5V/400mA Low Drop Voltage ILE4275 TECHNICAL DATA

Size: px

Start display at page:

Download "5V/400mA Low Drop Voltage ILE4275 TECHNICAL DATA"

Rudolf Butler
6 years ago
Views:

The IC is used in power supply units of electronic devices, including automotive electronics. Maximum input voltage is 45 V.

1 TECHNICAL DATA 5V/400mA Low Drop Voltage ILE4275 is integrated circuits of voltage regulator 5V/400 ma with low-drop voltage. The IC of voltage regulator 5V/400 ma are purposed to supply DC voltage 5V with 2% accuracy at a range of input voltages from 5,6 to 40 V, with drop voltage 0,5V at load current 300 ma. The IC is used in power supply units of electronic devices, including automotive electronics. Maximum input voltage is 45 V. The IC is tolerant to over voltage of both polarities (positive & negative), provide internal current limitation and output voltage thermal shutdown. Reset function is available. The IC realized in 5-pin plastic packages TO and TO ILE4275D2 TO ILE4275 ILE4275D0T TO ORDERING INFORMATION Device Operating Temperature Range Package Shipping ILE4275D2 TO Tube ILE4275D2T T j = -40 to 150 C TO Tape & Reel ILE4275DOT TO Tape & Reel Features High accuracy of the output voltage 5 V 2%; Low-drop voltage ; Built-in overheating protection; Reverse polarity proof; Low consumption current; Input voltage up to 45 V; Suitable for use in automotive electronics; Wide junction temperature range C; Reset function. 1 January 2011, Ver.01

2 Table 1. Pins Description Chip pad number Package pin number Symbol I Input RO Reset output Function GND Common pin (Ground) D Reset delay pin 05, Q Output Not bonded (not used) Block Diagram Temperature sensor Saturation control & protection circuit I 01 Adjustment Reference voltage source + - A1 A2 VT1 R1 Reset generator R2 05 R Q RO D R3 03 GND A1 control amplifier; A2 buffer; R1 R4 resistors; VT1 - transistor Figure 1.

3 Table 2. Absolute Maximum Ratings Symbol Parameter Min. Max. Unit Т J Junction temperature -40* 150 Т stg Storage temperature o C V I Input voltage V V D Reset delay pin voltage -0.3** 7** V I D Reset delay pin current -2 2 ma V R Reset pin voltage -0,3** 25** V I RO Reset pin current -5 5 ma V Q Output voltage -1,0** 16** V * Ambient temperature is indicated. ** Voltage is not applied to input I * Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. o C Table 3. Recommended Operation Rate Symbol Parameter Min. Max. Unit Т J Junction temperature -40* 150 V I Input voltage 5,6 40 V V Q Output voltage 4,9 5,1 V Note: Maximum power P tot,w, dissipated by IC at ambient temperature T A, is calculated by formula: P tot = (150 - T A ) / R th j-a, (1) 150 maximum permissible operating junction temperature, O C. R th j-a - thermal resistance junction ambient (for IC without heat sink), o C /W, for ILE4275 without heat sink R th ja is equal 80 o C /W for ILE4275 without heat sink R th ja is equal 65 o C /W for IC with heat sink R th ja is calculated by formula R th j-a = R th j-c + R th c-a, ( 2 ) R th j-c - thermal resistance junction case, o C /W. R th jc = 4 o C/W. Thermal resistance case-ambient R th c-a is determined by heat sink design and is selected by IC customer. Application circuit and heat sink and ambient temperature have to provide junction temperature not more T J 150 O C. * Ambient temperature is indicated. o C

4 Table 4. Electric Parameters (V I = 13.5 V, V ADJ > 2.0 V, -40 C < T J < 150 C unless otherwise specified) Symbol Parameter Test Condition Min. Max. Unit I q Consumption current I Q = -1 ma, T J = 25 o C ma I q = I I - I Q I Q = -1 ma, T J < 85 o C I Q = -250 ma - 10 I Q = -400 ma - 22 I Qmax Maximum output current ma V dr Drop voltage I Q = -300 ma V Note 2 V Q Output voltage 6 V V I 28 V V -5 ma I Q -400 ma 6 V V I 40 V ma I Q -200 ma V Q(V) Supply (input) voltage regulation 8 V V I 32 V mv of output voltage I Q = -5 ma V Q(I) Load current regulation of output voltage -5 ma I Q -400 ma - 30 mv Reset generator parameters V RT Reset generator switching V threshold voltage I ROH Reset output leakage V ROH = 5 V - 10 A current V ROL Reset output low level voltage R ext 5 k, V V Q 1 V V DL RO output switching to low - 0,2 0.7 V threshold voltage V DV RO output switching to high - 1,5 2.2 V threshold voltage I d Charge current V D = 1 V 3,0 9.0 A t d Reset delay time C D = 47 nf ms t RR Reset reaction time C D = 47 nf - 2 s Notes 1. Measurement of electric parameters is processed with connected input capacities C I1 = 100 F, C I2 = 100 nf and output capacity C Q = 22 F. 2. Drop voltage V dr = V I - V Q is measured, when the output voltage V Q has dropped 100mV from the nominal value obtained at V I = 13.5 V. * Ambient temperature is indicated.

5 Table 5. Typical Electric Parameters (V I = 13.5 V, -40 C < T J < 150 C unless otherwise specified) Symbol Parameter Test Condition Typical Value Unit PSRR dv Q /dt Ripple rejection ratio Temperature factor of output voltage f r = 100 Hzц, I Q = -100 ma V r = 0,5** V (p - p) 60 db - 0,5 mv/ o C * Ambient temperature is indicated. ** It is permitted to measure at V r(р - p) = 3 V, but for that PSRR norm to be revised Typical Application Diagram Input I Q + C1 C F 100nF ILE4275 C3 22 F Output R1 5 k 04 D RO 02 GND 03 Figure 2.

6 Operation Timing Diagram V I, V (pin 01) V Q, V (pin 05) U RT, В t RR V D, V (pin 04) V DU, V DV = Dt Id C D V DL, V V R, V (pin 02) td t RR U ROH, V U ROL, V t, s Power-on- Reset Thermal shutdown Voltage dip at input Undervoltage at input Overload at output Figure 3.

7 Package Dimension TO-263-5

8 TO-252-5

GM4275 GM4275 V2.03. Features. Description. Applications. Block Diagram WIDE INPUT RANGE 5V LOW DROPOUT REGULATOR WITH RESET FLAG

GM4275 GM4275 V2.03. Features. Description. Applications. Block Diagram WIDE INPUT RANGE 5V LOW DROPOUT REGULATOR WITH RESET FLAG Description The GM4275 series of fixed output, micro-power voltage regulators is designed for applications which require wide input voltage range up to 45V. The GM4275 is an excellent choice for the use