参数资料
| 型号： | NCV7708BDWR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 10/16页 |
| 文件大小： | 0K |
| 描述： | IC DRIVER HALF BRIDGE HEX 28SOIC |
| 标准包装： | 1 |
| 类型： | 高端/低端驱动器 |
| 输入类型： | SPI |
| 输出数： | 12 |
| 导通状态电阻： | 800 毫欧 |
| 电流 - 输出 / 通道： | 500mA |
| 电流 - 峰值输出： | 3A |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 150°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC |
| 包装： | 标准包装 |
| 其它名称： | NCV7708BDWR2GOSDKR |
NCV7708B
DETAILED OPERATING DESCRIPTION
General
The NCV7708B Double Hex Driver provides drive
capability for 3 independent H ? Bridge configurations, or 6
High Side configurations with 6 Low Side configurations, or
any combination of arrangements. Each output drive is
characterized for a 500 mA load and has a typical 1.0 A surge
capability (at 12 V). Strict adherence to integrated circuit die
temperature is necessary. Maximum die temperature is
150 ° C. This may limit the number of drivers enabled at one
time. Output drive control and fault reporting is handled via
the SPI (Serial Peripheral Interface) port.
An Enable function (EN) provides a low quiescent sleep
current mode when the device is not being utilized. No data
is stored when the device is in sleep mode. A pull down
current source is provided on the EN input to ensure the
device is off if the input signal is lost. Pull down current
sources are also provided on the SI and SCLK inputs. A pull
up current source is provided for the CSB input for the same
reason. A loss of signal pulls the CSB input high to stop any
spurious signals into the SPI port.
Power Up/Down Control
An under voltage lockout circuit prevents the output
drivers from turning on unintentionally. This control is
provided by monitoring the voltages on the VS1, VS2, and
V CC pins. Each analog power pin (VS1 or VS2) powers their
respective output drivers (VS1 powers OUTH1, OUTH2,
OUTH3, all 6 charge pumps and all 6 low side pre ? drivers.
VS2 powers OUTH4, OUTH5, and OUTH6). All drivers are
Over Curren t Detection Shut Down
initialized in the off (high impedance) condition, and will
remain off regardless of the status of V CC . This allows
power up sequencing of V CC , VS1, and VS2 up to the user.
The voltage on VS1 and VS2 should be operated at the same
potential.
A built ? in hysteresis on the under voltage threshold is
included to prevent an unknown region on the power pins.
After a device has powered up and the output drivers are
allowed to turn on, the output drivers will not turn off until
the voltage on the supply pins is reduced from the initial
under voltage threshold, or if shut down by either a SPI
command or a fault condition.
Internal power ? up circuitry on the logic supply pin
supports a smooth turn on transition. V CC power up resets
the internal logic such that all output drivers will be off as
power is applied. Exceeding the under voltage lockout
threshold on V CC allows information to be input through the
SPI port for turn on control. Logic information remains
intact over the entire VS1 and VS2 voltage range.
Current Limitation
Input bit 13 (OCD) controls the action of driver shutoff
during current limit. With a 0 for bit 13, there is no driver
shutoff, and the drivers current limit at 3 A. With a 1 for input
bit 13, the output drivers shut off when the shutdown
threshold current is passed. Devices can be turned back on
via the SPI port. Note: high currents could cause a high rise
in die temperature. Devices will not turn on if the die
temperature exceeds the thermal shutdown temperature.
OCD Input
OUTx OCD
Output Data Bit 13 Over
Current Limit
Bit 13
0
0
1
1
Condition
0
1
0
1
Load Detect (OLD) Status
0
1 (Need SRR to reset)
0
1 (Need SRR to reset)
OUTx Status
Unchanged
Unchanged
Unchanged
OUTx Latches Off (Need SRR to reset)
of all Drivers
3A
3A
3A
3A
Under Load Detection
The under ? load detection is accomplished by monitoring
the current from each output driver. A minimum load current
(this is the maximum open circuit detection threshold) is
required when the drivers are turned on. If the under ? load
circuit detection threshold has been crossed for more than
Under Load Detection Shut Down
the under ? load delay time, the bit indicator (output bit #14)
for open circuit will be set to a 1. In addition, the offending
driver will be turned off only if input bit 14 (ULD) is set to
1 (true).
ULD Input
OUTx ULD
Output Data Bit 14 Under
Bit 14
0
0
1
1
Condition
0
1
0
1
Load Detect (ULD) Status
0
1 (Need SRR to reset)
0
1 (Need SRR to reset)
OUTx Status
Unchanged
Unchanged
Unchanged
OUTx Latches Off (Need SRR to reset)
http://onsemi.com
10
相关PDF资料 |
PDF描述 |
|---|---|
| NCV7809BD2TR4G | IC REG POS 9V 1A D2PAK-3 |
| NCV803SQ308T1G | IC MICROPROC RESET MON SC-70-3 |
| NCV8141D2TR4G | IC REG LDO 5V .5A D2PAK-7 |
| NCV8184DG | IC REG LDO ADJ 8-SOIC |
| NCV8401DTRKG | IC DVR LOSIDE 33A 42V DPAK |
相关代理商/技术参数 |
参数描述 |
|---|---|
| NCV7708CDWR2G | 功能描述:IC DRIVER HALF BRIDGE HEX 28SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 电机和风扇控制器，驱动器 系列:* 标准包装:1 系列:- 应用:直流电机驱动器，步进电机驱动器 评估套件:- 输出数:1 或 2 电流 - 输出:750mA 电压 - 负载:10 V ~ 40 V 电源电压:4.5 V ~ 5.5 V 工作温度:-20°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-BFSOP（0.295"，7.50mm 宽） 供应商设备封装:24-SOP 包装:Digi-Reel® 其它名称:MTS62C19A-HS105DKR |
| NCV7708DW | 功能描述:马达/运动/点火控制器和驱动器 HALF BRIDGE DRIVER RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| NCV7708DWG | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Double Hex Driver |
| NCV7708DWR2 | 功能描述:马达/运动/点火控制器和驱动器 HALF BRIDGE DRIVER RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| NCV7708DWR2G | 功能描述:马达/运动/点火控制器和驱动器 HALF BRIDGE DRIVER RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
发布紧急采购，3分钟左右您将得到回复。