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AS3691 Datasheet
Datasheet
AS3691
4 Precision 400mA Current Sources for RGB and Single Color Leds 1 General Description
The AS3691 (AS3691A and AS3691B) features four high precision current sources for lighting of up to four LED strings (RGB or single color leds). Each of the four currents sources can be controlled independently by PWM inputs. The full scale current value is set by external resistors. Very wide output voltage current source voltage compliance - Down to 0.41V 2) - Up to 15V Integrated overtemperature protection Separate sense pads (Rfb1-Rfb4) for easy and precise PCB Layout Package - DIE - QFN24 4x4mm - eP-TSSOP
2)
2 Key Features
4 x up to 0.4A constant current outputs Programmable with external resistors 4 independent PWM inputs Absolute current accuracy +/-0.5% ' Automatic Supply Regulation' to reduce power dissipation1)
1)
15V is sufficient for most applications as the AS3691 dose not switch off the LED current completely
Patent Pending
3 Applications
General Lighting Backlighting RGB Backlighting for LCD TV/Monitors with White Color Balancing
4 Application Diagrams
Figure 1 - Application Diagram of AS3691 for Single Color Lighting
VDD Csup 100nF Rvdd Cvdd 100nF UV VREG UV1 CURR1 UV2 CURR2 UV3 CURR3 UV4 CURR4 UV VDD
AS3691
D1 Ref
Vc
Vc
Vc
Vc
T1 I1 R1 R2
T2 I2 R3
T3 I3 R4
T4 I4
Overtemp
Pad VSS
ON1
RFB1
RES1 ON2
RFB2
RES2 ON3
RFB3
RES3 ON4
RFB4
RES4
Ri1 VSS PWM
Ri2
Ri3
Ri4 VSS PWM
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AS3691 Datasheet
Figure 2 - Application Diagram of AS3691 for RGB Lighting
VDDG VDDB VDDR VDDG VDDB VDDR
Rvdd Cvdd 100nF UVG UVB UVR VREG UV1 CURR1 UV2 CURR2 UV3 CURR3 UV4 CURR4 UVG UVB UVR
AS3691
D1 Ref
Vc
Vc
Vc
Vc
T1 I1 R1 R2
T2 I2 R3
T3 I3 R4
T4 I4
Overtemp
Pad
VSS
ON1
RFB1
RES1 ON2
RFB2
RES2 ON3
RFB3
RES3 ON4
RFB4
RES4
Ri1 VSS PWMG PWMB PWMR
Ri2
Ri3
Ri4 VSS PWMG PWMB PWMR
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AS3691 Datasheet
Table of Contents
1 2 3 4 5 General Description ......................................................................................................................................... 1 Key Features.................................................................................................................................................... 1 Applications...................................................................................................................................................... 1 Application Diagrams ....................................................................................................................................... 1 Pinout............................................................................................................................................................... 4 5.1 5.2 6 6.1 6.2 6.3 7 8 Pin Assignments ....................................................................................................................................... 4 Pin Descriptions........................................................................................................................................ 4 Absolute Maximum Ratings ...................................................................................................................... 6 Operating Conditions ................................................................................................................................ 6 Electrical Characteristics........................................................................................................................... 7
Characteristics ................................................................................................................................................. 6
Typical Operation Characteristics .................................................................................................................... 8 Detailed Functional Description ..................................................................................................................... 12 8.1 8.2 8.3 Shunt Regulator...................................................................................................................................... 12 Overtemperature Protection.................................................................................................................... 12 Automatic Supply Regulation.................................................................................................................. 13
