TPD4121K
TPD4121K is DC Brushless Motor-Driver manufactured by Toshiba.
Features
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- - High voltage power side and low voltage signal side terminal are separated. Bootstrap circuits give simple high-side supply. Bootstrap diodes are built in. PWM and 3-phase decoder circuit are built in. Outputs Rotation pulse signals. 3-phase bridge output using IGBTs. FRDs are built in.
Weight: 3.8 g (typ.)
Incorporating over-current and under-voltage protection, and thermal shutdown. Package: 26-pin DIP. patible with Hall amp input and Hall IC input.
This product has a MOS structure and is sensitive to electrostatic discharge. When handling this product, ensure that the environment is protected against electrostatic discharge.
2008-08-13
Pin Assignment
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Marking
Lot Code. (Weekly code)
TPD4123K TPD4121K
Part No. (or abbreviation code)
2008-08-13
Block Diagram
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VCC 11
17 BSU 22 BSV 24 BSW 6V regulator Under- Under- Undervoltage voltage voltage protect- protect- protection ion ion 23 VBB
VREG 10
Under-voltage protection HU+ 2 HU- 3 HV+ 4 HV- 5 HW+ 6 HW- 7 Hall Amp 3-phase distribution logic
Level shift high-side driver Thermal shutdown 18 U 21 V 25 W Low-side driver
FR 8 FG 9 VS 14 RREF 13 OS 12 Triangular wave PWM Over-current protection
26 IS2 20 IS1 15 RS 1/16 GND
2008-08-13
Pin Description
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Symbol GND HU+ HUHV+ HVHW+ HWFR FG VREG VCC OS RREF VS RS GND BSU U NC IS1 V BSV VBB BSW W IS2 Ground pin. U-phase Hall amp signal input pin. (Hall IC can be used.) U-phase Hall amp signal input pin. (Hall IC can be used.) V-phase Hall amp signal input pin. (Hall IC can be used.) V-phase Hall amp signal input pin. (Hall IC can be used.) W-phase Hall amp signal input pin. (Hall IC can be used.) W-phase Hall amp signal input pin. (Hall IC can be used.) Forward/Reverse selection pin. Rotation pulse output pin. 6 V regulator output pin. Control power supply pin. PWM triangular wave oscillation frequency setup pin....