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508 lines
12 KiB

5 years ago
  1. EESchema Schematic File Version 4
  2. LIBS:batterystation-cache
  3. EELAYER 26 0
  4. EELAYER END
  5. $Descr A4 11693 8268
  6. encoding utf-8
  7. Sheet 6 9
  8. Title ""
  9. Date ""
  10. Rev ""
  11. Comp ""
  12. Comment1 ""
  13. Comment2 ""
  14. Comment3 ""
  15. Comment4 ""
  16. $EndDescr
  17. $Comp
  18. L conn:CONN_01X08 P19
  19. U 1 1 5CBC6E54
  20. P 6550 3150
  21. F 0 "P19" H 6628 3191 50 0000 L CNN
  22. F 1 "LT1512" H 6628 3100 50 0000 L CNN
  23. F 2 "Housings_DIP:DIP-8_W7.62mm" H 6627 3054 50 0001 L CNN
  24. F 3 "" H 6550 3150 50 0000 C CNN
  25. 1 6550 3150
  26. 1 0 0 -1
  27. $EndComp
  28. Wire Wire Line
  29. 5200 3100 6350 3100
  30. Text Label 5200 3100 0 50 ~ 0
  31. ShutdownPin
  32. Wire Wire Line
  33. 6350 2900 6200 2900
  34. Wire Wire Line
  35. 6350 3000 5950 3000
  36. Text Label 5200 2800 0 50 ~ 0
  37. Vcomp
  38. Text Label 5200 2900 0 50 ~ 0
  39. Feedback
  40. Text Label 5200 3000 0 50 ~ 0
  41. I_Feedback
  42. Text Label 5200 3200 0 50 ~ 0
  43. Vcc
  44. Text Label 5200 3300 0 50 ~ 0
  45. GND_S
  46. Text Label 5200 3400 0 50 ~ 0
  47. GND
  48. Text Label 5200 3500 0 50 ~ 0
  49. Vsw
  50. Text HLabel 5200 3100 0 50 Input ~ 0
  51. LTShutdownPin
  52. Wire Wire Line
  53. 4200 3200 4200 2650
  54. Wire Wire Line
  55. 4200 3200 4350 3200
  56. $Comp
  57. L power:+5V #PWR0129
  58. U 1 1 5CBC7AC2
  59. P 4200 2650
  60. F 0 "#PWR0129" H 4200 2500 50 0001 C CNN
  61. F 1 "+5V" H 4215 2823 50 0000 C CNN
  62. F 2 "" H 4200 2650 50 0000 C CNN
  63. F 3 "" H 4200 2650 50 0000 C CNN
  64. 1 4200 2650
  65. 1 0 0 -1
  66. $EndComp
  67. $Comp
  68. L power:GND #PWR0130
  69. U 1 1 5CBC7C61
  70. P 3600 3400
  71. F 0 "#PWR0130" H 3600 3150 50 0001 C CNN
  72. F 1 "GND" H 3605 3227 50 0000 C CNN
  73. F 2 "" H 3600 3400 50 0000 C CNN
  74. F 3 "" H 3600 3400 50 0000 C CNN
  75. 1 3600 3400
  76. 1 0 0 -1
  77. $EndComp
  78. $Comp
  79. L device:C_Small C6
  80. U 1 1 5CBC7FC7
  81. P 4350 3300
  82. F 0 "C6" H 4442 3346 50 0000 L CNN
  83. F 1 "2.2uF" H 4442 3255 50 0000 L CNN
  84. F 2 "Capacitors_SMD:C_0805_HandSoldering" H 4350 3300 50 0001 C CNN
  85. F 3 "" H 4350 3300 50 0000 C CNN
  86. 1 4350 3300
  87. 1 0 0 -1
  88. $EndComp
  89. Connection ~ 4350 3200
  90. Wire Wire Line
  91. 4350 3200 6350 3200
  92. Connection ~ 4350 3400
  93. Wire Wire Line
  94. 4350 3400 4950 3400
  95. Wire Wire Line
  96. 3600 3400 4350 3400
  97. $Comp
  98. L pspice:INDUCTOR L1
