VN770K Datasheet, PDF (1/20 Pages) STMicroelectronics – QUAD SMART POWER SOLID STATE RELAY FOR COMPLETE H BRIDGE CONFIGURATIONS

®
VN770K
QUAD SMART POWER SOLID STATE RELAY
FOR COMPLETE H BRIDGE CONFIGURATIONS
TYPE
R_DS(on)
I_OUT
V_CC
VN770K
220mΩ (*) 9A (**)
36V
(*) Total resistance of one side in bridge configuration
(**) Typical current limitation value
s SUITED AS LOW VOLTAGE BRIDGE
s LINEAR CURRENT LIMITATION
s VERY LOW STAND-BY POWER DISSIPATION
s SHORT CIRCUIT PROTECTED
s STATUS FLAG DIAGNOSTIC (OPEN DRAIN)
s INTEGRATED CLAMPING CIRCUITS
s UNDERVOLTAGE PROTECTION
s ESD PROTECTION
SO-28
DESCRIPTION
The VN770K is a device formed by three
monolithic chips housed in a standard SO-28
package: a double high side and two low side
switches. Both the double high side and low side
switches are made using |STMicroelectronics
VIPower™ M0-3 Technology. This device is
suitable to drive a DC motor in a bridge
configuration as well as to be used as a quad
switch for any low voltage application. The dual
high side switches have built-in thermal shutdown
to protect the chips from overtemperature and
current limiter blocks to protect the device from
short circuit. Status output is provided to indicate
open load in off and on state and overtemperature.
The low side switches are two OMNIFET II types
(fully autoprotected Power MOSFET in VIPower™
technology). They have built-in thermal shutdown,
linear current limitation and overvoltage clamping.
Fault feedback for thermal intervention can be
detected by monitoring the voltage at the input pin.
PIN FUNCTION
No
NAME
1, 3, 25, 28 DRAIN 3
2
INPUT 3
4, 11
N.C.
5, 10, 19, 24 V_CC
6
GND
7
INPUT 1
8
DIAGNOSTIC
9
INPUT 2
12, 14, 15, 18 DRAIN 4
13
INPUT 4
16, 17 SOURCE 4
20, 21 SOURCE 2
22, 23 SOURCE 1
26, 27 SOURCE 3
FUNCTION
Drain of Switch 3 (low-side switch)
Input of Switch 3 (low-side switch)
Not Connected
Drain of Switches 1 and 2 (high-side switches) and Power Supply Voltage
Ground of Switches 1 and 2 (high-side switches)
Input of Switch 1 (high-side switches)
Diagnostic of Switches 1 and 2 (high-side switches)
Input of Switch 2 (high-side switch)
Drain of switch 4 (low-side switch)
Input of Switch 4 (low-side switch)
Source of Switch 4 (low-side switch)
Source of Switch 2 (high-side switch)
Source of Switch 1 (high-side switch)
Source of Switch 3 (low-side switch)
December 2002
1/20