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TPS61300YFFR Datasheet(PDF) 4 Page - Texas Instruments

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No. de Pieza. TPS61300YFFR
Descripción  TPS6130xx 1.5-A and 4.1-A Multiple LED Camera Flash Driver With I2C Compatible Interface
Descarga  70 Pages
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS61300YFFR Datasheet(HTML) 4 Page - Texas Instruments

 
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TPS61300, TPS61301
TPS61305, TPS61305A, TPS61306
SLVS957E – JUNE 2009 – REVISED APRIL 2016
www.ti.com
Product Folder Links: TPS61300 TPS61301 TPS61305
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Copyright © 2009–2016, Texas Instruments Incorporated
(1)
Applicable to the TPS61300 and TPS61306 only.
(2)
Applicable to the TPS61300 and TPS61301 only.
(3)
Applicable to the TPS61301 and TPS61305A only.
(4)
Applicable to the TPS61305A and TPS61306 only.
Table 2. Pin Functions
PIN
I/O
DESCRIPTION
NAME
NO.
AGND
A4
Analog ground.
AVIN
E4
I
This is the input voltage pin of the device. Connect directly to the input bypass capacitor.
BAL
A3
O
Balancing output for dual cells super-capacitor. In steady-state operation, this output compensates for
leakage current mismatch between the cells.
ENDCL(1)
D3
I
Hardware control pin for DC light operation. Pulling this pin high forces the device into DC light
operation. The ENDCL input is only active when the device is programmed into shutdown or voltage
mode regulation. LED1–3 inputs are controlled according to ENLED[3:1] bit settings.
ENVM(2)
C4
I
Enable pin for voltage mode converter. Pulling this pin high forces the device into voltage regulation
mode (VOUT is preset to a fixed value, 4.95 V).
FLASH_SYNC
B4
I
Flashlight strobe pulse synchronization input.
FLASH_SYNC = LOW: The device is operating and regulating the LED current to the DC light current
level (DCLC).
FLASH_SYNC = HIGH: The device is operating and regulating the LED current to the flashlight
current level (FC).
GPIO/PG
D4
I/O
This pin can either be configured as a general purpose input/output pin (GPIO) or either as an open-
drain or a push-pull output to signal when the converters output voltage is within the regulation limits
(PG). Per default, the pin is configured as an open-drain power-good output.
HC_SEL
B3
I
Extended high-current mode selection input. This pin must not be left floating and must be
terminated.
HC_SEL = LOW: LED direct drive mode. The power stage is active and the maximum LED currents
are defined as 400 mA (ILED1), 800 mA (ILED2), and 400 mA (ILED3).
HC_SEL = HIGH: Energy storage mode. In flash mode, the power stage is either active with
reduced current capability or disabled. The maximum LED current is defined as 925 mA (ILED1),
1850 mA (ILED2), and 925 mA (ILED3).
INDLED
A1
O
This pin provides a constant current source to drive low VF LEDs. Connect to LED anode.
LED1
E2
I
LED return input. This feedback pin regulates the LED current through the internal sense resistor by
regulating the voltage across it. The regulation operates with typically 400-mV (HC_SEL = L) or 400-
mV (HC_SEL = H) dropout voltage. Connect to the cathode of the LEDs.
LED2
E1
I
LED3
E3
I
NRESET(3)
D3
I
Master hardware reset input. NRESET = LOW: The device is forced in shutdown mode and the I2C
control I/F is reset. NRESET = HIGH: The device is operating normally under the control of the I2C
interface.
PGND
D1, D2
Power ground. Connect to AGND underneath IC.
SCL
B2
I
Serial interface clock line. This pin must not be left floating and must be terminated.
SDA
B1
I/O
Serial interface address/data line. This pin must not be left floating and must be terminated.
SW
C1, C2
I/O
Inductor connection. Drain of the internal power MOSFET. Connect to the switched side of the
inductor. SW is high impedance during shutdown.
TS(4)
C4
I/O
NTC resistor connection. This pin can be used to monitor the LED temperature. Connect a 220-k
NTC resistor from the TS input to ground. In case this functionality is not desired, the TS input must
be tied to AVIN or left floating.
Tx-MASK
C3
I
RF PA synchronization control input. Pulling this pin high turns the LED from flashlight to DC light
operation, thereby reducing almost instantaneously the peak current loading from the battery.
VOUT
A2
O
This is the output voltage pin of the converter.


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