TC1508S Feature
TC1508S Dual channel DC motor driver,
Dual channel built-in power MOS full bridge drive
Drive forward, backward, stop and brake functions
Low standby current and working current
Low on-resistance (1.0Ω)
Maximum continuous output current up to 1.8A/ channel, peak 2.5A
Wide voltage operating range
The TC1508 is in SOP-16 package form

TC1508S pin drawing and pin description

Serial number

Serial numbersymbol	symbol	Function description
1	NC	Hang in the air
2	INA	The engaging INB determines the state
3	INB	The engaging INA determines the state
4	VDD	Power supply positive
5	NC	Hang in the air
6	INC	The engagement IND determines the state
7	IND	Engaging INC determines the state
8	VDD	Power supply positive
9	OUTD	Full bridge output D terminal
10	AGND	AGND
11	PGND	PGND
12	OUTC	Full bridge output C terminal
13	OUTB	Full bridge output end B
14	AGND	AGND
15	PGND	PGND
16	OUTA	Full bridge output terminal A

TC1508S Absolute maximum rating

argument	symbol	Rated value	unit
Supply voltage	VCC	5.5	V
Control input voltage	VIN	VCC	V
Power dissipation	Pd	1.73	W
Thermal resistance	θJA	75	℃/W
Operating temperature	Topr	-20~85	℃
Junction temperature	Tj	150	℃
Storage temperature	Tstg	-55~150	℃
Peak output current/channel	Iop	2.5	A
Maximum continuous output current/channel	Ioc	1.8	A

 
TC1508S Recommended working conditions (Ta=25℃)

argument	symbol	Parameter value	unit
Supply voltage	VCC	2.2~5.5	V
Control input voltage	VIN	0~VCC	V
Positive and reverse output current	Iout	1.8	A

 
Electrical characteristics of TC1508S (Ta=25℃, VCC=3V, RL=15Ω, unless otherwise specified)

argument	symbol	Test condition	Minimum value	Typical value	Maximum value	unit
Integral circuit
The circuit turns off the current	ICCST	INA=INB=1	—	0	10	uA
Working current	ICC	INA=H, INB=L or INA=L, INB=H or INA=H, INB=H	—	0.3	1	mA
Control input
High level input voltage	VINH		2.0	—	—	V
Low-level input voltage	VINL		—	—	0.8	V
High level input current	IINH	VIN=3V	—	5	20	uA
Low level input current	IINL	VIN=0V	-1	0	—	uA
Pull-down resistance	RIN		—	1.5	—	MΩ
actuate
Output on-impedance	RON	Io=±200mA	—	1	1.6	Ω
diode
Leakage current	IDLEAK	VCC=5V	—	—	100	uA
Diode on-voltage	VD	IOUT=400mA	—	—	1.7	V

 
TC1508S Input/output logic table

input				exportation				way
INA	INB	INC	IND	OUTA	OUTB	OUTC	OUTD
L	L			Hi-Z	Hi-Z			Standby state
H	L			H	L			advance
L	H			L	H			recoil
H	H			L	L			brake
		L	L			Hi-Z	Hi-Z	Standby state
		H	L			H	L	advance
		L	H			L	H	recoil
		H	H			L	Lbrake

TC1508S chip use precautions
    1, the above recommended circuit and parameters are only applicable to ordinary remote control car toys, other toys and motor drivers in the use of CST1508S, please use according to the actual situation.
    2, the continuous current drive ability is affected by package form, VDD, VCC, chip differences and environmental temperature and other factors, specifications given parameters for reference only. In actual use, please consider a certain margin according to the product.
    3. CST1508S is designed and manufactured by MOS process, which is sensitive to static electricity, requiring attention to anti-static measures in the whole process of packaging, transportation, processing and production.