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CN3387

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ShangHai Consonance Elec DC-DC Converters, SSOP-10. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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CN3387

ShangHai Consonance Elec · DC-DC Converters · SSOP-10

CN3387 from ShangHai Consonance Elec, in a SSOP-10. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 STAT output Charge status indicator output (CMOS). Drives high while charging and low when charging has terminated. Can sink/source approximately 10 mA to drive a status LED directly or interface to an MCU input.
2 CE input Chip enable input. A high level (>=2.2V) puts CN3387 in normal operation; a low level (<0.7V) disables the chip. Compatible with TTL and CMOS logic levels; do not leave in the 0.7V-2.2V undefined region.
3 FB input Battery voltage feedback input. Connects to an external resistor divider (R1/R2) to sense battery voltage per VBAT = VFB x (1 + R1/R2). Constant-current termination threshold Vcct = 1.125V typ; over-voltage / peak threshold 1.205V typ; recharge threshold 1.105V typ.
4 BAT input Battery positive-terminal sense input. Connects directly to the battery pack positive terminal for over-voltage protection (Vov = 1.285V typ threshold referred internally). Draws ~5.8 uA typical at VBAT = 12V.
5 GND power_in Device ground and return for both the input supply and the battery negative terminal.
6 LDRV output External low-side N-channel power MOSFET gate driver output. Sources/sinks up to ~0.65 A peak to switch the boost inductor low-side FET; VOH >= VCC-0.3V at 5 mA, VOL <= 0.3V at -5 mA.
7 HDRV output External high-side P-channel power MOSFET gate driver output for battery-short / low-battery protection topology (Figure 2). Sources/sinks up to ~0.8 A peak; VOH >= VCC-0.3V at 5 mA, VOL <= 0.3V at -5 mA. Leave unconnected when the external PMOS is not used (Figure 1 topology).
8 VIN power_in Positive supply input for the internal circuitry (2.7V to 6.5V) and also the positive input for the inductor current sense comparator. Quiescent current 300 uA typ (no switching); shutdown current 0 uA typ when CE is low.
9 CSN input Negative input of the inductor (input) current sense comparator. An external sense resistor Rcs is placed between VIN and CSN. In constant-current mode the upper (VIN-CSN) threshold is 125 mV typ and the lower threshold is 85 mV typ.
10 CT passive Timing-capacitor connection. A capacitor C2 (>1 nF) from CT to GND sets the maintenance-charge timeout per T(s) = 12.18e9 x C2. Timer starts when CN3387 enters top-off/maintenance mode and terminates charging on expiry.

Key specifications

Parameter Value
Manufacturer ShangHai Consonance Elec
Package SSOP-10
Category PMIC
Pins 10

Ordering variants

Same part, different packaging or reel option.

  • CN3387

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
输入电压范围 VIN 2.7 6.5 伏特 5
工作温度范围 TA -40 85 ℃ 4
工作电流 IVIN 230 300 370 微安 VFB＝1.5V，No Switching 5
关断电流 Ioff 0 2 微安 CE管脚低电平 5
开关频率 fSW 200 1000 KHz 5
检测电压高端阈值 恒流 VCSHI 113 123 133 毫伏 恒流 (VIN－VCSN) 从0V上升，直到VLDRV＜0.5V 5
检测电压高端阈值 维持充电 VCSHI 62 72 82 毫伏 维持充电 5
检测电压低端阈值 恒流 VCSLO 77 87 97 毫伏 恒流 (VIN－VCSN) 从0.2V下降，直到VLDRV＞(VCC－0.5V) 5
检测电压低端阈值 维持充电 VCSLO 35 45 55 毫伏 维持充电 5
输出高电平传输延时 tDPDH 72 纳秒 (VIN－VCSN)：0.15V到0.075V 5
输出低电平传输延时 tDPDL 66 纳秒 (VIN－VCSN)：0.06V到0.135V 5
CSN管脚输入电流 ICSN 100 纳安 5
FB管脚最高电压 Vhigh 1.193 1.205 1.217 伏特 FB管脚电压上升 5
FB恒流充电终止电压 VCCT 1.1 1.125 1.15 伏特 FB管脚电压上升 5
FB管脚再充电阈值 Vrech 1.08 1.105 1.13 伏特 FB管脚电压下降 5
FB管脚电流 IFB 0 100 纳安 VFB＝5.5V 5
过压保护阈值 VOV 1.255 1.285 1.315 伏特 BAT管脚电压上升 5
过压释放阈值 VOVRLS 1.205 1.235 1.265 伏特 BAT管脚电压下降 5
BAT管脚流入电流 IBAT 4.6 5.8 7 微安 VBAT＝12V 5
LDRV管脚输出电流 0.65 安培 VCSN＝VIN, VDRV＝0.5×VCC 5
LDRV管脚下拉电流 0.65 安培 VCSN＝VIN－0.2V，VLDRV＝0.5×VCC 5
LDRV输出低电平 VOL 0.3 伏特 ILDRV＝－5mA 5
HDRV管脚输出电流 0.8 安培 VCSN＝VIN, VDRV＝0.5×VCC 5
HDRV管脚下拉电流 0.8 安培 VCSN＝VIN－0.2V，VHDRV＝0.5×VCC 5
HDRV输出低电平 VOL 0.3 伏特 IHDRV＝－5mA 5
CE输入低电平 VCEL 0.7 伏特 CE电压下降 6
CE输入高电平 VCEH 2.2 伏特 CE电压上升 6
CE输入电流 ICEL ICEL -1 微安 CE=GND，VIN=6V 6
CE输入电流 ICEH ICEH 1 微安 CE=VIN=6V 6
STAT管脚下拉电流 ISINK 10 毫安 VSTAT=0.3V，结束模式 6
STAT管脚输出电流 ISRC 10 毫安 VSTAT=4.7V，充电模式 6
VIN、CSN、CE管脚电压 VIN, CSN, CE -0.3 6.5 V 4
BAT管脚电压 VBAT -0.3 18 V 4
CSN与VIN管脚电压 -0.3 0.3 V 4
STAT、LDRV和HDRV管脚电压 -0.3 V 4
FB和CT管脚电压 -0.3 V 4
最大结温 150 ℃ 4
存储温度 -65 150 ℃ 4

CAD (KiCad official)

  • Symbol: CN3387
  • Footprint: Package_SO:SSOP-10_3.9x4.9mm_P1.00mm
  • 3D model: SSOP-10 (KiCad packages3D, STEP)
  • 3D model files: cn3387-etched.step / cn3387-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cn3387.step / cn3387.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: ShangHai Consonance Elec datasheet (13 pp, sha256 f6116a5972c222f1, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF