TB6549HQ Toshiba, TB6549HQ Datasheet - Page 6

• Manufacturer Part Number: TB6549HQ
• Description: IC DRIVER FULL BRIDGE 25HZIP
• Manufacturer: Toshiba
• Type: Full Bridge Motor Driverr

Specifications of TB6549HQ

• Applications: DC Motor Driver, H Bridge
• Number Of Outputs: 2
• Voltage - Supply: 10 V ~ 27 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 25-HZIP
• Operating Supply Voltage: 10 V to 27 V
• Supply Current: 10 mA
• Mounting Style: Through Hole
• Functions: Driver
• Vopmax (vm*): 27V (30V)
• Io (lpeak): 3.5A (4.5A)
• Channel: 1-ch
• Pwm Drive: direct PWM
• Package: HZIP25
• Rohs Compatible†: yes‡
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: TB6549HQ(O)

Component Description
Input/Output Function
1. Control Input/PWM Input Circuit
IN1
H/L
H
H
L
L
•
•
•
The input signals are shown below. Input at the CMOS and TTL levels can be provided. Note that the
input signals have a hysteresis of 0.2 V (typ.).
The PWM input frequency should be 100 kHz or less.
PWM control function
Motor speed can be controlled by inputting the 0/5-V PWM signal to the PWM pin.
When PWM control is provided, normal operation and short brake operation are repeated.
If the upper and lower power transistors in the output circuit were ON at the same time, a penetrating
current would be produced. To prevent this current from being produced, a dead time of 300 ns (design
target value) is provided in the IC when either of the transistors changes from ON to OFF, or vice versa.
Therefore, PWM control by synchronous rectification is enabled without an OFF time being inserted by
external input. Note that a dead time is also provided in the IC at the time of transition between CW
and CCW or between CW (CCW) and short brake mode, thereby eliminating the need for an OFF time.
IN2
H/L
V
V
H
H
L
L
INH
INL
Input
: GND to 0.8 V
: 2 to 5.5 V
(IN2, PWM)
SB
H
H
H
H
L
IN1
PWM
H
H
H
H
H
L
L
L
L
L
Surge protection
V
reg
OUT1
H
L
L
L
L
(high impedance)
(high impedance)
100 kΩ
OFF
OFF
6
OUT2
V
reg
H
L
L
L
L
Output
Short brake
Short brake
Short brake
CW/CCW
CCW/CW
TB6549FG/PG/HQ
Standby
Mode
Stop
2010-07-13