9
Application Information .................................................................................................................................. 14 9.1 Design Example...................................................................................................................................... 15 9.1.1 Using Automatic Supply Regulation................................................................................................. 16 9.2 Layout Recommendations ...................................................................................................................... 16
10 10.1 10.2 10.3 11
Package Drawings and Markings ............................................................................................................... 17 QFN 4x4 Package Drawings and Marking .............................................................................................. 17 ePTSSOP Package Drawings and Marking............................................................................................ 19 DIE Delivery............................................................................................................................................ 20 Ordering Information .................................................................................................................................. 21
Revision History
Revision 2.3 Date 30.10.2007 Owner ptr Description - Added Trays as delivery option (order code AS3691AZQFT)
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AS3691 Datasheet
5 Pinout 5.1 Pin Assignments
Figure 3 - Pin Usage
VREG
UV1
CURR1
UV2
CURR2
UV3
CURR3
UV4
CURR4
AS3691
D1 Ref
Vc
Vc
Vc
Vc
T1 I1 R1 R2
T2 I2 R3
T3 I3 R4
T4 I4
Overtemp
Pad
VSS
ON1
RFB1
RES1 ON2
RFB2
RES2 ON3
RFB3
RES3 ON4
RFB4
RES4
5.2 Pin Descriptions
Table 1 - Pin Type Descriptions
Pin Type AI/O AI AO DI S Analog Pin Analog Input Pin Analog Output Pin Digital Input Supply Pin
Description
Table 2 - Pin Descriptions
Pin Number QFN Package 1 2 3 4 5 6
Pin Number ePTSSOP Package 10 11 12 13 14 15
Pin Name CURR1 RFB1 nc RFB4 CURR4 RES4
Type AI/O AI nc AI AI/O AI/O
Description Current Source 1 Output Connect to current set resistor R1 directly at resistor itself Leave open Connect to current set resistor R4 directly at resistor itself Current Source 4 Output Connect to current set resistor R4
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AS3691 Datasheet
Pin Number QFN Package
Pin Number ePTSSOP Package
Pin Name
Type
Description Current source CURR4 control; internal pullup resistor to VREG (can be left open, if CURR4 is always switched on) High ... 100% Current Low ... 5% Current Automatic supply regulation for CURR4; if not used, leave open Digital Test input; Leave open or connect to VSS; internal pulldown to VSS Automatic supply regulation for CURR3; if not used, leave open Current source CURR3 control; internal pullup resistor to VREG (can be left open, if CURR3 is always switched on) High ... 100% Current Low ... 5% Current Connect to current set resistor R3 Current Source 3 Output Connect to current set resistor R3 directly at resistor itself Shunt regulator supply; connect to Rvdd and Cvdd Connect to current set resistor R2 directly at resistor itself Current Source 2 Output Connect to current set resistor R2 Current source CURR2 control; internal pullup resistor to VREG (can be left open, if CURR2 is always switched on) High ... 100% Current Low ... 5% Current Automatic supply regulation for CURR2; if not used, leave open VSS Supply connection Automatic supply regulation for CURR1; if not used, leave open Current source CURR1 control; internal pullup resistor to VREG (can be left open, if CURR1 is always switched on) High ... 100% Current Low ... 5% Current Connect to current set resistor R1 VSS Supply connection; add as many vias to ground plane as possible
7
16
ON4
DI
8 9 10
17 18 19
UV4 TEST UV3
AO AI AO
11
20
ON3
DI
12 13 14 15 16 17 18
21 22 23 24 1 2 3
RES3 CURR3 RFB3 VREG RFB2 CURR2 RES2
AI/O AI/O AI S AI AI/O AI/O
19
4
ON2
DI
20 21 22
5 6 7
UV2 VSS UV1
AO S AO
23
8
ON1
DI
24 Pad
9 Pad
RES1 VSS
AI/O S
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AS3691 Datasheet
6 Characteristics 6.1 Absolute Maximum Ratings
Stresses beyond those listed in Table 1 may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in Section 5 Electrical Characteristics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Table 3 - Absolute Maximum Ratings
Symbol VDDMAX VINVREG VIN5V VIN15V IIN TSTRG VESD PT PDERATE TBODY Notes: 1. 2. 3.
