L6569 L6569A
PIN FUNCTION
N°
1
2
Pin
VS
RF
Description
Supply input voltage with internal clamp [typ. 15.6V]
Oscillator timing resistor pin.
A buffer set alternatively to V
S
and GND can provide current to the external resistor RF
connected between pin 2 and 3.
Alternatively, the signal on pin 2 can be used also to drive another IC (i.e. another L6569 to drive
a full H-bridge)
Oscillator timing capacitor pin.
A capacitor connected between this pin and GND fixes (together with R
F
) the oscillating
frequency
Alternatively an external logic signal can be applied to the pin to drive the IC.
Ground
Low side driver output.
The output stage can deliver 170mA source and 270mA sink [typ.values].
Upper driver floating reference
High side driver output.
The output stage can deliver 170mA source and 270mA sink [typ.values].
Bootstrap voltage supply.
It is the upper driver floating supply. The bootstrap capacitor connected between this pin and pin
6 can be fed by an internal structure named “bootstrap driver” (a patented structure). This
structure can replace the external bootstrap diode.
3
CF
4
5
6
7
8
GND
LVG
OUT
HVG
BOOT
ELECTRICAL CHARACTERISTCS
(V
S
= 12V; V
BOOT
- V
OUT
= 12V; T
j
= 25°C; unless otherwise specified.)
Symbol
V
SUVP
V
SUVN
V
SUVH
V
CL
I
SU
I
q
I
BOOTLK
I
OUTLK
I
HVG SO
I
HVG SI
I
LVG SO
I
LVG S
I
5
8
6
7
Pin
1
Parameter
VS Turn On Threshold
VS Turn Off Threshold
VS Hysteresis
VS Clamping Voltage
Start Up Current
Quiescent Current
Leakage Current BOOT pin vs
GND
Leakage Current OUT pin vs
GND
High Side Driver Source Current
High Side Driver Sink Current
Low Side Driver Source Current
Low Side Driver Sink Current
I
S
= 5mA
V
S
< V
SUVN
V
S
> V
SUVP
V
BOOT
= 580V
V
OUT
= 562V
V
HVG
= 6V
V
HVG
= 6V
V
LVG
= 6V
V
LVG
= 6V
110
190
110
190
175
275
175
275
Test Condition
Min.
8.3
7.3
0.7
14.6
Typ.
9
8
1
15.6
150
500
Max.
9.7
8.7
1.3
16.6
250
700
5
5
Unit
V
V
V
V
µ
A
µ
A
µ
A
µ
A
mA
mA
mA
mA
3/13
STMICROELECTRONICS [ STMICROELECTRONICS ]
