Chemistry-Independent

Battery Chargers

10

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UNITS

QTY

DESIGNATION

Table 1a. Component Selection for Figure 3 Circuit (Also Use for Figure 4)

SOURCE/TYPE

NOTES

Sprague, 595D476X0020D7T, D case

AVX, TPSE476M020R0150, E case

20V, ESR at 250kHz

≤ 0.4Ω

µF

0.1

C2, C4, C7, C9

10V, ceramic or low ESR

µF

1

C5

nF

47

C3

µF

47

C1

35V

10V

nF

22

C8

µF

22

C6

NIEC, NSQ03A04, FLAT-PAK (SMC)

NIEC, 30VQ04F, TO-252AA (SMD)

Motorola, MBRS340T3, SMC

Motorola, MBRD340T4, DPAK

Diodes Inc., SK33, SMC

IR, 30BQ040, SMC

1N4150 equivalent

D2, D5

Motorola, MMSF5N03HD, SO-8

Motorola, MMDF3N03HD, SO-8

Motorola, MTD20N03HDL, DPAK

IR, IRF7201, SO-8

IR, IRF7303, SO-8

IR, IRF7603, Micro8

Siliconix, Si9410DY, SO-8

Siliconix, Si9936DY, SO-8

Siliconix, Si6954DQ, TSSOP-8

power MOSFET

Motorola, 2N7002LT1, SOT23

Motorola, MMBF170LT1, SOT23

Diodes Inc., 2N7002, SOT23

Diodes Inc., BS870, SOT23

Zetex, ZVN3306F, SOT23

Central Semiconductor, 2N7002, SOT23

logic level, N-channel power

MOSFET, 2N7002 equivalent

M2

M1

D1, D3, D4

2N3906 equivalent

Q1

IRC, CHP1100R100F13, 2512

IRC, LR251201R100F, 2512

Dale, WSL-2512/0.1

Ω/±1%, 2512

±1%, 1W

m

Ω

100

R1A

Sumida, RCH-110/220M, 10mm x 10mm x 10mm

Coiltronics, UP2-220, 0.541" x 0.345" x 0.231"

Coilcraft, DO3340P-223, 0.510" x 0.370" x 0.450"

Coilcraft, DO5022P-223, 0.730" x 0.600" x 0.280"

Note: size in L x W x H

µH

22

L1

±5%, 1/8W

Ω

1

R1B

±5%, 1/16W

k

Ω

10

R2, R4

±1%, 1/16W

k

Ω

10

R3

±5%, 1/16W

Ω

10

R5, R7

±5%, 1/8W

k

Ω

10

R6

4.3V zener diode,

1N4731 or equivalent

D6