Parameter Supply for LEDs VREG Supply voltage 5V Pins 15V Pins Input Pin Current Storage Temperature Range Humidity Electrostatic Discharge Total Power Dissipation PT Derating Factor Body Temperature during Soldering
Min -0.3 -0.3 -0.3 -0.3 -25 -55 5 -2000
Max >17 7.0 VREG+ 0.3V 17 +25 125 85 2000 2.0 23 260
Unit V V V V See notes1
Note Applicable for pin VREG Applicable for 5V pins2 Applicable for CURR1, CURR2, CURR3 and CURR4
mA At 25C, Norm: Jedec 17 C % V W Non condensing Norm: MIL 883 E Method 3015 At 50C, no airflow for QFN24 on 3 two layer FR4-Cu PCB
mW/ See notes3 C C according to IPC/JEDEC J-STD020C
As the AS3691 is not directly connected to this supply. Only the parameters VINVREG, VIN5V and VIN15V have to be guaranteed by the application All pins except CURR1, CURR2, CURR3 and CURR4 Depending on actual PCB layout and especially number of vias below the exposed pad - see layout recommendations; can be improved e.g. with Al-PCB or airflow
6.2 Operating Conditions
Table 4 - Operating Conditions
Symbol VDD
Parameter Main Supply
Min
Typ
Max Not Limited
Unit V % V V
Note Supply is not directly connected to the AS3691 - see section `Shunt Regulator' Applies only for supply VREG is connected via Rvdd If internally (shunt-)regulated by D1 If externally supplied
VDDTOL Main Supply Voltage Tolerance VREGINT
VREGEXT
-20 5.0 4.5 5.2 4.75
+20 5.4 5.0 2.5
Supply (shunt regulated by AS3691)
IVREG TAMB
Supply Current Ambient Temperature -20 25
Excluding current through shunt mA regulator (D1) - see section `Shunt Regulator' C
85
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6.3 Electrical Characteristics
Table 5 - Analog Electrical Characteristics
Symbol VCURR
Parameter Current Source CURR1 to CURR4 Voltage Compliance Current Source Range
Min 0.9 0.41 10 -0.5
Typ
Max 15.0 15.0 400(1) +0.5
Unit V V mA %
Note at 400mA; total power dissipation limit PT must not be exceeded at 100mA ONx = high ICURRx = 250mV / Rix (x=1...4) @25C TJUNCTION, excluding variation of external resistors; V(CURRx) <= 4.0V
(2) -20C to +100C TJUNCTION, -20C to +85C TAMB, excluding variation of external resistors; V(CURRx) <= 4.0V
ICURR
ICURR,
TOL
Current Source Tolerance -1.5 Automatic Supply Regulation compare voltage Automatic Supply Regulation gain Parallel Current Overtemperature Limit 140 +1.5 %
VC VC,GAIN I1-4 TOVTEMP
1.0 2.0 1.0 0.1
V mA/V
See section `Automatic Supply Regulation' Voltage to current ratio; output current range typ 0 to 200uA
mA V(CURRx) <= 15V mA V(CURRx) <= 5.0V C Maximum junction temperature
Notes: 1. 2. To obtain higher currents connect more than one current source in parallel Accuracy at +100C guaranteed by design and verified by laboratory characterization
Table 6 - Digital Input pins characteristics for pins ON1, ON2, ON3 and ON4
Symbol VIH VIL RPU
Parameter High Level Input voltage Low Level Input voltage Pullup resistor
Min 2.3 0.0
Typ
Max VREG 0.9
Unit V V k
Note
70
Internal pullup resistor R1 to R4 to VREG
fON
Input Frequency Range
0
20
This defines the actual input frequency seen on the input ON1 kHz to ON4; the basic frequency to generate the PWM signal is not limited by this parameter
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AS3691 Datasheet
7 Typical Operation Characteristics
Figure 4 - Output Current versus Voltage on Current Source - High Current Range
0,45 0,4 0,35 I(CURR1) [A] 0,3 0,25 0,2 0,15 0,1 0,05 0 0 5 VCURR1 [V] 10 15
