Datasheet

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November 2009 Doc ID 12320 Rev 7 1/17

VN751S

High side driver

Features

■ CMOS compatible input

■ Thermal shutdown

■ Shorted load protection

■ Undervoltage and overvoltage shutdown

■ Protection against loss of ground

■ Very low standby current

■ Compliance to 61000-4-4 IEC test up to 4 kV

■ Open drain status output

Description

The VN751S is a monolithic device designed in

STMicroelectronics VIPower M0-3 technology,

intended for driving any kind of load with one side

connected to ground. Active V

pin voltage

clamp protects the device against low energy

spikes. Active current limitation combined with

thermal shutdown and automatic restart protect

the device against overload. Device automatically

turns off in case of ground pin disconnection. This

device is especially suitable for industrial

applications in conformity with IEC 61131-2

programmable controllers international standard.

Type R

DS(on)

out

VN751S 60 mΩ 2.5 A 36 V

SO-8

Figure 1. Block diagram

UNDERVOLTAGE

OVERTEMPERATURE

GND

INPUT

OUTPUT

OVERVOLTAGE

CURRENT

LIMITER

LOGIC

DRIVER

Power

CLAMP

DETECTION

STATUS

www.st.com

Summary of content (17 pages)

PAGE 1
VN751S High side driver Features Type RDS(on) Iout VCC VN751S 60 mΩ 2.
PAGE 2
Contents VN751S Contents 1 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Waveforms and truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 Test circuit . . . . . . . . . . . . . . . . . .
PAGE 3
VN751S 1 Maximum ratings Maximum ratings Table 1. Absolute maximum rating Symbol Value Unit DC supply voltage (overvoltage protected) 45 V - VCC Reverse DC supply voltage -0.3 V - IGND DC reverse ground pin current -200 mA Internally limited A -5 A VCC IOUT - IOUT Parameter DC output current Reverse DC output current IIN DC input current +/- 10 mA ISTAT DC status current +/- 10 mA VESD Electrostatic discharge (R = 1.
PAGE 4
Pin connections 2 4/17 VN751S Pin connections Figure 2. Connection diagram (top view) Figure 3.
PAGE 5
VN751S 3 Electrical characteristics Electrical characteristics 8 V < VCC < 36 V; -40 °C < TJ < 125 °C, unless otherwise specified Table 3. Symbol Power Parameter Test conditions Min Typ Max Unit VCC Operating supply voltage VUSD Undervoltage shut-down 3 VOV Overvoltage shut-down 36 RON On state resistance 5.5 IOUT = 2 A; TJ = 25 °C Table 4. Symbol V 180 10 1.5 On state; VCC = 24 V;TCASE =100 °C IL(off) 5.
PAGE 6
Electrical characteristics Table 5. Symbol Input pin Parameter VIL Input low level IIL Low level input current VIH Input high level IIH High level input current Vhyst Input hysteresis voltage IIN VICL Table 6. Symbol Test conditions Min Typ Max Unit 1.25 VIN = 1.25 V 1 μA 3.25 V VIN = 3.25 V 10 0.5 Input clamp voltage IIN = 1 mA μA V VIN = VCC = 5 V Input current V 10 μA 6 6.8 -0.
PAGE 7
VN751S 4 Waveforms and truth table Waveforms and truth table Figure 4. Switching time waveforms VOUT 90% 80% dVOUT/dt(off) dVOUT/dt(on) 10% t VIN td(on) td(off) t Table 8.
PAGE 8
Waveforms and truth table Figure 5.
PAGE 9
VN751S 5 Test circuit Test circuit Figure 6. Peak short circuit current test circuit R Figure 7.
PAGE 10
Application schematic 6 Application schematic Figure 8.
PAGE 11
VN751S 7 Reverse polarity protection Reverse polarity protection A schematic solution to protect the IC against a reverse polarity condition is proposed. This schematic is effective with any type of load connected to the outputs of the IC. The RGND resistor value can be selected according to the following conditions to be met: RGND ≤ 600 mV / (IS in ON state max).
PAGE 12
Package mechanical data 8 VN751S Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark.
PAGE 13
VN751S Package mechanical data Table 9. SO-8 mechanical data mm inch Dim. Min Typ A a1 Max Min Typ 1.75 0.1 0.068 0.25 a2 Max 0.003 0.009 1.65 0.064 a3 0.65 0.85 0.025 0.033 b 0.35 0.48 0.013 0.018 b1 0.19 0.25 0.007 0.010 C 0.25 0.5 0.010 0.019 c1 45 (typ.) D 4.8 5.0 0.188 0.196 E 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 3.81 0.150 F 3.8 4.0 0.14 0.157 L 0.4 1.27 0.015 0.050 M 0.6 S 0.023 8º (max.) Figure 10.
PAGE 14
Package mechanical data VN751S Figure 11.
PAGE 15
VN751S 9 Order code Order code Table 10.
PAGE 16
Revision history 10 VN751S Revision history Table 11. 16/17 Document revision history Date Revision Changes 18-Sep-2006 1 Initial release 12-Mar-2007 2 Document reformatted, typo in Section Table 3.: Power on page 5, updated Ptot value Table 2.
PAGE 17
VN751S Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.