ST662A ST Microelectronics, ST662A Datasheet
ST662A
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ST662A Summary of contents
Page 1
... LOGIC CONTROLLED ELECTRONIC SHUTDOWN: 1µA JUST CAPACITORS NEEDED (NO INDUCTOR) DESCRIPTION The ST662A is a regulated charge pump DC-DC converter. It provides 12V ± 5% output voltage to program byte-wide flash memory, and can supply 30mA output current from input as low as 4.75V. A logic controlled shut down pin that interfaces directly with microprocessor reduces the supply current to only 1µ ...
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... Connect to GND for Normal Operation. In Shutdown mode the charge pumps are turned off and V 2/13 Parameter (for AB SERIES) Parameter DIP-8 ST662ABN ST662ACN Name and Function = V When in Shutdown Mode OUT OUT CC Value Unit - 500 °C - -40 to 150 °C SO-8 Unit 20 °C/W SO-8 (*) ST662ABD ST662ACD . CC ...
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... SHDN SHDN 5V 100 µA SHDN CC O Figure 3 : Supply Current vs Temperature Figure 4 : Supply Current vs Supply Voltage ST662A = 4.5V to 5.5V Min. Typ. Max. 11.4 12 12.6 11.4 12 12.6 100 500 1 10 -50 - 0.4 2.4 400 ...
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... ST662A Figure 5 : SHDN Pin Current vs Temperature Figure 6 : Output Voltage vs Shutdown Input Voltage Figure 9 : Test Circuit 4/13 Figure 7 : Output Voltage vs Shutdown Input Voltage Figure 8 : Output Voltage vs Shutdown Input Voltage ...
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... When it is held low the output voltage rises to +12V. Fig.11 CC SHDN CC goes from 0V to 5V. SHDN Figure 12 : Entering Shutdown NOTE voltage. After S1 will be opened and S2 CC goes from 5V to 0V. Input logic levels of oscillator will be blocked and OUT will be. low as 1µA. The fig.12 shows the = 200 µA OUT ST662A 5/13 ...
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... ST662A APPLICATION CIRCUIT Based on fast charge/discharge of capacitors, this circuit involves high di/dt values limited only by R switches. This implies a critical layout design due to the need to minimize inductive paths and place capacitors as close as possible to the device. A good layout design is strongly recommended for noise reason. For best performance, use very short connections to the capacitors and the values shown in table 1. C3 and C4 must have low ESR in order to minimize the output ripple. Their values can be reduced to 2µ ...
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... TABLE 1: List of Components CAPACITOR Charge Pump C1 Charge Pump C1 Input C3 Output C4 Decoupling C5 ST662A OUTPUT PERFORMANCE Figure 15 : Output Voltage vs Output Current Figure 16 : Efficiency vs Output Current TYPE Ceramic Ceramic Electrolytic Tantalum Electrolytic Tantalum Ceramic Figure 17 : Load Transient Response NOTE 30mA CC OUT ...
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... ST662A HOW TO INCREASE OUTPUT CURRENT OR OUTPUT VOLTAGE CAPABILITY Current capability is limited by R two or more ST662A devices; each one of them can supply 30mA. The figure 19 shows the electric schematic. The capacitors possible, you can place two different capacitors, each of them of half value, very close to the respective integrated circuit ...
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... Figure 20 : Application Circuit for Output Voltage greater than 12V Figure 21 : Output Voltage for the Application with Two Device in Parallel Figure 22 : Output Voltage for Application with Output Voltage greater than 12V ST662A 9/13 ...
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... ST662A DIM. MIN 0.7 B 1. 0.44 10/13 Plastic DIP-8 MECHANICAL DATA mm. TYP MAX. 3.3 1.65 1.04 0.5 0.5 9.8 8.8 2.54 7.62 7.62 7.1 4.8 3.3 1.6 inch MIN. TYP. MAX. 0.130 0.028 0.055 0.065 0.036 0.041 0.020 0.015 0.020 0.386 0.346 0.100 0.300 0.300 0.280 0.189 0.130 0.017 0.063 P001F ...
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... SO-8 MECHANICAL DATA mm. DIM. MIN. A 1.35 A1 0.10 A2 1.10 B 0.33 C 0.19 D 4. 5.80 h 0.25 L 0.40 k ddd TYP MAX. MIN. 1.75 0.053 0.25 0.04 1.65 0.043 0.51 0.013 0.25 0.007 5.00 0.189 4.00 0.150 1.27 6.20 0.228 0.50 0.010 1.27 0.016 ˚ (max.) 8 0.1 ST662A inch TYP. MAX. 0.069 0.010 0.065 0.020 0.010 0.197 0.157 0.050 0.244 0.020 0.050 0.04 0016023/C 11/13 ...
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... ST662A DIM. MIN 12 8.1 Bo 5.5 Ko 2.1 Po 3.9 P 7.9 12/13 Tape & Reel SO-8 MECHANICAL DATA mm. TYP MAX. 330 13.2 22.4 8.5 5.9 2.3 4.1 8.1 inch MIN. TYP. MAX. 12.992 0.504 0.519 0.795 2.362 0.882 0.319 0.335 0.216 0.232 0.082 0.090 0.153 0.161 0.311 0.319 ...
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... All other names are the property of their respective owners Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. © 2004 STMicroelectronics - All Rights Reserved STMicroelectronics GROUP OF COMPANIES http://www.st.com ST662A 13/13 ...