Figure 5 - Output Current versus Voltage on Current Source - Low Current Range
12 10 I(CURR1) [mA] 8 6 4 2 0 0 2 4 6 8 10 12 14 VCURR1 [V]
Figure 6 - Internal voltage reference versus Temperature, V(CURR1) = 2.0V, Ri1=250
253 252 V(RES1) [mV] 251 250 249 248 247 0 20 40 60 80 100 120 140 Temperature [C]
ICURR1 =
V ( RES 1) Ri1
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Figure 7 - Output Currnent versus Temperature, V(CURR1) = 2.0V, Ri1 = 2.5 (Note: temperature coefficient of Ri1 = -200ppm/C)
102 101 100 99 98 0 10 20 30 40 50 60 70 Temperature [C]
Figure 8 - Cross coupling of pwm on CURR1 to CURR2; I(CURR1) = 100mA to 4mA, I(CURR2) = 100mA; AS3691A
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I(CURR1) [mA]
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Figure 9 - PWM performance of Current Source CURR1, I(CURR1) changed between 400mA (ON1=1) and 20mA (ON1=0); AS3691A
Figure 10 - Shunt Regulator Voltage VREG versus supply VDD with Rfb=1k
6 5 VREG [V] 4 3 2 1 0 0 5 10 15 20 VDD [V] 25 30 35 40
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Figure 11 - Automatic Supply Regulation dynamic performance using DCDC converter in regulation loop (as in section 7.3) R1 = 47k, R2 = 10k, R3 = 5k, R4 = 500, C1 = 1uF, I(CURR1) = 400mA/20mA (Ri1=0.625) 3 OSRAM Golden Dragon in series as load between CURR1 and VDD Input signal on pin ON1: PWM signal with f=10kHz, 80% duty cycle
Figure 12 - Parallel Current I1 to I4 (for measurement of I1 remove current set resistor R1)
0,7 0,6 I(CURR1) [mA] 0,5 0,4 0,3 0,2 0,1 0 0 5 VCURR1 [V] 10 15
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AS3691 Datasheet
8 Detailed Functional Description
The AS3691 includes four high precision current sources (sinks). Each current source is set by an external resistor. For internal power supply an internal shunt regulator is used. Optionally an additional 5V device can be supplied as well with this shunt regulator. The current sources are individually controlled by four ON inputs. If the inputs ON are high or left open, then the current is set as follows:
ICURR1-4 =
250mV Ri1-4
Setting the input ON to low the current is
ICURR1- 4 =
10.0mV Ri1- 4
for part numbers starting with AS3691A
The current is not zero to avoid high voltage jumps on the LEDs and supplies and therefore reduce EMI.
ICURR1- 4 =
0.0mV + I1- 4 = I1- 4 Ri1- 4
for part numbers starting with AS3691B; I1-4 is the parallel current (see above Figure 11)
8.1 Shunt Regulator
The supply of the AS3691 is generated from the high voltage supply. To obtain a 5V regulated supply, a series resistor Rvdd is used together with an internal zener diode (shunt regulator principle). An external capacitor Cvdd is used to filter the supply on the pin VREG. The external resistor Rvdd has to be choosen according to the following formula:
Rvdd =
VDDMIN - VVREGINTMAX IVREGMAX
VDDMIN is the minimum voltage of the supply, where Rvdd is connected
This ensures enough supply current (IVREGMAX) for the AS3691 under minimum supply voltage VDDMIN. If a stable 5V supply within the operating conditions limits of VREGEXT is already existing in the system it is possible to supply the AS3691 directly. In this case remove the resistor Rvdd and connected this supply directly to VREG.
8.2 Overtemperature Protection
If the junction temperature inside the AS3691 rises above TOVTEMP, the current sources are switched off.
