possible to prevent carrying of noise. To futher
limit noise, insert a capacitor between IN+ and IN–. The Hall input circuit is a comparator having
IN+
10
I
a hysteresis of 15 mV. Also includes a soft-switch section with ±30-mV input-signal differential
voltage. It is recommended that the Hall input level is a minimum of 100 mVp-p.
Connection to the lock detection capacitor (see *10 in Figure 1)
The constant current charge and discharge circuits cause locking when the pin voltage rises to
CT
11
O
3 V and unlocking when pin voltage falls to 1.1 V. Connect to GND when not used (when locking
is not necessary).
Connection to the soft-start setting capacitor (see *11 in Figure 1)
S-S
12
I
Connect the capacitor between S-S and 5VREG to set the soft-start time, according to the
capacitance that is chosen (see Figure 3 and Figure 4). Connect to GND when not used.
5VREG
13
O
5-V regulator output
System ground (see *1 in Figure 1)
SGND
14
Connection to the control-circuit power-supply system
OUT1N
15
O
Lower-side driver output
OUT1P
16
O
Upper-side driver output
Copyright 2009, Texas Instruments Incorporated
3
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