VB526SP-E Datasheet, PDF (5/19 Pages) STMicroelectronics – High voltage ignition coil driver power integrated circuit

VB526SP-E
Block diagram and pin description
1
Block diagram and pin description
Figure 1. Block diagram
V_CC
BD
V_IN
DRIVER
QUASI PROP.
BASE CURRENT
DIAGNOSTIC
OUTPUT
LIMITER
V_CC
V_F1
V_R
-
REFERENCE
V_LIM
V_TH
THERMAL
PROTECTION
HV_C
R_SENSE
SN
E
LGND
GND
Table 2. Pin function
Pin number
Name
1, 5
LGND
2, 3, 4
GND
6
E
7
V_CC
8
BD
9
INPUT
10
FLAG
Tab
HV_C
1. When grounded the input is enabled
Function
Signal ground
Emitter power ground
Enable⁽¹⁾
Logic supply voltage
Base darlington
Logic input channel (internal pull down)
Diagnostic output signal (open emitter)
Primary coil output driver (open collector)
Doc ID 18029 Rev 1
5/19