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12. Examples of application circuit
5V ECU
5.1kΩ
DIAG
PWM1
MCU
PWM2
EN
ENB
OCC
OCM
*Application circuit using both EN pin and ENB pin
* This figure shows an example of application circuit controlled by only EN pin. EN pin is fixed to H
and this circuit can be controlled by ENB.
VCC
POR
Initial
Low voltage detection
and high voltage
diagnosis
detection
Ｃｏｎｔrol
・OCL detection
・POR
・Low voltage
detection
・High voltage
detection
Pre-Driver
・Thermal detection
EN circuit
OSC circuit
AGND
Table 12.1 Example of application circuit 1
Table 12.2 Example of application circuit 2
44 / 49
Initial
diagnosis
Low voltage
detection
OCL detection
High-side current
monitoring
Thermal
detection
TB9051FTG
VBAT
OUT1
M
OUT2
PGND
Ver.1.1 2019-03-14
Battery
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