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AS3691 Datasheet
8.3 Automatic Supply Regulation
The purpose of the automatic supply regulation is to minimize the voltage supply to reduce the voltage across the current sources of the AS3691 (CURR1-CURR4 to VSS) and therefore reduce the power dissipation of the AS3691 and the complete system. The AS3691 automatically controls the minimum required supply voltage for the different led strings to support very power efficient systems for lighting using the following circuit (any off-theshelf dcdc converter or ldo with adjustable output voltage can be used):
Figure 13 - Automatic Supply Regulation Circuit
From main supply
DCDC Converter for VDD R1 Voltage Feedback Vfb input for DCDC R2 R3 R4
VDDx
Csup 100nF
UVx
C1 UV1 Feedback resistor divider (part of DCDC converter circuit) Vc Vc CURR1 UV2 CURR2
AS3691
The function of this circuit is as follows: All channels, which are connected to the supply VDDx should have their respective UV pin connected together to UVx (see above Figure and Section `Application Schematic'). If any of these current sources has a too low voltage, it gradually pulls the wire UVx low. (The analog gain between the current source CURRx and output UVx is defined by the parameter VC,GAIN.) Therefore the feedback pin Vfb of the dcdc converter is pulled low and the dcdc converter compensates this by increasing the voltage on VDDx to obtain the same feedback voltage as before. To stabilize this regulation loop, the low pass filter build by C1 and R4 is used (this should be the dominant pole for the regulation loop). The minimum output voltage VDDxmin can be set accurately by the resistors R1 and R2. The maximum output voltage VDDxmax is set by R1, R2, R3 and R4 (Vref is the internal voltage reference of the DCDC converter; usually Vref = Vfb):
VDDxMIN = Vref
R1 + R2 R2
VDDxMAX = Vref
R1 + R2 ( R3 + R4 ) R2 ( R3 + R4 )
Therefore even if a led string is broken (then UVx is forced to 0V) or some leds are shorted, the supply always stays within the limits VDDxMIN and VDDxMAX.
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AS3691 Datasheet
9 Application Information
Typical Application Schematic For RGB leds (and a white color balancing circuit) use the following application schematic including automatic supply regulation (feedback paths UVR, UVG, UVB):
Figure 14 - Typical AS3691 System for RGB (back-)lighting; several AS3691 can be cascaded
Main supply
DCDC Converter for VDDR Voltage Feedback input for DCDC VDDR
UVR
Feedback resistor divider (part of DCDC converter circuit) DCDC Converter for VDDG Voltage Feedback input for DCDC VDDG
UVG
Feedback resistor divider (part of DCDC converter circuit) DCDC Converter for VDDB Voltage Feedback input for DCDC VDDB
UVB
Feedback resistor divider (part of DCDC converter circuit) VDDG VDDB VDDR
...
...
UVG UVB UVR
Vc
Vc
Vc
Vc D1 Overtemp
Vc
Vc
Vc
Vc D1
...
D1 Overtemp
...
Overtemp
AS3691
AS3691
AS3691
VSS PWMG PWMB PWMR 5V Supply 5V powered system (optional) PWMG PWMB PWMR
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AS3691 Datasheet
A typical AS3691 for single color leds can be done as follows using automatic supply regulation (feedback path UV):
Figure 15 - Typical AS3691 system for single color leds and supply regulation loop; serveral AS3691 can be cascaded
VDD Csup 100nF
Main supply
DCDC Converter for VDD Voltage Feedback input for DCDC
...
...
UV
Vc
Vc
Vc
Vc D1
...
5V powered system (optional)
D1 Overtemp
...
Overtemp
AS3691
AS3691
VSS PWM (optional) PWM
Note: Csup (100nF) is only required, if there are long wires (>0.3m) between the DCDC converter and the AS3691. The wire length between the Csup capacitor and the CURRx pin on AS3691 should not exceed 0.3m. If this cannot be guaranteed, add additional capacitors of 100nF to the pins CURRx.
