LV8740V-TLM-E ON Semiconductor, LV8740V-TLM-E Datasheet - Page 20

• Manufacturer Part Number: LV8740V-TLM-E
• Description: 2-CH BRUSH MOTOR DRIVER
• Manufacturer: ON Semiconductor
• Type: Stepper Motor Driverr

Specifications of LV8740V-TLM-E

• Motor Type: Stepper
• No. Of Outputs: 2
• Output Current: 2.5A
• Driver Case Style: SSOP
• No. Of Pins: 44
• Operating Temperature Range: -30°C To +85°C
• Svhc: No SVHC (20-Jun-2011)
• Base Number: 8740
• Rohs Compliant: Yes
• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 9 V to 35 V
• Supply Current: 3 mA
• Mounting Style: SMD/SMT
• Package / Case: SSOP-44
• Operating Temperature: - 30 C to + 85 C
• Supply Voltage (min): 9 V
• Lead Free Status / Rohs Status: Details

(5) Timer latch time (Tcem)
Charge Pump Circuit
The time to output OFF when an output short-circuit occurs can be set by the capacitor connected between the CEM
pin and GND. The capacitor (Ccem) value can be determined as follows :
When the ST pin is set High, the charge pump circuit operates and the VG pin voltage is boosted from the VM voltage
to the VM + VREG5 voltage. I will recommend the drive of the motor to put the time of tONG or more after the ST
pin is made "H", and to begin because I cannot control the output if there is no pressure voltage of the voltage of the
VG pin enough.
Timer latch : Tcem
VM+VREG5
VM+4V
VM
ST
Tcem ≈ C × V/I [sec]
VG Pin Voltage Schematic View
V : Threshold voltage of comparator TYP 1V
I : CEM charge current TYP 10μA
LV8740V
tONG
VG pin voltage
No.A1864-20/23