  99. U 1 1 5CBC842B
  100. P 4250 3750
  101. F 0 "L1" H 4250 3965 50 0000 C CNN
  102. F 1 "33uH" H 4250 3874 50 0000 C CNN
  103. F 2 "Inductors:Inductor_Taiyo-Yuden_NR-60xx_HandSoldering" H 4250 3750 50 0001 C CNN
  104. F 3 "" H 4250 3750 50 0000 C CNN
  105. 1 4250 3750
  106. 1 0 0 -1
  107. $EndComp
  108. Wire Wire Line
  109. 4000 3750 4000 3200
  110. Wire Wire Line
  111. 4000 3200 4200 3200
  112. Connection ~ 4200 3200
  113. Wire Wire Line
  114. 4500 3500 4500 3750
  115. Wire Wire Line
  116. 4500 3500 5200 3500
  117. Wire Wire Line
  118. 4950 3300 4950 3400
  119. Wire Wire Line
  120. 4950 3300 6350 3300
  121. Connection ~ 4950 3400
  122. Wire Wire Line
  123. 4950 3400 6350 3400
  124. $Comp
  125. L device:C_Small C8
  126. U 1 1 5CBC8B80
  127. P 5600 2350
  128. F 0 "C8" V 5371 2350 50 0000 C CNN
  129. F 1 "0.1uF" V 5462 2350 50 0000 C CNN
  130. F 2 "Capacitors_SMD:C_0805_HandSoldering" H 5600 2350 50 0001 C CNN
  131. F 3 "" H 5600 2350 50 0000 C CNN
  132. 1 5600 2350
  133. 0 1 1 0
  134. $EndComp
  135. $Comp
  136. L device:R R12
  137. U 1 1 5CBC8C04
  138. P 5850 2350
  139. F 0 "R12" V 5643 2350 50 0000 C CNN
  140. F 1 "1K" V 5734 2350 50 0000 C CNN
  141. F 2 "Capacitors_SMD:C_0805_HandSoldering" V 5780 2350 50 0001 C CNN
  142. F 3 "" H 5850 2350 50 0000 C CNN
  143. 1 5850 2350
  144. 0 1 1 0
  145. $EndComp
  146. Wire Wire Line
  147. 5500 2350 5150 2350
  148. Wire Wire Line
  149. 5150 2350 5150 2800
  150. Wire Wire Line
  151. 5150 2800 6350 2800
  152. $Comp
  153. L power:GND #PWR0131
  154. U 1 1 5CBC8E91
  155. P 6150 2350
  156. F 0 "#PWR0131" H 6150 2100 50 0001 C CNN
  157. F 1 "GND" H 6155 2177 50 0000 C CNN
  158. F 2 "" H 6150 2350 50 0000 C CNN
  159. F 3 "" H 6150 2350 50 0000 C CNN
  160. 1 6150 2350
  161. 1 0 0 -1
  162. $EndComp
  163. Wire Wire Line
  164. 6150 2350 6000 2350
  165. Connection ~ 5950 3000
  166. Wire Wire Line
  167. 5950 3000 5200 3000
  168. $Comp
  169. L pspice:INDUCTOR L2
  170. U 1 1 5CBCA135
  171. P 5200 4150
  172. F 0 "L2" V 5154 4228 50 0000 L CNN
  173. F 1 "33uH" V 5245 4228 50 0000 L CNN
  174. F 2 "Inductors:Inductor_Taiyo-Yuden_NR-60xx_HandSoldering" H 5200 4150 50 0001 C CNN
  175. F 3 "" H 5200 4150 50 0000 C CNN
  176. 1 5200 4150
  177. 0 1 1 0
  178. $EndComp
  179. $Comp
  180. L device:C_Small C7
  181. U 1 1 5CBCA445
  182. P 5200 3750
  183. F 0 "C7" H 4950 3650 50 0000 L CNN
  184. F 1 "2.2uF" H 4900 3800 50 0000 L CNN
  185. F 2 "Capacitors_SMD:C_0805_HandSoldering" H 5200 3750 50 0001 C CNN
