PDF《TC7718FTG》

TC7718FTG 2018-04-24

1 TOSHIBA CDMOS Integrated Circuit Silicon Monolithic TC7718FTG Wireless power transmitter analog IC 1.

Outline The TC7718FTG is a wireless power transmitter analog IC. It operates in connecting to micro controller to construct the wireless power transmitter system. 2. Applications Mobile devices (Smartphone and tablet), Mobile accessory etc. 3. Features ? Built-in full bridge gate driver: 1ch ? Built-in half bridge gate driver: 1ch ? High side Pch-Low side Nch FET compatible ? Built-in LPF for recovery of ASK signal: 2ch ? Built-in LDO (3.3V output) ? Operating voltage range: 4.5V to 25V ? Built-in level shifter: 2ch ? Package: P-VQFN36-0505-0.40-001 (5mm * 5mm, 0.4mm pitch) P-VQFN36-0505-0.40-001 Weight: 67.6mg (typ.) Driver LDO 3.3V TC7718FTG LPF Level Shift DCDC DCIN Full Bridge Half Bridge MCU @2016-2018 Toshiba Electronic Devices &

Storage Corporation TC7718FTG 2018-04-24

2 4. Block diagram 5. Pin assignment

1 2

3 4

5 6

7 8

9 27

26 25

24 23

22 21

20 19

10 11

12 13

14 15

16 17

18 36

35 34

33 32

31 30

29 28 IIN IINF VIN VINF PVDD NC VDD33 VSS HYS PWM_IN0 PWM_IN1 PWM_IN2 PWM_IN3 Qdet_CNT COMP_OUT2 COMP_EN_IN COMP_OUT1 Bridge_CNT LS2_OUT LS1_OUT HDRV3 LDRV3 NC TESTEN AMON LS1_IN LS2_IN VSS VCC NC HDRV2 LDRV2 NC HDRV1 LDRV1 NC Figure

1 Internal block diagram Figure

2 Pin assignment LDO 3.3V VDD33 VSS PWM_IN1 PWM_IN2 PWM_IN3 VCC PVDD HDRV2 LDRV2 HDRV1 LDRV1 LDRV3 TC7718FTG LPF + - LPF + - VIN IIN VINF IINF COMP_EN_IN COMP_OUT1 COMP_OUT2 TESTEN PWM_IN0 Bridge_CNT Qdet_CNT VSS LS1_IN LS1_OUT

1 2

3 4

5 7

8 9

10 11

12 18

17 16

15 14

13 36

34 28

29 31

33 27

26 25

24 22

21 20

19 Logic LS LS LS LS LS2_OUT LS2_IN AMON HDRV3 HYS Level Shift LS LS TC7718FTG 2018-04-24

3 6. Pin function Table

1 Pin function Pin number Pin symbol I/O Description Comment

1 IIN I Capture input (Current channel)

2 IINF I Internal OPAMP feedback (Note 1)

3 VIN I Capture input (Voltage channel)

4 VINF I Internal OPAMP feedback (Note 1)

5 PVDD - Power supply pin

6 NC - Non connection (Note 2)

7 VDD33 - Power supply pin

8 VSS - GND pin (Note 3)

9 HYS I Hysteresis adjustment for internal comparator (Note 4)

10 COMP_EN_IN I Output enable for capture signal

11 COMP_OUT2 O Comparator output

2 (VIN)

12 COMP_OUT1 O Comparator output

1 (VIN)

13 Qdet_CNT I Brake mode control

14 Bridge_CNT I Full-bridge/Half-bridge shift

15 PWM_IN3 I PWM input

3 16 PWM_IN2 I PWM input

2 17 PWM_IN1 I PWM input

1 18 PWM_IN0 I PWM input

0 19 LS2_IN I Level shifter input

2 20 LS1_IN I Level shifter input

1 21 AMON O Monitor pin

22 TESTEN I Test pin (Note 3)

23 NC - Non connection (Note 2)

24 LDRV3 O Low gate driving force

3 Tx coil for measuring Q (Note 5)

25 HDRV3 O High gate driving force

3 Tx coil for measuring Q (Note 5)

26 LS1_OUT O Level shifter output

1 27 LS2_OUT O Level shifter output

2 28 VSS - GND pin (Note 3)

29 VCC - Drive power supply

30 NC - Non connection (Note 2)

31 HDRV2 O High gate driving force

2 Tx coil for operation (Note 5)

32 NC - Non connection (Note 2)

33 LDRV2 O Low gate driving force

2 Tx coil for operation (Note 5)

34 LDRV1 O Low gate driving force

1 Tx coil for operation (Note 5)

35 NC - Non connection (Note 2)

36 HDRV1 O High gate driving force

1 Tx coil for operation (Note 5) (Note 1) Please connect specified resistance and capacitor between IIN and IINF, VIN and VINF. (Note 2) Please make it to open. (Note 3) Please connect to common ground (GND) (Note 4) Please supply the divided voltage which is divided from the power supplied from VDD33 by the resistance. (Note 5) Please connect the pull-down resistance of 100kΩ between the gate pin and the source pin of Nch-MOSFET and Pch-MOSFET TC7718FTG 2018-04-24