AS3630-ZWLT

AS3630-ZWLT Datasheet

AS3630

Part	Datasheet
AS3630-ZWLT	AS3630-ZWLT (pdf)

Related Parts	Information
AS3630-ZWLM	AS3630-ZWLM

PDF Datasheet Preview
AS3630 8A Supercap Flash Driver Figure AS3630 1 Key Benefits and Features The AS3630 is an inductive high efficient 4MHz dual DCDC step up converter with several sources. It supports the charging of a Supercap, its voltage balancing and a highly efficient DCDC step up from the Supercap to the LED and from VIN to the LED to power the flash LED with up to 8A. The AS3630 supports the pre-charging of the Supercap to VIN to reduce the startup time for the flash without reducing the lifetime of the Supercap. The system concept supports an immediate torch function without first charging the Supercap. The AS3630 includes flash timeout, over- undervoltage, overtemperature and LED short circuit protection. The AS3630 is controlled by an interface for adjustment of the currents and timings, set the end of charge voltage and measure the Supercap and LED parameters through the internal ADC. A dedicated TXMASK/TORCH input can be used for a torch button -or- reducing the battery current if a RF PA is operated at the same time TX Masking . A hardware enable pin -ON can be used as a reset input. The AS3630 is available in a space-saving WL-CSP 5x5 balls package measuring only 2.5x2.5x0.6mm and operates over the -30ºC to +85ºC temperature range. Reduce Supercap size Dual high efficiency boost converter with soft start allows small coils Instantaneous Torch operation for improved user experience Immediate Torch functions with charging of the Supercap Tiny external coils 4MHz fixed frequency DCDC System Safety 10bit ADC converter for system monitoring with Protection functions Automatic Flash Timeout timer to protect the LED Overvoltage and undervoltage Protection LED NTC and device Overtemperature Protection LED short/open circuit protection Improved thermal performance ground = heat sink Flash LED s cathode connected to ground: 8A Supercap Flash Driver AS3630 1 Fine control of current to fit to applications Full control and hardware ON pin for easier system integration LED currents fully adjustable by interface • 8A for 33ms and 6A for 120ms Flash , 2.9mA 272mA for torch • 1mA-8mA indicator current Interface with Interrupt output and ON pin Figure AS3630 2 Typical Operating Circuit The device is ideal for Flash/Torch for mobile phones, DSC and Tablets. Typical Operating Circuit Shows the main function blocks of the AS3630. AS3630 2 8A Supercap Flash Driver Pin Assignment Figure AS3630 3 Pin Assignments Top View 8A Supercap Flash Driver AS3630 3 Pin Description Figure AS3630 4 Pin Description Pin Number A1 A2 A3 A4 A5 B1 B2 B4 B5 C1 C2 C3 C4 C5 Pin Name STROBE NTC SDA2 SCL2 AGND VSUPERCAP IND_OUT TXMASK/TORCH Ordering Information Figure AS3630 56 Ordering Information The devices are available as standard products as shown below. Ordering Code Delivery Package AS3630-ZWLT 8A Supercap Flash Driver with Torch and Indicator Tape & Reel 25-pin WL-CSP 5x5 balls 0.5mm pitch, 2.5x2.5x0.6mm size RoHS compliant / Pb-Free AS3630-ZWLT AS3630Z Temperature Range -30ºC - 85ºC WL Package Wafer Level Chip Scale Package WL-CSP T Delivery Form Tape & Reel Note All products are RoHS compliant and ams green. Buy our products or get free samples online at Technical Support is available at For further information and requests, email us at or find your local distributor at 8A Supercap Flash Driver AS3630 69 Soldering Information Figure AS3630 57 Solder Reflow Profile The PCB assembly should be instrumented and the reflow oven’s process parameters established to ensure the solder paste manufacturer’s reflow profile specification is met during the assembly process. See Figure below. The maximum PCB temperature recommended by the supplier must not be exceeded. Profile Feature Average ramp-up rate Tsmax to TP Preheat • Temperature Min Tsmin • Temperature Max Tsmax • Time tL Time maintained above • Temperature TL • Time tL Peak/classification temperature TP Time within 5 °C of actual peak temperature TP Ramp-down rate Time 25 °C to peak temperature Lead-free Assembly 3 °C/second max. 150 °C 200 °C 60 120 seconds 217 °C 60 150 seconds 260 °C 30 seconds 6 °C/second max. 8 minutes max. JEDEC standard Lead-free reflow profile According to J-STD-020D. Figure AS3630 58 Recommended Reflow Soldering Profile Temperature [°C] TL Tsmax Tsmin TL Ramp Up Critical Zone TL to TP Ramp Down 25 AS3630 70 t 25°C to Peak Temperature Time [s] 8A Supercap Flash Driver

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AS3630
8A Supercap Flash Driver

Figure AS3630 1 Key Benefits and Features

The AS3630 is an inductive high efficient 4MHz dual DCDC step up converter with several sources. It supports the charging of a Supercap, its voltage balancing and a highly efficient DCDC step up from the Supercap to the LED and from VIN to the LED to power the flash LED with up to 8A. The AS3630 supports the pre-charging of the Supercap to VIN to reduce the startup time for the flash without reducing the lifetime of the Supercap.

