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Toshiba TB9051FTG Manual

Pwm type single channel h-bridge dc brushed motor driver for automotive use
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Toshiba Bi-CMOS Linear Integrated Circuit Silicon Monolithic
TB9051FTG
PWM type single channel H-Bridge DC brushed motor driver for automotive use
1. Outline
This product is a motor driver IC which incorporates the output driver
for the direct drive of a DC brushed motor intended for the automotive
use.
The motor drive output can be highly efficient operation by the PWM
control which realizes low-on resistance.
Forward / Reverse / brake mode can be selected according to PWM1 signal and PWM2 signal, and the
motor operation mode and stop mode can be selected by ENABLE pin.
Moreover, the output current capacity is 5A (max), it is suitable for various automotive applications
such as a throttle and valve control, various engine bulbs, storing of door mirrors, and a seat
positioning.
2. Application
Automotive applications such as a throttle and valve control, various engine bulbs, and storing of door
mirrors
3. Feature
Motor driver block:
●
Abnormality detection function:
●
Built-in initial diagnosis function: Power supply abnormality detection circuit (VBAT
●
Output type:
●
Motor operation:
●
Current limitation control:
●
Output high-side current monitoring function (OCM pin)
●
DIAG output
●
Built-in the through current prevention circuit
●
Operating voltage range:
●
Operating temperature range:
●
Compact type flat package:
●
AEC-Q100 Qualified
●
・If the label of shipping box is indicated to be "[[G]]/RoHS COMPATIBLE2", "[[G]]/RoHS [[Chemical
symbol(s) of controlled substance(s)", and "RoHS COMPATIBLE" or "RoHS COMPATIBLE, [[Chemical
symbol(s) of controlled substance(s)]]>MCV", this product is compliant with the EU RoHS Directive
(2011 / 65 / EU) in the meaning of the statement.
©2016-2019
Toshiba Electronic Devices & Storage Corporation
Single channel H-Bridge driver
(Ron(Pch+Nch))<0.45 Ω (Max @Tj = 150°C, VBAT = 8 V)
Over-current detection, over-temperature detection, VBAT
undervoltage detection, VCC undervoltage detection, and
VCC high voltage detection
undervoltage, VCC undervoltage and VCC high voltage.)
PWM control output
Forward /Reverse/ Brake
Current limiter with chopper type
VBAT = 4.5 to 28 V (Maximum ratings of power supply
voltage 40V (max): 0.5 sec.)
Ta = -40°C to 125°C
P-QFN28-0606-0.65-001
1 / 49
TB9051FTG
P-QFN28-0606-0.65-001
Ver.1.1 2019-03-14

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Summary of Contents for Toshiba TB9051FTG

  • Page 1 TB9051FTG Toshiba Bi-CMOS Linear Integrated Circuit Silicon Monolithic TB9051FTG PWM type single channel H-Bridge DC brushed motor driver for automotive use 1. Outline This product is a motor driver IC which incorporates the output driver for the direct drive of a DC brushed motor intended for the automotive use.

  • Page 2: Block Diagram

    TB9051FTG 4. Block Diagram 5V ECU Battery VBAT 5.1kΩ Initial Initial Low voltage detection, and high diagnosis diagnosis voltage detection Low voltage detection DIAG Control ・Over current detection PWM1 ・POR OUT1 ・Low voltage detection Microcontroller ・High voltage detection PWM2 Pre-Driver ・Thermal detection...

  • Page 3: Pin Assignment

    TB9051FTG 5. Pin Assignment Pin assignment (Top View) Figure 5.1 Pin assignment Ver.1.1 2019-03-14 3 / 49...

  • Page 4: Pin Description

    TB9051FTG 6. Pin Description Pin description Table 6 Pin description Pin name Pin description Motor drive output control pin at the time of the over-current detection (This pin is used for the judgement of whether the motor control output is ON or OFF by this IC or by the MCU.)
  • Page 5 TB9051FTG 6.1. Protection Element Arrangement Table 6.1 Protection element arrangement Protection element Pull down Protection element rating connection destination Pin Name Power Power /Pull up supply GND side supply GND side side side Pull down AGND Pull up AGND Pull down...

