MC33340 ON Semiconductor, MC33340 Datasheet
MC33340
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MC33340 Summary of contents
Page 1
... MC33340, MC33342 Battery Fast Charge Controllers The MC33340 and MC33342 are monolithic control IC’s that are specifically designed as fast charge controllers for Nickel Cadmium (NiCd) and Nickel Metal Hydride (NiMH) batteries. These devices feature negative slope voltage detection as the primary means for fast charge termination ...
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... If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. 1. This device series contains ESD protection and exceeds the following tests: Human Body Model 2000 V per MIL−STD−883, Method 3015 MC33340, MC33342 Symbol V CC ...
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... Operating (V = 6.0 V) Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Whichever voltage is lower. 3. Tested junction temperature range for the MC33340/342: MC33340, MC33342 (V = 6.0 V, for typical values T = 25°C, for min/max values T ...
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... Figure 4. Temperature Select Threshold Voltage versus Temperature 3.1 Startup Threshold (V Increasing) CC 3.0 2.9 2.8 Minimum Operating Threshold (V Decreasing) CC 2.7 − 50 − AMBIENT TEMPERATURE (°C) A Figure 6. Undervoltage Lockout Thresholds versus Temperature MC33340, MC33342 6 8.0 0 −8.0 −16 75 100 125 − 50 − 25° ...
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... In order to address these issues, an economical and flexible fast charge controller was developed. The MC33340/342 contains many of the building blocks and protection features that are employed in modern high performance battery charger controllers that are specifically designed for Nickel Cadmium and Nickel Metal Hydride batteries ...
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... Figure 9. Typical Charge Characteristics for NiCd and NiMh Batteries The MC33340/342 starts up in the fast charge mode when power is applied change to the trickle mode can CC occur as a result of three possible conditions. The first is if the V input voltage is above 2 below 1.0 V. Above sen 2 ...
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... V − 0 MC33340, MC33342 in voltage during the holdoff time and the input voltage never rises above that last detected level, the Fast/Trickle ) has elapsed output will latch into a low state. The negative slope voltage hold detector has a maximum resolution of 2 ...
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... Charging of battery packs that are used in portable power tool applications typically use temperature as the only means for fast charge termination. The MC33340/342 can − 0.7 V. Under CC be configured in this manner by constantly resetting the −DV detection logic ...
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... It is possible to enter this test mode during operation if the equivalent battery pack voltage was to fall below 1.0 V. This will not present a problem since the device would normally switch from fast to trickle mode under these MC33340, MC33342 Controller Operation enters this voltage range, and a reset pulse is then applied to sen ...
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... V in – V f(D3) – V Batt I chg(trickle) + This application combines the MC33340/342 with an adjustable three terminal regulator to form an isolated secondary side battery charger. Regulator IC2 operates as a constant current source with R7 setting the fast charge level. The trickle charge level is set by R5. The R2/R1 divider should be adjusted so that the V input is less than 2.0 V when the batteries are fully charged. The printed circuit board shown below will accept the several TO− ...
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... OC1 The MC33340/342 can be combined with any of the devices in the UC3842 family of current mode controllers to form a switch mode battery charger. In this example, optocouplers OC1 and OC2 are used to provide isolated control signals to the UC3842. During battery voltage sensing, OC2 momentarily grounds the Output/Compensation pin, effectively turning off the charger ...
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... Compensation The MC33340/342 can be used to control the MC34166 or MC34167 power switching regulators to produce an economical and efficient fast charger. These devices are capable of operating continuously in current limit with an input voltage range of 7 The typical charging current for the MC34166 and MC34167 is 4.3 A and 6.5 A respectively. Resistors R2 and R1 are used to set the battery pack fast charge float voltage. If precise float voltage control is not required, components R1, R2, R3 and C1 can be deleted, and Pin 1 must be grounded ...
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... MC33340PG MC33342D MC33342DG MC33342DR2 MC33342DR2G MC33342P MC33342PG †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. MC33340, MC33342 Package SO−8 SO−8 (Pb−Free) SO−8 SO−8 (Pb−Free) PDIP−8 PDIP−8 (Pb− ...
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... F −A− NOTE 2 C −T− N SEATING PLANE 0.13 (0.005) M MC33340, MC33342 PACKAGE DIMENSIONS PDIP−8 P SUFFIX CASE 626−05 ISSUE http://onsemi.com 14 NOTES: 1. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 2. PACKAGE CONTOUR OPTIONAL (ROUND OR SQUARE CORNERS) ...
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... H D 0.25 (0.010 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. MC33340, MC33342 PACKAGE DIMENSIONS SOIC−8 NB CASE 751−07 ISSUE 0.10 (0.004) ...
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... P.O. Box 61312, Phoenix, Arizona 85082−1312 USA Phone: 480−829−7710 or 800−344−3860 Toll Free USA/Canada Fax: 480−829−7709 or 800−344−3867 Toll Free USA/Canada Email: orderlit@onsemi.com MC33340, MC33342 N. American Technical Support: 800−282−9855 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2− ...