  186. F 3 "" H 5200 3750 50 0000 C CNN
  187. 1 5200 3750
  188. 1 0 0 -1
  189. $EndComp
  190. Wire Wire Line
  191. 5200 3650 5200 3500
  192. Connection ~ 5200 3500
  193. Wire Wire Line
  194. 5200 3500 6350 3500
  195. Wire Wire Line
  196. 5200 3850 5200 3900
  197. $Comp
  198. L device:R R11
  199. U 1 1 5CBCAC52
  200. P 5450 4400
  201. F 0 "R11" V 5550 4350 50 0000 C CNN
  202. F 1 "24" V 5550 4500 50 0000 C CNN
  203. F 2 "Capacitors_SMD:C_0805_HandSoldering" V 5380 4400 50 0001 C CNN
  204. F 3 "" H 5450 4400 50 0000 C CNN
  205. 1 5450 4400
  206. 0 1 1 0
  207. $EndComp
  208. Wire Wire Line
  209. 5300 4400 5200 4400
  210. Wire Wire Line
  211. 5600 4400 5950 4400
  212. $Comp
  213. L device:C C9
  214. U 1 1 5CBC988F
  215. P 5950 4550
  216. F 0 "C9" H 6065 4596 50 0000 L CNN
  217. F 1 "0.22uF" H 6065 4505 50 0000 L CNN
  218. F 2 "Capacitors_SMD:C_0805_HandSoldering" H 5988 4400 50 0001 C CNN
  219. F 3 "" H 5950 4550 50 0000 C CNN
  220. 1 5950 4550
  221. 1 0 0 -1
  222. $EndComp
  223. Connection ~ 5950 4400
  224. Wire Wire Line
  225. 5950 3000 5950 4400
  226. $Comp
  227. L power:GND #PWR0132
  228. U 1 1 5CBCB68D
  229. P 5950 4700
  230. F 0 "#PWR0132" H 5950 4450 50 0001 C CNN
  231. F 1 "GND" H 5955 4527 50 0000 C CNN
  232. F 2 "" H 5950 4700 50 0000 C CNN
  233. F 3 "" H 5950 4700 50 0000 C CNN
  234. 1 5950 4700
  235. 1 0 0 -1
  236. $EndComp
  237. Wire Wire Line
  238. 5200 4400 5200 4750
  239. Connection ~ 5200 4400
  240. $Comp
  241. L device:R R10
  242. U 1 1 5CBCBDA1
  243. P 5200 4900
  244. F 0 "R10" H 5270 4946 50 0000 L CNN
  245. F 1 "0.2" H 5270 4855 50 0000 L CNN
  246. F 2 "Capacitors_SMD:C_0805_HandSoldering" V 5130 4900 50 0001 C CNN
  247. F 3 "" H 5200 4900 50 0000 C CNN
  248. 1 5200 4900
  249. 1 0 0 -1
  250. $EndComp
  251. $Comp
  252. L power:GND #PWR0133
  253. U 1 1 5CBCC005
  254. P 5200 5050
  255. F 0 "#PWR0133" H 5200 4800 50 0001 C CNN
  256. F 1 "GND" H 5205 4877 50 0000 C CNN
  257. F 2 "" H 5200 5050 50 0000 C CNN
  258. F 3 "" H 5200 5050 50 0000 C CNN
  259. 1 5200 5050
  260. 1 0 0 -1
  261. $EndComp
  262. $Comp
  263. L device:D_Schottky D2
  264. U 1 1 5CBCC66F
  265. P 5350 3900
  266. F 0 "D2" H 5350 3684 50 0000 C CNN
  267. F 1 "D_Schottky" H 5050 3750 50 0000 C CNN
  268. F 2 "Diodes_SMD:SOD-323_HandSoldering" H 5350 3900 50 0001 C CNN
  269. F 3 "" H 5350 3900 50 0000 C CNN
  270. 1 5350 3900
  271. -1 0 0 1
  272. $EndComp
  273. Connection ~ 5200 3900
  274. Wire Wire Line
  275. 5500 3900 6800 3900
  276. Wire Wire Line
  277. 7000 3900 7000 4100
