L6382DTR STMicroelectronics, L6382DTR Datasheet - Page 16

• Manufacturer Part Number: L6382DTR
• Description: IC PWR MAGMNT MCU BALLAST SOIC20
• Manufacturer: STMicroelectronics
• Type: PFC/Ballast Controllerr

Specifications of L6382DTR

• Current - Supply: 2mA
• Voltage - Supply: 8.25 V ~ 17 V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-SOIC (7.5mm Width)
• Product: Charge Management
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Frequency: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Block description
7
7.1
7.2
16/22
Block description
Supply section
●
●
●
When the PSW switch is OFF, the diodes build a charge pump structure so that, connecting
the TPR pin to a switching voltage (through a capacitor) it is possible to supply the low
voltage section of the chip without adding any further external component. The diodes and
the switch are designed to withstand a current of at least 200mA
3.3V reference voltage
This block is used to supply the microcontroller; this source is able to supply 10mA in save
mode and 30mA in operating mode; moreover, during start-up when V
available, an additional circuit is ensures that, even sinking 3mA, the pin voltage doesn't
exceed 1.2V.
The reference is available until Vcc is above V
additional sinking circuit is enabled again.
µPUVLO (µPower Under Voltage Lock Out): This block controls the power
management of the L6382D ensuring the right current consumption in each operating
state, the correct V
up generator switching.
During Start-up the device sinks the current necessary to charge the external capacitor
on pin V
and the current consumption of the whole IC is less than 150µA.
When the voltage on V
µPUVLO block controls Vcc between VccON and VccSM by switching ON/OFF the
high voltage start-up generator.
HVSU (High-Voltage Start-Up generator): a 600V internal MOS transistor structure
controls the Vcc supply voltage during start-up and save mode conditions and it
reduces the power losses during operating Mode by switching OFF the MOS transistor.
The transistor has a source current capability of up to 30mA.
TPR (Two Point Regulator) & PWS: during normal mode, the TPR block controls the
PSW switch in order to regulate the IC supply voltage (V
between TPR(ON) and TPR(OFF) by switching ON and OFF the PSW transistor
Figure 11.
–
–
–
Vcc > TPRst: the PSW is switched ON immediately;
TPR(ON) < Vcc < TPRst: the PSW is switched ON at the following falling edge of
LGI;
Vcc < TPR(OFF): the PSW is switched OFF at the following falling edge on LGI.
CC
from the high voltage bus; in this state the other IC's functions are disabled
REF
CC
current capability, the driver enabling and the high-voltage start-
pin reaches VccON, the IC enters the save mode where the
REF(OFF)
; below that it turns off and the
CC
) to a value in the range
RMS
.
REF
is not yet
L6382D