AS3693B
5.2 Operating Conditions
Test circuit
Vreg
Vcurr
austria micro systems
Vreg
Curr1
Rfb1
Curr2
Rfb2
Curr15
Rfb15 Curr16
Rfb16
Gate1
Gate2
Gate15
Gate16
SDI
SCLK
xCS
Vsync
V2_5
Hsync
AS3693B
FBR
FBG
FBB
SDO
Fault
Ref(EXT)
V2_5
AGND
GND
ADDR2
ADDR1
( Exposed Pad )
Table 2 – Operating Conditions
2.2uF
2.2uF
Symbol
VDD
Parameter
Main Supply
Min
Typ
Max
Not
Limited
Unit
V
Note
Supply is not directly connected to
the AS3693B – see section ‘Shunt
Regulator’
VDD TOL Main Supply Voltage Tolerance
-20
+20
%
Applies only for supply VREG is
connected via Rvdd
VREG INT
VREG EXT
Supply (shunt regulated by
AS3693B)
5.0
3
5.2
4.5
5.4
4.9
V
V
If internally (shunt-)regulated by
ZD1
If externally supplied
If Vreg < UVUL current sources
VUVL
Untervoltage lockout voltage
2.4
2.7
3
V
are turned off
( Addr 0x01,Addr 0x02 = 0x00 )
Excluding current through shunt
I VREG
Supply Current (Chip current
consumption)
20
regulator (ZD1) – see section
mA ‘Shunt Regulator’. Note: Take care
of the Power dissipation of the
external Resistor.
I VREG_M
AX
Maximum Supply current
30
Maximum Current Into VREG –
mA PIN (Supply current + shunt
regulator current).
Condition: externally supplied
I VREG
EXT_OFF
350
uA
Curr_reg1-16 off (register 01h =
00h, register 02h = 00h)
Igate
Gate driving capability
0.5
1
2
mA Gate1 – Gate16 output current
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Revision 1.21 / 2011-09-30
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