  278. $Comp
  279. L device:R_Variable R9
  280. U 1 1 5CBCD72A
  281. P 3100 6500
  282. F 0 "R9" H 2992 6454 50 0000 R CNN
  283. F 1 "100K" H 2992 6545 50 0000 R CNN
  284. F 2 "Pin_Headers:Pin_Header_Straight_1x04" V 3030 6500 50 0001 C CNN
  285. F 3 "" H 3100 6500 50 0000 C CNN
  286. 1 3100 6500
  287. 1 0 0 -1
  288. $EndComp
  289. $Comp
  290. L device:R R13
  291. U 1 1 5CBCD7D5
  292. P 6800 4850
  293. F 0 "R13" H 6870 4896 50 0000 L CNN
  294. F 1 "12.4K" H 6870 4805 50 0000 L CNN
  295. F 2 "Capacitors_SMD:C_0805_HandSoldering" V 6730 4850 50 0001 C CNN
  296. F 3 "" H 6800 4850 50 0000 C CNN
  297. 1 6800 4850
  298. 1 0 0 -1
  299. $EndComp
  300. Wire Wire Line
  301. 6800 4600 6800 4650
  302. Wire Wire Line
  303. 6800 4650 6550 4650
  304. Wire Wire Line
  305. 6550 4650 6550 3700
  306. Wire Wire Line
  307. 6550 3700 6200 3700
  308. Wire Wire Line
  309. 6200 3700 6200 2900
  310. Connection ~ 6800 4650
  311. Wire Wire Line
  312. 6800 4650 6800 4700
  313. Connection ~ 6200 2900
  314. Wire Wire Line
  315. 6200 2900 5200 2900
  316. Wire Wire Line
  317. 7000 4100 7100 4100
  318. Wire Wire Line
  319. 7100 4100 7100 5250
  320. Wire Wire Line
  321. 7100 4100 7400 4100
  322. Wire Wire Line
  323. 7400 4100 7400 4500
  324. Connection ~ 7100 4100
  325. $Comp
  326. L device:C_Small C10
  327. U 1 1 5CBCF221
  328. P 7400 4600
  329. F 0 "C10" H 7492 4646 50 0000 L CNN
  330. F 1 "22uF" H 7492 4555 50 0000 L CNN
  331. F 2 "Capacitors_Tantalum_SMD:Tantalum_Case-C_EIA-6032-28_Hand" H 7400 4600 50 0001 C CNN
  332. F 3 "" H 7400 4600 50 0000 C CNN
  333. 1 7400 4600
  334. 1 0 0 -1
  335. $EndComp
  336. Text Notes 7500 3500 0 50 ~ 0
  337. Two 22uF capacitors, \nare marked as electrolytic \non data sheet.\nRest can be ceramic.
  338. Text Notes 3600 4550 0 50 ~ 0
  339. I should've searched for \nthis symbol online first.
  340. $Comp
  341. L power:GND #PWR0134
  342. U 1 1 5CBD1864
  343. P 6800 5000
  344. F 0 "#PWR0134" H 6800 4750 50 0001 C CNN
  345. F 1 "GND" H 6805 4827 50 0000 C CNN
  346. F 2 "" H 6800 5000 50 0000 C CNN
  347. F 3 "" H 6800 5000 50 0000 C CNN
  348. 1 6800 5000
  349. 1 0 0 -1
  350. $EndComp
  351. Text Notes 7200 2150 0 50 ~ 0
  352. How this is tuned:\nThe V divider on Feedback pin\ndetermines float voltage.\nThe R downstream of I_feedback \n(after 24 ohm resistor)\ndetermines current (100mV / R)\nSee data sheet for more details.\nEssentially: Set float voltage on r divider\nand make sure current resistor is high enough\nto be low current.
  353. Wire Wire Line
  354. 6550 3700 7950 3700
  355. Connection ~ 6550 3700
  356. Text HLabel 7950 3700 2 50 Output ~ 0
  357. LT_FloatVoltage
  358. $Comp
  359. L power:GND #PWR0135
  360. U 1 1 5CBD2B70
  361. P 7400 4700
  362. F 0 "#PWR0135" H 7400 4450 50 0001 C CNN
  363. F 1 "GND" H 7405 4527 50 0000 C CNN
  364. F 2 "" H 7400 4700 50 0000 C CNN
  365. F 3 "" H 7400 4700 50 0000 C CNN
  366. 1 7400 4700
  367. 1 0 0 -1
  368. $EndComp
  369. Text HLabel 7100 5250 2 50 Input ~ 0
  370. LT_BATCHRG
  371. Text Notes 8150 5400 0 50 ~ 0
  372. Example calculation for R1:\nR1 = (R2(Vbat - 1.245) )\ (1.245+R2(0.3uA))\nwith default R2 at 12,400\nDesired Vbat float of 13.8 (lead)\n(13.8 - 1.245) * 12400 == 155682\n1.245 + (12400 * .000003) == .03720 + 1.245 == 1.2822\n155682/1.2822 == 121417\n\nIt would be evil for them to put 0.3uA and\nexpect you to convert that to 0.000003A\nBut that's what they did. At least they\ngive an example to check.\n\nFive zeros on that.\n\nSee docs for more details.\n\n\n\n
  373. Text Notes 5900 5950 0 50 ~ 0
  374. Variable Resistor should be\na max of 120K, for lead battery\nLowest, of 1.3V for nicd (must\nbe over 1.245) would be 532\nso a 536 (E48) resistor.\n
  375. $Comp
  376. L device:R R5
  377. U 1 1 5CBD3F6D
  378. P 1950 6650
  379. F 0 "R5" H 2020 6696 50 0000 L CNN
  380. F 1 "536" H 2020 6605 50 0000 L CNN
  381. F 2 "Capacitors_SMD:C_0805_HandSoldering" V 1880 6650 50 0001 C CNN
  382. F 3 "" H 1950 6650 50 0000 C CNN
  383. 1 1950 6650
  384. 1 0 0 -1
  385. $EndComp
  386. Wire Wire Line
  387. 6800 3900 6800 4000
  388. Connection ~ 6800 3900
  389. Wire Wire Line
  390. 6800 3900 7000 3900
  391. Text Label 6800 4000 0 50 ~ 0
  392. VDIVIN
  393. Text Label 6800 4600 0 50 ~ 0
  394. VDIVOUT
  395. Text Notes 2800 5050 0 50 ~ 0
  396. Voltage Divider
  397. Text Notes 3350 5700 0 50 ~ 0
  398. Allows switching between\n1)536 ohm for 1.3V nicad\n2)4.2lithium ion (28700ohm, use 0.1%)\n3)6V lead\n4)12V lead, but variable\n(to 20K plus 100K variable\nresistor)\n
  399. Wire Notes Line
  400. 4850 7050 1500 7050
  401. Wire Notes Line
  402. 1500 7050 1500 4850
  403. Wire Notes Line
  404. 1500 4850 4850 4850
  405. Wire Notes Line
  406. 4850 4850 4850 7050
  407. $Comp
  408. L device:R R8
  409. U 1 1 5CBD820D
  410. P 3100 6050
  411. F 0 "R8" H 3170 6096 50 0000 L CNN
  412. F 1 "2K" H 3170 6005 50 0000 L CNN
  413. F 2 "Capacitors_SMD:C_0805_HandSoldering" V 3030 6050 50 0001 C CNN
  414. F 3 "" H 3100 6050 50 0000 C CNN
  415. 1 3100 6050
  416. 1 0 0 -1
  417. $EndComp
  418. Wire Wire Line
  419. 3100 6350 3100 6200