9.1 Design Example
Assume a single color leds application (4 times 3 leds in series, each 100mA with Uf ranging from Ufmin=3.2V to Ufmax = 3.8V) with a fixed supply. First choose the external current set resistor with the following formula:
Ri1- 4 =
250mV ICURR1- 4
So for a current of 100mA, use a resistor of 2.5; 1/8W rated resistors are suitable (even up to 400mA). Then calculate the required voltage of the power supply. The minimum voltage on the current sink for guaranteed operation is 0.41V (VCURR @100mA) and the maximum forward voltage of the LEDs is assumed to be Ufmax = 3.8V. Therefore 3*3.8V + 0.41V = 11.81V. As this is the required minimum voltage of the power supply, add all the tolerances on top. Assumed +/-10% supply tolerance results in a power supply with nominal 13V (to have at least 11.81V in worst case). Using the following formula to calculate the external shunt resistor
Rvdd =
VDDMIN - VREGINTMAX VDDMIN - 5.4V = IVREGMAX 2.5mA
VDDMIN is the minimum voltage of the power supply, where Rvdd is connected
obtains 2564. The nearest lower(!) available value is 2.4k. For Cvdd use
Cvdd = 100nF
Csup (100nF) is only required, if there are long connections between the DCDC converter and the AS3691 (>0.3m). The wire length between the Csup capacitor and the CURRx pin on AS3691 should not exceed 0.3m. If this cannot be guaranteed, add additional capacitors of 100nF to the pins CURRx.
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AS3691 Datasheet
Then calculate the maximum power dissipation inside the AS3691. The worst case is maximum voltage supply (13V + 10%) together with LEDs with minimum forward voltage Ufmin : For these conditions the maximum voltage on any current source (CURR1 to CURR4) is
VCURRMAX = (1 + VDDTOL ) VDD - n Uf min
Not using automatic supply regulation
In our example 14.3V - 9.6V = 4.7V. The maximum power dissipation inside the AS3691 is now (assuming 4 identical strings)
PMAX = 4 VCURRMAX ICURR
In our example 1.88W. As
TMAX =
PT - P MAX + 50 o C PDERATE
For PT and PDERATE see Absolute Maximum Ratings
the system can be operated safely up to an ambient temperature of 55C assuming worst case power supplies and worst case leds. Please note: If the internal junction temperature of the AS3691 rises too high, the AS3691 will switch off the current sources for protection (it will never damage the AS3691).
9.1.1 Using Automatic Supply Regulation
For the identical system using the automatic supply regulation, the supply is regulated to minimize the power dissipation of the system. Therefore the tolerance of the VDD supply and also the variation in forward voltages of the LEDs can be ignored (only the difference in one lot of leds is still important, as the four strings are connected in parallel to the power supply). Assume a difference of Uf = 0.2V of forward voltage of the leds in one lot, then calculate the maximum voltage on the current source of the AS3691 (CURR1 to CURR4) with Using automatic supply regulation Uf variation of LED forward voltage in one lot (for one application) VC is internal set voltage (1.0V)
VCURRMAX = n U f + VC
to be 1.6V. Using the identical formulas as above, PMAX now is 0.64W and TMAX is 110C. Therefore using automatic supply regulation, the ambient temperature can be up to 110C under identical conditions.
