Siemens TLE4276V85, TLE4276V, TLE4276SV50, TLE4276SV85, TLE4276SV10 Datasheet

Low-Drop Voltage Regulator

TLE 4276

	Features
	•	Output voltage tolerance ≤ ± 4%
	• Low-drop voltage
	•	Inhibit input
	• Very low current consumption
	•	Short-circuit-proof
	•	Reverse polarity proof
	• Suitable for use in automotive electronics				P-TO220-5-3
	Type		Ordering Code	Package
	TLE 4276 V50		Q67000-A9262	P-TO220-5-3
	TLE 4276 V85		Q67000-A9263	P-TO220-5-3
	TLE 4276 V10		Q67000-A9264	P-TO220-5-3
	TLE 4276 G V50		Q67006-A9266	P-TO220-5-122
	TLE 4276 G V85		Q67006-A9268	P-TO220-5-122	P-TO220-5-43
	TLE 4276 G V10		Q67006-A9270	P-TO220-5-122
	TLE 4276 S V50		Q67000-A9267	P-TO220-5-43
	TLE 4276 S V85		Q67000-A9269	P-TO220-5-43
	TLE 4276 S V10		Q67000-A9271	P-TO220-5-43
	TLE 4276 V		Q67000-A9265	P-TO220-5-3
	TLE 4276 SV		Q67000-A9273	P-TO220-5-43
	TLE 4276 GV		Q67006-A9272	P-TO220-5-122
	▼ TLE 4276 D V50		Q67006-A9358	P-TO252-5-1	P-TO220-5-122
	▼ TLE 4276 DV		Q67006-A9361	P-TO252-5-1
		SMD = Surface Mounted Device
	▼ New type

P-TO252-5-1 (D-PAK)

Semiconductor Group

1

1998-11-01

TLE 4276

Functional Description

The TLE 4276 is a low-drop voltage regulator in a TO220 package. The IC regulates an

input voltage up to 40 V to VQrated = 5.0 V (V50), 8.5 V (V85), 10 V (V10) and adjustable voltage (V). The maximum output current is 400 mA. The IC can be switched off via the

inhibit input, which causes the current consumption to drop below 10 µA. The IC is short- circuit-proof and incorporates temperature protection that disables it at over-tempera- ture.

Dimensioning Information on External Components

The input capacitor CI is necessary for compensating line influences. Using a resistor of approx. 1 Ω in series with CI, the oscillating of input inductivity and input capacitance can be damped. The output capacitor CQ is necessary for the stability of the regulation circuit. Stability is guaranteed at values CQ ≥ 22 µF and an ESR of ≤ 3 Ω within the operating temperature range.

Circuit Description

The control amplifier compares a reference voltage to a voltage that is proportional to the output voltage and drives the base of the series transistor via a buffer. Saturation control as a function of the load current prevents any oversaturation of the power element. The IC also incorporates a number of internal circuits for protection against:

•Overload

•Overtemperature

•Reverse polarity

Semiconductor Group

2

1998-11-01

TLE 4276

Pin Configuration

(top view)

P-TO220-5-3

1

5

P-TO220-5-43 P-TO220-5-122

1

5

1

5

Ι GND Q

INH N.C.

AEP02043

P-TO252-5-1

	GND
1	5

Ι Q INH N.C.

(VA)

AEP02560

Ι GND	Q
INH N.C.	Ι GND Q
(VA)

AEP02041	INH N.C.
	(VA)
	AEP02042

Figure 1

Pin Definitions and Functions

Pin No.	Symbol	Function
1	I	Input; block to ground directly at the IC with a ceramic capacitor.
2	INH	Inhibit; low-active input
3	GND	Ground
4	N.C.	Not connected for V50, V85, V10
	VA	Voltage Adjust Input; only for adjustable output from external
		voltage divider.
5	Q	Output; block to ground with a ≥ 22 F capacitor.
Semiconductor Group		3	1998-11-01

TLE 4276

	Temperature	Saturation
	Sensor	Control and
		Protection
		Circuit
Ι	1		6	Q
	Control
	Amplifier	Buffer
	Bandgap
	Reference
			*)
		**)
	2	4	3
	INH	VA	GND

*)	For fixed Voltage Regulator only
**)	For adjustable Voltage Regulator only	AEB02044

Figure 2

Block Diagram

Semiconductor Group

4

1998-11-01

TLE 4276

Absolute Maximum Ratings

Tj = – 40 to 150 °C

Parameter	Symbol	Limit Values		Unit	Test Condition
		min.	max.
Voltage Regulator
Input
Voltage	VI	– 42	45	V	–
Current	II	–	–	–	Internally limited
Inhibit
Voltage	VINH	– 42	45	V	–
Voltage Adjust Input
Voltage	VVA	– 0.3	10	V	–
Output
Voltage	VQ	– 1.0	40	V	–
Current	IQ	–	–	–	Internally limited
Ground
Current	IGND	–	100	mA	–
Temperature
Junction temperature	Tj	–	150	°C	–
Storage temperature	Tstg	– 50	150	°C	–

Note: Maximum ratings are absolute ratings; exceeding any one of these values may cause irreversible damage to the integrated circuit.

Semiconductor Group

5

1998-11-01