The system concept supports an immediate torch function without first charging the Supercap.

The AS3630 includes flash timeout, over- undervoltage, overtemperature and LED short circuit protection.

The AS3630 is controlled by an interface for adjustment of the currents and timings, set the end of charge voltage and measure the Supercap and LED parameters through the internal ADC. A dedicated TXMASK/TORCH input can be used for a torch button -or- reducing the battery current if a RF PA is operated at the same time TX Masking . A hardware enable pin -ON can be used as a reset input.

The AS3630 is available in a space-saving WL-CSP 5x5 balls package measuring only 2.5x2.5x0.6mm and operates over the -30ºC to +85ºC temperature range.

Reduce Supercap size

Dual high efficiency boost converter with soft start allows small coils

Instantaneous Torch operation for improved user experience

Immediate Torch functions with charging of the Supercap

Tiny external coils
4MHz fixed frequency DCDC

System Safety
10bit ADC converter for system monitoring with Protection functions Automatic Flash Timeout timer to protect the LED Overvoltage and undervoltage Protection LED NTC and device Overtemperature Protection LED short/open circuit protection

Improved thermal performance ground = heat sink Flash LED s cathode connected to ground:
8A Supercap Flash Driver

AS3630 1

Fine control of current to fit to applications

Full control and hardware ON pin for easier system integration

LED currents fully adjustable by interface
• 8A for 33ms and 6A for 120ms Flash , 2.9mA 272mA for torch
• 1mA-8mA indicator current

Interface with Interrupt output and ON pin

Figure AS3630 2 Typical Operating Circuit

The device is ideal for Flash/Torch for mobile phones, DSC and Tablets.

Typical Operating Circuit Shows the main function blocks of the AS3630.

AS3630 2
8A Supercap Flash Driver

Pin Assignment

Figure AS3630 3 Pin Assignments Top View
8A Supercap Flash Driver

AS3630 3

Pin Description

Figure AS3630 4 Pin Description

Pin Number

A1 A2 A3 A4 A5 B1 B2

B4 B5 C1 C2 C3 C4 C5

Pin Name

STROBE NTC SDA2 SCL2 AGND

VSUPERCAP IND_OUT

TXMASK/TORCH
Ordering Information
Figure AS3630 56 Ordering Information

The devices are available as standard products as shown below.
Ordering Code

Delivery

Package

AS3630-ZWLT
8A Supercap Flash Driver with Torch and Indicator

Tape & Reel
25-pin WL-CSP 5x5 balls 0.5mm pitch, 2.5x2.5x0.6mm size RoHS compliant / Pb-Free

AS3630-ZWLT AS3630Z Temperature Range -30ºC - 85ºC WL Package Wafer Level Chip Scale Package WL-CSP T Delivery Form Tape & Reel

Note All products are RoHS compliant and ams green. Buy our products or get free samples online at

Technical Support is available at

For further information and requests, email us at or find your local distributor at
8A Supercap Flash Driver

AS3630 69

Soldering Information

Figure AS3630 57 Solder Reflow Profile

The PCB assembly should be instrumented and the reflow oven’s process parameters established to ensure the solder paste manufacturer’s reflow profile specification is met during the assembly process. See Figure below.

The maximum PCB temperature recommended by the supplier must not be exceeded.

Profile Feature

Average ramp-up rate Tsmax to TP

Preheat
• Temperature Min Tsmin
• Temperature Max Tsmax
• Time tL

Time maintained above
• Temperature TL
• Time tL

Peak/classification temperature TP

Time within 5 °C of actual peak temperature TP

Ramp-down rate

Time 25 °C to peak temperature

Lead-free Assembly
3 °C/second max.
150 °C 200 °C 60 120 seconds
217 °C 60 150 seconds
260 °C 30 seconds 6 °C/second max. 8 minutes max.

JEDEC standard Lead-free reflow profile According to J-STD-020D.

Figure AS3630 58 Recommended Reflow Soldering Profile

Temperature [°C]

TL Tsmax

Tsmin TL

Ramp Up

Critical Zone TL to TP

Ramp Down
25 AS3630 70
t 25°C to Peak Temperature

Time [s] 8A Supercap Flash Driver

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Datasheet ID: AS3630-ZWLT 519693