9.2 Layout Recommendations
See austriamicrosystems `AN3691_TECH_Module Description' as a layout example for the AS3691. Layout Checklist 1. Use the bottom layer as ground plane and minimize the number and the length of connections within this layer 2. Do as many vias as possible on the exposed pad (for thermal performance) to the ground plane 3. Connect RFBx and RESx together at the current set resistor Rix (see above recommended layout) 4. The ground connections of the current set resistors should be as close to the AS3691 as possible 5. The ground connection of the capacitor Cvdd should be as close as possible to the AS3691 6. Minimize Area build by `Csup VSS connection - Csup Supply Connection - LEDs - CURRx - Csup VSS connection' (to minimize inductance in this path)
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AS3691 Datasheet
10 Package Drawings and Markings 10.1 QFN 4x4 Package Drawings and Marking
Figure 16 - QFN 24 - 4x4mm
Marking: Line 1: austriamicrosystems Logo Line 2: AYWWIZZ A = Pb-Free Identifier Y = Year WW = Week I = Plant Identifier ZZ = Letters of Free Choice Line 3: AS3691, AS3691A or AS3691B
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AS3691 Datasheet
Figure 17 - QFN 24 - 4x4mm Detail Dimensions
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AS3691 Datasheet
10.2 ePTSSOP Package Drawings and Marking
Figure 18 - ePTSSOP Package Drawing
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AS3691 Datasheet
Marking: Line 1: austriamicrosystems Logo Line 2: AYWWIZZ A = Pb-Free Identifier Y = Year WW = Week I = Plant Identifier ZZ = Letters of Free Choice Line 3: AS3691, AS3691A or AS3691B
Figure 19 - ePTSSOP Package Drawing Detail Dimenstions
10.3 DIE Delivery
Please contact austriamicrosystems for die delivery.
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AS3691 Datasheet
11 Ordering Information
Table 7 - Ordering Information
Part Number AS3691A-ZQFP
Marking AS3691A -orAS3691 1) AS3691A
1)
Package Type QFN 24 4x4mm QFN 24 4x4mm Sorted Wafers QFN 24 4x4mm Sorted Wafers ePTSSOP
Delivery Form Tape and Reel in Dry Pack Trays in Dry Pack Cut Dies on Foil Tape and Reel in Dry Pack Cut Dies on Foil Tape and Reel in Dry Pack
Description Package Size = 4x4x0.85mm, Pitch = 0.5mm, Pb-Free; 10mV on VRES for ON=0 Package Size = 4x4x0.85mm, Pitch = 0.5mm, Pb-Free; 10mV on VRES for ON=0 Sorted Wafers; 10mV on VRES for ON=0 Package Size = 4x4x0.85mm, Pitch = 0.5mm, Pb-Free; 0mV on VRES for ON=0 Sorted Wafers; 0mV on VRES for ON=0 Enhanced Power TSSOP (with power pad), Body Size=4.4mm Pitch = 0.65mm, Pb-Free; 10mV on VRES for ON=0 Enhanced Power TSSOP (with power pad), Body Size=4.4mm Pitch = 0.65mm, Pb-Free; 0mV on VRES for ON=0
AS3691A-ZQFT
AS3691A-ZSDF2) (AS3691A) AS3691B-ZQFP AS3691B-ZSDF
2)
AS3691B (AS3691B)
AS3691A-ZTSP
2)
AS3691A
AS3691B-ZTSP
AS3691B
ePTSSOP
Tape and Reel in Dry Pack
Note: 1) 2) AS3691 with 10mV on VRES for ON=0 can be marked with `AS3691' or `AS3691A' (identical behavior) Contact austriamicrosystems for availability
Description: AS3691V-CPPD V... AS3691 Version, either A or B AS3691A: 10mV on VRESx (x=1 to 4) if ONx = 0 (see `7 Detailed Functional Description') AS3691B: 0mV on VRESx (x=1 to 4) if ONx = 0 (see `7 Detailed Functional Description') Temperature range -20C - 85C Package; QF for QFN, SD for sorted DIEs, TS for enhanced Power TSSOP Delivery From; P for Tape&Reel in Dry Pack, F for cut dies on foil, T for Trays in Dry Pack
C... PP ... D...
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AS3691 Datasheet
Copyright
Copyright (c) 1997-2007, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, AustriaEurope. Trademarks Registered (R). All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies.
Diclaimer
Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. Austriamicrosystems AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or lifesustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services.
Contact Information
Headquarters austriamicrosystems AG A-8141 Schloss Premstatten, Austria T. +43 (0) 3136 500 0 F. +43 (0) 3136 5692 For Sales Offices, Distributors and Representatives, please visit: http://www.austriamicrosystems.com/contact
www.austriamicrosystems.com (ptr)
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Price & Availability of AS3691A-ZQFP

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