  • Page 6: Functional Description

    TB9051FTG 7. Functional Description 7.1. Motor Driver Output Circuit The output circuit operates according to the following function (Table 7.1-1). In the Table 7.1-1 to 7.1-3, each letter means; X: Don’t care, H: High, L: Low, and Z: High impedance.
  • Page 7 TB9051FTG (1) PWM function (in the case of Forward) (EN: H, ENB: L) * The mark of a circle shows DMOS Tr which is ON. Figure 7.1-1 Current flow at the time of PWM function (Forward) Note: Some of the functional blocks and circuits in the block diagram may be omitted or simplified for explanatory purposes.
  • Page 8 TB9051FTG PWM function (Foward) timing chart (in the case of short brake operation, PWM1 = PWM2 = H) ● *D.T (Dead Time): In order to prevent the through current by simultaneous ON of Hi-side Pch Tr and Lo-side Nch Tr, Pch Tr off and Nch Tr off time (4 μs (typ.)) are prepared.
  • Page 9 TB9051FTG (2) PWM function (in the case of Reverse) (EN: H, ENB: L) * The mark of a circle shows DMOS Tr which is ON. Figure 7.1-3 Current flow at the time of PWM function (Reverese) Note: Some of the functional blocks and circuits in the block diagram may be omitted or simplified for explanatory purposes.
  • Page 10 TB9051FTG PWM function (Reverse) timing chart (in the case of short brake function, PWM1 = PWM2 = H) ● *D.T (Dead Time): In order to prevent the through current by simultaneous ON of Hi-side Pch Tr and Lo-side Nch Tr, Pch Tr off and Nch Tr off time (4 μs (typ.)) are prepared.
  • Page 11 TB9051FTG 7.2. DIAG Output This pin is an open drain type output pin and should be used connecting to a MCU power supply through a pull-up resistor. When the following errors occur, this pin outputs “L.” Table 7.2 DIAG function...
  • Page 12 TB9051FTG Figure 7.2-1 Example of DIAG output circuit configuration Note: Some of the functional blocks and circuits in the block diagram may be omitted or simplified for explanatory purposes. In the case of the over-current detection and over-temperature detection, DIAG output is latched (*1) (the motor drive output becomes an OFF operation).
  • Page 13 TB9051FTG 7.3. Current Limitation Control This IC uses a chopper type control as a current limitation control. The current limitation control makes it operate in the large current flowing at the time of locking a motor when the motor shaft operation cannot be performed.
  • Page 14 TB9051FTG (11) Shift to the short brake mode at the PWM1 falling edge. (12) The normal operation returns by PWM1 = H signal. (13) Since PWM1 hold “H”, the motor drive current is increasing. (14) Then the operation becomes the short brake mode operation, and the motor drive current is reduced by PWM1 = L signal.
  • Page 15 TB9051FTG 7.3.3. Current monitoring block at the time of current limitation control It is detected at Low-side driver of the motor drive output. Figure 7.3-3 Current monitoring block at the time of current limitation control Note: Some of the functional blocks of circuits in the block diagram may be omitted or simplified for explanatory purposes.
  • Page 16 TB9051FTG 7.4. High-side current monitor: OCM pin The current which flows to high side Tr (Pch) in H-bridge of motor-driven output (0A-6A) is monitored in real time. Then a current value of 0.223% (0 to 13.38mA) of its current value is output in aOCM pin.
  • Page 17 TB9051FTG Note: Some of timing charts in this document may be omitted or simplified for explanatory purposes. TB9051FTG OCM 電流特性 (0〜6A） TB9051FTG OCM current characteristics (0 to 6A) 17.0 16.0 15.0 14.0 13.0 12.0 11.0 10.0 仕様MIN Spec. MIN 仕様TYP.
  • Page 18 TB9051FTG 7.5. OSC circuit (oscillation circuit) An OSC circuit consists of CR oscillators of internal resistance and an internal capacitor, and performs a 5 MHz (typ.) oscillation. Without a trigger of oscillation starting, a oscillation starts automatically according to the rise of supply voltage(VCC).
  • Page 19 TB9051FTG 7.6. Power supply monitoring function This IC incorporates the power supply monitoring function. 7.6.1. VBAT undervoltage detection circuit ・When the VBAT voltage falls and becomes less than the low detection voltage, OUT1/2 becomes “OFF”(High-Z state). Moreover, in order to prevent chattering, a filter (TVBAT_uv:2μs (typ.)) is built in. If the VCC voltage is more than the POR detecting voltage value of VCC undervoltage even when output is in the "OFF"...
