TLE4307D V38

TLE4307D V38 Datasheet

TLE 4307

Part	Datasheet
TLE4307D V38	TLE4307D V38 (pdf)

Related Parts	Information
TLE4307D V33	TLE4307D V33

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Power Charge Pump and Low Drop Voltage Regulator TLE 4307 Power Charge Pump Circuit Features • High Current Capability • Short Circuit Protection • Overtemperature Protection • Active Zener Circuit Very Low Drop Voltage Regulator Features • V or V output voltage • Low Output Voltage Tolerance • High Current Capability 800 mA • Short Circuit Protection • Overtemperature Protection P-TO252-5-1 General Features • Optimized SMD Package • Industrial type P-TO252-5-11 Functional Description The TLE 4307 is a monolithic integrated power charge pump with a Low Drop Voltage Regulator. The power charge pump loads an energy storage capacitor at pin C. The voltage regulator supplies V or V out of this storage capacitor with up to 800 mA output current. The TLE 4307 is intended for use with DC supplies for consumer or industrial applications. Type TLE 4307 DV33 TLE 4307 DV38 Data Sheet Ordering Code Q67006-A9444 Q67006-A9415 Package P-TO252-5-1, P-TO252-5-11 P-TO252-5-1, P-TO252-5-11 P-TO252-5-1 P-TO252-5-11 TLE 4307 AEP02792 Figure 1 Pin Configuration top view Table 1 Pin No. 1 2 Pin Definitions and Functions Symbol Function Input Connect to the input voltage source Charge-Pump Output Connect to the energy reservoir capacitor to GND Ground Slewrate Control Input a capacitor from this pin to the Input pin I controls the slewrate during recirculation Regulator Output connect to GND with a capacitor as specified for CQ Data Sheet TLE 4307 I1 SL 4 TLE 4307 Power Charge Pump Very Low-Drop Regulator AES02793 Figure 2 Block Diagram Circuit Description The TLE 4307 consists of 2 stages, the charge pump and the very low drop voltage regulator. Charge Pump The power stage is used as a switching element, that is driven by a buffer. A current source keeps the power stage on. When the output C of the charge pump reaches VC,off, the power stage is switched off. It is active clamped, when the input I reaches VI,cl. Optional, an external capacity can be connected between pin SL and I to limit the slew rate at the input, when an inductive load drives the IC. Saturation control as a function of the load current prevents any oversaturation of the power element. The regulator is additionally protected against overload and overtemperature. Very Low Drop Regulator The control amplifier compares a reference voltage, made highly accurate by resistance balancing, with a voltage proportional to the output voltage and drives the base of the series PNP transistor via a buffer. Saturation control as a function of the load current prevents any oversaturation of the power element. The regulator is additionally protected against overload and overtemperature. Data Sheet TLE 4307 Vac = 12 V LS = 4 mH VLine RS = 15 4x1N4001 or B40C800

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Power Charge Pump and Low Drop Voltage Regulator

TLE 4307

Power Charge Pump Circuit Features
• High Current Capability
• Short Circuit Protection
• Overtemperature Protection
• Active Zener Circuit

Very Low Drop Voltage Regulator Features
• V or V output voltage
• Low Output Voltage Tolerance
• High Current Capability 800 mA
• Short Circuit Protection
• Overtemperature Protection

P-TO252-5-1

General Features
• Optimized SMD Package
• Industrial type

P-TO252-5-11

Functional Description

The TLE 4307 is a monolithic integrated power charge pump with a Low Drop Voltage Regulator. The power charge pump loads an energy storage capacitor at pin C. The voltage regulator supplies V or V out of this storage capacitor with up to 800 mA output current. The TLE 4307 is intended for use with DC supplies for consumer or industrial applications.

Type TLE 4307 DV33 TLE 4307 DV38

Data Sheet
Ordering Code Q67006-A9444 Q67006-A9415

Package P-TO252-5-1, P-TO252-5-11 P-TO252-5-1, P-TO252-5-11

P-TO252-5-1 P-TO252-5-11

TLE 4307

AEP02792

Figure 1 Pin Configuration top view

Table 1 Pin No. 1 2

Pin Definitions and Functions

Symbol Function

Input Connect to the input voltage source

Charge-Pump Output Connect to the energy reservoir
capacitor to GND

Ground

Slewrate Control Input a capacitor from this pin to the Input
pin I controls the slewrate during recirculation

Regulator Output connect to GND with a capacitor as specified
for CQ

Data Sheet

TLE 4307

I1 SL 4

TLE 4307

Power Charge Pump

Very Low-Drop

Regulator

AES02793

Figure 2 Block Diagram

Circuit Description

The TLE 4307 consists of 2 stages, the charge pump and the very low drop voltage regulator.

Charge Pump

The power stage is used as a switching element, that is driven by a buffer. A current
source keeps the power stage on. When the output C of the charge pump reaches VC,off, the power stage is switched off. It is active clamped, when the input I reaches VI,cl.

Optional, an external capacity can be connected between pin SL and I to limit the slew rate at the input, when an inductive load drives the IC. Saturation control as a function of the load current prevents any oversaturation of the power element. The regulator is additionally protected against overload and overtemperature.

Very Low Drop Regulator

The control amplifier compares a reference voltage, made highly accurate by resistance balancing, with a voltage proportional to the output voltage and drives the base of the series PNP transistor via a buffer. Saturation control as a function of the load current prevents any oversaturation of the power element. The regulator is additionally protected against overload and overtemperature.

Data Sheet

TLE 4307

Vac = 12 V

LS = 4 mH

VLine RS = 15
4x1N4001 or

B40C800

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Datasheet ID: TLE4307DV38 638753