FAN7888MX

3-phase half-bridge gate driver, 600V, 15V supply, 270ns dead time, SOIC-28, BLDC/PMSM motor drive

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Pieza del fabricante：

FAN7888MX

Paquete：

SOIC-28 WB (17.9 x 7.5 x 2.35 mm)

Marca：

Categorías de productos：

Circuitos integrados de controladores de puerta, Circuitos integrados IC

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Descripción

Productos

The onsemi FAN7888MX is a three-phase half-bridge gate driver IC designed for BLDC and PMSM motor drive applications. Housed in an SOIC-28 package, it provides three high-side and three low-side gate drivers with built-in dead time, shoot-through prevention, undervoltage lockout (UVLO), and bootstrap diode functionality. The device operates from a single 15V supply and supports logic-level input interface from MCUs.

Especificaciones

Topology	3-Phase Half-Bridge Gate Driver
Driver Channels	6 (3 High-Side + 3 Low-Side)
Supply Voltage (VDD)	12V to 18V (Typ 15V)
Bootstrap Voltage (VBS)	Up to 600V
Dead Time (Typ)	270 ns (Built-in)
UVLO Threshold (VDD)	8.0V (Off), 8.5V (On)
Input Logic	Active High (HIN/LIN)
Drive Capability	250 mA Source / 500 mA Sink
Temperatura de funcionamiento	-40°C to +125°C
Paquete	SOIC-28 WB

Características

Integrated 3-phase half-bridge gate driver for BLDC/PMSM motor control
Built-in dead time of 270 ns typical prevents shoot-through
Independent undervoltage lockout (UVLO) for each high-side and low-side channel
Integrated bootstrap diodes eliminate external components
Shoot-through prevention logic monitors HIN and LIN inputs
Low-side emitter pins for individual phase current sensing
Fault output signal for system protection
Pb-Free, RoHS compliant

Aplicaciones

Three-phase BLDC motor drives
Permanent magnet synchronous motor (PMSM) control
AC induction motor inverters
Servo motor drive systems
Industrial automation and robotics

Introducción del producto:FAN7888MX Presentación del producto

The onsemi FAN7888MX is a three-phase half-bridge gate driver IC designed specifically for BLDC and PMSM motor drive applications. The device integrates three high-side and three low-side gate drivers in a single SOIC-28 package, providing a compact solution for three-phase inverter stages. Built-in dead time of 270 ns typical and shoot-through prevention logic ensure safe operation by preventing simultaneous conduction of high-side and low-side switches. Each channel features independent undervoltage lockout (UVLO) protection, monitoring both VDD and bootstrap voltages. Integrated bootstrap diodes simplify PCB layout by eliminating the need for external bootstrap components. The device accepts logic-level inputs from an MCU and provides 250 mA source / 500 mA sink drive capability, suitable for driving a wide range of power MOSFETs or IGBTs.

Principio de funcionamiento:FAN7888MX Principio de funcionamiento

The FAN7888MX operates as a three-phase half-bridge gate driver. Each phase has a high-side driver (HO) and a low-side driver (LO), controlled by HIN and LIN logic inputs from the MCU. The high-side drivers are powered by bootstrap capacitors charged through internal bootstrap diodes when the low-side switch is on. When the high-side input (HIN) goes high, the high-side driver turns on the high-side MOSFET, pulling the phase output to the DC bus voltage. The shoot-through prevention circuit monitors both HIN and LIN — if both are high simultaneously, the device enforces dead time before allowing the complementary switch to turn on. The UVLO circuit independently monitors VDD and each bootstrap voltage, disabling the corresponding driver if the voltage falls below the threshold. The FAULT output signals any UVLO or over-temperature condition to the MCU.

Descripción de la clavija:FAN7888MX Definición y funciones de las clavijas

Pin	Nombre	Tipo	Función
1	VB(U)	Potencia	U-phase high-side bootstrap voltage input
2	HO(U)	Salida	U-phase high-side gate drive output
3	VS(U)	Potencia	U-phase high-side floating ground return
4-6	VB(V)/HO(V)/VS(V)	Power/Output	V-phase high-side driver connections
7-9	VB(W)/HO(W)/VS(W)	Power/Output	W-phase high-side driver connections
10-12	HIN(U/V/W)	Entrada	High-side logic inputs for U/V/W phases
13-15	LIN(U/V/W)	Entrada	Low-side logic inputs for U/V/W phases
16-18	LO(U/V/W)	Salida	Low-side gate drive outputs for U/V/W phases
19	FALLO	Salida	Fault output (active low, open drain)
20	VDD	Potencia	Logic and low-side supply voltage (12-18V)
21	GND	Potencia	Referencia del suelo
22-24	NC	NC	No connection
25-28	COM	Potencia	Low-side emitter/common pins

Application Scenarios:In which products and applications isFAN7888MX usado

Three-phase BLDC motor drives in industrial automation
PMSM servo motor control in robotics applications
AC induction motor inverters for HVAC systems
Electric bicycle and scooter motor controllers
Industrial pump and fan motor drives

Alternative Models:What chips are recommended as replacements for FAN7888MX

Fabricante	Número de pieza	Paquete	Notas
onsemi	FAN7888MPMX	TSSOP-28	Smaller package variant
Infineon	6ED003L06-F2	PG-DSO-28	Equivalent 3-phase driver
STMicroelectronics	L6230	SO-20	Lower voltage alternative
Texas Instruments	DRV8301	HTSSOP-48	Integrated with current sense amp
ROHM	BM6102FV-LB	SSOP-B28	Comparable 3-phase gate driver