  • Page 20 TB9051FTG 7.6.2. VCC undervoltage detection circuit When the VCC voltage falls and becomes less than the low detection voltage, OUT1/2 becomes “OFF”(High-Z state).Moreover, in order to prevent chattering, a filter (TVCC_uv:2.5ms (typ.)) is built in. For a logic circuit, it is reset in the case of VCCRHL (3.07V (typ.)) or less. Moreover, in order to prevent chattering, a filter (TVCC_por:13.0μs (typ.)) is built in.
  • Page 21 TB9051FTG 7.6.3. VCC high voltage detection circuit When the VCC voltage rises and becomes more than the high detection voltage, OUT1/2 becomes “OFF”(High-Z state). Moreover, in order to prevent chattering, a filter (TVCC_up:2.5ms (typ.)) is built in. Even if the motor drive output is in the “OFF” (High-Z) state by a VCC high voltage detection, a logic circuit can operate.
  • Page 22 TB9051FTG 7.6.4. DIAG function release after VBAT, VCC voltage abnormal function For VBAT and VCC abnormal voltage, it returns automatically when being normal voltage. The DIAG output returns a normal operation when the automatic return receives abnormal release signals from each power supply monitoring function.
  • Page 23 TB9051FTG 7.7. Over-temperature detecion circuit (1) This IC builds in the over-temperature detection circuit. When the temperature becomes more than TSD, the motor drive output, OUT1/2 changes to High-Z state, and the IC is protected. (2) ”L” is output from DIAG pin on this time.
  • Page 24 TB9051FTG 7.7.1. DIAG function release operation after the over-temperature detection L output latch of DIAG pin is cleared at the rising edge of EN pin or the falling edge of ENBpin. Figure 7.7-1 DIAG function in the over temperature detection Note: Some of timing charts in this document may be omitted or simplified for explanatory purposes.
  • Page 25 TB9051FTG 7.8. Over-current detection circuit at the time of power supply short, GND short, and load short This IC incorporates the over-current detection for High-side and Low-side of each motor drive output driver. Therefore, if each motor drive output pin is short to the power supply, short to GND, and a load short, then the over-current threshold(11A(typ.)) is exceeded, the over-current detection circuit operates and...
  • Page 26 TB9051FTG <In the case of OCC pin; “H” 2 (Example: Low-side)> Figure 7.8-1 (2) Timing chart 2 (OCC = High) of current limitation detection operation at the time of short to power supply, short to GND, and load short Note: Some of timing charts in this document may be omitted or simplified for explanatory purposes.
  • Page 27 TB9051FTG 7.8.3. Timing chart of restart from the motor output OFF state at the time of over-current detection L output latch state of the DIAG pin is cleared at the rising edge of EN pin and falling edge of ENB pin.
  • Page 28 TB9051FTG 7.9. Regeneration operation At the time of VBAT voltage detection operation, VCC high voltage detection operation, VCC voltage detection operation, TSD detection operation, and over-current detection operation, before a High-Z output, regeneration operation that sends a coil current for outputs (OUT1, OUT2) to VBAT and a GND pin are put into effect to suppress the reverse electromotive current.
  • Page 29 TB9051FTG 7.10. Initial diagnosis and diagnostic restart sequence operation The diagnosis function, which changes threshold and checks operations of each comparator of the power supply monitoring circuits (VBAT undervoltage detection, VCC undervoltage detection, and VCC high voltage detection) in the normal or abnormal state, is built-in.
  • Page 30 TB9051FTG Figure 7.10-2 Initial diagnosis operation Note: Some of timing charts in this document may be omitted or simplified for explanatory purposes. Figure 7.10-3 Diagnostic restart operation Note: Some of timing charts in this document may be omitted or simplified for explanatory purposes.
  • Page 31 TB9051FTG Figure 7.10-4 Description of diagnositic operation Note: Some of timing charts in this document may be omitted or simplified for explanatory purposes. Under diagnostic After termination The state where it does The state where it does The state where it does...
  • Page 32 TB9051FTG Under diagnostic After termination Initial diagnostic The state where it does The state where it does The state where it does operation of a restart Diagnostic Condition Each detector restart formation Memo not detect Test 1 not detect Test 2...

