TB6588FG Toshiba, TB6588FG Datasheet - Page 3

• Manufacturer Part Number: TB6588FG
• Description: IC PWM DRVR 3PH DC MOTOR 36HSOP
• Manufacturer: Toshiba
• Type: 3 Phase Full Wave PWM Driver for Sensorless DC Motorsr

Specifications of TB6588FG

• Applications: DC Motor Driver, Brushless (BLDC), 3 Phase
• Number Of Outputs: 1
• Current - Output: 1.5A
• Voltage - Load: 7 V ~ 42 V
• Voltage - Supply: 7 V ~ 42 V
• Operating Temperature: -30°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 36-HSOP
• Product: Fan / Motor Controllers / Drivers
• Operating Supply Voltage: 24 V
• Supply Current: 8 mA
• Mounting Style: SMD/SMT
• Function: Driver
• Vopmax (vm*): 24V (50V)
• Io (lpeak): 2.5A
• Sinusoidal Current Wave: no
• Sensor-less: yes
• Speed Feedback Loop: no
• Package: HSOP36
• Rohs Compatible†: yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Pin Description
Pin No.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
CW_CCW
SEL_LAP
WAVEM
WAVEP
SGND1
SGND2
OSC_C
OSC_R
Symbol
START
FMAX
PGND
WAVE
VREF
VM1
N.C.
N.C.
VM2
VSP
IR1
IR2
OC
IR3
EN
SC
W
IP
U
V
I/O
⎯
⎯
⎯
⎯
⎯
⎯
⎯
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
Motor power supply pin (V
IC.
U-phase output
V-phase output
Rotation direction select input (This pin has a pull-up resistor.)
H or open: Clockwise (U → V → W)
L:
Protection enable input (This pin has a pull-up resistor.)
This input determines whether or not to enable the protection functionality when either of the
following conditions is true:
a) the maximum commutation frequency is exceeded.
b) the rotation speed falls below the forced commutation frequency.
H or open: Protection functionality enabled
L:
No-connect
Selects the upper limit of the maximum commutation frequency. (This pin has a pull-up resistor.)
Maximum commutation frequency (f
H or open: f
L:
Overlapping commutation select pin (This pin has a pull-up resistor.)
H or open: 120°commutation
L:
Connection pins for an output shunt resistor
(IR1 and IR2 are connected together inside the IC. However, IR3 is not connected to IR1 or IR2
inside the IC; these three pins must be connected together externally.)
No connect
W-phase output
Power ground pin
Overcurrent detection input (This pin has a pull-down resistor.)
All PWM output signals are stopped when OC ≥ 0.5 V (typ).
Positive (+) position signal input
Negative (−) position signal input
Motor power supply pin (V
IC.
Signal ground pin (SGND1 and SGND2 are connected together inside the IC.)
Position signal output
Provides a majority of the voltages of the three phase signals.
Reference voltage output; V
Duty cycle/motor speed control input (This pin has a pull-down resistor.)
0 ≤ V
V
V
Connection pin for a capacitor to set the startup commutation time and the ramp-up time for the
on state.
DC excitation time setting pins
When V
reached V
OSC_C:
OSC_R:
Example: Internal oscillating frequency (f
Connection pin for an output shunt resistor
(IR1 and IR2 are connected together inside the IC. However, IR3 is not connected to IR1 or IR2
inside the IC; these three pins must be connected together externally.)
AD
AD
(L) ≤ V
(H) < V
SP
SP
< V
REF
OSC_R = 20 kΩ
≥ 1 V (typ.), START is driven low, starting DC excitation. When the IP voltage has
SP
AD
Counterclockwise (U → W → V)
Protection functionality disabled
f
Overlapping commutation
SP
Connection pins for the oscillator capacitor
Connection pins for the oscillator resistor
MAX
MAX
/2, the TB6588FG switches to forced commutation mode.
≤ V
(L):
≤ V
∼ − f
∼ − f
AD
REF
osc
osc
(H):
:
/3 × 2
/3 × 2
M
M
REF
3
= 7 to 42 V). VM1, VM2 and VM3 are connected together inside the
= 7 to 42 V). VM1, VM2 and VM3 are connected together inside the
11
12
= 5 V (typ.)
MAX
Example: f
Example: f
Duty = 0%
Sets the PWM duty cycle, based on the analog input.
≈100% duty cycle (127/128)
): cycles per second equivalent to an electrical degree
osc
Description
) ∼ − 5.25 MHz (typ.) when OSC_C = 100 pF and
MAX
MAX
∼ − 0.8 kHz @ f
∼ − 0.4 kHz @ f
osc
osc
= 5 MHz
= 5 MHz
TB6588FG
2008-4-25