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TB67H302HG 데이터시트 PDF




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부품번호 TB67H302HG 기능
기능 Dual Bridge Driver IC
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TB67H302HG 데이터시트, 핀배열, 회로
TOSHIBA BiCD Integrated Circuit Silicon Monolithic
TB67H302HG
TB67H302HG
Dual Bridge Driver IC for DC motor
The TB67H302HG is a dual bridge driver IC for DC motor
adopting DMOS in output transistor.
High-power and high-efficient drive is possible by adopting
DMOS output driver with low-ON resistance and PWM drive.
TB67H302HG
Features
Dual bridge driver IC for DC motor
Ron (upper + lower) = 0.4Ω (typ.)
HZIP25-P-1.00F
CW/CCW/Short brake/Stop functions
Standby function
Weight
HZIP25-P-1.00F: 7.7g (typ.)
PWM control (Direct PWM or Constant-current PWM drive)
Output withstand voltage : Vcc = 50 V
Output current
: IOUT = 5.0 A (Absolute maximum ratings, peak)
IOUT = 4.5 A (Operating range, maximum value)
Package
: HZIP25-P-1.00F
Built-in input pull-down resistance
: 100 kΩ (typ.)
Output monitor pin (monitor for TSD/ISD) : ALERT1 pin (IALERT1 (max) = 1 mA)
Output monitor pin (monitor for UVLO)
: ALERT2 pin (IALERT2 (max) = 1 mA)
Single power supply
Built-in thermal shutdown (TSD) circuit
Built-in under voltage lock out (UVLO) circuit
Built-in over-current detection (ISD) circuit
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TB67H302HG pdf, 반도체, 판매, 대치품
Functions
TB67H302HG
I/O functions
SELECT = L (Direct PWM mode)
Input
SB IN1 IN2 PWM
H
HHH
L
H
HLH
L
H
HH L
L
H
HL L
L
H
L H/L H/L
L
OUT1
L
OUT2
L
LH
LL
HL
LL
OFF
(Hi-Z)
OFF
(Hi-Z)
Output
Mode
Short brake
CW/CCW
Short brake
CCW/CW
Short brake
Stop
Standby
SELECT = H (Constant-current PWM mode)
Input
SB IN1 IN2 PWM OUT1
H
HHH
L
L
OUT2
L
H
HLH
L
L
L
H
L
H
HH L
L
H
L
L
L
H
HL L
L
OFF
(Hi-Z)
H
L H/L H/L
L
OFF
(Hi-Z)
Output
Mode
Short brake
Constant-current PWM, CW (OUT2OUT1)
Short brake
Constant-current PWM, CCW (OUT1OUT2)
Short brake
Stop
Standby
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TB67H302HG 전자부품, 판매, 대치품
TB67H302HG
Constant-current PWM control
Constant-current PWM control mode is set when SELECT=H.
The TB67H302HG uses a peak current detection technique to keep the output current constant by
applying constant voltage through the Vref pin.
The ratio 40% of the fast decay mode is always fixed.
Charge-discharge cycles of PWM drive corresponds to 5 cycles of OSCM. The current is decreasing in the
last two OSC cycles; the fast decay mode.
The relation between the master clock frequency (fMCLK), the OSCM frequency (fOSCM) and the PWM
frequency (fchop) is shown as follows:
fOSCM = 1/20 ×fMCLK
fchop = 1/100 ×fMCLK
When Rosc=51kΩ, the master clock=4MHz, OSCM=200kHz, the frequency of PWM(fchop)=40kHz.
NF: Point where output current reaches the setting current.
MDT in the below figure indicates the point of MIXED DECAY TIMMING.
OSCM
Internal
Waveform
fchop
40%
fast
Decay
Mode
Setting current
NF
MDT
CHARGE MODE NF: Reach setting current SLOW MODE
MIXED DECAY TIMMING FAST MODE Current monitor
(Setting current > Output current) CHARGE MODE
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관련 데이터시트

부품번호상세설명 및 기능제조사
TB67H302HG

Dual Bridge Driver IC

Toshiba
Toshiba

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