L6605D 查看數據表（PDF） - STMicroelectronics
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L6605D Datasheet PDF : 10 Pages
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L6605
ELECTRICAL CHARACTERISTICS (VS = 12V; Tj = 25°C)
Symbol
VS
VCS
Parameter
Supply Voltage
Card Supply Voltage
(Logic Inputs onset)
ICS
ICSS
VPPI
VPPO
Current Supply Card
ICS Short Circuit
VPP Supply Voltage
Programming Voltage
Test Condition
ICS = 80mA, VS = 12V
Min.
10
4.85
ICS = 1mA to 80mA
VS = 10V to 15V
CLOAD min = 5nF; CLOAD max = 20µF
4.75
VS = 12V
IPP = 50mA; VPPI = 30V;
Ton < 5ms
81
VPPO +
2.5V
-2.5%
Typ.
12
5
5
VDAC
Max.
15
5.15
5.25
80
200
33
+2.5%
Unit
V
V
V
mA
mA
V
V
IPP
IPPs
ton
toff
tshadow
VSWLOW
VSWHIGH
tCKON
tCKOFF
tD
tSET-UP1
tHOLD1
tSET-UP2
tHOLD2
tSCK
tHCK
f
SR
Output Program. Current
IPP Short Circuit
VPP, Rise Time
VPP, Fall Time
Shadow Timing
Low Level Switch Input
High Level Switch Input
Clock ON Time
Clock OFF Time
Delay Time
1st bit Set-up Time
1st bit Hold Time
Data Set-up Time
Data Hold Time
Clock Set-up Time
Clock Hold Time
Clock Frequency
VPP Slew Rate
VSTH
VSHY
TS
TH
Power ON/OFF Threshold
VSTH Hysteresis
Thermal Shutdown
Thermal Hysteresis
IPP = 1mA to 50mA
-5%
VPPI = max. 33V (see note 1)
CLOAD min = 5nF
CLOAD max = 500nF (see note 2)
VPPI = 30V
51
CLOAD min = 5nF
CLOAD max = 500nF (see note 2)
IL = 50mA (see note 1)
Cbounce = 0.1µF
2
1
1
CLOAD = 50pF, ISINK = 4mA,
250
VL = 0.4V
500
500
500
500
250
250
From rest state to
programming state and
viceversa
Logic inputs onset
VDAC +5%
V
50
mA
150 mA
200
µs
200
µs
1
ms
0.8
V
Vs-2V V
µs
µs
ns
ns
tCKON
ns
ns
ns
ns
ns
500 KHz
2
V/µs
8.5
9.5
V
0.6
V
180
°C
20
°C
Note 1: True for values in Tab. 1 only. ; Note 2: Values higher than 500nF are permitted, but the ton, toff timing will be out ISO norm.
CIRCUIT OPERATION
CARD POWER SUPPLY
Regulated voltage to supply the card (5V/80mA).
During nominal condition (VS = 12V, ICS = 80mA)
the VCS range variation is equal to + 3%.
While during line/load variation (VS = 10V to 15V;
ICS = 1mA to 80mA) the VCS range is + 5%.
An internal circuitry checks the ICS level; the pro-
tection block activates an IRQ with the proper fail-
ure code when the output current is in 81mA to
200mA range.
PROGRAMMING POWER SUPPLY
L6605 works in step-down mode by means of the
programmed output voltage VPP. 8VPP levels can
be selected programming the 3 bit DAC as per
Table 1. During nominal conditions (IPP = 50mA;
VPPI = 30V) the VPP range variation is equal to
3/10
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