  • Page 33: Absolute Maximum Ratings

    TB9051FTG 8. Absolute maximum ratings Table 8.1 Absolute maximum ratings (Unless otherwise specified, Ta = 25°C) Parameter Symbol Pin name Condition Rating Unit -0.3 to +28.0 VBAT VBAT -0.3 to +40.0 Power supply Transient: 0.5 s (Note 5) voltage -0.3 to +6.0...
  • Page 34 TB9051FTG Note 5) The voltage difference between PGND and VBAT should be less than maximum 40V. Note 6) The voltage difference between AGND and VCC should be less than maximum 6V. Note 7) PCB size: 114.3 mm x 76.2 mm x 1.6 mm Multi layer Cu 4 layers, Cu layer area: 74 ×...
  • Page 35 TB9051FTG 8.1. Heat resistance characteristics Ａ基板 Ｂ基板 PCB A PCB B 0.001 0.01 1000 10000 Time (sec) Figure 8.1 Heat resistance characteristics ◆PCB A: θja=46.6°C/W, θjc=1°C/W(Junction – E-Pad) PCB size: 110 mm x 80 mm x 1.6 mm Number of layers: Single Layer (Cu 1 layer) Layer thickness of Cu: 70μm...

  • Page 36: Operating Range

    TB9051FTG 9. Operating range 9.1. Power supply This IC is supplied two power supply voltages (VBAT and VCC) from the outside of IC. (1) VBAT power supply Connect to a battery power supply as the power supply for a motor drive output.

  • Page 37: Electrical Characteristics

    TB9051FTG 10. Electrical characteristics 10.1. Input circuit Table 10.1 Electrical characteristics of input circuit Test condition unless otherwise specified, VBAT = 4.5 to 28 V, VCC = 4.5 to 5.5 V, Ta = -40 to 125°C Parameter Symbol Pin name Test condition TYP.
  • Page 38 TB9051FTG 10.2. Power supply monitoring function Table 10.2 Electrical characteristics of power supply monitoring function Test condition unless otherwise specified, VBAT = 4.5 to 28 V,VCC = 4.5 to 5.5 V, Ta = -40 to 125°C Parameter Symbol Pin name Test condition TYP.
  • Page 39 TB9051FTG 10.3. Motor drive output circuit Table 10.3 Electrical characteristics of motor drive output circuit Test condition unless otherwise specified, VBAT = 4.5 to 28 V,VCC = 4.5 to 5.5 V,Ta = -40 to 125°C Parameter Symbol Pin name Test condition TYP.
  • Page 40 TB9051FTG 10.4. Current limitation control Table 10.4 Electrical characteristics of current limitation control Test condition unless otherwise specified, VBAT = 4.5 to 28 V,VCC = 4.5 to 5.5 V, Ta = -40 to 125°C Parameter Symbol Pin name Test condition TYP.
  • Page 41 TB9051FTG 10.6. Over-current detection circuit at the time of short to power supply, short to GND, and load short Table 10.7 Electrical characteristics of over-current detection circuit at the time of short to power supply, short to GND, and load short Test condition unless otherwise specified, VBAT = 4.5 to 28 V,VCC = 4.5 to 5.5 V, Ta = -40 to 125°C...
  • Page 42 TB9051FTG 10.9. AC characteristics of driver output Figure 10.9-1 Slew rate of driver output (SR) Note: Some of timing charts in this document may be omitted or simplified for explanatory purposes. PWM1/2 1.5V 1.5V tD(on) tD(off) OUT1/2 Figure 10.9-2 Driver output delay Note: Some of timing charts in this document may be omitted or simplified for explanatory purposes.

  • Page 43: Test Circuit

    TB9051FTG 11. Test circuit 0.1μF 100μF 10μF 0.1μF VBAT 5.1kΩ DIAG PWM1 OUT1 PWM2 OUT2 AGND PGND 220Ω Figure 11.1 Test circuit diagram of current consumption Note: Components in the test circuits are only used to obtain and confirm the device characteristics.
  • Page 44 TB9051FTG 12. Examples of application circuit 5V ECU Battery VBAT 5.1kΩ Initial Initial Low voltage detection and high voltage diagnosis diagnosis detection Low voltage detection DIAG Ｃｏｎｔrol ・OCL detection ・POR PWM1 ・Low voltage OUT1 detection PWM2 ・High voltage detection Pre-Driver OCL detection ・Thermal detection...
  • Page 45 The application circuits shown in this document are provided for reference purposes only. Thorough evaluation is required, especially at the mass production design stage. Toshiba does not grant any license to any industrial property rights by providing these examples of application circuits.
  • Page 46 TB9051FTG 13. Package 13.1. Package dimensions Weight: 0.22g (Typ.) Table 13.1 Package dimensions Ver.1.1 2019-03-14 46 / 49...
  • Page 47 Example. : (1) (2) (1) Last number of calendar year (Example shows “6” of 2016) (2) Week code (Example shows 13th week) (3) Product sight code (Q) (4) Toshiba management code (3 digits at maximum) Ver.1.1 2019-03-14 47 / 49...
  • Page 48 TB9051FTG 14. IC Usage Considerations 14.1. Notes on Handling of ICs (1) The absolute maximum ratings of a semiconductor device are a set of ratings that must not be exceeded, even for a moment. Do not exceed any of these ratings.
  • Page 49 Product and the precautions and conditions set forth in the "TOSHIBA Semiconductor Reliability Handbook" and (b) the instructions for the application with which the Product will be used with or for.