  420. Wire Wire Line
  421. 3100 6800 3100 6650
  422. Wire Wire Line
  423. 2900 5700 3100 5700
  424. Wire Wire Line
  425. 3100 5700 3100 5900
  426. Wire Wire Line
  427. 2150 6300 1950 6300
  428. Wire Wire Line
  429. 1950 6300 1950 6500
  430. Wire Wire Line
  431. 2800 5300 2800 5200
  432. Wire Wire Line
  433. 2800 6800 3100 6800
  434. Text Label 2800 6900 0 50 ~ 0
  435. VDIVOUT
  436. Text Label 2800 5200 0 50 ~ 0
  437. VDIVIN
  438. $Comp
  439. L switches:SW_SP3T SW2
  440. U 1 1 5CBDE680
  441. P 2800 5500
  442. F 0 "SW2" V 2754 5646 50 0000 L CNN
  443. F 1 "SW_SP3T" V 2845 5646 50 0000 L CNN
  444. F 2 "Buttons_Switches_SMD:SW_SP3T_PCM13" H 2175 5675 50 0001 C CNN
  445. F 3 "" H 2175 5675 50 0000 C CNN
  446. 1 2800 5500
  447. 0 1 1 0
  448. $EndComp
  449. $Comp
  450. L switches:SW_DPDT_x2 SW1
  451. U 1 1 5CBE02E2
  452. P 2250 6100
  453. F 0 "SW1" V 2204 6248 50 0000 L CNN
  454. F 1 "SW_DPDT_x2" V 2150 5550 50 0000 L CNN
  455. F 2 "Buttons_Switches_SMD:SW_SPDT_PCM12" H 2250 6100 50 0001 C CNN
  456. F 3 "" H 2250 6100 50 0000 C CNN
  457. 1 2250 6100
  458. 0 1 1 0
  459. $EndComp
  460. $Comp
  461. L device:R R6
  462. U 1 1 5CBE0901
  463. P 2350 6650
  464. F 0 "R6" H 2420 6696 50 0000 L CNN
  465. F 1 "28.7K 1%" H 2420 6605 50 0000 L CNN
  466. F 2 "Capacitors_SMD:C_0805_HandSoldering" V 2280 6650 50 0001 C CNN
  467. F 3 "" H 2350 6650 50 0000 C CNN
  468. 1 2350 6650
  469. 1 0 0 -1
  470. $EndComp
  471. Wire Wire Line
  472. 1950 6800 2350 6800
  473. Wire Wire Line
  474. 2350 6800 2700 6800
  475. Connection ~ 2350 6800
  476. Connection ~ 2800 6800
  477. Wire Wire Line
  478. 2350 6500 2350 6300
  479. Wire Wire Line
  480. 2250 5900 2700 5900
  481. Wire Wire Line
  482. 2700 5900 2700 5700
  483. Wire Wire Line
  484. 2800 6800 2800 6900
  485. $Comp
  486. L device:R R7
  487. U 1 1 5CBE4866
  488. P 2700 6300
  489. F 0 "R7" H 2770 6346 50 0000 L CNN
  490. F 1 "54.9K" H 2770 6255 50 0000 L CNN
  491. F 2 "Capacitors_SMD:C_0805_HandSoldering" V 2630 6300 50 0001 C CNN
  492. F 3 "" H 2700 6300 50 0000 C CNN
  493. 1 2700 6300
  494. 1 0 0 -1
  495. $EndComp
  496. Wire Wire Line
  497. 2700 6150 2700 5900
  498. Connection ~ 2700 5900
  499. Wire Wire Line
  500. 2700 6450 2700 6800
  501. Connection ~ 2700 6800
  502. Wire Wire Line
  503. 2700 6800 2800 6800
  504. Text HLabel 5200 4400 0 50 Input ~ 0
  505. LT_IFEEDBACK
  506. Text Notes 2650 3050 0 50 ~ 0
  507. Data Sheet mentions that input surges \ncan fry 22uf input\nbut a 2.2uf ceramic will work \n(keep it close to ic).\n22uf on output should be tantalum.
  508. $EndSCHEMATC